NG-SHM CLASS DP – Servo Hydraulic Testing Machine

The NG-SHM Class DP – Servo Hydraulic Testing Machine is specifically developed to perform high-force mechanical testing on a broad range of materials for various industries. Its main purpose is to evaluate the tensile, compression, bending, shearing, and other mechanical characteristics of materials such as fasteners, rebar, chains, welds, and castings. It is equipped with a servo-controlled hydraulic system that allows extremely accurate and repeatable test results under different loading conditions.

The machine features a single-zone test space with an upper actuator, enabling tests on extra-long specimens with significant elongation. It supports capacities from 600kN to 2000kN and provides precise measurement of force and displacement through its advanced transducers and encoders. The system includes high-performance wedge-type hydraulic grips, adjustable clamping force, and pressure-regulated hydraulic controls, providing a reliable solution for laboratories and manufacturers that require consistent mechanical property evaluation of metals and structural components.

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Yes, the NG-SHM Class DP – Servo Hydraulic Testing Machine complies with ISO 7500-1 standards. This international standard defines calibration and verification procedures for testing machines that measure uniaxial forces, so that they provide accurate and repeatable results. By meeting ISO 7500-1 requirements, the machine demonstrates its capability to deliver reliable force measurements during tension, compression, and bending tests.

Compliance with this standard confirms that the equipment is suitable for use in environments where adherence to recognized testing protocols is critical. It supports consistent quality control, research accuracy, and certification processes across a number of industries, including construction, automotive, aerospace, and metallurgy.

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Yes, the NG-SHM Class DP – Servo Hydraulic Testing Machine complies with ASTM E4 standards. ASTM E4 is a recognized standard that outlines procedures for verifying force measurement accuracy of tension and compression testing machines. Compliance with this standard guarantees that the machine can provide accurate, repeatable, and traceable force readings under a number of testing conditions.

By meeting ASTM E4 requirements, the NG-SHM Class DP is validated for use in material testing applications that require strict adherence to industry benchmarks, particularly in North America and international laboratories following ASTM protocols. This compliance makes the machine reliable for use in quality assurance, research, and certification processes across industries such as aerospace, automotive, metal production, and civil engineering.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine is offered in three distinct force capacities, each designed to meet the specific testing needs of different materials and industries. These capacities include 600kN, 1000kN, and 2000kN. In pounds-force units, these correspond to approximately 134,885.36 lbf, 224,808.94 lbf, and 449,617.88 lbf, respectively. This range allows the machine to handle both medium and extremely high force applications with precision.

These force capacities make it suitable for testing components with different strength levels, from standard fasteners to heavy-duty structural materials. Users can select a model based on the specific load requirements of their tests, assuring both safety and accuracy. Each model maintains high performance standards with accurate force measurement and stable control, regardless of capacity. This flexibility makes the machine suitable for use in advanced material testing laboratories, construction material assessment, and manufacturing quality control.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine features a load frame configuration with either 2 or 4 columns, depending on the model and testing requirements. This configuration supports a servo-controlled hydraulic system that provides precise force application and control during material testing. The robust column structure offers mechanical stability, allowing the machine to perform under high-load conditions without deformation or misalignment.

A 4-column frame offers enhanced rigidity and is typically preferred for applications requiring extremely accurate alignment and high-capacity testing. The servo-controlled hydraulic setup enables smooth and accurate actuator movement, improving control over load applications during different test types such as tension, compression, and bending. This setup is essential for repeatable results in material strength analysis.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine is equipped with single-zone test space, which is a key feature that contributes to its efficiency and ease of use. This configuration means that all mechanical tests- tension, compression, bending, or shearing- are conducted in one space. This avoids the need to move or reconfigure the setup for different tests, saving time and effort.

The single zone design is particularly beneficial when working with extra-long or high-elongation specimens, as it provides a clear and uninterrupted area for testing. It also enhances alignment accuracy, contributing to consistent and repeatable test results. This layout simplifies operations, reduces setup complexity, and supports ergonomic sample handling. For laboratories and testing environments where productivity, reliability, and safety are essential, a single-zone test space helps simplify procedures and facilitate smooth testing workflows.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine is engineered to test a wide selection of typical specimens commonly used in numerous industrial sectors. These specimens include fasteners, rebar, chains, welds, and castings. Each of these materials requires precise mechanical testing to assess their strength, durability, and suitability for structural or load-bearing applications.

Fasteners and welds, for example, must be tested to verify their performance under stress in critical joints and assemblies. Rebar and chains are evaluated for their strength and flexibility, especially in construction and lifting applications. Castings, which are often complex in shape and composition, are tested to determine their load-bearing capacity and resistance to cracking or deformation.

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The single zone design of the NG-SHM Class DP – Servo Hydraulic Testing Machine allows all types of mechanical tests—such as tension, compression, bending, and shearing—to be completed within one unified test area. This setup eliminates the need for repositioning specimens or switching between multiple test spaces, which saves time and reduces setup errors. It also provides better alignment during testing, which is necessary for accurate and consistent results.

In addition to improving test efficiency, the machine’s compact and well-thought-out design supports ergonomic operation. The layout is user-friendly, allowing operators to handle specimens more comfortably and safely. This contributes to smoother workflows in laboratory and industrial settings. The single zone configuration also reduces the machine’s overall footprint, making it easier to install even in limited space environments.

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The upper actuator of the NG-SHM Class DP – Servo Hydraulic Testing Machine provides several key advantages that contribute to the system’s accuracy and usability. One of its most important features is excellent axis alignment, which ensures that the force applied during testing is distributed evenly along the specimen. This improves test results accuracy and reduces specimen damage risk due to misalignment.

Another important benefit is its effective shock absorption, which stabilizes the system during high-force testing. This feature minimizes vibrations and movement, resulting in smooth operation and protecting internal components from unnecessary wear. Additionally, the actuator allows for easy adjustment of the testing space, enabling quick adaptation to various specimen sizes and test types. These combined features help make the machine more flexible, precise, and durable.

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The advanced wedge-type hydraulic tensile grips on the NG-SHM Class DP – Servo Hydraulic Testing Machine are necessary for securely holding test specimens during mechanical testing. These grips are designed to automatically adjust and lock onto the specimen with strong and stable pressure, which is especially important when testing materials that are high in strength or that vary in shape and size. This guarantees that the specimen will not slip or move during the test, allowing for precise and consistent results.

These grips are compatible with an extensive range of materials and sample types, making the machine versatile for different testing needs. Their design allows for quick specimen installation and removal, reducing setup time and improving efficiency. Hydraulic operation also maintains an even clamping pressure throughout the test, which protects the specimen from uneven stress that could affect data accuracy. This high gripping performance is crucial in environments where reliability and detailed material analysis are required.

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The long-travel double-acting cylinder in the NG-SHM Class DP – Servo Hydraulic Testing Machine allows it to handle different sizes of specimens, making it highly adaptable for different testing procedures. This extended movement range guarantees that both short and long specimens can be tested without complex adjustments or additional fixtures. It supports efficient setups and improves testing flexibility in laboratories and industrial environments.

The piston and rod are made from a one-body forging, which provides exceptional strength and resistance to impact. This design, combined with high-quality sealing components, provides reliable sealing throughout the cylinder’s movement. The result is a highly accurate and repeatable testing process, even under heavy loads and extended operation. Advanced sealing minimizes fluid leakage and maintains consistent pressure control, which is critical for precise and trustworthy test results. These features work together to increase machine reliability and extend service life.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine includes a robust and high-accuracy guidance system that protects the cylinder from lateral forces during operation. Lateral forces can cause misalignment and increase wear on internal components, especially the sealing elements, which maintain hydraulic pressure. By guiding the cylinder precisely along its intended path, this system reduces stress and uneven movement within the hydraulic assembly.

This accurate guidance not only enhances the testing process alignment but also significantly extends the working life of the sealing components. It makes sure that the seals are not exposed to unnecessary friction or pressure, which can lead to early damage or leakage. This protection contributes to more reliable operation over time, better test consistency, and lower maintenance requirements. The combination of mechanical strength and precision in this guidance system is essential for the machine's long-term durability and efficiency.

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The “I” shape force transducer used in the NG-SHM Class DP – Servo Hydraulic Testing Machine offers several benefits that contribute to the machine’s overall accuracy and stability during testing. Its design provides excellent linearity, meaning the output signal closely follows the applied force consistently and predictably. This is crucial for producing reliable and accurate test data across a broad spectrum of force levels.

Additionally, the transducer is engineered for ultra-high accuracy and long-term stability. It maintains precise measurements over time without significant drift, which is necessary for repeated tests and long-term use in demanding environments. Its stable performance under different testing conditions makes certain that results are consistent and trustworthy. This level of precision is particularly important in applications where small measurement errors can significantly affect the analysis of material properties.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine is equipped with a high-quality encoder that allows precise measurement and control of displacement during testing procedures. This encoder is fundamental to detecting even the smallest changes in the position of the actuator or specimen, allowing for accurate tracking of deformation throughout the test. Such precision is necessary for evaluating material behaviors under load, such as elongation or compression.

The encoder not only measures displacement at high resolution but also enables real-time control, which helps maintain stable and controlled test conditions. This level of control improves the reliability and repeatability of results, which is particularly important in quality control and research applications. The consistent and accurate data captured by the encoder supports in-depth analysis and contributes to a deeper understanding of material performance. It also helps operators maintain full control over the test process, enhancing overall efficiency and data integrity.

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The servo valve in the NG-SHM Class DP – Servo Hydraulic Testing Machine is key to delivering high-accuracy control and quick response during testing operations. It precisely regulates the flow and pressure of hydraulic fluid to the actuator, which is necessary for smooth and accurate movement under varying load conditions. This control makes certain that force is applied steadily and according to test specifications, which is important for capturing reliable data.

In addition to its precision, the servo valve is designed for ease of use and maintenance. Its structure allows straightforward handling during setup and servicing, minimizing downtime and simplifying repair or replacement procedures. The fast response of the servo valve enhances machine performance, especially in tests requiring rapid adjustments or dynamic force applications.

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The motor integrated into the NG-SHM Class DP – Servo Hydraulic Testing Machine is designed to deliver efficient and reliable performance, supporting the overall functionality of the system. It is characterized by high efficiency and energy-saving operation, making it suitable for long-term testing environments while reducing power consumption. The motor also provides high starting torque, allowing it to handle sudden loads effectively during testing.

Additional benefits include low noise and minimal vibration during operation, which contribute to a quieter and more stable working environment. These features help maintain machine accuracy while improving user comfort. The motor's high reliability ensures consistent performance over time, and its structure is designed for easy maintenance, reducing the need for frequent servicing or part replacements. Together, these features make the motor a critical component in dependable test execution, energy efficiency, and long-term durability.

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The piston rod of the NG-SHM Class DP – Servo Hydraulic Testing Machine is plated with Nickel and Chrome, with a coating thickness up to 0.1 mm. This plating serves two key purposes: it protects the piston rod from corrosion and significantly reduces wear during operation. By preventing corrosion, plating helps maintain the mechanical strength and surface quality of the rod, which is critical for maintaining accurate and consistent performance over time.

In addition, the reduced wear from this protective layer extends the piston rod's lifespan, minimizing maintenance needs and avoiding unexpected downtime. This is especially important in high-force mechanical testing, where the piston is subjected to intense stress and movement. The smooth, plated surface also improves sealing function, supporting better hydraulic pressure control and overall system efficiency.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine features an extra-thick piston rod, designed to provide high stiffness and enhanced resistance to lateral loading. Lateral loads can introduce unwanted movement and stress that may affect the test's accuracy and stability. The added thickness of the rod strengthens its structural integrity, helping it maintain alignment and reduce deflection during heavy and prolonged use.

This increased stiffness also protects other components within the hydraulic system, such as seals and cylinders, from premature wear caused by bending or uneven forces. By minimizing lateral movement, the machine maintains precise control over the test process and produces reliable, repeatable results. In addition to improving test accuracy, this design choice also extends the equipment's overall durability and service life, enabling it to operate more efficiently and reliably in demanding testing conditions.

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The piston and rod in the NG-SHM Class DP – Servo Hydraulic Testing Machine are manufactured as a one-body forging, which significantly enhances their structural strength and impact resistance. This unified design eliminates any potential defects that could exist in components made from separate parts joined together. As a result, the piston and rod can withstand high mechanical stress and shock loads without deforming or breaking under intense testing conditions.

The one-body forging approach also improves force transmission between the piston and rod, leading to more accurate and consistent test results. Additionally, it reduces the likelihood of mechanical failure and minimizes the need for maintenance or part replacement. This strong and durable construction guarantees that the hydraulic system operates smoothly over a longer period, even when exposed to repeated heavy loads. In demanding testing environments where reliability is critical, this feature provides increased safety and efficiency during operation.

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The sealing components in the NG-SHM Class DP – Servo Hydraulic Testing Machine are specially constructed in a U shape and include a double sealing ring. This configuration is highly effective in preventing hydraulic fluid leakage, even under high-pressure and continuous operation conditions. The double sealing ring provides two contact points, creating a tighter and more secure seal that significantly enhances fluid retention within the hydraulic system.

This advanced sealing design guarantees pressure consistency throughout the testing process, which is necessary for accurate and repeatable results. It also protects internal components from wear caused by fluid leakage or contamination, contributing to the machine's longevity and reliability. It is these sealing components that play a significant role in supporting efficient and trouble-free operation in material testing environments by minimizing maintenance requirements and the risk of performance interruptions.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine incorporates a Halite guidance wear ring to enhance the hydraulic system's stability and efficiency. This component is specifically manufactured to provide high resistance to the lateral forces during piston operation. By absorbing and redistributing these side loads, the wearing ring helps maintain proper alignment of the piston, which is fundamental for accurate and consistent test results.

In addition to its structural role, the Halite wear ring also reduces friction between moving parts. Lower friction contributes to smoother piston movement and decreases wear on internal components, thereby extending the machine's service life. It also supports more precise control over force application and displacement, which is critical in high-accuracy material testing. This dual function of resisting lateral stress while minimizing friction makes the Halite guidance wearing ring a key feature for maintaining reliable, long-term performance.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine uses zero clearance and pre-loading connections between the piston rod and the upper grip to provide high mechanical reliability during testing. Zero clearance means that there is no unwanted space or looseness at the connection point, which prevents movement that could affect test accuracy. Pre-loading applies an initial controlled force to the connection, keeping all parts firmly in position before the actual testing force is applied.

This combination strengthens the structural bond and helps maintain exact alignment throughout the test cycle, reducing the risk of slippage or misalignment that can compromise results. It also minimizes vibration and wear on the connection area, leading to better long-term performance and reduced maintenance needs. This secure connection guarantees that applied forces are transferred directly and efficiently through the system.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine incorporates an advanced copper melting process for producing the piston and guide sleeves in combination with the wearing ring. This method, developed by NextGen Material Testing, involves melting copper into the piston and guide sleeve assembly, which results in a much stronger and more durable connection compared to conventional techniques. Copper enhances the component's structural bonding and wear resistance.

One of the major advantages of this process is that it significantly increases the lifespan of the wearing ring, up to five times longer than that of commonly used polymer-based materials. This increased durability reduces maintenance and replacement frequency, supporting longer operating cycles and more consistent machine performance. The improved thermal and mechanical properties provided by the copper also contribute to better handling of high loads and temperatures.

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The hydraulic power unit of the NG-SHM Class DP – Servo Hydraulic Testing Machine is designed with an intelligent feature that allows the clamping force to be automatically adjusted based on the specific dimensions and material type of the specimen being tested. This automatic adjustment ensures that the grip strength is always appropriate for the sample, reducing the risk of damage due to excessive force or slippage due to insufficient pressure.

By adapting the clamping force precisely to each test's requirements, the system enhances safety and accuracy. It guarantees that the specimen remains securely held in place during the entire test cycle without distortion, especially for delicate or irregularly shaped materials. This function also reduces the need for manual settings, making the operation more convenient and efficient. It supports consistent testing conditions for different specimen types and contributes to reliable, high-quality results in material evaluation processes.

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The hydraulic power unit in the NG-SHM Class DP – Servo Hydraulic Testing Machine is engineered to maintain excellent axial alignment, which avoids lateral loading during testing operations. Axial alignment ensures that the force applied through the hydraulic system is directed precisely along the intended vertical axis of the specimen. This precise alignment reduces side forces that can cause bending, uneven stress distribution, or inaccurate test results.

Avoiding lateral loading protects the specimen from unintended deformation but also reduces wear on internal components such as seals and pistons. It ensures smooth actuator movement and consistent force delivery, both of which are vital for generating accurate and repeatable results. This alignment also contributes to the equipment's longevity, as it minimizes stress on mechanical parts.

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In the NG-SHM Class DP – Servo Hydraulic Testing Machine, the hydraulic cylinders are integrated directly into the grip body, which allows for a more compact and stable structure. This internal placement supports stronger and more balanced force transmission during specimen clamping. In addition, the system features dual-direction clamping, meaning it applies force from both sides of the grip. This holds the specimen evenly and securely in place.

This design ensures proper alignment of the specimen regardless of its thickness or shape, which is essential for accurate testing. By maintaining even pressure in both directions, the grip automatically centers the sample and eliminates the risk of tilting or misalignment. This improves the consistency and accuracy of the test results and reduces the chance of damage to the specimen or machine. The combination of embedded cylinders and dual-direction clamping makes setup easier, faster, and more precise, especially when dealing with various specimen sizes in a single testing environment.

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The piston in the NG-SHM Class DP – Servo Hydraulic Testing Machine is made from alloy steel, a material chosen for its high hardness and exceptional abrasion resistance. This construction offers a significant benefit in terms of durability, as it allows the piston to withstand the continuous mechanical stress and friction generated during high-force testing procedures without wearing down quickly or losing its shape.

The high hardness of alloy steel ensures that the piston maintains its structural integrity through extended use, contributing to consistent performance and minimizing the need for replacement or repair. Its abrasion resistance also protects against surface damage from hydraulic fluid movement and pressure cycles, which helps preserve sealing effectiveness and pressure stability. These qualities are especially important in environments where the machine is used intensively, as they enhance reliability, support accurate testing, and reduce overall maintenance costs.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine features a piston and piston rod constructed as a one-body forging, which provides superior structural strength and impact resistance. This one-piece design removes connection points prone to stress and wear in multi-part assemblies. As a result, the system benefits from more reliable force transmission, reduced mechanical failure risk, and enhanced durability during repeated testing under high loads.

Additionally, the piston is equipped with a high-performance sealing ring capable of withstanding pressures up to 70 MPa. This robust seal prevents hydraulic fluid leakage even under extreme operating conditions, maintaining pressure integrity throughout each test. The combination of one-body forging and high-pressure sealing guarantees that the hydraulic system functions with precision, delivering accurate test forces while maintaining long-term reliability.

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In the NG-SHM Class DP – Servo Hydraulic Testing Machine, the alignment of the upper and lower grips is achieved through mechanical force, which guarantees a high degree of precision and reliability during testing. This mechanical alignment system maintains the correct positioning of both grips, allowing the test specimen to be clamped and loaded without angular deviation or misalignment.

Proper alignment between the grips is critical for applying force uniformly over the specimens. It prevents bending or uneven stress distribution, which could lead to inaccurate results or premature specimen failure. This design not only improves test outcomes accuracy and consistency but also protects mechanical components from excessive wear due to misaligned loading. The reliable and repeatable grip positioning system makes the machine suitable for a wide range of test materials and shapes, reducing the need for manual adjustments and improving operational efficiency in both routine and advanced testing applications.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine features a unique grip design that allows it to clamp a broad range of specimens without changing jaws. This flexibility is especially valuable in testing environments where multiple specimen types and sizes are handled regularly. The grips are engineered to accommodate different geometries and materials securely, resulting in reliable clamping over a diverse test range.

This design minimizes downtime and simplifies workflow, as operators do not need to constantly switch jaws for each new specimen type. It also reduces grip component wear and handling, extending their operational life. The ability to handle multiple specimen types with a single grip setup improves productivity, supports consistent alignment, and enhances testing efficiency. This makes the system practical and user-friendly for laboratories and production facilities that perform varied material evaluations with tight testing schedules.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine is equipped with a logic valve and advanced pressure servo technology that ensures intelligent regulation of hydraulic system pressure. This setup maintains the system pressure within 1MPa above the cylinder pressure, which provides stable and efficient performance. By automatically adjusting the pump output pressure in response to the test force, the system optimizes energy use and minimizes mechanical stress.

When the applied test force is low, the system reduces the pump pressure to save energy and reduce wear. As the test force increases, the pump output is raised to match the cylinder’s needs, resulting in consistent and safe operation. This real-time pressure adjustment contributes to accurate force application, lower noise, reduced heating, and longer service life for hydraulic components. This smart regulation system is a key feature that enhances performance, reliability and operational efficiency in high-precision material testing.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine features adjustable differential pressure within its hydraulic system, a feature that significantly enhances test stability and energy efficiency. By allowing fine control over the pressure difference between system components, this feature makes certain that the testing process remains smooth and free of shaking or vibrations, which could otherwise affect test results.

Stable pressure during testing helps maintain consistent force application and displacement control, which is especially important for precise material evaluations. Additionally, minimizing sudden pressure changes reduces the mechanical load on the system, leading to lower energy consumption and reduced heat generation. This contributes to a cooler operating environment and less strain on cooling systems. The adjustable differential pressure is particularly useful in dynamic or high-load testing situations where control and efficiency are essential, making the machine reliable for a broad spectrum of materials and test conditions.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine is equipped with a gear pump that helps maintain low operational noise, so that the sound level does not exceed 70dB. This feature is especially important in laboratory and industrial environments where a quiet workspace contributes to better working conditions and overall comfort for operators.

The gear pump operates smoothly and steadily, producing minimal vibration and acoustic disturbance during both idle and active test phases. Its construction minimizes abrupt pressure changes and mechanical friction, which are common sources of noise in hydraulic systems. Keeping the noise level below 70dB allows the machine to be used in shared or enclosed spaces without disruption. This low-noise performance also reflects the quality of the system’s engineering, which aims to combine powerful testing capabilities with user-friendly, efficient, and quiet operation.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine features a hydraulic unit designed for easy installation and maintenance, through its semi-open structure. This structure includes a rear cover that opens with two doors, allowing clear and direct access to internal components. This design simplifies routine checks, part replacement, and servicing activities, reducing downtime and improving maintenance efficiency.

With accessible entry points, technicians can quickly locate and address issues without disassembly of major components. This saves time and labor, especially in high-use environments where consistent machine performance is critical. The design also supports safer maintenance practices, as it reduces the need to work in confined or obstructed spaces.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine is equipped with a highly efficient heat management system within its hydraulic unit. It uses a unique pressure differential servo control technique that significantly reduces overall heat generation during operation. This control method guarantees that energy is used efficiently, resulting in lower heat buildup, especially during long or high-load test cycles.

The hydraulic unit is also fitted with an air-cooling device housed within a semi-open structure, which allows for effective ventilation. Cooling can be activated automatically or manually, depending on user preference. An air-cooling motor automatically engages when the oil temperature reaches a preset value shown on the integrated temperature gauge. This automatic response makes certain that the system functions normally even in high-temperature conditions. With a heating power of just 2kW, the unit maintains a balanced thermal output, reducing strain on components and extending the life of both oil and hydraulic parts.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine features a high-precision filtration system that uses a triple filter setup to remove particles from the hydraulic fluid before it reaches the servo valve. This system filters particles smaller than 5 microns, so that the fluid remains clean and free of contaminants that could affect the machine's performance or cause internal wear.

By maintaining such a fine level of filtration, the system protects the servo valve from blockage or abrasion, which enhances its service life and maintains consistent control accuracy during testing. Clean fluid contributes to smoother hydraulic operation, better force regulation, and more precise measurement, all essential in high-accuracy material testing. Additionally, well-maintained fluid quality reduces the need for frequent maintenance and part replacements, making the system easier and more cost-effective to manage over time.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine is equipped with a pressure overload protection system designed to safeguard the hydraulic system from excessive pressure levels. This is achieved through the use of a relief valve, which activates automatically when system pressure rises above its rated threshold. When triggered, the relief valve allows excess hydraulic fluid to overflow safely, preventing damage to the internal components.

This feature is necessary for protecting key parts such as seals, cylinders, and servo valves from overpressure, which can lead to leaks, ruptures, or system failure. By making sure that the system operates within safe pressure limits, the overload protection mechanism maintains the reliability and safety of the machine during all types of testing procedures. It also reduces downtime and repair costs by preventing avoidable damage, contributing to the long-term durability and consistent performance of the equipment in demanding material testing environments.

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The hydraulic power unit of the NG-SHM Class DP – Servo Hydraulic Testing Machine offers several operational and structural benefits due to its dual-pressure design. It consists of two distinct sections: a high-pressure part operating at 25MPa for the main cylinder and a super high-pressure part operating up to 50MPa for the clamping cylinder. This separation allows the system to apply the right amount of pressure for each specific function, enhancing accuracy and safety during tests.

The main cylinder, which handles core mechanical testing tasks, functions at approximately 25MPa, delivering steady and reliable force. Meanwhile, the clamping cylinder uses about 48MPa, making sure that test specimens are held securely. Both pressure systems are efficiently managed by a single motor that powers the oil pump, simplifying the design and lowering energy usage. This integrated approach minimizes mechanical complexity, reduces operational noise, and supports longer system life with fewer components requiring maintenance or replacement.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine is equipped with two separate differential hydraulic circuits, each engineered to improve operational efficiency and ensure specimen safety. The first circuit serves the main cylinder and returns the piston to its starting position after a test is completed. This feature significantly reduces idle time between tests, increasing machine efficiency in high-throughput environments.

The second circuit manages the clamping cylinder. It begins with a low-pressure grip to safely secure the specimen without excessive force. Once the sample is properly positioned, the system automatically switches to high pressure to ensure firm clamping. This step-by-step pressure application prevents premature damage to the specimen due to the high initial clamping force. After the test concludes and the specimen breaks, the system releases the pressure automatically, allowing for smooth specimen removal and preparation for the next test.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine is available in three models: SHM605, SHM106, and SHM206. Each model is built to perform high-accuracy mechanical testing but is able to handle different testing capacities and specimen sizes. This allows users to choose the most suitable model based on the force requirements and application needs of their industry or testing environment.

The main difference between these models lies in their force capacity, dimensions, and ability to handle varied specimen sizes. The SHM605 offers 600kN capacity for small-scale testing, while the SHM106 supports up to 1000kN, ideal for medium-force applications. The SHM206 is the most powerful model with a 2000kN capacity, designed for high-strength materials and large specimens. Each model also differs in piston speed, tension space, and compression space, allowing greater flexibility in choosing the right configuration for specific material testing tasks.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine offers calibration accuracy classified as Class 1 or Class 0.5, depending on the specific model and configuration. These accuracy classes are defined according to international testing standards and indicate the level of precision the machine can achieve in measuring force during mechanical testing processes.

Class 1 calibration allows for a maximum measurement deviation of ±1%, while Class 0.5 provides even higher precision with a deviation limit of only ±0.5%. This guarantees that test results are highly reliable and suitable for demanding applications in industries that require tight quality control, such as aerospace, automotive, construction, and metallurgy. The availability of two accuracy classes enables users to select a level of precision that best fits their testing requirements while maintaining confidence in the machine's consistency and performance.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine provides a force range of 1% to 100% of its full scale (FS). This means the machine can accurately apply and measure test forces starting at just 1% of its maximum capacity, up to the full rated load of each specific model. This wide operating range is important for testing both low-strength and high-strength materials without compromising measurement precision.

By covering the complete span from minimal to maximum force, the machine supports a broad variety of testing applications, including delicate material evaluations and full-load structural assessments. This flexibility allows that one machine to be used for different test setups, helping laboratories and production facilities maintain efficiency and accuracy when performing different test procedures. The consistent force application throughout the range also guarantees reliable data for research and quality control.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine provides force accuracy better than ±1% or ±0.5%, depending on the selected calibration class and model configuration. This means the machine can deliver and measure applied force with deviations no greater than 1%, and for high precision setups, within just 0.5% of the actual force applied. This high level of accuracy is a necessity for applications requiring reliable and repeatable measurement results.

Such precision makes certain that even under varying load conditions, the force readings remain consistent and within tightly controlled limits. This is particularly important for material testing where accurate data is required to meet safety, compliance, and engineering standards. Whether used for basic tension and compression testing or more advanced structural evaluations, the machine’s accurate force measurement helps maintain the quality and integrity of both the testing process and the materials being analyzed.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine features a displacement resolution of 0.007 micrometers (µm), which reflects its ability to detect extremely small movements during a test. This ultra-fine resolution allows the machine to capture detailed specimen deformation changes, even under minimal force or strain. It is particularly useful for testing materials that require highly sensitive displacement tracking, such as metals with fine elongation characteristics or components used in precision applications.

A displacement resolution of 0.007µm ensures that the machine can monitor and record even the smallest changes in length or position with great accuracy. This is essential for in-depth analyses of stress-strain behavior, modulus calculation, and other critical mechanical properties. The high resolution supports precise control over test execution and contributes to more reliable and detailed reporting.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine offers displacement accuracy better than ±1% or ±0.5%, depending on the model and calibration class selected. This means that the machine can measure changes in displacement with an extremely small deviation from the actual movement, providing high reliability in tracking how much a specimen stretches, compresses, or shifts during testing.

Accurate displacement measurement is critical when evaluating material properties such as elasticity, ductility, and deformation limits. With this level of precision, the machine guarantees that data on how a specimen behaves under stress is both detailed and dependable. Whether working with large structural components or fine mechanical parts, this accuracy helps make certain that results align with industry standards and application requirements. It is particularly valuable in research, design verification, and quality control where even minor measurement errors can lead to significant differences in analysis or product performance.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine features an extension range of 1% to 100% of full scale (FS). This means the machine is capable of accurately measuring specimen elongation starting at just 1% of the maximum extension capability up to the full capacity allowed by the system. This wide range of measurements allows for both small and large-scale deformations to be recorded accurately during mechanical testing.

Having an extension range that begins as low as 1% is necessary for assessing materials that exhibit minimal stretch, while the ability to reach 100% supports the testing of highly ductile or flexible specimens. This range provides the flexibility needed to conduct a full spectrum of mechanical tests, including yield point analysis, break point detection, and elongation under load.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine offers extension accuracy better than ±1% or ±0.5%, depending on the selected model and configuration. This means the system can measure the change in length of a test specimen during loading with only minimal deviation from the actual value, resulting in precise and trustworthy data throughout the entire testing process.

High extension accuracy is particularly important when analyzing mechanical properties such as elongation, yield strength, and fracture point. With this level of accuracy, users can confidently measure even small variations in specimen length under stress, which is essential for evaluating materials' performance and reliability in real-world applications. Whether testing involves fine elastic movements or large deformations, this accuracy guarantees that the data collected meets industry and testing standards, supporting dependable material assessment and validation.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine offers an extension resolution of 1/350,000 of the maximum extension value. This means that the system can detect extremely fine changes in specimen elongation during testing, with each measured unit being just a tiny fraction of the total extension range. Such a high resolution is necessary for capturing detailed and subtle deformation behaviors in materials under load.

This fine measurement capability allows the machine to record even the smallest movements in the specimen, supporting precise analysis of mechanical properties like elasticity, ductility, and tensile strength. High extension resolution ensures that every phase of deformation—from initial stretching to ultimate failure—is accurately documented. It also enhances the system’s ability to conduct sensitive and repeatable tests across different materials and test types.

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The upward speed of the actuator (piston) in the NG-SHM Class DP – Servo Hydraulic Testing Machine varies depending on the model. For the SHM605 model, the piston ascends at 190 mm/min. The SHM106 model follows with a slightly slower upward speed of 180 mm/min, while the SHM206 model, which has the highest load capacity, has an upward speed of 90 mm/min. These speeds are tailored to match each model’s structural requirements and force capabilities.

This variation allows the machine to balance performance and safety based on the size and strength of the components. Faster upward speeds support efficient test preparation and increase productivity in low- and mid-capacity models, while slower speeds in the high-capacity SHM206 provide controlled movement and protect both the specimen and machine components.

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The downward speed of the actuator (piston) in the NG-SHM Class DP – Servo Hydraulic Testing Machine is designed to optimize testing efficiency and safety based on each model’s capacity. In the SHM605 model, the piston descends at 240 mm/min. The SHM106 model offers the fastest downward movement at 290 mm/min, which supports quick test preparation and cycle transitions. The SHM206 model, built for the highest force capacity, has a downward speed of 100 mm/min, providing controlled and secure positioning for heavy-duty specimens.

These speeds are carefully calibrated to balance speed and control. Fast downward motion in lower-capacity models supports greater test throughput, while the slower rate in the high-capacity SHM206 protects the specimen and machine components during adjustment. The controlled descent of the piston also helps maintain accurate alignment and positioning prior to loading, contributes to test repeatability and operator safety in a range of applications.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine features a force loading speed ranging from 0.02% to 2% of full scale per second (FS/s). This means the machine can apply force at very slow or relatively fast rates, depending on test requirements. Such a large range allows users to conduct both gradual and rapid loading tests with precision, which allows it to be used for a broad spectrum of materials and testing requirements.

Slow loading speeds are essential for detecting subtle changes in material behavior, such as creep or long-term stress responses, while faster speeds are useful for routine strength assessments and high-throughput testing. This adjustable force application supports accurate simulation of real-world conditions, whether in quality control, research, or product development. Loading speed flexibility also helps maintain control over sensitive materials and ensures reliable test results across a broad range of test configurations.

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All three models of the NG-SHM Class DP – Servo Hydraulic Testing Machine—SHM605, SHM106, and SHM206—are constructed with a four-column frame structure. This 4-column design provides superior mechanical stability, maintaining accurate alignment during high-force testing. It also increases the machine’s structural integrity, allowing it to handle heavy loads and large specimens without compromising precision or safety.

The use of four columns results in even load distribution across the frame, which is necessary for maintaining consistent force application and avoiding frame deformation during operation. This design also minimizes vibrations and improves the reliability of test outcomes. Whether the machine is used for compression, tension, or bending tests, the robust four-column construction supports long-term durability and precise measurement performance, ideal for demanding industrial and laboratory environments.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine models are designed with varying distances between columns to accommodate different specimen sizes and testing capacities. In the SHM605 model, the distance between the columns is 60 cm by 35 cm. The SHM106 model provides a larger space of 66 cm by 40 cm. For the SHM206, which supports the highest test forces, the column spacing is 90 cm by 45 cm.

These increasing dimensions correspond to higher-capacity models' growing structural needs. Wider spacing allows for easier handling and testing of larger or bulkier specimens, as well as enhanced access and visibility during setup. The appropriate spacing between columns also supports better alignment and load distribution, which is essential for accurate and safe mechanical testing.

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The maximum tension space differs across the NG-SHM Class DP – Servo Hydraulic Testing Machine models to meet different testing requirements. The SHM605 model offers a maximum tension space of 58 cm, the SHM106 provides 68 cm, and the SHM206 model, which is designed for the largest and most force-intensive tests, includes a maximum tension space of 78 cm.

This tension space determines the vertical distance available for mounting specimens in tensile tests. Greater space allows the machine to test longer or more elongation-prone specimens without restricted movement. It also improves operator convenience and specimen positioning. The variation in tension space makes certain that each model is suited to its respective load capacity, providing flexibility in test setup and maintaining accurate, safe test performance for a broad selection of materials and shapes.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine provides varying maximum compression spaces within its three models to suit different specimen sizes and testing demands. The SHM605 model features a compression space of 45 cm, the SHM106 offers 55 cm, and the SHM206, built for large testing loads, provides 58 cm of compression space.

This space refers to the maximum vertical distance available between compression plates when fully open. A larger compressor space enables the testing of bulkier or longer samples under compression without modification or reconfiguration. It also allows for more flexible test setups, especially for materials that deform significantly during loading. These dimensions are carefully matched to the force capacity of each model, guaranteeing proper specimen accommodation, accurate load distribution, and safe, efficient operation in a broad spectrum of material compression tests.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine accommodates round specimens of various diameters, with the supported range depending on the model. The SHM605 model can handle round specimens with diameters ranging from 10 mm to 40 mm. The SHM106 expands this capacity to a range of 15 mm to 55 mm, while the SHM206 model supports the broadest range, from 15 mm up to 70 mm.

These ranges allow the machine to test an extensive variety of cylindrical materials, such as rods, bars, and structural samples. Accommodating larger diameters is necessary for evaluating thicker or more robust specimens, especially in high-capacity applications like construction or heavy manufacturing. The flexibility in the diameter range ensures that each model can be effectively used by different industries while maintaining secure gripping, precise alignment, and consistent test results for round-shaped specimens.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine supports testing of flat specimens in a broad range of thicknesses, which vary by model. The SHM605 model handles flat specimens with thicknesses between 2 mm and 30 mm. The SHM106 model increases this range from 2 mm to 40 mm. For SHM206, the range extends from 10 mm to 70 mm, which makes it suitable for materials that are thicker and more rigid.

These thickness capacities allow the machine to test a broad array of materials, from thin metal sheets to heavy industrial components. The varying ranges reflect the structural strength and clamping capacity of each model, making certain that specimens are held securely without slippage or damage. Materials come in an array of shapes and sizes in industries such as automotive, aerospace, and construction. It enables consistent, reliable testing performance regardless of specimen thickness.

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The actuator (piston) stroke length in the NG-SHM Class DP – Servo Hydraulic Testing Machine varies by model to meet different test requirements and specimen sizes. The SHM605 model provides a stroke of 56 cm, the SHM106 extends to 65 cm, and the SHM206 offers the longest stroke at 78 cm. This stroke length represents the maximum linear travel the piston can achieve during testing.

Longer strokes are particularly useful when working with high-elongation specimens or performing tests that require a broad range of motion, such as tensile tests involving significant stretching. The increased travel capacity also allows greater flexibility in positioning and handling large or long specimens. These stroke lengths are aligned with each model’s force capacity and application scope, providing smooth operation and precise control throughout the test process while maximizing efficiency in different industrial and laboratory environments.

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The frame dimensions of the NG-SHM Class DP – Servo Hydraulic Testing Machine may vary between models. The SHM605 model measures 88 cm (34.6 in) in length, 63 cm (24.8 in) in width, and 298 cm (117.3 in) in height. The SHM106 model measures 98 cm (38.6 in) in length, 72 cm (28.3 in) in width, and 359 cm (141.3 in) in height. The SHM206 model, designed for the highest capacity, measures 122 cm (48.0 in) in length, 88 cm (34.6 in) in width, and 410 cm (161.4 in) in height.

These dimensions reflect the physical footprint and vertical height of the testing frame, which are key considerations for laboratory layout and installation planning. Larger models, such as the SHM206, require more space due to their greater testing range and structural strength. Understanding these sizes ensures proper integration into testing environments and supports safe, efficient operation.

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The hydraulic power unit of the NG-SHM Class DP – Servo Hydraulic Testing Machine has compact and well-structured dimensions, measured 48 inches in length, 34 inches in width, and 44 inches in height. In metric units, this translates to 121 cm (length) x 86 cm (width) x 110 cm (height). These dimensions are consistent with all models and are designed to fit efficiently in standard laboratory or industrial spaces.

The power unit's size supports ease of installation and integration into different testing setups. Despite its compact footprint, the unit contains all essential components for efficient hydraulic control, including pumps, valves, cooling systems, and filters. The structure also includes accessibility features such as rear-opening double doors for easy maintenance. These dimensions balance functionality and space-saving, helping provide smooth operation and serviceability without excessive floor area.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine has a power consumption rating of 8 kilowatts (kW). This level of power usage reflects the energy required to operate the hydraulic system, actuator movements, control units, and auxiliary components under standard testing conditions. It is consistent with the different models in the series and delivers reliable performance while maintaining energy efficiency.

An 8 kW power requirement ensures the machine can sustain high-accuracy testing operations, including rapid actuator response and consistent hydraulic pressure, without overloading electrical systems. This power level also supports advanced cooling, servo control, and high-speed clamping. For planning purposes, this information is critical when preparing for the installation site, so that the electrical supply and infrastructure can support the system’s continuous operation. It offers a balanced combination of performance capacity and manageable energy use in both industrial and laboratory environments.

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The frame weight of the NG-SHM Class DP – Servo Hydraulic Testing Machine varies by model, reflecting the structural requirements needed to support different force capacities. The SHM605 model weighs approximately 3,500 kg or 7,716.19 lbs. The SHM106 model has a frame weight of around 6,500 kg or 14,330.05 lbs. The heaviest, SHM206, weighs about 9,000 kg or 19,841.60 lbs.

These substantial weights assist in maintaining frame mechanical stability and rigidity during high-force testing. Heavy frames reduce vibration, improve alignment accuracy, and allow the machine to safely absorb and distribute stress during compression or tensile loading. The increased mass of high-capacity models like the SHM206 also accommodates larger specimens and greater force applications, providing a robust platform that supports safe, repeatable testing in demanding environments. Proper floor planning and load-bearing capacity must be considered when installing these machines.

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The NG-SHM Class DP – Servo Hydraulic Testing Machine is suitable for a large number of users in many industries and research fields. It is ideal for material testing laboratories, quality control departments, research institutions, and manufacturing facilities that require precise and reliable mechanical materials testing. Engineers, technicians, and researchers working in sectors such as construction, aerospace, automotive, energy, and metallurgy will find this system especially beneficial for evaluating structural components like metals, fasteners, chains, welds, rebar, and castings.

The system’s user-friendly interface, automatic pressure adjustment, and high accuracy make it accessible to both experienced professionals and trained technical staff. Its robust structure and wide testing capacity also support routine and advanced testing tasks. By delivering accurate, repeatable results and offering versatile testing capabilities, the machine helps users meet regulatory standards, improve product quality, support innovation, and ensure material performance in real-world applications. Whether for certification, design validation, or production control, this system provides critical data to support informed engineering decisions.

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