The cnc hydraulic press brake bending machine is a device that uses an electro-hydraulic servo system to control the synchronization of dual cylinders and cooperates with a high-precision grating ruler to form a fully closed-loop control. This bending machine not only has high precision and high repeatability positioning accuracy, but also has a fully functional back gauge mechanism and CNC cylinder deflection automatic compensation system, which can overcome the influence of slider deformation on workpiece quality during work, and ensure good straightness and bending angle of the processed workpiece.
WORKING PRINCIPLE OF cnc hydraulic press brake for sale
Hydraulic System: The pressurized oil is directed to hydraulic cylinders, which extend to move the press brake’s ram (upper beam) downward.
Bending Action: The ram presses the metal sheet against a V-shaped die, applying controlled force to achieve precise bends.
Control System: An electric CNC/PLC system regulates pressure, ram position, and bending speed for accuracy and repeatability.
Return Stroke: After bending, the hydraulic valve reverses oil flow, retracting the cylinders to lift the ram.
Key Components: Electric motor, hydraulic pump, cylinders, ram, dies, CNC/PLC controller.
ELECTRIC hydraulic press brake china FAQS
How does an electric hydraulic sheet metal press brake work?
It uses an electric motor to power a hydraulic pump, which generates pressurized oil to drive hydraulic cylinders. These cylinders move the ram (upper beam) to apply force for bending metal sheets against a die.
What are the main advantages over traditional hydraulic press brake?
Energy efficiency: The electric motor only runs when needed, reducing power waste.
Precision: Integrated CNC/PLC controls improve accuracy and repeatability.
Lower noise: Quieter than fully hydraulic systems due to optimized pump operation.
Can it operate without hydraulic oil?
No. Hydraulic oil is essential for power transmission in the cylinders. However, modern systems use sealed circuits to minimize leaks and fluid replacement.
How precise is the bending angle?
Precision depends on:
CNC/PLC controls:Compensates for material springback and adjusts ram position.
Tooling quality:Sharp, well-aligned dies improve accuracy.
Operator skill:Proper programming and setup are critical.
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