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Features of bolt tensioner
The bolt tensioner uses pure tension to directly extend the bolt, without torsion shear and lateral force, and no friction damage to the contact surface of the connection. It is the best method to accurately control the bolt pre-tightening force. (Guide: Calculation and Tolerance of Small Diameter of Internal Thread)
Compared with hydraulic torque wrenches, bolt tensioners have the advantages of rapid response, accuracy, no torsional stress, no frictional damage, and simultaneous pre-tightening of multiple bolts; therefore, bolt tensioners require more pre-tightening force. Strict occasions are more widely used. The disadvantage is that it requires sufficient elongation, so it is greatly restricted in applications where the axial space is narrow.
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One-stop manufacturer for all kind of stamping products and CNC lathed products.