The body of JH21 series mechanical press is welded with steel plate, so it is with good rigidity and stable precision.
The crankshaft is placed lengthways, so the structure is compact and the contour beautiful.
Using the combined pneumatic friction clutch and brake, so the engagement is smooth, the action agile, and the noise low.
Gear pair adopts the flooding system lubrication.
The slide block is six-face rectangle with longer guide track whose face is copper panel, so the guide precision is good.
An import hydraulic overload protector is installed in the slide block whose air pump and high pressure ring seal are imported.
In case of overload, it will restore to its original position. It is marked with high sensitivity and reliability.
For models above JH21-45, the slide blocks are fitted with lifting balance cylinders, of which the sealing ring is imported,
The electrical thick oil forced lubrication is adopted.
For the air passage is adopted the duplex safety valve.
The imported PLC is adopted for the electrical control. Thus the machine is marked with high level of safety performance
Optional devices: air-cushion device, automatic feeding device, photoelectric protection device can be adopted, and various automatic equipment many also be fitted to the machine. The press complies with relevant safety standard.
JH21 series model D power presst, the cranlshaft is fitted with a travel regulating device. Adjustment of this device allows the change of the sliding block travel to meet the specific requirements of different technological process.