Hydraulic torque wrenches classification
Hydraulic torque wrenches have driven hydraulic wrench and hollow hydraulic wrench two series. As the name suggests, the drive hydraulic torque wrenches are driven by the drive shaft corresponding specifications impact socket set to achieve preload nut, lower torque range as long as the circumstances permit, according to replace the corresponding sleeve high strength bolts to complete different specifications for general purpose hydraulic wrenches, a wider scope. Hollow hydraulic torque wrench is equipped with a transition sleeve use. Generally screw sticking out a long, relatively small spatial extent, double nut, bolt spacing is too small, nut and equipment wall is too small, or more difficult conditions some specific industries.