Ratchet Wrench Torsion Testing Machine
The Ratchet Wrench Torsion Testing Machine is primarily designed for torsional performance testing of ratchet wrenches. The test specimen is securely installed between adjustable fixtures, and interchangeable fixtures can be provided to accommodate different ratchet wrench specifications and testing requirements.The testing system uses computer-controlled operation to acquire and analyze key test data, including torque, peak torque, torsion angle, and test curves.
Applications
Ratchet Wrench Manufacturers — Testing maximum torque, torsional strength, and torsional performance of ratchet wrenches.
Hand Tool Manufacturers — Product development, production quality control, and factory inspection.
Quality Inspection Laboratories — Torque performance testing and quality evaluation of ratchet wrenches.
R&D Departments — Analyzing the performance of materials and structures under torsional loading.
Third-Party Testing Institutions — Product certification, quality testing, and conformity assessment.
Applicable Standards
QB/T 4619-2013 — Ratcheting Wrenches
GB/T 2611 — General Technical Requirements for Testing Machines
GB/T 3390.2 — Hand-operated Socket Wrenches — Driving Squares and Square Drives
GB/T 14765 — Cross-Handle Sockets
ISO 21982:2020 — Assembly Tools for Screws and Nuts — Ratcheting Wrenches — Technical Requirements (iso.org)
Technical Specifications
| Item | Specification | |
|---|---|---|
| Maximum Test Torque | 100 / 200 / 300 / 500 / 1000 / 2000 / 5000 N·m | |
| Test Stroke | 300 mm | 500 mm |
| Testing Machine Accuracy Class | Class 1.0 / Class 0.5 |
| Torque Measurement Range | 1%–100% of full scale |
| Minimum Torque Resolution | 0.01 N·m / 0.1 N·m |
| Minimum Torsion Angle Resolution | 0.1° |
| 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 |
| Power Supply | AC 380 V / 220 V |
| Safety Stop | Stops automatically upon torque overload or specimen failure |
| Applicable Tool | Ratchet Wrenches |
Key Features
High-Precision Torque Measurement — Accurately measures test torque and peak torque during testing.
Bidirectional Loading — Supports clockwise and counterclockwise loading for testing different types of ratchet wrenches.
Adjustable Fixtures — Adjustable fixture spacing accommodates ratchet wrenches of different specifications.
Torque–Angle Analysis — Acquires torque and torsion angle data and generates relevant test curves.
Computer-Controlled Operation — Computer-controlled test parameter setting, data acquisition, and analysis.
Automatic Safety Stop — Provides automatic shutdown in case of torque overload or specimen failure, improving testing safety.
Multiple Torque Ranges — Available with different maximum test torque configurations, such as 100–5000 N·m, with customized ranges available according to testing requirements.
Data Management — Supports test data storage, retrieval, and test report printing.
Wide Application Range — Suitable for torque and torsional performance testing of ratchet wrenches with different specifications.
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