Computer controlled electronic universal testing machine
The Computer-Controlled Electronic Universal Testing Machine is designed for mechanical property testing of soft foam polymer materials. The system integrates a servo drive, precision ball screw transmission, high-accuracy force measurement, and computer-based control to perform tensile, compression, tear, and deformation tests. It is suitable for determining strength, deformation, and durability parameters of polyurethane foam materials under controlled loading conditions, in accordance with relevant national standards.
Application
(1) Determination of tensile strength and elongation at break of soft foam polymers.
(2) Measurement of compression strength and compression permanent deformation.
(3) Evaluation of compression hardness and collapsibility of polyurethane foam.
(4) Tear performance testing of soft foam polymer materials.
(5) Material research, production quality control, and inspection testing of foam polymers.
Standards
(1) GB/T 6344-2018 — Determination of tensile strength and elongation at break of flexible cellular polymeric materials
(2) GB/T 6669-2008 — Determination of compression set of flexible cellular polymeric materials
(3) GB/T 10807 — Test method for compression hardness of flexible cellular polymeric materials
(4) GB/T 10808 — Test method for tear strength of flexible cellular polymeric materials
(5) GB/T 16491 — Electronic universal testing machines
Features
(1) Imported servo motor combined with double precision ball screw transmission.
(2) High-precision force sensor with full-range linear response.
(3) Multiple test modes including tensile, compression, and tear testing.
(4) Automatic curve generation with selectable data analysis segments.
(5) Automatic break detection and stop function.
(6) Automatic protection against overload, over-current, over-voltage, under-voltage, and over-temperature.
(7) Constant force and constant deformation control modes.
(8) Automatic return and zero-clearing functions.
(9) Manual control via Chinese LCD control box for beam positioning.
Test Functions
(1) Tensile test: force–elongation, stress–strain, strength–time, force–time, extension–time, strain–time curves.
(2) Compression test: force–deformation, stress–strain, strength–time, force–time, deformation–time, strain–time curves.
(3) Local curve magnification and reduction for detailed analysis.
(4) Selective data extraction and curve-based analysis.
(5) Automatic storage of test conditions, results, curves, and batch sample data.
(6) Report generation in Excel, Word, or PDF formats with selectable comparison curves.
Technical Parameters
| Item | Specification |
|---|---|
| Testing machine accuracy grade | 0.5 |
| Maximum test force | 1 kN – 20 kN |
| Effective force measurement range | 0.4% – 100% FS |
| Force measurement accuracy | ±0.5% |
| High-precision sensor accuracy | ±0.5% |
| Displacement measurement range | 0 – 999 mm |
| Displacement resolution | 0.001 mm |
| Displacement accuracy | ±0.5% |
| Beam deformation measurement range | 600 mm |
| Beam deformation accuracy | ±0.5% |
| Effective test width | 900 mm |
| Beam maximum effective travel | 1200 mm |
| Test speed range | 0.05 – 500 mm/min (stepless) |
| Speed accuracy | ±0.5% |
| Resolution | 1/300000 |
| Uniform test force / deformation rate control range | 0.01% – 10% FS/s |
| Control error (uniform rate) | ±0.5% |
| Constant force / deformation control range | 0.5% – 100% FS |
| Constant control error | ≤10% FS: ±1% set value; >10% FS: ±0.1% set value |
| Power supply | AC 220 V, 0.5 kW |
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