![]() ![]() ![]() Selecting the proper flange depends in part on whether the major force applied by the load will result in compression (push) or tension (pull) stresses to the piston rod. Three types of flange mounting styles at each end of the cylinder are the head (rod end) or cap rectangular flange, head or cap square flange, and rectangular head or cap. Never pin both ends.įlange mounts are also considered to be fixed-centerline mounting styles and are among the best mounts for use on straight-line, force-transfer applications. For tension loads, pin both lugs at the rod end. For thrust loads, pin both lugs at the cap end. When used at high pressure or when subject to shock loading, the lugs should be dowel pinned to the machine surface. The mounting lugs hold the cylinder in place while friction between the lug underside and the machine surface on which it rests prevents the cylinder from moving laterally. While considered to be one of the best mounting styles, extended tie-rod mounts often are passed over by designers.Ĭenterline lug mounts are another style of fixed mounts. The rods are designed to withstand maximum internal rated pressure, so this mounting style can handle thrust or tension forces at full rated pressure. Because they are symmetrical, any thrust or tension forces on the piston rod are uniformly distributed about the cylinder centerline. Fixed mounts that absorb force along the cylinder centerline, including extended tie rod, centerline lug, and flange mounts, should be used whenever possible.Įxtended tie-rod mounts are available at the rod or cap end of the cylinder. The best way to support a cylinder is along its centerline. Too often designers overlook simple but important steps - such as specifying the mounting style that best suits the cylinder and its installation.Ĭylinder mounting styles fall into three major groups. Yet this type of failure can be minimized by selecting the correct cylinder and installing it properly. By far the major cause of premature cylinder failure is side-loading away from the cylinder centerline which wears the bearings and seals. In a perfect world, cylinders would align exactly with their loads, but that’s often not the case. Cylinder mounting styles fall into three basic groups. But if applied improperly, a cylinder in short order may not only ruin itself but also the equipment on which it is installed. Properly applied pneumatic and hydraulic cylinders provide outstanding linear-actuation performance in a wide variety of applications. This file type includes high resolution graphics and schematics when applicable. ![]()
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