Bolt Torsion Testing Machine
Category：Torsion Testing Machine
Introduction
The Bolt Torsion Testing Machine is designed for the torsional mechanical performance testing of various bolts and nuts, including friction-type bolts, bearing-type bolts, tension-type bolts, torsion-control bolts, studs, square-head bolts, and hex nuts.
The machine supports automatic test control and closed-loop control of torque, stress, deformation, and torsion angle. Test parameters and control modes can be configured according to the test requirements. The loading and unloading processes are smooth and stable, with shock-free switching between control modes.
Application
The Bolt Torsion Testing Machine is suitable for testing:
(1) Standard bolts
(2) Friction-type bolts
(3) Bearing-type bolts
(4) Tension-type bolts
(5) Torsion-control bolts
(6) Stud bolts
(7) Square-head bolts
(8) Hex nuts
(9) Other threaded fastening components
Typical applications include:
(1) Bolt torsional performance testing
(2) Torque testing
(3) Torsion angle measurement
(4) Torsional strength evaluation
(5) Torque-deformation analysis
(6) Quality inspection of bolts and fasteners
(7) Research and development of fastening components
Parameters
| Parameter | Specification |
|---|---|
| Maximum Test Torque | 10 Nm / 20 Nm / 50 Nm / 100 Nm / 200 Nm / 500 Nm / 5000 Nm / 10000 Nm |
| Test Stroke | 300 mm |
| Testing Machine Class | Class 0.5 / Class 1 |
| Torque Measurement Range | 1%–100% FS |
| Minimum Torque Reading | 0.01 Nm / 0.1 Nm |
| Angle Resolution | 0.01° |
| Maximum Torsion Angle | 99999° |
| Test Speed | 0.1–720°/min, customizable |
| Relative Angle Indication Error | < ±0.5% |
| Angle Indication Repeatability Error | < 0.5% |
| Relative Test Force Indication Error | < ±0.5% |
| Test Force Indication Repeatability Error | < 0.5% |
| Test Speed Accuracy | Better than ±1% of indication |
| Loading Direction | Bidirectional |
| Torsion Fixture | Three-jaw chuck |
| Power Supply | 220 V, 50 Hz |
| Applicable Specimens | Bolts, friction-type bolts, studs, hex nuts, square-head bolts, etc. |
Features
(1) Wide Bolt Compatibility – Suitable for different bolt and nut configurations used in mechanical and structural applications.
(2) Closed-Loop Control – Torque, stress, deformation, and torsion angle can be controlled and monitored through the closed-loop testing system.
(3) Automatic Test Control – The test process can be automatically controlled according to preset test conditions.
(4) Flexible Control Modes – Control modes can be configured according to different testing requirements.
(5) Smooth Loading and Unloading – The system provides stable loading and unloading with shock-free transitions.
(6) Wide Torque Capacity – Configurations range from 10 Nm to 10000 Nm, allowing the equipment to cover different bolt testing requirements.
(7) Bidirectional Testing – Supports torsional loading in both rotational directions.
(8) Data Monitoring – Torque, deformation, stress, and torsion angle can be monitored during testing for performance analysis.
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