Rock Bolt Torsion Testing Machine
Category：Torsion Testing Machine
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Intl. Standards
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Introduction
The Rock Bolt Torsion Testing Machine is designed for static torsional testing of metal rock bolts, steel bolts, resin bolts, hollow bolts, and split-set rock bolts. The system measures torque and torsion angle while automatically generating torque-angle and torque-time curves for evaluating the torsional performance of rock bolt products.
Application
The machine is suitable for testing:
(1) Metal and steel rock bolts
(2) Resin rock bolts
(3) Hollow rock bolts
(4) Split-set rock bolts
(5) FRP rock bolts
(6) Mining and underground support components
Standards
(1) MT 146.2 — Resin Anchor Bolt: Metal Bar and Accessories
(2) MT/T 1061-2008 — Resin Anchor Bolt: Glass Fiber Reinforced Plastic Bar and Accessories
(3) MT 218 — Cement Anchor Bolt: Bar Body
(4) MT/T 1061-2008 Appendix A — Loading System for Anchor Bolt Torque Testing
Parameters
| Parameter | Specification |
|---|---|
| Torque Capacity | 1 / 50 / 100 / 200 N·m, customizable |
| Testing Machine Class | 0.5 / 1 Class |
| Torque Measurement Range | 1% FS–100% FS |
| Torque Resolution | 0.001–0.01 N·m |
| Torque Resolution | 1/±300000 |
| Loading Direction | Forward and reverse |
| Torsion Speed | 0.1–720°/min, customizable |
| Torsion Angle Range | 0–±365° |
| Test Space | 300–3000 mm, customizable |
| Torque Indication Repeatability Error | <0.5% |
| Torque Indication Error | <±0.5% / <±1% |
| Angle Indication Error | <±0.5% |
| Loading Mode | Automatic |
| Fixtures | Customizable |
| Power Supply | 220 V, 50 Hz |
| Weight | Approx. 200 kg |
| Appearance | Complies with GB/T 2611 |
| Safety Protection | Overload protection |
Features
(1) Wide Application Range – Suitable for various metal, resin, hollow, and FRP rock bolts.
(2) Automatic Testing – Automatically controls the loading process and records test data.
(3) Torque & Angle Measurement – Accurately measures torque and torsion angle during testing.
(4) Multiple Test Modes – Supports testing of torque at a specified torsion angle or torsion angle at a specified torque.
(5) Curve Analysis – Automatically generates torque-angle, torque-time, and angle-time curves.
(6) Data Management – Test conditions and results can be automatically saved, displayed, and printed.
(7) Custom Fixtures – Fixtures can be configured according to different rock bolt structures and dimensions.
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