Semi Automatic CNC Tandem Press Brake Hydraulic 650 Ton Synchro
 

Features:

1. Overall welded and processed structure.
2. Closed loop control mode composed of electric-hydraulic servo valve and measure ruler.
3. Ensure the highest control precision, bending accuracy and repositioning accuracy are

also reach to the highest level.
4. Back gauge mechanism can be multi-axes controlled.
5. Integrated hydraulic system decrease the pipe connections, oil leakage, and increase the

stability and overall beautifies.
6. Worktable equipped with hydraulic and mechanical compensation to avoid the deformed

upper beam from affecting the quality of the work piece, it is adjusted automatically by the

CNC controller with convenient and accuracy.
7. CNC controller normally uses Holland DELEM, Italy ESA, Swiss CYBELEC, all with

multi-languages.
 
Description:

1. The frame of machine is composed of tank, worktable, left and right housings and
RAM. So it has high strength and good rigidity. Also it takes vibration to eliminate
Stress.
2. Synchronization working principal of both machines: Adopting electric-hydraulic
Proportional valve to ensure the synchronization of both machines. The proportional

valve is made by BOSCH company with very good performance such as small friction

between mechanic action pairs, fine electronic amplifier and electric magnet with high

controlling force and continuous action. There are two raster displayers on both sides

of machine to inspect the position of RAM continuously and feed back the signal to

control system, then the control system will control electric-hydraulic valve to make

two cylinders synchronization on one machine. Because the raster displayers are

installed to "C" plates, not on housing

plates directly, the deflection of RAM and frame when working will not effect its measuring

and controlling precision. When two machines working together, the differential potentio

meter installed between two machines will transfer the mechanic synchronizing signal

into electronic one and feed back to synchronization plate and control system.

The signal will be enlarged by BOSCH amplifier to control the synchronization of

both machines by controlling electric-hydraulic proportional valve. So the

synchronization of two machines is achieved with high precision.
3. Through computer, the operator could communicate with machine. The computer has

several service language, calculate and adjust the bending force automatically. Also it could