What are Hydraulic Cylinder Mounts?
Mounting are separate distinct components not directly related to the working operation of a cylinder. These components maybe attached directly to the body of a cylinder by welding or attached separately through the piston rod as in the case of a RodEye type of mounting.
Different mount styles have different physical strengths, however, and must be chosen carefully so that the strength of the mount matches the forces that the actuator will encounter in the application. For instance, with this in mind, some manufacturers set pressure limits for their flange mounts. Cylinder mounts must match the application so that the cylinder performance and service life expectancy are not adversely affected.
There are a host of mounting styles available with IPH
- TieRod or TieBar Mount
- Front Flange Cylinder
- Rear Flange Cylinder
- Trunnion Mount
- Rod Eye Mount
- Rear Pivot
- Front Round Flange
TieRod or TieBar MountTie Rod mounts are rods of smaller diameter which are held along the circumference of the cylinder and inserted though a front cover. Most Tierods are used in conjunction with another mounting such as a front flange. The adjoining figure shows tie rods being used along with a Front Circular flange. In this case the flange itself acts at the mounting, the tierods here are used to hold the flange in place for the hydraulic or pneumatic cylinder. sidenote – The small red cap is used to block the ports which are used to insert the medium (fluid or air) nto the cylinder used in operation.
Rear Flange MountSimilar to Front Flange, these are exactly similar to front flanges in form and function except they are used in the rear of the used and the piston rod extends towards the opposite end. In this section we discuss Hydraulic Cylinder mounting types of Trunnion, Pivot & Rod Eye used in Indian Pneumatic & Hydraulic Cylinders. A load moving through a curve requires a cylinder mount that allows the actuator to follow the load through the curve. The actuators mounting style should be designed to avoid high side load forces acting both on the piston rod as well as the mounting.
Front Flange MountFront Flange Mounts are flat plates used to mount the cylinder on a flat surface. Flanges could be circular, rectangular or square in shape. They are generally thicker than the front cover of the cylinder as they have to carry the entire weight of the cylinder if mounted horizontally. Front flanges have mounting holes which are used to mount the cylinder into position. The figure above shows a Front Flange Mounting. In this case there are no tie rods to hold the flange and the flange is held directly onto the front cover of the cylinder.
Trunnion MountingTrunnion mountings are used to swivel the cylinder across the trunnion axis using pins at both ends. In the above figure the trunnion is welded directly onto the cylinder barrel. Trunnion mounted cylinders are generally heavier as the trunnion is greater than the size of the girth of the cylinder barrel.
RodEye & Pivot Mounting
Rod Eye mounts absorb force along the centerline should be used when the actuated load travels through an arc. The cylinder swivels along the Rod Eye for movement.
Pivot Mounts are sImilar to Rod Eye except they are mounted onto the rear cover of the cylinder. Pivots are available with or without bearing depending upon need.