The middle part of cylinder block and piston rod should be provided with support to prevent the downward bending of self-weight.
2. The sealing ring of the cylinder of the plastic granulator should not be too tight, especially the o-ring. If it is too tight, the movement resistance of the piston rod will increase.
The center line of the cylinder should be concentric with the action line of the load force, so as to avoid causing the normal force, otherwise the sealing body or piston will wear easily.
4 wear and die.
Before installing the plastic granulator, it is necessary to carefully check the processing quality of the axle end, hole lock, etc., chamfer and remove burrs, and then clean and blow dry with kerosene or gasoline.
When the plastic granulator has large travel and high ambient temperature, the cylinder can only be fixed at one end, while the other end keeps free expansion, so as to prevent the cylinder from deformation caused by thermal expansion.
7 the sliding surface between the installation surface and the piston should be kept at a certain degree of parallelism and perpendicularity.