Pendulum Rebound Resilience Tester

Trust
  • Pendulum Rebound Resilience Tester
  • Pendulum Rebound Resilience Tester
  • Pendulum Rebound Resilience Tester
  • Pendulum Rebound Resilience Tester
  • Pendulum Rebound Resilience Tester

Standards

German Manufactured
German Manufactured
Highest Accuracy and Repeatability
Highest Accuracy and Repeatability
Industry Certified
Industry
Certified
Complete Calibration Solution
Complete Calibration Solution
Free Proof of Concept
Free Proof of Concept
Custom Turnkey Solution Availability
Custom Turnkey Solution

Description

NextGen’s Pendulum Rebound Resilience Tester series offer both manual and fully-automatic options with digital display terminal. These rebound testers will determine the dynamic behavior of various materials and supply the differentiation of these materials’ qualities. It will also identify material changes after aging and fatigue. The Pendulum Rebound Tester is out there with an adjustable heater for sample temperatures up to 212 °F (100 °C). It can simulate the effect of heat on the elasticity of samples with different formulations.

The objective of tests on elastomers and foams is the straightforward and fast measurement of material elasticity. One material that is up to 100% elastic stores supplied energy and releases it at the moment the force is no longer applied. In contrast, material that is up to 100% plastic absorbs supplied energy completely. These characteristics are used to measure rebound resilience.

These systems are developed for the determination of the resilience elasticity of elastomers, soft elastic foams and similar materials during shock loading calculation of the median value in accordance with DIN 53512, ASTM D 1054, and ISO 4662 standards. Read more in our newest mega blog!

The instrument running a rebound test on an elastomer specimen.

A closer look at the pendulum, the anvil and the digital terminal.

The test is defined by the pendulum: how long it is, the angle it falls through, and the speed at which it strikes the specimen.

Pendulum Length7.87 in (200 mm)
Angle Of Incidence90°
Impact Velocity6.6 ft/s (2 m/s)
Resolution0.1 %
Specimen Diameter1.14-2.09 in (29-53 mm)
Specimen TemperatureUp to 212 °F (100 °C)

Features

The instrument is built around a single geared motor and a frictionless encoder, which is what makes it suitable for continuous quality-assurance work rather than occasional checks.

What it measures
Determination of the dynamic behaviour of different materials, differentiation of different material qualities, and identification of material changes after dynamic fatigue tests and after aging. Quality assurance during the production process and at the finished product.
Mechanism
Extremely low-maintenance, with a fully automatic sequence and a geared motor as sole actuator. The wear-free mechanism is ideal for continuous operation, and the pendulum encoder is frictionless.
Temperature control
Selectable temperature ranges from 50 °F to a maximum of 212 °F (10 °C to max. 100 °C) on the contact surface of the specimen. A second specimen can be preconditioned at the same time.
Specimens
Diameter of specimens 1.14-2.09 in (29-53 mm), thickness of specimens 0.47 in (12 mm).
Electronics
Independent electronic unit with LCD display, an integrated routine that enables rapid error analysis, and a PC connection via the integrated RS232 C interface for output and processing of test results.

Technical Specifications

The instrument ships as a main unit with a separate electronic unit, and the heating module is weighed separately because it is an accessory.

Specification Pendulum Rebound Resilience Tester
Power supply, input 100-240 VAC; 50 / 60 Hz 1P
Resolution 0.1 %
Measuring ranges Rubber resilience
Data output V24 RS 232 - 9600 baud, 1 start bit, 8 data bits, 1 stop bit
Length of pendulum 7.87 in (200 mm)
Angle of incidence 90°
Impact velocity 6.6 ft/s (2 m/s)
Adjustment for specimen thickness 0-2.36 in (0-60 mm)
Scale value 0.04 in (1 mm)
Dimensions, main instrument 7.87 x 9.84 x 22.44 in (200 x 250 x 570 mm)
Dimensions, electronic unit 7.87 x 6.73 x 3.54 in (200 x 171 x 90 mm)
Weight, main instrument 73 lbs (33 kg)
Weight, electronic unit 4.4 lbs (2 kg)
Weight, heating module 6.6 lbs (3 kg)

Accessories

The heater, the clamping device and the software are ordered separately, depending on the material and on how the results are reported.

Calibration
Dakks calibration certification from the manufacturer.
Anvil plate
The surface the specimen is backed by during the strike.
Heating module
Brings the contact surface of the specimen up to temperature, and preconditions a second specimen at the same time.
200N clamping device
Holds the specimen against the anvil.
HardTest software
Intuitive software for collecting and processing the results over the RS232 interface.

System Dimensions

The drawing gives the footprint and height of the main instrument alongside the electronic unit.

Pendulum Rebound Resilience Tester dimensions

System dimensions of the main instrument and the electronic unit.


Have Questions or Need to Confirm a Detail?

If you are deciding between the manual and the fully automatic version, or you need specimens conditioned at temperature before the strike, send us a quick request online. Tell us the elastomer or foam you test and the standard you report to, and we will confirm the configuration, the heating module and the accessories you need.

For Laboratories

Need Additional Quality Control Equipment to Build Your Laboratory?

Rebound resilience testing is only one part of a complete quality control laboratory. NextGen can help you equip your entire lab with universal testing machines, impact and falling weight testers, melt flow indexers, HDT and Vicat systems, hardness and durometer systems, environmental chambers, and other supporting solutions, all coordinated as one complete project.

  • One partner to equip your complete laboratory
  • Installation, training, calibration
  • Support for the life of the equipment

FAQs

The Pendulum Rebound Tester utilizes a pendulum specifically designed to measure materials' rebound resilience. The pendulum's length is a vital specification that directly influences test results. It is meticulously calibrated to ensure consistent and reliable performance during testing.

This pendulum's construction and dimensions are integral to its function. The length is chosen to provide an optimal balance between sensitivity to material responses and stability during swings. Such precision in design allows for accurate impact force application on test specimens. This is a crucial aspect in determining the resilience and elasticity of materials like elastomers and foams.

Moreover, the pendulum's specifications are in line with material testing standards in various industries. Its design ensures that the swing and impact are consistent for each test, contributing to test repeatability and reliability. This consistency is essential for quality control and research purposes, where accurate material characterization is critical.

Click here to learn more about the product or here to receive a personalized quote.

The Pendulum Rebound Tester's design incorporates a 90° incidence angle. This particular angle is instrumental in ensuring resilience testing accuracy. A 90° angle of incidence means that the pendulum strikes the test material perpendicularly, which is essential for uniform and consistent force application during each test. This perpendicular impact is critical for accurately assessing rebound resilience.

The consistent 90° angle of incidence ensures that the impact force is directly and evenly applied to the material. This provides a reliable basis for measuring how much energy is absorbed and released by the material. This level of precision in the testing setup is crucial, especially when evaluating materials where resilience and elasticity are vital properties.

In quality control and material research, the ability to deliver a consistent and controlled impact at a 90° angle is invaluable. It allows for the accurate comparison of different materials under the same testing conditions, enhancing comparative analysis reliability.

Click here to learn more about the product or here to receive a personalized quote.

The Pendulum Rebound Tester measures the rebound resilience of materials with varying degrees of elasticity and plasticity. This testing is crucial because materials behave differently under stress based on their composition. A material that is up to 100% elastic, like certain elastomers, will store energy during testing. It will release it when the force is removed. This will demonstrate a high level of resilience. This behavior is indicative of materials that can withstand repetitive stress without permanent deformation.

In contrast, materials with a higher degree of plasticity, up to 100% plastic, absorb energy during testing without rebounding. This indicates a lack of elasticity. Such materials are more likely to undergo permanent deformation when subjected to stress.

By measuring these characteristics, the Pendulum Rebound Tester helps determine materials' suitability for different applications. For instance, highly elastic materials are ideal for products requiring flexibility and durability under stress, such as automotive tires or seals. On the other hand, materials with higher plasticity might be better suited to applications where deformation under load is desirable. This precise measurement of rebound resilience is essential for industries that require materials to maintain their integrity and performance over time under various stress conditions.

Click here to learn more about the product or here to receive a personalized quote.

Yes, the Pendulum Rebound Resilience Tester aligns with the ASTM D1054 Standard. This standard is specifically designed for testing elastomeric materials' resilience, focusing on their ability to withstand impact and rebound. The tester’s design and functionality are tailored to meet ASTM D1054 criteria, providing an accurate and consistent assessment of material resilience. This compliance is particularly crucial for industries dealing with rubber and other elastomeric materials, as it assures that the testing equipment adheres to recognized industry standards.

Compliance with ASTM D1054 signifies the tester's capacity to provide dependable resilience data essential to quality control and product development. Its precision in measuring the rebound elasticity of materials under specific conditions makes it a valuable tool in sectors such as automotive, aerospace, and consumer goods where elastomer quality is pivotal. By meeting ASTM D1054 standards, the Pendulum Rebound Resilience Tester becomes a key instrument for manufacturers and researchers focused on developing and testing materials that require high resilience and durability.

Click here to learn more about the product or here to receive a personalized quote.

The Pendulum Rebound Tester is designed with a versatile power supply input, accommodating a range of 100 to 240 Volts Alternating Current (VAC) and compatible with both 50 and 60 Hertz (Hz) frequencies. This feature makes the tester adaptable to various electrical power standards worldwide, enhancing its usability across different regions and settings.

The ability to operate on a broad voltage range (100 – 240 VAC) ensures that the tester can be used in countries with different voltage standards without additional voltage converters or adapters. Global compatibility is particularly beneficial for multinational companies and research institutions that operate in multiple countries or export internationally.

Furthermore, the tester's compatibility with both 50 and 60 Hz frequencies adds to its flexibility, as electrical systems in different countries may operate on either of these frequencies. This dual frequency compatibility ensures tester performance remains stable and reliable, regardless of local power grid specifications.

Click here to learn more about the product or here to receive a personalized quote.

The Pendulum Rebound Tester differentiates between various materials' qualities by assessing their response to stress and impact. This differentiation is based on measuring the resilience and elasticity of materials when subjected to controlled dynamic testing. Each material, depending on its composition and properties, reacts differently to the impact and stress applied during the test.

Materials with higher elasticity will demonstrate an increased ability to absorb and release energy, indicated by higher rebound resilience. This characteristic is typical of materials that can withstand repetitive stress without permanent deformation. Conversely, materials with lower elasticity or greater plasticity will absorb more energy and exhibit less rebound, indicating a different set of qualities.

This ability to distinguish between different material qualities is essential for a wide range of applications. For example, in the automotive industry, materials with high resilience might be preferred for parts that undergo frequent stress. In contrast, materials with different qualities might be chosen for other applications. The Pendulum Rebound Tester's precise measurements allow for an accurate assessment of material qualities, aiding material selection, quality control, and product development across various industries.

Click here to learn more about the product or here to receive a personalized quote.

Yes, the Pendulum Rebound Resilience Tester is designed to comply with ISO 4662, a standard that specifies methods for determining rubber rebound resilience. This standard applies to rubber materials with a hardness between 30 IRHD and 85 IRHD. This includes the pendulum method, which plays a direct role in the Pendulum Rebound Resilience Tester's functionality since it is directly related to the pendulum method.

The tester’s capability to accurately measure rubber materials' rebound resilience makes it an ideal tool for adhering to ISO 4662's requirements. This compliance is crucial in industries where rubber products perform and last, such as automotive, aerospace, and manufacturing. Utilizing a tester that aligns with ISO 4662 guarantees that rubber materials maintain their quality and performance over time. This provides confidence in product reliability and adherence to international standards.

Click here to learn more about the product or here to receive a personalized quote.

The Pendulum Rebound Tester is equipped with a frictionless pendulum encoder, a critical component that significantly improves performance and accuracy. The frictionless encoder means minimal resistance or interference during pendulum movement. This results in more precise and consistent measurements, as the pendulum can swing freely without drag which might affect the test results.

The frictionless pendulum encoder is particularly beneficial for accurately measuring materials' rebound resilience. Since pendulum movement is a key factor in determining how a material responds to stress and impact, friction could skew the results. By eliminating this variable, the frictionless encoder ensures that the data gathered is a true representation of the material's properties.

This type of encoder also benefits the tester's longevity. Frictionless operation means less wear on moving parts, contributing to the device's durability and maintenance-free aspect. For industries frictionless pendulum encoder in the Pendulum Rebound Tester is an invaluable feature for maintaining consistent quality and performance standards for their products.

Click here to learn more about the product or here to receive a personalized quote.

The Pendulum Rebound Tester boasts a resolution of 0.1%, a specification that significantly enhances its testing accuracy. This high resolution indicates the tester's ability to detect and display very small changes in the rebound resilience of the materials being tested. A resolution of 0.1% means that the tester can measure and report changes in material properties with fine detail and precision.

This high degree of resolution is particularly significant in applications where even minor variations in material performance can have significant implications. For example, in industries where material consistency and quality are critical the ability to precisely measure and analyze material properties ensures that only materials meeting strict standards are used.

The 0.1% resolution contributes to the reliability of the test results, providing confidence in the accuracy of the tester's data. This level of precision allows for a more detailed understanding of the material's behavior, aiding in quality control, research, and development processes. It ensures that any changes in material properties, whether due to manufacturing processes or environmental factors, are accurately captured and assessed.

Click here to learn more about the product or here to receive a personalized quote.

The Pendulum Rebound Tester features an integrated RS232 C interface, which facilitates direct connection to a PC. This feature is crucial for efficient test results output and processing. The RS232 C interface allows for the seamless transfer of data from the tester to a computer system, where the results can be further analyzed, processed, and stored.

The ability to connect the tester to a PC offers several benefits. Firstly, it enables easy and efficient test data management. Users can quickly download results for analysis, create reports, and maintain records of tests conducted. This data management is vital for maintaining quality control logs, conducting research, and complying with documentation requirements in various industries.

Secondly, the PC connection allows for more advanced data analysis. Users can use software tools to perform in-depth analyses of test results, compare data sets, and draw meaningful conclusions about the material's properties and performance. This level of analysis is essential for developing new materials, improving existing products, and ensuring that materials meet the necessary standards and specifications.

Click here to learn more about the product or here to receive a personalized quote.

The Pendulum Rebound Tester accommodates specimens with specific dimensions. It can handle specimens with a diameter ranging from 29 to 53 millimeters (mm) and a thickness of 12 mm. These dimensions are crucial as they define the range of specimen sizes that can be tested with the device.

The ability to test specimens with diameters between 29 and 53 mm provides versatility, allowing for the analysis of a wide variety of materials and products. This range is suitable for many applications, ensuring that the tester can be used for diverse testing requirements across different industries. The specified 12 mm thickness results in uniform and manageable specimens.

These size specifications guarantee that the materials are appropriately sized for the testing mechanism, allowing for accurate measurement of resilience and other properties. The specimen size makes the Pendulum Rebound Tester a flexible tool. It is capable of accommodating different types of materials and providing reliable data for material analysis and quality control.

Click here to learn more about the product or here to receive a personalized quote.

The Pendulum Rebound Tester is equipped with a wear-free mechanism, an essential feature that makes it ideally suited to continuous operation. This wear-free design means that the tester has fewer moving parts susceptible to wear and tear, which is a common issue with mechanical devices with repetitive motion. As a result, the tester can maintain its accuracy and functionality over long periods of use without frequent maintenance or part replacements.

The benefit of this design is particularly significant in high-throughput testing environments, where equipment is expected to perform consistently over extended periods. The wear-free mechanism ensures that the tester can handle a continuous stream of tests without downtime or performance degradation. This reliability is crucial for industries that require ongoing quality control and material testing.

Additionally, a wear-free mechanism contributes to the tester's overall longevity, making it a cost-effective investment in the long run. It reduces maintenance operational costs and minimizes the potential for testing interruptions due to equipment failure. This feature, combined with its continuous operation capability, makes the Pendulum Rebound Tester a valuable asset in any setting that demands reliable and efficient material testing.

Click here to learn more about the product or here to receive a personalized quote.

The Pendulum Rebound Tester plays a crucial role in quality assurance both during the production process and in the evaluation of finished products. During production, this tester can be used to continuously monitor materials' resilience and elasticity as they are processed. This ongoing assessment helps make sure that the materials maintain consistent quality throughout the manufacturing phase, meeting the desired standards and specifications.

By identifying any deviations in material properties early in the production process, the tester allows for timely adjustments, preventing the progression of substandard materials through the production line. This proactive approach to quality control helps minimize the costs associated with defective products.

In the assessment of finished products, the Pendulum Rebound Tester verifies that the final products have retained their intended properties and are fit for their specific applications. This is especially true for products where material resilience and elasticity are critical to performance and safety.

Click here to learn more about the product or here to receive a personalized quote.

The main instrument of the Pendulum Rebound Tester weighs 73 pounds (lbs), equivalent to approximately 33 kilograms (kg). This weight reflects the tester's robust construction, designed to ensure stability and durability during testing.

The weight of 73 lbs (33 kg) is significant as it contributes to the tester's overall stability. A stable testing platform is essential for accurate and reliable measurements, especially in tests involving dynamic forces, such as measuring rebound resilience. The substantial weight minimizes vibrations and movement that could otherwise affect the test results' precision.

Despite its weight, the tester is designed for practicality in a laboratory or industrial setting. Weight is a consideration for installation and placement, ensuring the tester is located in a suitable area where it can be operated safely and effectively. This weight specification is a key aspect of the tester's design. It balances the need for a sturdy and reliable testing apparatus with practical considerations for everyday use.

Click here to learn more about the product or here to receive a personalized quote.

The Pendulum Rebound Tester electronic unit weighs 4.4 pounds (lbs), equivalent to approximately 2 kilograms (kg). This relatively lightweight design enhances unit portability and handling. The lighter weight of the electronic unit, compared to the main instrument, allows for greater flexibility in its placement and setup within a testing environment.

This difference in weight between the main instrument and the electronic unit is practical for operational purposes. While the main instrument's heavier weight ensures stability during testing, the electronic unit's lighter weight allows it to be easily adjusted or relocated as needed. This can be particularly beneficial in laboratories or industrial settings where space optimization and reconfiguration are particularly crucial.

The 4.4 lbs (2 kg) weight of the electronic unit reflects a design that considers both functionality and user convenience. This ensures that the unit is robust enough to house the necessary electronic components while remaining user-friendly and adaptable to various testing scenarios.

Click here to learn more about the product or here to receive a personalized quote.

The Pendulum Rebound Resilience Tester detects and analyzes changes in materials caused by aging and fatigue. This functionality is crucial for assessing the long-term durability and stability of various materials. The tester measures materials' resilience, which is a key indicator of their condition and quality. Over time and with repeated use, materials can change their physical properties, leading to reduced resilience.

By evaluating the resilience of materials before and after aging and fatigue, the tester provides valuable insights into how they deteriorate or change. This information is essential in fields such as automotive, aerospace, and construction, where material longevity and consistency are vital for safety and performance.

The ability to track material changes over time makes the Pendulum Rebound Resilience Tester a powerful tool for quality assurance, research, and development. It helps predict material lifespan, enhancing product reliability, and informing more resilient materials.

Click here to learn more about the product or here to receive a personalized quote.

The Pendulum Rebound Tester features a data output specification of V24 RS 232 - 9600 baud, including 1 start bit, 8 data bits, and 1 stop bit. This specification outlines the format and protocol for data transmission from the tester to external devices, such as computers, for further analysis and record-keeping.

The V24 RS 232 is a standard communication interface, commonly used for serial data exchange between devices. The 9600 baud rate indicates the speed of data transfer, with 9600 bits per second being a standard rate that balances speed with reliability in data transmission.

Serial communication uses 1 start bit, 8 data bits, and 1 stop bit. The start bit signals the beginning of data transmission, the 8 data bits carry the actual data, and the stop bit signifies the end of the data packet. This format ensures clear and structured data flow, reducing error risk during transmission.

Click here to learn more about the product or here to receive a personalized quote.

The Pendulum Rebound Tester features an Independent Electronic Unit equipped with an LCD, a key component in the operation and usability of the device. This unit serves as the control center for the tester, managing testing parameters and processes. The LCD provides a user-friendly interface, presenting clear and easily readable data and controls. This enhances the user's ability to monitor testing procedures, adjust settings, and interpret results accurately and efficiently.

The electronic unit's independence adds a layer of reliability to the tester. It operates separately from the mechanical components, reducing the risk of interference or errors caused by mechanical malfunctions. This separation ensures that electronic processing and display of results remain consistent and accurate, even in the event of physical wear or issues.

The inclusion of an LCD allows for real-time monitoring of tests, giving immediate feedback on the material's resilience and other measured properties. It also facilitates easy navigation through different testing modes and settings, making the testing process more streamlined and less prone to user error.

Click here to learn more about the product or here to receive a personalized quote.

The Pendulum Rebound Tester boasts an extremely low-maintenance design, a notable feature that significantly enhances its usability and longevity in various testing environments. This low maintenance requirement is largely due to its fully automatic sequence, which minimizes the need for manual intervention and reduces the wear and tear commonly associated with repeated manual operations.

Central to the tester's automated functionality is its geared motor, which serves as the sole actuator. The use of a single geared motor simplifies the mechanical complexity of the device, leading to fewer parts that can wear out or require replacement. This design choice ensures consistent and reliable operation and reduces maintenance needs.

The tester's automatic sequence offers a streamlined and efficient testing process. It allows continuous operation without constant supervision or manual adjustments, making it ideal for high-throughput testing scenarios. This feature is particularly advantageous in industrial settings where time efficiency and accuracy are vital.

Click here to learn more about the product or here to receive a personalized quote.

The Pendulum Rebound Tester features an integrated routine specifically designed for rapid error analysis. This function is a critical aspect of the tester's design, enhancing its reliability and efficiency. The integrated routine automatically detects and diagnoses errors during testing. This rapid error analysis capability ensures that any issues are promptly identified and addressed, minimizing downtime and potential inaccuracies in test results.

The benefit of having an integrated routine for error analysis is significant, especially in environments where continuous operation and accuracy are crucial. It allows immediate troubleshooting, reducing manual diagnostic time. This feature is particularly valuable in high-throughput testing scenarios, where delays or errors could significantly impact productivity and workflow.

Additionally, the ability to quickly analyze and rectify errors contributes to the overall integrity and reliability of the testing process. It ensures that the data collected is accurate and reflective of the material's true properties. This is essential for quality control and material research.

Click here to learn more about the product or here to receive a personalized quote.

The Pendulum Rebound Tester is equipped with an adjustable heater, a feature that significantly enhances its testing capabilities. This heater allows sample temperatures up to 100 degrees Celsius (°C), providing testing environments. The ability to alter temperature is crucial for evaluating how materials respond to different thermal conditions.

In many applications, materials' properties can vary significantly with temperature changes. For instance, materials may become more flexible or more rigid depending on temperature. By testing materials at various temperatures, the Pendulum Rebound Tester can assess their resilience and other properties under conditions that mimic real-world scenarios.

It was designed to allow manufacturers and researchers to understand the effects of temperature fluctuations on the performance of materials. This work aims to contribute to the development of products that maintain integrity and functionality even under extreme conditions of temperature.

Click here to learn more about the product or here to receive a personalized quote.

Yes, the Pendulum Rebound Resilience Tester by NextGen is designed by the DIN 53512 standard. This standard is crucial in material testing, especially for determining the resilience and elasticity of elastomers and soft elastic foams under shock loading. The tester’s capability to accurately measure the dynamic behavior of materials aligns with DIN 53512 specifications, ensuring precise and reliable results.

This tester's compliance with DIN 53512 is significant for industries and research institutions focusing on material quality and performance. It provides a dependable method for assessing the elasticity and durability of materials. This is essential in applications where material resilience under shock and stress is a critical factor. The tester's alignment with such an established standard highlights its suitability for rigorous testing environments. It assures users of its efficacy and reliability in material testing and analysis.

Click here to learn more about the product or here to receive a personalized quote.

The Pendulum Rebound Tester is designed to deliver an impact velocity of 2 meters per second (m/s) during testing. This specific velocity is crucial for accurately assessing materials' resilience and elasticity. An impact velocity of 2 m/s ensures that the pendulum strikes the test material with sufficient force to effectively measure its rebound properties.

This velocity is carefully calibrated to provide a balance between delivering a significant impact on the material. It ensures that the material is not damaged or altered in a way that affects the test integrity. The chosen speed of 2 m/s is optimal for simulating real-world conditions under which many materials, especially elastomers and foams, are expected to perform.

The impact velocity directly influences the kinetic energy transferred to the material during testing. This energy transfer is a key component in evaluating a material's ability to absorb and release energy – a fundamental aspect of resilience. The precise control of the impact velocity at 2 m/s is, therefore, essential for ensuring the accuracy and reliability of the test results.

Click here to learn more about the product or here to receive a personalized quote.

The Pendulum Rebound Tester heating module weighs 6.6 pounds (lbs), equivalent to about 3 kilograms (kg). This weight reflects the module's design, which incorporates the necessary components to effectively heat test specimens to the desired temperature.

The 6.6 lbs (3 kg) weight suggests that the heating module is sufficiently robust to maintain consistent temperatures, yet not so heavy as to impede its integration with the main instrument. This balance is crucial in ensuring that the heating module can be managed easily while still providing reliable and effective heating for a variety of material tests.

In material testing, the heating module's role is significant, as temperature can greatly affect materials' properties, particularly their elasticity and resilience. The weight and design of the heating module in the Pendulum Rebound Tester are crucial key factors in its ability to provide precise temperature control.

Click here to learn more about the product or here to receive a personalized quote.

The objective is a straightforward and fast measurement of elasticity. The specimen is struck by the pendulum, and the share of the impact energy it gives back as rebound is the rebound resilience, read as a percentage.

A material that is fully elastic stores the supplied energy and releases it the moment the force is removed, while a fully plastic one absorbs it completely. Real elastomers and foams sit between those limits, and where a compound sits tells you how it behaves under shock loading.

Because each test is quick, the method suits production checks as well as development work, for example comparing formulations or checking that a batch behaves like the one before it.

The instrument is built for elastomers, soft elastic foams and similar materials. For foams in particular, you can compare it with the other instruments in our plastic and foam rebound testing range.

The scale value is 1 mm (0.04 in). It belongs to the instrument's mechanical setting and is listed beside the 0 to 60 mm adjustment for specimen thickness.

It should not be confused with the resolution of the result. Rebound resilience is a percentage calculated from the pendulum's rebound and shown by the electronic unit, so the 1 mm graduation does not limit how finely the material is measured.

In practice the scale is used when the instrument is prepared for a specimen, so that the pendulum meets the specimen surface in the intended position. A 1 mm graduation is fine enough for that job.

If you test specimens of several thicknesses and want a set-up routine your operators can repeat, our team can take them through it during installation and training.

The electronic unit of the Pendulum Rebound Tester has dimensions of 7.87 inches in length, 6.73 inches in width, and 3.54 inches in height, translating to 200 x 171 x 90 millimeters (mm). These dimensions indicate the size of the electronic unit, which is a separate component from the main instrument of the tester.

The electronic unit's compact size, as specified, is designed for convenience and ease of use. This allows it to be placed within a testing setup without occupying excessive space. This is particularly beneficial in laboratory or industrial environments where space conservation is critical.

Despite its relatively small size, this electronic unit is a critical part of the tester, housing the controls and data processing components. Its dimensions ensure that it can be easily integrated with the main instrument while still providing an accessible and user-friendly interface for operating the tester.

Click here to learn more about the product or here to receive a personalized quote.

With the heating module, the contact surface of the specimen can be brought to a selectable temperature from 10 °C up to a maximum of 100 °C (50 °F to 212 °F).

The module also preconditions a second specimen at the same time. While one specimen is being tested, the next is already coming up to temperature, which removes most of the waiting in a series run at one temperature.

The heating module is an accessory and is ordered separately, chosen with the material you test and the way you report results. It is listed with its own weight in the specification table because it is an add-on, not part of the base instrument.

Tell us the temperatures your specification calls for when you order, and we will confirm the heating module as part of the configuration.

The tester is developed for determining the rebound resilience of elastomers, soft elastic foams and similar materials under shock loading, in accordance with DIN 53512, ASTM D1054 and ISO 4662.

All three are rebound methods built around a pendulum. The test is defined by the pendulum, its length, the angle it falls through and the speed at which it strikes, and on this instrument those are fixed by design, so every test runs under the same conditions.

Each standard sets its own requirements for specimens, conditioning and reporting. Tell us which one your customers specify and we will confirm the set-up, including the heating module and clamping device where they apply.

Results from different rebound principles are not interchangeable, so report the standard alongside every value. For laboratories that need a second principle, our vertical rebound resilience tester is the companion instrument.

The instrument measures rubber resilience: the rebound expressed as a percentage of the energy the pendulum supplies. The scale runs from 0 % for a fully plastic material, which absorbs everything, towards 100 % for a fully elastic one, which returns everything.

Where a given compound falls on that scale depends on its formulation and hardness, and also on temperature and conditioning, so a result is always reported with the test temperature and the standard used.

Soft elastic foams and similar materials are measured on the same percentage scale, so solid compounds and foams from one product line can be assessed with the same instrument and the same procedure.

Changes in a material show up on the same scale as well. Comparing a compound before and after aging, or before and after dynamic fatigue, shows how much of its elasticity it has kept.

The series comes in a manual and a fully automatic version, and both have the digital display terminal.

The fully automatic version runs the test sequence with a geared motor as the only actuator, which suits continuous quality-assurance work in production. The manual version leaves more of the sequence to the operator and suits development work and occasional checks.

The choice usually comes down to test volume and how much of the sequence you want the operator to handle. Tell us roughly how many tests you run per shift and we will recommend the version that fits.

If you are deciding between the two, or need specimens conditioned at temperature before the strike, send us a quick request with the elastomer or foam you test and the standard you report to.

The main instrument of the Pendulum Rebound Tester has dimensions of 7.87 inches in length, 9.84 inches in width, and 22.44 inches in height. This is equivalent to 200 x 250 x 570 millimeters (mm). These dimensions define the physical size of the tester, which is a crucial consideration for space planning and installation.

The compact design, as indicated by these dimensions, allows the tester to be accommodated in various laboratory and industrial settings without excessive space. Despite its relatively modest size, the tester is designed to perform complex material testing tasks effectively.

The height of 22.44 inches (570 mm) ensures that the pendulum has enough room to swing freely without obstruction, which is crucial for accurate testing. The length and width of 7.87 inches (200 mm) and 9.84 inches (250 mm) respectively, provide a stable base for the instrument, ensuring its steady operation during testing operations.

Click here to learn more about the product or here to receive a personalized quote.

The specimen is held against the anvil and struck by a pendulum released through a defined angle. The pendulum rebounds, and the share of its fall it recovers on the rebound gives the rebound resilience as a percentage.

The electronic unit evaluates the rebound and calculates the result, so the reading does not depend on an operator watching a scale. A series of strikes is run and the median value is reported, in line with DIN 53512, ASTM D1054 and ISO 4662.

That single figure is what lets different material qualities be told apart. A compound that returns more of the impact energy is more elastic, and one that returns less dissipates more of it as heat.

Because the strike does not break the specimen, the same compound can be tested before and after aging in our aging oven or after dynamic fatigue, which shows how its dynamic behaviour has changed.

The heating module, the clamping device and the software are ordered separately, chosen with the material you test and the way you report results.

The anvil plate is the surface the specimen is backed by during the strike, and the 200 N clamping device holds the specimen against it. The heating module brings the contact surface of the specimen up to the test temperature.

HardTest software collects and processes the results over the RS232 interface, so values go straight to a PC instead of being copied from the display by hand.

Calibration is available as a DAkkS calibration certificate issued by the manufacturer, which gives the instrument documented traceability when an auditor or customer asks how its readings are verified.

The instrument adjusts for specimen thickness across 0 to 60 mm (0 to 2.36 in).

That is well beyond the thickness of the standard specimen, so thicker test pieces and foam samples can also be set up correctly. The adjustment is about positioning: the pendulum has to meet the specimen surface at the intended point of its swing.

Setting the thickness correctly matters because a specimen that sits too high or too low changes the impact conditions, and with them the rebound value. Getting it right is part of the routine set-up before each series.

Whether a non-standard thickness gives results comparable with the standard specimen is a question for your test specification. ISO 4662, for example, sets out the specimen requirements for rubber.

It is possible to assess the dynamic behavior of various materials using the Pendulum Rebound Resilience Testers, which provide insight into their properties in terms of their dynamic behavior. Using these tests, you can determine how different materials will react to impact and stress, specifically how well they will rebound after impact. This capability is essential for understanding materials' elasticity and energy absorption properties, which are critical factors in many industrial applications.

By assessing materials' dynamic behavior, testers can identify key characteristics such as stiffness, flexibility, and durability. This information is invaluable in applications where material performance under dynamic conditions is a primary concern, such as automotive, aerospace, and sports equipment manufacturing. Differentiating material qualities allows for a more informed selection of materials for specific purposes. This guarantees that the chosen materials will perform as expected in their intended applications.

Click here to learn more about the product or here to receive a personalized quote.

Yes. The adjustable heater brings specimens up to 100 °C (212 °F), so rebound can be measured at the temperature a part sees in service and not only at room temperature.

That matters because elasticity depends on temperature, and compounds with different formulations respond to heat differently. Two materials with similar rebound at room temperature can separate clearly once they are warm, which a single room-temperature test would miss.

Running the same compound at several temperatures gives a simple picture of how its elasticity changes with heat. That is useful when choosing between formulations or checking a reformulated batch against the one it replaces.

For conditioning beyond the specimen heater, such as climate cycles before the test, our environmental chambers are the companion equipment.

Related Products

GenRebound – Vertical Rebound Resilience Tester

GenRebound – Vertical Rebound Resilience Tester

GenRebound is a vertical rebound resilience tester for measuring the elasticity and rebound behavior of hard rubber compounds and similar materials. Based on the free-fall hammer method, it records rebound height after controlled impacts and calculates results from repeated measurements. ASTM D2632 and ISO 10012 alignment, horizontal setup adjustment, electronic readout, and repeatable drop positioning make it useful for shock and vibration compound development.

Read more
Ball Rebound Tester

Ball Rebound Tester

The Ball Rebound Tester measures rebound resilience in foam, polyurethane, rubber, and similar materials. Designed for DIN EN ISO 8307 and ASTM D3574 testing, it drops a 16 mm magnetic ball from a controlled 500 mm height and calculates rebound performance through the electronic console. This makes it a practical solution for quality control, material comparison, and repeatable resilience evaluation.

Read more