Case

4MM Stainless Steel Servo CNC Press Brake For Sale

4MM Stainless Steel Servo CNC Press Brake is a CNC equipment that uses an electrical hydraulic servo synchronous system to control the movement of the slide, and realizes high-precision bending of 4mm thick stainless steel plates through upper and lower molds.

The equipment is accurate, energy-saving, and highly intelligent, and is widely used in sheet metal processing, kitchen equipment, electrical boxes and cabinets, stainless steel products and other industries.

1. Structure and configuration of 4mm stainless steel servo CNC press brake

High-rigidity welded bed, annealed, no deformation after long-term use.
Double-cylinder servo motor controls the slide to ensure synchronization accuracy.
High-performance backgauge system, precisely driven by servo motor, supports multi-axis control.
Standard fast clamping system, efficient mold change, saves machine adjustment time.
Optional automatic loading and unloading manipulator to achieve fully automated bending.

2. Advantages and highlights of servo bending machine

High-precision bending: adopting oil-electric hybrid servo control system, the slider position control is more accurate.
Energy saving and environmental protection: the servo energy-saving system saves more than 60% energy compared with traditional hydraulic presses.
Intelligent operation: graphical programming, automatic bending sequence, rebound compensation.
Multi-axis linkage: the back gauge supports multi-axis control to meet complex bending processes.
Strong mold versatility: compatible with a variety of standard molds, reducing the cost of use.
Simple maintenance: the oil circuit system is simple, the electronic control system is modular and easy to maintain.

3. Pressure analysis of 200ton 4000mm servo CNC bending machine

Take the WDK 200ton 4000mm servo CNC press brake machine shown in the picture as an example, we analyze the bending force.

The thickness of stainless steel plate that can be bent by the 200ton 4000mm hybrid CNC press brake machine mainly depends on the following factors:

Sheet material (tensile strength)

Stainless steel is stronger than ordinary carbon steel, and it is more “laborious” when bending.

Bending die V-groove opening size

The common experience is: V-groove opening ≈ 8~12 times the plate thickness.

Bending method

Bottom die, air bending, etc. Different methods require different tonnage.

Approximate bending capacity calculation (stainless steel):

Taking a 200 ton 4000mm bending machine as an example, the following is the thickness range of stainless steel plates that can be bent (general estimate):

Sheet length (mm)	Thickness of foldable stainless steel (mm)	Notes
4000 mm (full length)	≤3mm	Relatively safe, recommended thickness for long-term use
3000 mm	≤4mm	Can be slightly thicker for medium length
2000 mm	≤5~6mm	Short board bending ability greatly improved
1000 mm	≤8mm	Partial bending can reach this thickness, but be careful

For example:

If you use a V=40mm mold to bend 4mm thick 304 stainless steel within a length of 3 meters, it will take about 180~200 tons.

If you bend a 6mm thick stainless steel plate, it is recommended to control the bending length within 2 meters.

Notes:

For long-term safe use, it is recommended to be 80~90% folded, and do not use full load for a long time.

If a large V groove (such as 10× plate thickness) is used, the actual required tonnage will be reduced.

If you want to bend complex shapes (such as U-shaped, short sides), it is recommended to increase the machine tonnage.

Summary:

A 200ton 4000mm hybrid press brake can bend:

4mm thick 304 stainless steel plate, up to 4000mm in length.

For 5~6mm thick stainless steel plates, the bending length needs to be shortened to within 2000~2500mm.

If you need to bend thicker plates over the entire length, it is recommended to use a 250-ton or larger tonnage machine.

4. 4mm stainless steel CNC plate bending machine common model reference

Bending length	Recommended tonnage	Recommended model configuration
≤2500mm	≥125 tons	125T/2500 4+1 axis EL15T
≤3200mm	≥160 tons	160T/3200 4+1 axis ESA S640
≤4000mm	≥200 tons	200T/4000 6+1 axis ELT 17T

If you need to recommend a specific model or provide a technical parameter table, you can also tell me the specific plate material, length, processing frequency and precision requirements.