One of the major benefits of using a telescopic cylinder is that it can produce a large stroke with a relatively small installation length. This type of cylinder is made up of multiple cylinders built inside each other. A quality provider of hydraulic cylinders can easily custom manufacture cylinders that meet your unique requirements.
What is a Telescopic Cylinder?
The series of multiple nested cylinders, or steel tubes, located inside a telescopic cylinder are of progressively smaller diameters. This unique design allows for excellent travel from a very compact retracted length. The fact that these types of cylinders can effortlessly extend from minimally retracted sizes makes these cylinders perfect for applications where constraints related to space prevent one from using a conventional single-stage cylinder.
Core Parts
The biggest diameter section in telescopic cylinders is known as the barrel or main. Meanwhile, the sections with smaller diameters are known as stages, and the smallest of these stages is known as a plunger. The maximum number of stages that move appears to be six. Cylinders with over six stages could theoretically be designed, but this would pose a serious stability problem.
These cylinders typically extend from the biggest stage to the tiniest one. Thus, the biggest stage moves first and completes its stroke before the very next stage starts to move. This procedure continues for all states until the stage with the smallest diameter is completely extended. In the same way, the stage with the smallest diameter will move first when retracting takes place, and this continues until every stage is nested back into the cylinder’s main.
Features
Leading manufacturers of hydraulic cylinders can create telescopic cylinders in two different mounting styles: cross tube mounts and trunnion mounts. Cylinders can also be manufactured in various strokes and multiple bore sizes. The cylinders are created for high operating pressures – for example, 2,500 PSI – and feature a re-buildable construction as well as adjustable vee packings that are high in quality. The stages are also hard chrome plated. With the right company’s assistance, you can get the exact cylinders you need for your application in a timely fashion.
