Screw Torque Testing Machine
Category：Torsion Testing Machine
Introduction
The Screw Torque Testing Machine is designed for torsional mechanical performance testing of screws, bolts, nuts, threaded rods, and other threaded fasteners. With corresponding fixtures, the machine can be configured for different specimen sizes and test requirements.
The equipment is suitable for quality inspection, industrial manufacturing, mechanical engineering, metallurgy, aerospace, automotive, construction and building materials, as well as material torsion teaching and research in universities and laboratories.
Application
The Screw Torque Testing Machine can be used for torsional testing of:
(1) Screws
(2) Bolts
(3) Nuts
(4) Threaded rods
(5) Other threaded fasteners
Typical test applications include:
(1) Torque testing
(2) Torsion angle testing
(3) Torque-angle relationship analysis
(4) Torsional failure testing
(5) Quality inspection of threaded fasteners
(6) Material torsion research and teaching
Standards
(1) JB/T 9370-1999 — Technical Conditions for Torsion Testing Machines
(2) GB 2611-2007 — General Requirements for Testing Machines
(3) JJG 269-2006 — Verification Regulation of Torsion Testing Machines
Parameters
| Parameter | Specification |
|---|---|
| Maximum Test Torque | 5 Nm / 20 Nm / 50 Nm / 100 Nm / 200 Nm / 300 Nm / 500 Nm / 1000 Nm / 2000 Nm |
| Test Stroke | 300 mm / 600 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 |
| Rotation Direction | Bidirectional loading |
| Torsion Fixture | Three-jaw chuck |
| Power Supply | 220 V, 50 Hz |
| Applicable Specimens | Various sizes of screws and other threaded fasteners |
Features
(1) Wide Torque Range – Configurations from 5 Nm to 2000 Nm are available to accommodate different screw and fastener testing requirements.
(2) Bidirectional Loading – Supports torsional loading in both directions.
(3) High-Resolution Angle Measurement – The listed angle resolution is 0.01°.
(4) Flexible Fixture Configuration – A three-jaw chuck is provided for securing threaded specimens.
(5) Multiple Fastener Applications – Suitable for screws, bolts, nuts, threaded rods, and other threaded components.
(6) Laboratory and Industrial Use – Suitable for quality inspection, manufacturing, research, teaching, and material torsion studies.
(7) Customizable Test Speed – The test speed range is 0.1–720°/min and can be customized according to test requirements.
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