Pipe Wrench Torque Testing Machine
The Pipe Wrench Torque Testing Machine is primarily designed for torsional mechanical performance testing of pipe wrenches, hardware tools, components, and raw materials. It is widely used by hardware tool manufacturers, quality supervision authorities, metrology and testing institutes, metallurgy companies, aerospace organizations, automotive manufacturers, and research institutions.
Applications
Torsion Angle Measurement — Measures the torsion angle of pipe wrenches and other test specimens.
Torque Measurement — Measures the torque applied during testing.
Curve Analysis — Generates and analyzes torque, angle, and other test curves.
Time and Speed Measurement — Records torsion time and test speed.
Maximum and Peak Torque — Determines the maximum torque and peak torque of the specimen.
Constant Torque Testing — Performs tests at a preset torque value.
Destructive Testing — Determines the torsional failure performance of the specimen.
Pass/Fail Testing — Evaluates whether the tested product meets specified torque requirements.
Standards
GB/T 16452 — Pipe Wrenches
ISO 6787 — Assembly Tools for Screws and Nuts — Adjustable Wrenches
GB/T 2611 — General Technical Requirements for Testing Machines
GB/T 10128 — Metallic Materials — Torsion Test Method at Room Temperature
JJG 269 — Verification Regulation for Torsion Testing Machines
Technical Specifications
| Item | Specification |
|---|---|
| Maximum Test Torque | 10 / 20 / 50 / 100 / 200 / 300 N·m; 500–3000 N·m (customizable) |
| Test Stroke | 300 mm |
| Testing Machine Accuracy Class | Class 0.5 / Class 1 |
| Torque Measurement Range | 1%–100% of full scale |
| Minimum Torque Resolution | 0.01 N·m / 0.1 N·m |
| Angle Resolution | 0.01° |
| Maximum Torsion Angle | 99.999° |
| Test Speed | 0.1–720°/min (customizable) |
| Relative Error of Angle Indication | <±0.5% |
| Repeatability Error of Angle Indication | <0.5% |
| Relative Error of Torque Indication | <±0.5% |
| Repeatability Error of Torque Indication | <0.5% |
| Test Speed Accuracy | Better than ±1% of indicated value |
| Rotation Direction | Bidirectional loading |
| Torsion Fixture | 1 set |
| Power Supply | 220 V, 50 Hz |
| Applicable Tools | Pipe wrenches and similar tools |
Test Environment
Ambient Temperature: 10–35°C
Relative Humidity: ≤80%
Installation: Installed on a stable foundation or workbench
Environment: Free from significant vibration and corrosive media
Power Supply: Voltage fluctuation within ±10% of the rated voltage
The equipment can be used for pipe wrench quality inspection, product development, production quality control, material evaluation, and torsional performance verification.
Features
Wide Torque Range: Available with maximum test torques from 10 to 300 N·m, with 500–3000 N·m customizable options.
High-Precision Torque Measurement: Torque measurement range covers 1%–100% of full scale, with a minimum torque resolution of 0.01 N·m / 0.1 N·m.
High-Resolution Angle Measurement: Angle resolution reaches 0.01°, with a maximum torsion angle of 99.999°.
Adjustable Test Speed: Test speed can be continuously adjusted from 0.1–720°/min, with customizable speed ranges available.
Bidirectional Loading: Supports both clockwise and counterclockwise torsional loading.
Accurate Measurement: Angle and torque indication errors are less than ±0.5%, with repeatability errors below 0.5%.
Multiple Test Modes: Supports constant-torque testing, destructive testing, peak torque measurement, and pass/fail evaluation.
Interchangeable Fixtures: Equipped with dedicated torsion fixtures and can be configured for different pipe wrench specifications.
Computer-Controlled Testing: Supports automatic test control, data acquisition, curve analysis, data storage, and test report generation.
Safety Protection: Can be configured with overload protection and automatic stop functions to protect the equipment and specimen.
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