RSM Series hydraulic jacks are smaller, may have a greater ability to work, particularly in the spatial location of the narrow places, and has a light and flexible, the top force and other functions, the product is widely used in electric power, chemical, steel, bridges, machinery and other enterprises, and to play its infinite power. Today Xiaobian to introduce the four leading causes damage to hydraulic jacks, concrete and small series a look. First, poor quality seal. Seals unreasonable structure design, poor materials, manufacturing process and accuracy, the mold is defective, trimming defects cause damage to two hydraulic jacks, storage, transportation and maintenance reasons. Storage overflow, humidity improper erosion by oxygen and ozone, stacking conditions inappropriate and improper maintenance of hydraulic jacks damage. Third, parts manufacturing and assembly quality is poor. Parts of the machining accuracy and surface roughness does not meet the requirements, the processing method is unreasonable, the seal when installing the threaded through the top of the sharp edge, since the damage unprotected hydraulic jacks cause damage to the lip. Fourth, the accessories are designed structure is irrational. Optional seals can not meet the working pressure, speed and temperature requirements, and the oil medium, environmental conditions are incompatible seal groove design installed improperly, the gap with the amount of compression choice is unreasonable, and does not pay attention to anti-corrosion, vibration, pressure equalizing grooming, etc., are spouses piece design structure is irrational, the use of hydraulic jacks cause damage. More about hydraulic jacks, please login http://www.jstzhl.com/ inspection.