I believe that you have also encountered the problem that the same product hydraulic cutting machine suddenly cut, today Honggang cutting machine will give you analysis to solve this problem.
The hydraulic cutting machine has insufficient punching force: there are three reasons.
1 the hydraulic system pressure drops, the hydraulic system pressure drops in addition to the "fault", but also due to the high pressure relief valve pressure setting is low or malfunction, the method of troubleshooting is to clean the valve body and its internal parts to eliminate the blockage If necessary, replace the new valve. The pressure gauge must be connected to the working pressure when reinstalling the relief valve.
2, the oil tank oil leakage is serious, the oil leakage of the oil cylinder has two kinds of internal leakage and external leakage, that is, the inner ring leakage caused by the damage of the sealing ring of the oil cylinder, resulting in a decrease in the punching force, and the trouble of replacing the sealing member can be eliminated.
3. The pressure relay is turned on in advance to make the punch return prematurely. The pressure relay or the delay device pushes the cylinder forward through the electromagnetic reversing valve to make the punch return early, without punching force on the die, causing suspected punching force. Insufficient, independent of the hydraulic system. As long as the delay knob is adjusted accurately or a new high-precision time delay relay is replaced, the fault of the punching force can be eliminated.
