Why does the pressure of four-column hydraulic press decrease

The operator of the four-column hydraulic press has mastered some basic troubleshooting capabilities, so that production can be quickly resumed, or the fault can be eliminated in the bud, sometimes the experienced master is able to test the experience of personal operation to judge the general cause of the fault, and sometimes you can also understand the general situation by looking at the method of sniffing and so on

Do not worry about the failure of the hydraulic press, first look at the actual situation of the hydraulic system, pressure, speed, vibration, etc., listen to the sound, whether there is impact sound, noise, etc., to judge the anomaly, since the four-column hydraulic press pressure failure is mentioned, small series below will be introduced in detail; The working state of the moving parts of the four-column hydraulic press can be judged by touch, temperature rise, tightness of the joint, etc. The operator should be familiar with the performance characteristics of the hydraulic press and scientifically solve the problem according to the specific situation of the fault.

The reason for the pressure reduction of the four-column hydraulic press is not complicated, the spring of the regulating valve becomes loose and aging, and there is no change after pressure, long-term wear and leak lead to unable to lift the pressure, the hydraulic pump of the hydraulic press appears to wear and leak, the four-column hydraulic oil temperature is too high, the hydraulic oil becomes very thin, and the high pressure cannot be lifted; The use of a long time without regular maintenance, resulting in the cylinder piston head seal ring aging, solenoid valve spool wear, leakage pressure is not good; There are leaks in the hydraulic pipeline, cylinder solder joints and piston rod seals of the four-column hydraulic press, and there may be insufficient oil level of the tank, and the pressure reduction phenomenon of the oil filter suction.

Therefore, regular maintenance of four-column hydraulic press is still very necessary, which can effectively reduce the incidence of failure, maintenance work is not just talk, hydraulic system, hydraulic pump, sealing components, etc., should be regularly checked and cleaned, there is no custom maintenance, such as failure is very delayed production efficiency.