Is usually made of 45 steel cylinder piston rod.
Have a larger impact, heavy load transmission, made of 40 cr steel.
This is to ensure that the oil cylinder piston rod has enough working strength.
Oil cylinder piston rod is generally designed cylinder, if the diameter is larger, can use hollow piston rod.
Made of 45 # seamless steel pipe.
When oil cylinder piston rod manufacturing, blank should be conditioning treatment after forging, mechanical rough machining, hardness HB = 230 ~ 250.
The purpose is to improve the machining performance and increase working strength of the material.
After finishing the oil cylinder piston rod surface roughness Ra should not be greater than zero.
In order to improve the corrosion resistance of oil cylinder piston rod, the rod of the surface of the work can be hard chrome plating.
The oil cylinder piston rod and guide sleeve on the end cover using H8 / f9 to cooperate.