High-Strength Bolt Verification Tester
Category：Torsion Testing Machine
Introduction
The High-Strength Bolt Verification Tester is a testing device developed for high-strength fastener and bolt manufacturers. It can perform torsional performance testing of general structural steel bolts, mechanical structural steel bolts, chromium-aluminum alloy steel bolts, nickel-chromium alloy steel bolts, nickel-chromium-molybdenum alloy steel bolts, large hexagon head bolts for steel structures, welding studs, wind turbine tower bolts, torque-shear bolts, anchor bolts, general high-strength bolts, double-ended bolts, and other non-standard bolts.
The High-Strength Bolt Verification Tester meets the requirements of GB, DIN, ASTM, and JIN standards as stated in the supplied product information.
Application
The High-Strength Bolt Verification Tester is suitable for torsional performance testing of:
(1) General structural steel bolts
(2) Mechanical structural steel bolts
(3) Chromium-aluminum alloy steel bolts
(4) Nickel-chromium alloy steel bolts
(5) Nickel-chromium-molybdenum alloy steel bolts
(6) Large hexagon head bolts for steel structures
(7) Welding studs (stud bolts)
(8) Wind turbine tower bolts
(9) Torque-shear bolts
(10) Anchor bolts
(11) General high-strength bolts
(12) Double-ended bolts
(13) Other non-standard bolts
Standards
The supplied product information lists the following standards:
(1) GB/T 16823.3-2010 — Tightening Test Method for Threaded Fasteners
(2) GB/T 16823.1-2010 — Stress and Bearing Areas of Threaded Fasteners
(3) GB/T 16823.2-2010 — General Rules for Tightening of Threaded Fasteners
(4) GB 3098.1-2010 — Mechanical Properties of Fasteners — Bolts, Screws and Studs
(5) GB/T 16823.3-2010 — Fasteners — Torque-Clamp Force Testing
(6) GB/T 1231-2006 — Technical Conditions for High-Strength Large Hexagon Head Bolts, Large Hexagon Nuts and Washers for Steel Structures
(7) BS EN 14399-4:2005 — High-strength Structural Bolting Assemblies for Preloading — Part 4: System HV — Hexagon Bolt and Nut Assemblies
(8) GB 10128-2007 — Metallic Materials — Torsion Test at Room Temperature
(9) B/T 1231-2024 — High-Strength Large Hexagon Head Bolt Assemblies for Steel Structures
Parameters
| Parameter | Specification |
|---|---|
| Maximum Test Torque | 20 Nm / 50 Nm / 100 Nm / 200 Nm / 300 Nm / 500 Nm / 1000 Nm / Customizable |
| Axial Force Measurement Range | 20 kN / 50 kN / 100 kN / 200 kN / 300 kN / 500 kN / 1000 kN |
| Testing Machine Class | Class 0.5 / Class 1 |
| Bolt Size | M4–M60 |
| Bolt Length | 60–280 mm |
| Bolt Axial Force | 1500 kN, customizable |
| Test Speed | 0–720°/min, customizable |
| Relative Torque Measurement Error | ±1% / ±0.5% for precision type |
| Relative Axial Force Measurement Error | ±1% / ±0.5% for precision type |
| Torsion Angle Measurement Range | 0–Infinite |
| Motor Power | 400 W / 750 W / 1/2 kW / 2.5 kW / 3 kW |
| Power Supply | Three-phase 220 V, 50 Hz / Three-phase 380 V, 50 Hz |
Features
(1) Designed for High-Strength Bolts – Developed for high-strength fastener and bolt manufacturers.
(2) Wide Bolt Size Range – The supplied specification covers bolts from M4 to M60.
(3) Torque and Axial Force Testing – The system provides both torque and axial force measurement.
(4) Multiple Torque Configurations – Maximum test torque ranges from 20 Nm to 1000 Nm, with customized configurations available.
(5) Precision Measurement Option – Torque and axial force measurement errors can be specified as ±0.5% for the precision type.
(6) Wide Application Range – Suitable for structural bolts, wind turbine tower bolts, torque-shear bolts, anchor bolts, double-ended bolts, and other bolt types.
(7) Adjustable Test Speed – Test speed is specified as 0–720°/min and can be customized.
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