A CNC press brake should be selected from the parts, materials, tooling, and production route—not from tonnage alone. The correct machine must provide adequate forming force and bending length while also supporting the required daylight, stroke, throat, backgauge motion, crowning, controls, guarding, material handling, and service plan.
Start With the Bending Application
- Material type, grade, and thickness range.
- Maximum and routine bend length.
- Inside radius, bend angle, and forming method.
- Part depth, flange dimensions, return bends, and box geometry.
- Part weight and support requirements.
- Daily volume, batch size, and changeover frequency.
- Tolerance, inspection method, and rework constraints.
Core Press Brake Selection Factors
| Factor | What It Controls | Common Error |
|---|---|---|
| Tonnage | Available forming force. | Using a generic estimate without confirming material, die opening, bend length, and tooling limits. |
| Bending length | Maximum supported workpiece width. | Selecting the exact current part length without setup or future-work allowance. |
| Daylight, stroke, and throat | Part access and complex geometry clearance. | Ignoring deep boxes, tall tooling, and return flanges. |
| Crowning | Compensation for machine deflection across longer bends. | Treating controller accuracy alone as sufficient for a consistent angle. |
| Backgauge | Flange position and part gauging. | Buying more axes without confirming a part requirement—or too few for the intended work. |
| Tooling and clamping | Bend radius, clearance, setup time, and compatibility. | Specifying the machine before the tooling plan. |
Hydraulic, Hybrid, and Electric Terminology
Drive-system terminology varies among manufacturers and models. Compare the actual force delivery, cycle, energy use, maintenance, temperature behavior, control, and application range instead of relying on a label alone. The final drive description must match the current manufacturer documentation for the quoted machine.
Backgauge and Axis Selection
Simple work may need only basic depth and height positioning. Tapered parts, multiple tooling stations, deep boxes, and automated cells can require independent finger movement and additional axes. Use the CNC press brake axis guide for a focused explanation.
Tooling Must Be Specified With the Machine
Punch profile, die opening, tooling height, segmentation, clamping style, tonnage per foot, clearance, and bend method affect the result. Review the Press Brake Tooling category and the published Press Brake Tooling product page.
Gator FabTech Press Brake Resources
Start with the Press Brakes category and review the published XERUS CNC hydraulic press brake page for current product information. Use the press brake tonnage calculator as an initial planning tool only; the final calculation must be checked against the selected machine, tooling, material, and forming method.
Safety, Training, and Support
Evaluate guarding, light-based protective systems where applicable, interlocks, emergency stops, operator position, tooling handling, material supports, maintenance access, installation, training, parts, and service. Productivity should not be separated from safe setup and operation.
Request-for-Quote Package
- Representative part drawings and bend sequence.
- Material list and thickness range.
- Required tonnage basis and bending length.
- Tooling style, existing tooling, and special profiles.
- Axis, crowning, control, and offline-programming requirements.
- Part-support, automation, guarding, and facility requirements.
- Production volume, setup frequency, and target schedule.
Submit the package through the Gator FabTech contact page. Review equipment financing only after the application and machine configuration are defined.