Hydraulic stretchers are widely used in industries such as shipbuilding, steel, petrochemicals, and power. Applied to the fixed value tightening and dismantling of various specifications of bolts, achieving precise predetermined loads and enabling simultaneous tightening of multiple bolts.
Working principle: The hydraulic cylinder is used to directly apply external force to the bolt, causing it to be axially stretched to the required amount in the elastic deformation zone, thereby making the nut easy to loosen.
The HLP series ordinary hydraulic stretcher is suitable for stretching single specification bolts, with light weight and high accuracy. Small size and compact structure. The standard working pressure is 150Mpa.