The hydraulic baler uses the principle of hydraulic transmission to pressurize under strong pressure. Generally, the hydraulic baler does not make a lot of noise during operation, but the hydraulic baler is prone to noise when there is a problem. So what are the sources of noise in the hydraulic baler? Next, Nick Machinery will explain it. I hope it can be helpful to everyone.

1. Safety valve

1. Air is mixed into the oil, cavitation occurs in the front chamber of the safety valve, and high-frequency noise is generated.

2. The bypass valve wears too much during use and cannot be opened frequently, so that the needle valve cone cannot be closely aligned with the valve seat, resulting in unstable pilot flow, large pressure fluctuations, and increased noise.

3. Due to the fatigue deformation of the spring, the pressure control function of the safety valve is unstable, which makes the pressure fluctuate too much and generates noise.

2. Hydraulic pump

1. When the hydraulic baler is running, the mixture of hydraulic pump oil and air can easily cause cavitation in the high-pressure range, and then it propagates in the form of pressure waves, causing the oil to vibrate and generating cavitation noise in the system.

2. Excessive wear of the internal components of the hydraulic pump, such as cylinder block, plunger pump valve plate, plunger, plunger hole and other related parts, resulting in serious leakage in the hydraulic pump. The flow is pulsating and the noise is loud.

3. When the hydraulic pump valve plate is in use, due to surface wear or sludge deposits in the overflow groove, the overflow groove will be shortened, the discharge position will be changed, resulting in oil accumulation and increased noise.

3. Hydraulic cylinder

1. When the hydraulic baler is running, if the air is mixed into the oil or the air in the hydraulic cylinder is not completely released, the high pressure will cause cavitation and produce a lot of noise.

2. The cylinder head seal is pulled or the piston rod is bent, and noise will be generated during operation.

The above three points are all about the reasons why hydraulic balers are prone to noise failures. If you have other questions, you can consult them on the website of Nick Machinery: https://www.nkbaler.com