Precise, efficient and durable industrial-grade solution
In key industrial scenarios such as wind power tower bolt pre-tightening and oil pipeline flange assembly, the accuracy of tension control and equipment reliability directly determine engineering safety. Our new generation of hydraulic electric tensioning pumps, with 1500Bar ultra-high pressure working capacity and intelligent engineering design, is setting a technical benchmark in the global high-end industrial market.
Analysis of six major technical innovation points
1. Military-grade pressure bearing system
Adopting German imported plunger pump group and Swiss pressure sensor, combined with multi-layer reinforced sealing structure, it still maintains stable output under 1500Bar continuous working conditions. This performance has been verified by EN ISO 898 standard and is particularly suitable for elastic tensioning of M160-level bolts in the wind power industry.
2. Intelligent two-stage flow technology
• High-pressure mode (0.4L/min): Achieve ±3% tension control accuracy to meet ultra-high-precision assembly requirements such as nuclear power equipment.
• Low-pressure mode (8L/min): Rapid oil filling shortens preparation time by 30%.
The dual mode is switched with one button on the control panel, which is 40% more efficient than traditional single-stage pumps.
3. All-weather operation support system
• External circulation cooling module: The oil temperature can still be controlled within 45℃ at an ambient temperature of 55℃, supporting 8 hours of continuous operation.
• Aerospace-grade 6061 aluminum alloy fuel tank: Compared with traditional steel fuel tanks, the weight is reduced by 58%, and the corrosion resistance is improved by 3 times.
• IP65 protection motor cabin: Adapt to extreme environments such as deserts and offshore platforms.
4. Breakthrough in brushless motor pressure start
Integrated with Japanese NSK bearings and rare earth permanent magnet rotors, it can still achieve smooth start-up under 800Bar system back pressure, overcoming the technical bottleneck of traditional brushed motors that are easy to burn out during pressure start-up, and extending the equipment life to 10,000 hours.
5. Visualized precise control interface
• 0.25-level precision pressure gauge (range 0-1600Bar)
• Dual-color LED pressure warning system (yellow/red zone warning)
• Bluetooth 5.0 wireless data transmission module (optional)
Achieve the deviation between the tension value and the theoretical preload force ≤1.5%, meeting the requirements of ASME PCC-1 specification.
Typical application scenarios
Wind power field: Synchronous preload of main shaft bolts of wind turbines above 3MW.
Petrochemical engineering: Stress balance control of LNG tank ring welding flange.
Bridge construction: Graded tensioning operation of cable anchors.
Heavy machinery: Intelligent maintenance of shield machine cutter head bolt group.
Why choose our solution?
Compared with similar products on the market, this device has:
✓ Energy efficiency ratio: 22% lower power consumption per unit pressure (3.2kW/1000Bar vs 4.1kW).
✓ Integration: 40% smaller volume, suitable for space-constrained scenarios such as offshore platforms.
✓ Intelligence: supports pressure curve recording and IoT access (compliant with ISO 13374 standards).
To view the complete technical white paper and engineering cases, please contact our hydraulic system engineers for customized solutions.
