Four-column hydraulic press rise slowly what happened?

The main reasons for the slow rise of the four-column hydraulic press include the following ‌ :

‌ Oil temperature is too low ‌

Too low oil temperature will cause the viscosity of the hydraulic oil to increase, thus affecting the moving speed of the hydraulic cylinder, even if the hydraulic system is working normally, it will slow down the lifting speed. ‌

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‌ oil pollution ‌

Small impurities in the hydraulic oil will cause the hydraulic press to rise slowly or stagnate, which will lead to equipment failure in serious cases.

‌ Low main pump pressure ‌

The low pressure of the main pump will lead to insufficient hydraulic oil flow, which will affect the rise speed of the four-column hydraulic press. The low pressure of the main pump may be due to the main pump itself or the blockage of the oil circuit.

‌ hydraulic cylinder seal is damaged ‌

Wear or aging of seals can lead to increased internal leakage of hydraulic cylinders, which in turn slows down the lifting speed.

‌ high pressure pump flow is too low ‌

If the flow of the high pressure pump is adjusted too small, it will also cause the hydraulic press to rise slowly. ‌

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‌ pump worn or burned ‌

Damage to the pump will cause the hydraulic system to not work properly, which will affect the rise rate.

‌ Solutions to the slow rise of a four-column hydraulic press include ‌ :

‌ Increase the oil temperature ‌

Increase the oil temperature to a suitable range by heating equipment, but be careful not to over-heat.

‌ Replace the hydraulic oil ‌

Regular replacement of clean hydraulic oil can effectively remove oil pollutants and prevent the impact on the hydraulic press.

‌ Repair or replace main pump ‌

If the main pump is damaged or the pressure is too low, it needs to be repaired or replaced in time, and check whether the oil circuit is normal.

‌ Replace the hydraulic cylinder seal ‌

: If the seal is damaged, it needs to be replaced in time, and select the same type and specification of the original seal.

‌ Adjust the high-pressure pump flow ‌

At 25MPa, the pump eccentricity can be adjusted to 5 bars to increase the flow rate.

‌ Replace pump element ‌

: If the pump is worn or burned, the relevant components need to be replaced.

‌ Preventive maintenance measures and daily maintenance suggestions ‌ :

‌ Check and replace hydraulic oil ‌ regularly

Keep the hydraulic oil clean and appropriate temperature, which can effectively extend the life of the equipment.

‌ Regularly maintain main pump and hydraulic cylinder seals ‌

Regular inspection and replacement of worn seals and main pumps to ensure the normal operation of the hydraulic system.

‌ Avoid pollution and overheating ‌

Keep the hydraulic system clean, prevent contamination and overheating, and ensure that the hydraulic system is in good working condition