Bolt Stretcher

/Bolt Stretcher

Fault Analysis of Hydraulic Stretcher

Fault analysis of hydraulic stretcher 1. Oil leakage of hydraulic tensioner Main causes: wear or aging of the upper and lower sealing rings; The bleed screw is not tightened or damaged; During operation, the lift of the hydraulic stretcher exceeds the maximum lifting height. Measures: replace the sealing ring; Tighten or replace the bleed screw; [...]

By |February 14th, 2022|Bolt Stretcher, Hydraulic Bolt Tensioner, Hydraulic Tools, News|Comments Off on Fault Analysis of Hydraulic Stretcher

The Difference between Bolt Stretcher and Hydraulic Wrench

It's the same equipment for removing bolts. What's the difference between bolt stretcher and hydraulic wrench? Bolt stretcher and hydraulic wrench are important tools for fastening bolts. They are frequently used in construction, maintenance and repair of shipbuilding, petrochemical, construction, power, mining, metallurgy and other industries. They are very important equipment for the installation and [...]

By |June 2nd, 2020|Bolt Stretcher, Driving Hydraulic Torque Wrench, Hollow Hydraulic Wrench, Hydraulic Bolt Tensioner, Hydraulic Torque Wrench, News|Comments Off on The Difference between Bolt Stretcher and Hydraulic Wrench

About Hydraulic Bolt Stretcher

About hydraulic bolt stretcher, also called hydraulic nut, is an advanced bolt assembly method, especially suitable for fastening of narrow space and heavy-duty vibration machinery. Its main components include sliding piston, oil cylinder, support ring, sealing ring, air release screw and quick joint, etc. The working principle of the hydraulic bolt stretcher is that the [...]

By |May 27th, 2020|Bolt Stretcher, Hydraulic Bolt Tensioner, News|Comments Off on About Hydraulic Bolt Stretcher

How to Choose Bolt Stretcher

To choose bolt stretcher depends on the stretching mode first, the required pretightening force Kn, and then the torque mode, and the required tightening torque Nm. Bolt stretching is to use hydraulic cylinder to exert external force on the bolt end, stretch the bolt to the required length, and then tighten the nut, so that [...]

By |May 5th, 2020|Bolt Stretcher, Hydraulic Bolt Tensioner, News|Comments Off on How to Choose Bolt Stretcher