Excavators are incredibly versatile pieces of equipment, used for a variety of purposes. Many rely on the use of arm cylinders for efficient and effective operation. In this article, we will discuss the basics of arm cylinders, as well as how to use them for optimal excavator performance.

Types Of Multi-stage Hydraulic Cylinders

Multi-stage hydraulic cylinders are divided into two categories: single-acting and double-acting cylinders.

Single-acting cylinder

It is the more common type of both. It is so named because manufacturing allows it to exert pressure outward in one direction. However, when the withdrawal time comes, it must use other external mechanisms to restore it to its original state.

An example of using a single-acting cylinder is a garbage truck. This is because after the material bed is lifted to a certain degree and dumped, the cylinder is pulled back to its original position by gravity.

As for the double-acting cylinder

They need to use the hydraulic system to retract and extend when gravity cannot help the telescopic cylinder retract. An example of horizontal forces that need to be applied is the recycling plant, in which garbage needs to be compressed into smaller units by the forces acting on both sides. Here, a double-acting cylinder is required to push and pull the device on the horizontal plane.

The extensibility of multi-stage hydraulic cylinder makes it suitable for situations with limited operation area and the need to exert more force on a longer length. In addition, it can lift many tons of weight, making the multi-stage hydraulic cylinder a perfect tool for garbage and dump trucks, recycling and underground mining.

Multi-stage hydraulic cylinder or telescopic hydraulic cylinder is a recent innovation that enables us to customize and enhance the application of various types of machinery. They are used in a wide range of applications, including planting, construction and civil engineering.

Advantages Of Multi-Stage Hydraulic Cylinders

Let’s take a look at the benefits and applications of multistage hydraulic cylinders. The main advantage of multistage hydraulic cylinder is its shaft extension ability. Compared with other hydraulic cylinders, its stroke is longer.

It consists of various tubular rods called sleeves. These sleeves (usually five or six) gradually decrease in diameter and are nested together. Once the pressure is pumped into the cylinder, the largest casing (also known as barrel or main casing) is first extended. This is followed by the subsequent sleeve until the last sleeve (called plunger) reaches its maximum extension.