What aspects should be paid attention to when buying cylinder?

Cylinders are executed in the pneumatic system components, cylinder quality will directly affect the performance of the form a complete set of equipment, so which aspects should be paid attention to when buying cylinder? 。 Select manufacturers high-profile brand, quality and service reputation better. 。 Check cylinder standards adopted by the enterprise production, thus enterprise standard, should be compared with the industry standard. 。 Appearance, internal and external leakage of cylinder and no-load performance investigation: a. Appearance: the surface of the cylinder cylinder and piston rod should be no scratches, end cover pore-free and trachoma. b。 Internal and external leakage, in addition to the cylinder rod end there is no external leaks, internal leakage and out of the rod end leakage should be less than ( +. D） Ml/min and ( +. d) ml/min。 c。 No-load performance: the cylinder is in the no load state, make its are in a low speed running, see what is the speed of its no creeping, the lower the speed, the better. 。 Pay attention to the installation of the cylinder form and size, the size of the installation in order to the manufacturer, generally there is no spot, non-standard cylinder adopt standard as far as possible, so that we can shorten the time of delivery