Which Parts of the Hydraulic Cylinder Are Prone to Damage?

Hydraulic Cylinders are made up of many different parts, and the performance of each part affects the function and efficiency of the hydraulic cylinder. Therefore, it is important to understand which parts of the hydraulic cylinder are prone to damage so that we can take measures to prevent damage from occurring.

Hydraulic Support

1. Hydraulic Cylinder Barrel

This is the main part of the hydraulic cylinder, also known as the hydraulic cylinder barrel. Generally, cracks appear on the inner wall of the hydraulic cylinder barrel and gradually develop outward. The cracks develop outward in a linear manner. The cracks are mostly distributed longitudinally or at a 40-degree angle to the cylinder wall generatrix.

2. Cylinder Flange

First, at the transition arc, cracks appear on the outer surface of the Cylinder Flange and gradually expand in the circumferential direction and the inner wall, or the cracks expand to the nail hole, causing the flange to partially fall off. In severe cases, the flange adjustment ring may crack and fall off along the transition arc.

Hydraulic Flange

3. Cylinder Base

First, annular cracks begin to appear on the inner surface of the transition arc at the bottom of the cylinder and gradually expand to the outer wall. This is a crack.

4. Cavitation

Hydraulic cylinders can also be damaged by honeycomb pitting caused by cavitation, and it is easy to cause cavitation on the inner wall of the inlet hole!

Hydraulic Cylinder Structure Diagram

5. Design Reasons

The structural dimensions are not designed properly, such as the flange height is too small or the flange outer diameter is too large, which makes the weight of the integrated part too high and damages it.

6. Hydraulic Piston Rod

The Hydraulic Piston Rod is usually made of chrome-plated rod, also known as cylinder rod. This part is usually subjected to high stress. Therefore, if the mechanical properties of the chrome-plated rod are poor, or the heat treatment is improper (for example, the induction hardening chrome-plated rod is not hardened), the hydraulic piston rod is also easy to be damaged.

Summary

The hydraulic cylinder consists of two parts: the main machine and the operating mechanism. The main parts of the hydraulic press include the hydraulic cylinder barrel, the main cylinder, the ejector cylinder and the hydraulic filling device. The power mechanism consists of a fuel tank, a high-pressure pump, a low-pressure control system, an electric motor, and different pressure valves and directional valves. The hydraulic cylinder of the power hydraulic press is generally in the form of a thick-walled high-pressure hydraulic cylinder barrel with one end open and the other end closed. The structure of the hydraulic cylinder of the hydraulic press can generally be divided into three parts: the cylinder bottom, the flange and the middle thick-walled cylinder. The hydraulic press working cylinder has a large load and works frequently, and is often damaged prematurely due to improper design, poor manufacturing or improper use.