Valve-controlled press brake VS Pump-controlled press brake

Valve-controlled press brakes and pump-controlled press brakes are both hydraulic equipment used for bending metal sheets, but they have some differences in control methods and performance characteristics:

Control method

Valve-controlled press brake

Mainly controls the action of the hydraulic cylinder and the bending process by adjusting valves in the hydraulic system (such as pressure control valve, directional control valve and flow control valve). Operators often need to manually or semi-automatically adjust valves to set pressure, speed and angle.

Valve-controlled press brake VS Pump-controlled press brake

Pump-controlled press brake

Usually a servo motor is used to drive the hydraulic pump and combined with a CNC system for precise control. By finely adjusting the speed and direction of the motor, high-precision control of pressure and flow can be achieved, thereby improving the automation and accuracy of bending.

Valve-controlled press brake VS Pump-controlled press brake

Accuracy and repeatability

Valve-controlled press brake

Because they rely on manual or semi-automatic valve adjustment, their accuracy and repeatability can be relatively low, especially when processing complex workpieces or when high-precision bending is required.

Pump-controlled press brake

Due to the precision control of servo motors and CNC systems, pump-controlled press brakes are usually able to provide higher accuracy and better repeatability, and are suitable for high-precision and mass production needs.

Degree of automation

Valve-controlled press brakes

The degree of automation is relatively low and many operations may require manual intervention and monitoring, especially when adjusting valve settings and handling different workpieces.

Pump-controlled press brake

It has a high degree of automation and can automate complex bending processes through programming and CNC systems, reducing manual intervention and improving production efficiency.

Cost and maintenance

Valve-controlled press brake

Due to its relatively simple structure, the initial investment cost may be lower, and maintenance and repair may also be easier.

Pump-controlled press brake

Application occasions

Valve-controlled press brake

suitable for occasions with relatively low accuracy requirements, small production batches or limited budgets.

Pump-controlled press brake

More suitable for large-scale production environments that require high precision and production efficiency, especially in industries such as automobile manufacturing, aerospace, and precision instruments.

In general, valve-controlled press brakes and pump-controlled press brakes each have their own advantages and disadvantages. Which type of equipment to choose depends on factors such as specific application needs, production scale, accuracy requirements, and budget.

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