Metal Testing Equipment
Servo-hydraulic static universal testing machines use a closed-loop hydraulic system to apply and control load during material and component testing. These systems are typically used when testing requires higher force levels than those commonly handled by electromechanical universal testing machines.
Servo-hydraulic UTMs are applied in static test methods such as tensile, compression, and flexural testing, particularly for metals and other high-strength materials. Hydraulic actuation allows stable load control under high forces and supports the use of hydraulic grips and large-capacity fixtures.
NextGen servo-hydraulic systems can be configured with different frame capacities, hydraulic power units, and control components. The machines are compatible with hydraulic and mechanical grips, bending fixtures, compression platens, and application-specific accessories for testing metals, composites, and other structural materials.
In addition to equipment supply, NextGen provides calibration and certification services for both NextGen systems and third-party universal testing machines. Certification is performed in accordance with applicable standards and can include force, displacement, and system verification. Examples of available certificates are shown below:
Products
NG-SHM Series A — Servo-Hydraulic Universal Testing Machines (300 kN – 3000 kN)
NG-SHM Series A is a high-force servo-hydraulic universal testing machine for static mechanical testing of metals and structural components. Available from 300 kN to 3000 kN, it uses a high-stiffness multi-column frame and dual-zone layout for tensile and compression work. Hydraulic wedge grips, extensometer compatibility, and GenTest software support testing of rebar, fasteners, chains, welds, castings, and large metallic specimens.
NG-SHM CLASS DP - Servo Hydraulic Testing Machine
NG-SHM Class DP is a high-force servo-hydraulic testing machine with an upper actuator, single-zone test space, and side-action hydraulic wedge grips. Available in 600 kN, 1000 kN, and 2000 kN capacities, it supports tension, compression, bending, and shearing tests on metals and structural specimens. Its automatic clamping adjustment, dual-direction grip alignment, precision transducer, and long-travel cylinder help deliver stable, repeatable results.
NG-SHM Class D - Servo Hydraulic Universal Testing Machine
NG-SHM Class D is a servo-hydraulic universal testing machine for high-force mechanical testing of metals and structural components. Available in 600 kN, 1000 kN, and 2000 kN capacities, it uses an upper actuator and single-zone test space for tension, compression, bending, and shearing. Its long-travel cylinder, wedge hydraulic grips, and rigid guidance system make it suitable for extra-long, high-elongation specimens.
NG-SHM Class C - Servo Hydraulic Testing Machine
NG-SHM Class C is a servo-hydraulic universal testing machine for high-force metal testing, with capacity options of 600 kN and 1000 kN. Its longer jaw face is designed for tensile testing of stranded steel wire, while the 6-column frame, dual-zone test space, hydraulic wedge grips, quick-return valve, and precision load cell support accurate, repeatable testing of rebar, fasteners, chains, welds, and castings.
NG-SHM Class B - Servo Hydraulic Testing Machine
NG-SHM Class B is a high-force servo-hydraulic universal testing machine for tensile, compression, and flexural testing of metals and other high-strength materials. Available from 300 kN to 3000 kN, it uses a rigid multi-column frame, dual-zone test space, hydraulic wedge grips, and precise load-cell measurement to support reliable testing of fasteners, rebar, chains, welds, castings, and structural components.
GenTest v3.0 Software for Universal Testing Machines
GenTest v3.0 is NextGen’s data acquisition and test control software for universal testing machines, built around method-driven workflows for tensile, compression, and flexural testing. It connects setup parameters, live channels, curves, calculations, recorded data, and report outputs within one test record, helping laboratories standardize operator inputs, control steps, results review, and documentation across servo-hydraulic and electromechanical UTM stations.
FAQs
Here are some fundamental differences between Class A and Class DP Servo Hydraulic Universal Tensile Testers:
- Class A can only perform tension or compression test, while Class DP can perform tension and compression cyclical test.
- Class DP is much heavier system than Class A. It is a robust machine equipped with a heavier bottom platen and top platen. It also has a much larger cylinder.
- Class DP tensile tester uses I type load cell. This is an more advanced, precise and reliable load cell relative to Class A system.
- During specimen clamping Class DP Servo Hydraulic machine has smaller initial force than Class A. That means that Class DP has smaller rate of damage on specimens during clamping.
- Class DP system is shock absorbent allowing for a minimum ground shock upon tensile specimen break.
- Class DP is easier for tensile testing in general. It is more user friendly, accessible and accurate. When it comes to Class A tensile tester, the operator needs to use a small ladder when loading the specimens, because the tensile test space is in the upper section of the tester.
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