durmapress

J21s-80 above products are equipped with lift balancing cylinder, balancing the weight of the slider, the upper die itself, can prevent the transmission system reverse force caused by the phenomenon of leading, so that the movement is very stable, can avoid and eliminate the gap between the connecting rod and the slider, reduce the impact and wear of the stressed parts, prolong the service life of parts, It can prevent the slide block from falling due to brake failure or… Leer Más "Power Press machine adopts special cast iron alloy with high rigidity and shock resistance

E21 press brake failure causes and solutions - sometimes the main motor automatically stop, heat relay, circuit breaker protection E21 press brake failure reasons: 1. Proportional pressure valve and main pressure reducing valve are stuck, and the machine has been pressurized; 2. The filter element is blocked, the oil output is not smooth, and the oil pump pressure is always high; 3. The oil has been polluted for too long time; 4. Poor oil quality; 5, circuit breaker, heat relay… Leer Más "E21 press brake failure causes and solutions - sometimes the main motor automatically stop, heat relay, circuit breaker protection

Bending machine failure reasons and solutions - slide block can not fast down Bending machine failure reasons: 1. The slider guide rail is too tight; 2, the rear retaining shaft is not in place; 3, the slider is no longer on the dead point position; 4. Pedal switch and other signals do not enter the module; 5, proportional servo valve failure; 1. The slider guide rail is too tight; 2, the rear retaining shaft is not in place; 3, the… Leer Más "Bending machine failure reasons and solutions - slide block can not fast down

Fault one: no pressure in hydraulic system 30t hydraulic press brake . 1. Whether the solenoid coil of the proportional relief valve is energized and whether the voltage of the proportional solenoid coil meets the requirements. For the above reasons, please check the related electrical reasons. 2. Check whether the cartridge valve is jammed or the main spool is jammed, and the damping hole is blocked. If it is for the above reasons, please remove the overflow valve, clean it,… Leer Más "How to solve the common faults of 30t hydraulic press brake

Bending press brake machine by the fuselage, torsion shaft, slider, stroke adjustment, front supporting frame, rear retaining frame, mold, hydraulic system, electrical system and other nine parts. In the use of hydraulic bending machine by wire on the coil electricity, electricity on the pressure plate to produce gravity, so as to achieve the clamping plate and base between the thin plate. Hydraulic bending machine operation 5000 hours to carry out secondary maintenance, maintenance workers mainly, operator workers to participate in,… Leer Más "bending press brake machine secondary maintenance matters needing attention