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BST series hydraulic wrench, Ultra-High-Strength Material, Dual-Action Hydraulic Design, High-Precision Torque Control, High Adaptability, Easy Reaction Point Positioning

BST hydraulic torque wrench is made of ultra-high strength alloy material, for the double action hydraulic design, can lock and loosen the bolt connection, widely suitable for torque bolt disassembly, torque accurate adjustable, the error is not more than +3%, special space of the bolt tight, and easier to find the reaction fulcrum.
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  • BST

1.Ultra-High-Strength Material: It is made of ultra-high-strength alloy steel, ensuring durability and safety under high-torque loads, with excellent fatigue resistance and a long service life.

2.Dual-Action Hydraulic Design: It features a unique dual-action (bidirectional) hydraulic cylinder design, allowing both tightening and loosening of bolts. This dual-function capability improves work efficiency.

3.High-Precision Torque Control: It provides precise and adjustable torque output with an error margin within ±3%, ensuring bolt preload meets design requirements and equipment safety.

4.High Adaptability: It is widely suitable for various large-diameter, high-strength bolt fastening and loosening tasks, especially advantageous in confined or "hard-to-reach" spaces.

5.Easy Reaction Point Positioning: The rational design makes it easier to locate and secure reaction points compared to traditional tools, ensuring more convenient operation and better stability.

  1. Min. Torque (Nm):143

  2. Max. Torque (Nm):977

  3. Recommended Bolt Range:M14-24

  4. Accuracy:±3%

  5. Weight (with arm, kg):2.1

  6. L (mm):96

  7. H (mm):107

  8. W (mm):42

  9. R (mm):25

  10. S (mm):11

  11. A0 (mm):50

  12. AR (mm):85

  13. Drive Square:3/4"

1.Wind Power Industry: Tightening and disassembling bolts for wind turbine towers, blade connections, and large bolts inside nacelles.

2.Petrochemical Industry: High-strength bolt fastening for reactors, pressure vessels, pipeline flanges, and refining equipment.

3.Power Industry: Bolt fastening for substation equipment installation, transmission tower assembly, and generator maintenance.

4.Heavy Machinery: Bolt maintenance for mining machinery, engineering machinery (e.g., excavators, cranes), and ship engines.

5.Infrastructure & Steel Structures: Final tightening and quality inspection of high-strength bolts in bridge construction 5. building steel structures.

Frequent Questions
  • 1. How is the ±3% accuracy of this hydraulic torque wrench ensured? Does it require regular calibration?​​
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    The accuracy is achieved through precision hydraulic system design, high-quality components, and strict assembly processes. Yes, to ensure consistent torque output accuracy, it is recommended to send the tool to a professional institution or the manufacturer for calibration and verification regularly (e.g., every 5,000 cycles or annually).
  • 2. What does "special spaces" refer to in terms of application?​​
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    "Special spaces" typically refer to working conditions where space is extremely limited or the location is difficult to access. Examples include equipment-dense plants, deep pipeline interiors, or high-altitude platforms where traditional high-torque tools are difficult to maneuver. The BST hydraulic torque wrench is often equipped with various reaction arms and accessories, and its modular design allows it to adapt flexibly to these confined spaces to complete fastening tasks.
  • 3. How should I find a suitable "reaction point" when using this wrench?​​
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    Look for a solid and stable adjacent structure to serve as the reaction point, such as another bolt head, a reinforcement rib of the equipment, or a specially designed reaction ring. The design of the BST wrench makes it easier for its reaction arm to engage with these points. ​​It is crucial​​ to ensure that the selected reaction point can withstand the enormous counterforce; otherwise, it may cause the tool to slip, damage the equipment, or even lead to safety incidents.
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