Description
The bolt torque testing machine is a precision instrument designed to evaluate the relationship between applied torque, generated axial clamping force, and torque coefficient in high-strength structural bolts. These bolt torque testing machines are critical for ensuring proper preload, preventing joint loosening, and verifying friction characteristics in steel construction, bridges, wind turbines, and heavy machinery.
Modern bolt torque testing machines simultaneously monitor torque (up to 5000 Nm) and axial tension (up to 2000 kN), calculating key parameters like total friction, thread friction, under-head friction, and the K-factor with high accuracy.
Key Features of a High-Performance Bolt Torque Testing Machine
- Dual Sensors: High-accuracy torque and load cells for real-time data
- Bolt Range: M12–M36 (grades 8.8, 10.9, 12.9) with quick-change adapters
- Automated Testing: Computer-controlled tightening, angle measurement, and reporting
- Real-Time Curves: Torque vs. axial force and torque vs. angle graphs
- Safety & Compliance: Overload protection and full traceability
| Parameter | Specification |
|---|---|
| Control System | Computer-controlled (PC + Software) |
| Display | Digital (Real-time force & torque) |
| Loading Method | Dynamic Load (Electronic + Servo) |
| Motor Type | AC Servo Motor |
| Motor Power | 0.37 kW |
| Motor Speed | 0.5 r/min (precision slow rotation) |
| Voltage (Control System) | 220V AC, 50/60 Hz |
| Voltage (Motor) | 380V AC, 3-phase |
| Parameter | Specification |
|---|---|
| Weight | 1,000 – 2,000 kg |
| Power Source | AC 220V (control), AC 380V (motor) |
| Transport Package | Non-solid wood packaging box |
| Delivery Time | 30 days |
| Customization | Yes (software, fixtures, test protocols) |
| OEM Service | Yes |
| Quality Inspection | 100% pre-shipment inspection |
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