Comprehensive Guide to CNC Press Brake: From Principles to Usage Steps

In the sheet metal processing industry, the "CNC Press Brake (Computer Numerical Control Press Brake)" is becoming a core device for companies to improve production line efficiency and product precision. This article will provide a comprehensive introduction to the workings and practical applications of CNC press brake from four aspects: principle, structure, advantages, and usage steps.

1. What is a CNC Press Brake?

A CNC press brake is a device that precisely bends sheet metal by controlling the movement of the slide and backgauge. It uses a CNC system to control the movement of each axis, combined with hydraulic drive, die pressure, and angle detection, to achieve precise, stable, and efficient sheet metal bending.

Depending on the drive method, common types include:

✅ Electro-hydraulic synchronous bending machine (servo-hydraulic control, mainstream configuration)

✅ Torsional axis synchronous bending machine (simple structure, suitable for general needs)

✅ Pure Electric servo bending machine (high-end energy-saving model, suitable for small precision workpieces)

2. The main components of CNC bending machine

3. The main advantages of CNC bending machines

1. High Precision and Excellent Repeatability

The CNC system achieves positioning accuracy of ±0.01mm, ensuring high bending angle consistency.

2.Fast mold changeover and simple operation

Using program calls and graphical guidance, mold and process switching can be completed in minutes, making it suitable for high-variety orders.

3.Adaptable to Flexible Manufacturing

Supports complex bending paths and multi-stage bending programs, making it suitable for customized, low-volume, and high-volume production.

4.Ample room for intelligent upgrades

Automated loading and unloading, robotic collaboration, and angle detection systems can be expanded to enable automated production line deployment.

4. Correct use steps of CNC bending machine

1. Power-On Inspection:

Check the hydraulic oil level;

Confirm that the power supply, voltage, and air pressure are safe;

Check that the mold is securely installed and that the safety devices are intact.

2. Programming:

Enter the bending angle, length, sequence, and backgauge position;

Import machining drawings via the graphical interface or USB;

Set compensation parameters and limit switches.

3. Plate Positioning and Operation:

Place the plate on the workbench, close to the back gauge.

A foot pedal controls the movement of the slide to perform the bending.

The system automatically controls the angle and stroke to avoid over- or under-pressure.

4. After bending is completed:

Check the workpiece dimensions and angles;

Turn off the power and clean the equipment;

Keep daily maintenance records.

5. Applicable industries and typical applications

CNC bending machines are widely used in:

Sheet metal fabrication: Chassis, cabinets, brackets

Automotive parts: Body frames, support beams

Home appliance manufacturing: Refrigerator doors, air conditioner casings

Power distribution industry: Control cabinets, switch cabinet door panels

Stainless steel products industry: Cabinets, stair railings, door and window components

6. Summary

With the continuous advancement of industrial automation and intelligent manufacturing, CNC press brakes are gradually replacing traditional manual bending and becoming the "intelligent backbone" of sheet metal production lines. For companies considering equipment upgrades or improving processing precision, choosing a CNC press brake with stable performance, high intelligence, and easy operation is undoubtedly a key step in achieving both efficiency and quality improvements.

If you have further questions about equipment selection, operator training, or export configuration, please feel free to contact the ZYCO technical team. We will provide you with professional and efficient one-stop solutions.