Computer-Controlled High-Strength Bolt Testing Machine

I. Main Applications and Technical Parameters

1.1 Main Applications

This testing machine is designed and manufactured in compliance with the following standards:

EN 14399-2:2005

High-strength structural bolting assemblies for preloading – Part 2: Suitability test for preloading

ISO 14399-2

High-strength structural bolting assemblies for preloading – Part 2: Suitability test for preloading

GB/T 16823.2-1997

General rules for tightening threaded fasteners – Part 2: Preload

GB/T 50205-2020

Code for acceptance of construction quality of steel structures

NB/T 31082-2016

High-strength bolting assemblies for wind turbine tower flanges

GB/T 3098.1-2010

Mechanical properties of fasteners – Part 1: Bolts, screws and studs

GB 50205-2020

Standard for construction quality acceptance of steel structuresIt is used to test the fastening axial force, tightening torque, torque coefficient, and tightening angle of hexagonal head high-strength bolt assemblies (M12–M36). Results are displayed and printed automatically. After completing a set of tests, the machine automatically calculates the average axial force, average torque, average torque coefficient, standard deviation, and variation coefficient for N test samples.

1.2 Technical Parameters

Voltage:

Control system: 220V AC

Motor: 380V AC

Motor Power: 4.0KW

Output Speed: 0.1–4r/min

Axial Force Range: 50–1000kN

Torque Range: 100–5000Nm

Bolt Specifications: M12–M39

Bolt Length: 50–350mm

Testing Accuracy:

Axial Force: ±1.0%

Torque: ±1.0%

1.3 Control Modes

The equipment supports three control modes:

Pre-set axial force

Pre-set torque

Pre-set rotation angle

Advanced functions:

Pre-set initial torque → First target angle → Second target angle

Measure torque and axial force values at each target stage.

II. Configuration List

After - Sales Service:

1. One year product warranty

2. Permanent free software updates

3. Permanent maintenance services

4. Permanent Remote guidance

About US

As a specialized testing equipment manufacturer with over 20 years of industry experience, our company is backed by a team of more than 20 R&D experts, over 50 skilled production personnel, and a professional after-sales service team of 10+ members. With production and office facilities spanning 4,000+ square meters, we are certified as a National High-Tech Enterprise in China.

Our ISO 9001:2015-certified management system ensures consistent product quality. Annually sourcing approximately 5,000 tons of raw materials, we maintain full control over component machining and product assembly in-house, achieving a 3% manufacturing cost advantage compared to industry peers.

Over the past five years, we have maintained an on-time delivery rate exceeding 98.2%, a product failure rate below 0.3%, and a rework rate under 0.28%, demonstrating our commitment to quality and reliability. Additionally, we provide OEM manufacturing services for 20+ Chinese exporters, producing around 600 units of mechanical testing equipment annually, further solidifying our industry leadership.

Our brand "Nake Test Equipment" is highly recognized in China, with products exported to 30+ countries. As a direct manufacturer with independent design and production facilities, we offer competitive advantages over distributors or intermediaries. For collaboration inquiries or further details, please contact us to explore partnership opportunities.

Hot Tags: computer-controlled high-strength bolt testing machine, China computer-controlled high-strength bolt testing machine manufacturers, suppliers, 1000NM Digital Torque Wrench, 2000NM Digital Torque Wrench, Torque Wrenches