The machine features fine steel plates welded machine body, tempering treatment (or vibration relief), shot blasting, rigidness, accuracy and stability.
Vertical located crank shaft, compact structure; the crank shaft undergoes grinding treatment after high frequency quenching, which has a good smooth finish and rotates flexibly; lengthened rectangle hex guideway with a surface of bronze plate, which has high guide accuracy.
Pneumatic dual balance cylinder, balanced sliding block and punch weight, which reduce impact and noise, eliminate the clearance between connecting rod and sliding block, reduce the impact and wear of the stress parts. The whole machine adopt PLC centralized control, the gas circuits adopt imported safety dual valve, which can achieve jog, inch, single and continuous punching; the key parts such as sliding block, guideways, worktable plate, connecting rod, and are all castings made of resin sand, which improved the surface roughness 1-2 level, and improve the size accuracy 2-3 level.
The 60T-level machines adopt the electrical control device to adjust the die height. Fine configuration, the key parts like pneumatic components, electrical components, sealing parts, buttons and etc all adopt imported parts. There are optional dry or wet friction clutch, and optional hydraulic overload protection device or press-down type safety device, all of them can be equipped with automatic lubrication, photoelectric protection, frequency conversion and speed control, air blowing device and etc according to customer needs.

J21 series is versatile fixed worktable crank shaft press machine. Among which, the J21-125T is the upgrade product for J23-125T, it adopt one-piece casting machine body, non-inclinable, helical gear transmission, and rigid clutch.
J21Z-125T,J21Z-160T, and JD21-200T all adopt dry friction clutch which can stop the slider at any place immediately, and at the meantime achieve the single, jog or continuous punching operation, which is convenient to adjust the die position at any time, thus improve the machining precision. The whole machine adopts imported PLC centralized control system and equipped with safety dual valve and balance cylinder, which make it work smoothly and reliably. It can also be equipped with photoelectric protection device, it is a safety type press machine.

J23-25 open type inclinable press machine is the first to adopt rolling bearing rather than the commonly used sliding bearing��copper bearing��for the transmission gear, which make the transmission gear more wear-resistant and avoid loud noises of gears caused by the quick worn copper bearing.
J23-35 open type inclinable press machine is unique in the industry. Other 35T press machines produced by other manufacturers in the country all adopt a machine body of the 25T machine and copper bearing for the transmission gear. We are the only manufacturer that redesigns the machine body, the 35T machine body is far more heavier than the 25T machine body, and the strength is also better, with the rolling bearing transmission (low gear noise), which equal to the light 40T press machine.
The 80T-level press machine all adopt the structure of pneumatic dual balance cylinder, which has small fluctuate of the balance force and it balances the slider and the die, which prevent the lathe from being unstable. And it can also avoid the clash and noise caused by the converse stress of gears in transmission, eliminate the clearance between connecting rod and slider, reduce the compact and wear of stress parts, and avoid accidents caused by the falling of slider when the brake fails or the connecting rod ruptures.