1. Product overview

   Electronic bolt tension and torsion testing machine, also known as high-strength bolt axial torque (torque) testing machine or electronic bolt connection pair testing machine, is a special purpose torsion testing machine, dedicated to testing large hexagon bolts, torsion shear bolts, The tensile and torsion testing machine for high-strength structural bolt pairs, torque, maximum torque, axial force, torque coefficient and other parameters of high-strength structural bolt pairs, four-corner bolts, is composed of loading system, transmission system, bolt fixture part, digital data acquisition and processing system, liquid crystal display, etc.

 The electronic bolt tension and torsion testing machine adopts horizontal structure, liquid crystal display, all-digital data acquisition and control system, motor reducer transmission, two-way torsion sensor and axial sensor to detect torque and axial force, with uniform loading, stable performance and quality Reliable, non-impact, accurate data collection and control, widely used in bolt and nut production and use enterprises, aerospace, wind power, photovoltaic, iron tower, steel structure, automobile transportation, construction machinery, universities, research institutes, quality supervision, etc. industry.

Applicable standards:

• JB/T9370—2007 "Technical Conditions of Torsion Testing Machine"

• GB10128-2007 "Metallic materials room temperature torsion test method"

• GB/T1231-2006 "Technical conditions for high-strength large hexagon head bolts, large hexagon nuts and washers for steel structures"

• GB/T3632-2008 "Twist-shear type high-strength bolt connection pair for steel structure" Users can also provide related technical standards, such as ISO, ASTM, EN, DIN, JIS, and realize the control of test methods and related according to the standards provided by users Data collection and processing.

2. Technical parameters of electronic bolt tension and torsion testing machine

1. Maximum torque: 1000N.m; 2000Nm

2. Measuring range: 20-1000 Nm; 40-2000Nm

3. Relative error of test torque indication: ±1%

4. Torque repeatability error: 1%

5. Torque resolution: 1N.m;

6. Measuring range of axial force: 6-300kN

7. Relative error of axial force indication: better than ±1% of indicated value

8. Axial force repeatability error: 1%

9. Axial force resolution: 0.5kN

10. Torsion speed: 30～360°/min

11. Power supply voltage: AC380V 50Hz

12. Twisting direction: forward and reverse