Now is the coldest weather not only in China, but in the northern hemisphere (except the equator areas).

Hydraulic plate punching machine has inadequate punching force after long term usage. You may check the high pressure, oil leakage of oil cylinder, pressure valve. But it doesn’t help, ever considered the reason of LOW TEMPERATURE?

In cold weather, the hydraulic station viscosity becomes dense, besides, after long term usage, lubricity and abrasion resistance can’t meet processing demands, on oil tank bottom deposit some oil sludge.

All these factors may directly influence on punching force. So in this case, preheat is important, what’s more, operate according to procedures, timely change hydraulic oil can also make better use of the efficiency of the equipment.