What is the reason why the four-column hydraulic press does not return

The main reasons why the four-column hydraulic press does not return include the following ‌ :

‌ hydraulic system failure ‌ : Abnormal hydraulic system is one of the common reasons for the four-column hydraulic press not to return. The problem may involve pipe leaks, high or low system oil temperature, air bubbles, or pollutants. Check the key indicators of the hydraulic system such as oil temperature, hydraulic pressure and oil level to determine whether there is a system anomaly, and repair or replace the relevant parts in time. ‌

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‌ mechanical component failure ‌ : The four-column hydraulic press is composed of a number of key mechanical components, such as indenter, guide rod, spring, etc. Damage to these components may result in no return trip. For example, the indenter may become stuck, deformed, or worn, and the guide rod may swing or break. In the case of confirming that there is no abnormality in the hydraulic system, if the fault is due to the damage of the mechanical parts, repair or replacement of the relevant parts should be arranged quickly.

‌ indenter operation error ‌ : in the indenter machining process, due to the workpiece deformation or improper clamping and other reasons, may lead to the indenter movement error, and then cause the pressure does not return. The probability of error can be reduced by optimizing the process flow and adjusting the workpiece clamping method.

‌ Improper process parameter setting ‌ : Improper process parameter setting may also lead to non-return of pressure. For example, setting the process too fast or the process pressure too high may cause the switch to limit or exceed the pressure chain limit. Appropriate adjustments should be made according to the specific process requirements and equipment parameters to ensure that the process parameters are set reasonably.

‌ electromagnetic reversing valve failure ‌ : electromagnetic reversing valve failure may cause the hydraulic press does not return. ‌

‌ main pressure valve barrier ‌ : the main pressure valve barrier is also a reason for the hydraulic press not to return.

‌ electrical failure ‌ : Electrical problems, such as faulty stroke switches or support components, may also cause the hydraulic press not to return.

‌ pressure sensor failure ‌ : Pressure sensor failure may also cause the hydraulic press not to return.

‌ Solutions to the problem of non-return of four-column hydraulic presses include ‌ :

Check the various indicators of the hydraulic system, such as oil temperature, hydraulic pressure and oil level, to determine whether the system has failed, and repair or replace the relevant parts in time.

Optimize the process flow, adjust the workpiece clamping mode, reduce the error.

Adjust the process parameter Settings appropriately according to the specific process requirements and equipment parameters.