Cylinder is pressurized cylinder body, and its general use within the hole boring, reaming, honing, such as precision machining or rolling process, the requirements of surface roughness in the 0.1 ~ 0.4μm, so that the piston and seals, bearing parts can be smooth sliding, thus ensuring the sealing effect, reducing wear and tear; cylinder liquid to be under great pressure, therefore, should have sufficient strength and stiffness. Mounted on both ends of the cylinder cover, and cylinder form a closed oil chamber, the same fluid under great pressure, therefore, cover and connectors should have sufficient strength. Have to consider the strength of the design, but also a good selection of process of the structure. On the piston rod or plunger guide sleeve from the guide and supporting role, and some no-oriented sets of hydraulic cylinder, driven directly by end cap holes, this structure is simple, but the cover must be replaced after wear and tear. Cylinder, end caps and the guide sleeve of material selection and technical requirements can refer to "Hydraulic Engineering Handbook."
(This article reproduced from http://www.dgybl.net)