As professional metal forming machine manufacturer and supplier, we provide HPS series press brakes. These bending machines can offer optimal accuracy with electric-hydraulic servo system and advanced CNC machine. The bending process can be set according to customers’ requirements. The non-corrosive surface allows much less maintenance for the press brakes. Special materials will be packed together to avoid possible damage during delivery. Our company offer excellent after-sale service and could help you know all the affecting factors to obtain the optimal bending process and accurate bending results.
Linear encoders for ram position measuring contribute to optimal accuracy.
Two linear encoders (Y1-Y2) are set on two sides of the press brakes, which are used to measure the exact distance between the ram and worktable. The encoders are connected to the table so as to prevent deformation of the side frames from affecting positioning. In addition, the obtained data is immediately sent to the control system for calculation and then the servo valves receive the corresponding control signal. CNC system is used to rectify two servo calves in case of any error. Also, it always ensures the parallel state between the ram and worktable of the bending machine.
CNC crowning is set on worktable of the press brakes with double wedges moving relatively to ensure accurate bending compensation. After parameters such as sheet thickness, sheet length, die opening and tensile strength data are conveyed to control system, force and related crowning compensation value are automatically determined. It’s better to add preloading process to each bending process.
(4) CNC controller DA52.
Name Supplier Origin
Seal MERKEL or NOK Germany or Japan
Hydraulic valve unit BOSCH Germany
Linear encoder HEIDENHAIN Germany
Servo motor and servo dirve ESTUN China
Oil pump NACHI Japan
CNC system DELEM or CYBELEC Holland or Switzerland
|Width of table||mm||140||180||180||180||180||250||250||300|
|Volume of oil tank||L||180||320||320||350||400||700||700||900|
|Traven in X axis||mm||600||600||600||600||600||600||600||600|
|Lenght of machine||mm||2185||3320||3320||3320||3320||3500||4450||4600|
|Width of machine||mm||1450||1660||1700||1750||1900||2000||2200||2500|
|Height of machine||mm||2275||2500||2500||2500||3200||3700||3800||4250|