Telescopic cylinders are a special design of a hydraulic cylinder or pneumatic cylinder which provide an exceptionally long output travel from a very compact retracted length.
Telescopic cylinders are available in single acting, a single acting / double acting combination, or a double acting design. A double acting Telescopic cylinder is a more complex design and involves additional sealing within the internal body of the cylinder to seal off the different stages.
Although the price of a seal is relatively inexpensive, choosing the wrong seal / material for use in a telescopic cylinder can prove costly should it fail. The financial costs of loss of production, engineer downtime and / or calling in engineers can soon add up. It’s for these reasons that it’s important to ensure you select a high quality seal that is the right material.
We supply a range of Rod seals for use in one piece gland that are specifically designed for sealing in telescopic cylinders. The double-lip seals secure and aid efficient lubrication for each pull-out and protect the cylinder. The unique sealing system offers less friction and ensures a longer life-cycle.
Each set consists of two elements:
• Nitrile (NBR) 80 shore and NBR impregnated fabric sealing element.
• Polyelastomer header ring.
Heavy duty polyurethane wiper seal to accompany rod seal.
We offer these seals in both Inch and Metric sizes.