What parts of the hydraulic cylinder are easy to damage?

The hydraulic cylinders comprise several components, and the performance of each component impacts the function and efficiency of the cylinder. Therefore, it is crucial to identify the parts that are prone to damage to prevent any potential harm.

Here below are the main components of hydraulic cylinder which are easily to be damaged.

1. The Hydraulic cylinder barrel

It is the chief part of a hydraulic cylinder, and it is known as hydraulic cylinder tube also. Typically, the hydraulic cylinder tube experiences cracks that originate from its inner wall and gradually propagate outward. These cracks tend to extend longitudinally or at a 40-degree angle with the cylinder wall generatrix.

2. The flange part of the cylinder.

First, lines appear on the outer surface of the cylinder flange at the transition arc, and gradually expand to the circumferential direction and the inner wall, or the crack expands to the nail hole, causing the flange to partially fall off. In some serious cases, the flange may be adjusted along the transition arc. The loop cracked and fell off.

3. The bottom of the cylinder.

First, a circular crack began to appear on the inner surface of the transition arc at the bottom of the cylinder, and gradually expanded to the outer wall, which was a crack.

4. Cavitation.

The hydraulic cylinder is also damaged due to honeycomb pitting caused by cavitation, and it is easy to cause cavitation on the inner wall of the entry hole!

5. Design reasons.

The structural size design is unreasonable, such as the flange height is too small or the flange outer diameter is too large, so that the integrated should be too high and damaged.

6. Hydraulic piston rods

The hydraulic piston rod is usually made of chrome plated bar, it is known as cylinder rod also. This part usually bears high stress, so if the mechanical properties of the chrome plated bar is not good, or if it is not properly heat treated (for example the induction hardened chrome plated bar are not hardened ), the hydraulic piston rods are easily damaged also.

The hydraulic oil cylinder comprises the main engine and control mechanism. The hydraulic press’s primary components include the hydraulic cylinder barrel, main cylinder, ejector cylinder, and liquid filling device. The power mechanism consists of a fuel tank, high-pressure pump, low-pressure control system, electric motor, and various pressure and directional valves. Typically, the hydraulic cylinder of a power hydraulic machine takes the form of a thick-walled high-pressure hydraulic cylinder tube with one open and one closed end. The hydraulic press’s cylinder structure typically comprises three parts: the cylinder bottom, flange, and middle thick-walled cylinder. The working cylinder of a hydraulic press is under heavy loads and frequent use, often experiencing premature damage due to improper design, poor manufacturing, or incorrect usage.
hydraulic cylinders


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