The WDW-20B high and low temperature electronic universal testing machine is a high-precision, multi-purpose material testing machine that tests the mechanical properties of various metal materials, non-metal materials, composite materials, polymer materials, and other materials in high and low temperature environments. The precision ball screw is driven by a servo motor through a reduction system to rotate and drive the loading crossbeam to move up and down, completing tests such as tension, compression, bending, shearing, tearing, peeling, puncturing, and bursting of the sample or component. The tension and compression spaces can be automatically adjusted by the rotation of the screw and the movement of the middle crossbeam up and down.
A precision closed-loop control system composed of a controller, servo motor, load sensor, displacement sensor, extensometer, and computer can automatically and accurately control the testing process, and automatically measure testing parameters such as force, displacement, and deformation.
The testing machine can achieve tests such as equal rate test force, constant rate deformation, and constant rate displacement, and can achieve three-stage control of force, deformation, and displacement in one test, with smooth transitions between each control.
The experimental parameters can be automatically controlled and the experimental results can be obtained through computer collection and software processing. Real time display of test curves and results on computer screens, and printing of test reports and curves.
Related Standards
GB/T 16491---- "Electronic Universal Testing Machine"
GB/T 2611----General Technical Requirements for Testing Machines
GB/T 13634---- "Calibration of Standard Force Measuring Instruments for Inspection of Uniaxial Testing Machines for Metallic Materials"
GB/T 22066---- "Evaluation of Computer Data Acquisition Systems for Static Uniaxial Testing Machines"
GB/T 16825.1---- "Inspection and Calibration of Static Uniaxial Testing Machines for Metallic Materials - Part 1: Inspection and Calibration of Force Measuring Systems for Tensile and/or Compressive Testing Machines"
JJG 139---- "Tensile, Pressure, and Universal Testing Machines"
JB/T 6146---- "Technical Conditions for Stretchers"
| Model | WDW-20B |
| Max. test force（kN） | 20 |
| Testing machine accuracy | 0.5 clasee |
| Relative error of the test force indication value | Within ±0.5％ |
| Test force measurement range | 0.4％－100％FS |
| Deformation（Extensometer）measurement range | 1%--100%FS |
| Relative error of deformation indication value | Within ±0.5％ |
| Range of strain control rate | 0.005-0.5FS/S |
| Crosshead movement range(mm) | 1100 |
| Crosshead moving speed (mm/min) | 0.001～1000 |
| Width of test space（mm） | 430 |
| Max. tensile test space（mm） | 700 |
| Max. compression test space（mm） | 700 |
| Round grip size range（mm） | Φ4～Φ20 |
| Compression platen size（mm） | Ø100 |
| Frame dimension（length×width×height，mm） | 845×820×2078mm |
| Total power（W） | 1000 |
| Weight（kg） | 540 |
| Power | 220V/50Hz±10% |
| Maximum sampling frequency | 1000Hz |
