01
Standard bending jobs need better repeatability
CNC control of the back gauge and bending steps supports repeated dimensions and reduces positioning errors caused by fully manual measurement.
Bending Machines / Torsion Bar CNC Press Brake
Torsion Bar CNC Press Brake
Cost-effective CNC bending solution for standard sheet metal fabrication.
A torsion bar CNC press brake designed for regular sheet metal bending, workshop production and standard metal fabrication. It combines hydraulic bending force, torsion bar synchronization and practical CNC control to help customers achieve repeatable bending with a more economical machine configuration.
Torsion Bar Synchronization
CNC Controlled Bending
Hydraulic Bending Force
Cost-effective Workshop Solution
Production Challenges
What Bending Problems Can It Solve?
Start with repeatability, control, workpiece complexity and investment level before selecting the bending platform.
02
Full electro-hydraulic CNC press brake is too costly
For regular sheet-metal parts, small or medium batches and budget-sensitive projects, torsion-bar CNC control offers a more economical bending platform.
03
Manual or basic hydraulic bending cannot meet production needs
When a workshop needs more stable angles, longer workpieces and a higher production rhythm, a torsion-bar CNC press brake is a practical upgrade.
04
Workshops need practical CNC operation
The machine suits sheet-metal factories, cabinet producers, duct workshops, repair fabricators and general metalworking production.
05
Different parts need flexible bending settings
Tonnage and configuration can be selected around material, thickness, bending length, tooling, back-gauge requirements and part complexity.
Solution Positioning
Torsion Bar CNC Sheet Metal Bending Solution
Three common production contexts show where torsion-bar synchronization and practical CNC control create value.
01
General Sheet Metal Workshop
- Suitable for
- Small and medium sheet-metal factories, non-standard part fabricators and repair workshops.
- Recommended use
- Daily bending of mild steel, stainless steel, galvanized sheet and aluminum for regular fabricated parts.
- Production value
- A practical CNC-controlled hydraulic platform for routine work and small or medium batches.
02
Cabinet & Enclosure Fabrication
- Suitable for
- Electrical cabinet, control cabinet, enclosure and metal housing manufacturers.
- Recommended use
- Bending panels, doors, housings, brackets and reinforcement plates with repeated dimensions.
- Production value
- Programmed positioning supports recurring cabinet work without the complexity of a high-end servo platform.
03
Duct, Structure & Machinery Parts
- Suitable for
- HVAC duct, steel-structure accessory, machinery and construction metalwork producers.
- Recommended use
- Small and medium batch bending coordinated with shearing, laser cutting, rolling and welding processes.
- Production value
- Connects cutting and downstream assembly through a dependable core bending operation.
Real Workshop Context
Applications
Real industrial scenes show the workshops and fabricated products where CNC press-brake bending can form part of the production flow.
Sheet metal fabrication
Supports repeatable bending of brackets, panels, covers and standard fabricated parts in small and medium batches.
Electrical cabinet and enclosure
Fits cabinet panels, doors, housings, mounting plates, brackets and reinforcement parts with recurring bend dimensions.
HVAC duct and ventilation parts
Suitable for duct panels, transitions, flanges and ventilation components that require controlled back-gauge positioning.
Stainless steel products
Handles suitable stainless panels and products when tonnage, bending length and tooling match the material requirement.
Machinery manufacturing
Useful for guards, supports, frames, covers and standard machinery components that need programmed bending steps.
Steel structure components
Provides hydraulic bending force for suitable gussets, covers, brackets and secondary structural components.
Door and window metal parts
Supports frames, cover plates, brackets and formed metal parts used in door, window and architectural fabrication.
General metalworking workshop
A practical CNC bending platform for repair shops and general workshops producing varied standard parts.
Bending Materials
Materials
01Mild Steel
02Stainless Steel
03Galvanized Sheet
04Aluminum Plate
05Copper Sheet
06Thin Metal Plate
The suitable bending thickness depends on material strength, bending length, V-die opening, bending angle and machine tonnage. Please confirm your material and bending requirement before quotation.
Bending Process
From Flat Sheet to Bent Part
A practical six-step view from prepared sheet to a checked component ready for downstream manufacturing.
1
Sheet Cutting
Cut the sheet to the required size by shearing machine, laser cutting machine or other cutting equipment.
2
Tooling Selection
Select suitable punch and die according to material, thickness and bending angle.
3
CNC Back Gauge Positioning
Use the CNC or NC back gauge to position the sheet for repeated bending sizes.
4
Hydraulic Bending
The hydraulic system drives the ram to bend the sheet between upper and lower tooling.
5
Angle Checking
Check the bending angle and adjust stroke, tooling or compensation when needed.
6
Next Process
Continue with welding, riveting, assembly, surface treatment or final product manufacturing.
Mechanical Synchronization
Torsion Bar Synchronization for Standard Bending
The torsion bar structure mechanically links both sides of the ram to support synchronized movement during standard sheet-metal bending. It is a mature, economical platform for regular workshop production.
- The torsion bar structure helps synchronize both sides of the ram during bending.
- It is a practical solution for standard sheet-metal bending and regular workshop production.
- Compared with electro-hydraulic servo CNC press brakes, the structure is generally more economical and easier to maintain.
- It suits customers who need CNC-controlled bending without high-end multi-axis servo synchronization.
- Before quotation, confirm material, thickness, bending length, controller requirement and part complexity.
Torsion-bar mechanical synchronization
Mechanical stop or Y-axis-related control
CNC or NC controller
X-axis back-gauge control
Optional R-axis back-gauge configuration
Mechanical or manual crowning where selected
Hydraulic cylinders
Back-gauge drive matched to the final configuration
Controller Positioning
Practical CNC Control for Workshop Bending
CNC control supports repeated bending jobs and standard sheet-metal production while keeping operation and configuration practical for small and medium workshops.
- The controller can manage back-gauge positioning, bending steps and production settings depending on machine configuration.
- It is more economical and easier to operate than advanced full-servo CNC systems for standard bending tasks.
- Programmed positioning helps reduce repeated manual measuring and supports consistent part dimensions.
- Axis functions, controller model and programming capability must be confirmed against part complexity before quotation.
Practical Machine Value
Why Choose This Torsion Bar CNC Press Brake?
01
Cost-effective CNC bending solution
02
Torsion-bar synchronization for standard bending tasks
03
Hydraulic system for stable bending force
04
CNC or NC back gauge for repeated positioning
05
Whole welded steel frame for workshop use
06
Practical for small and medium batch production
07
Easier maintenance than more complex servo-hydraulic systems
08
Works with shearing, laser cutting, rolling and welding processes
Verified or configuration-dependent structure
Whole welded steel frame · Hydraulic cylinders · Torsion-bar synchronization system · CNC controller · Back-gauge system · Upper punch and lower die · Front support arms · Foot-pedal control · Electrical cabinet · Optional crowning configuration
Objective Selection
Torsion Bar CNC Press Brake vs Electro-hydraulic CNC Press Brake vs NC Press Brake
Each machine type serves a different production need. Compare synchronization, control, part complexity and investment before selecting the platform.
| Comparison Item | Torsion Bar CNC Press Brake | Electro-hydraulic CNC Press Brake | NC Press Brake |
|---|---|---|---|
| Synchronization method | Mechanical torsion-bar synchronization links both sides of the ram. | Closed-loop synchronization uses proportional servo valves and position feedback on Y1/Y2. | Commonly uses a mature mechanical synchronization structure for basic bending. |
| Control system | Practical CNC control for back gauge, stroke and programmed steps depending on configuration. | Advanced CNC control for synchronized cylinders, multiple axes and broader programming. | Basic NC control focused on regular positioning and stroke settings. |
| Axis configuration | Common X/Y-related control with optional R-axis capability where selected. | Y1/Y2, X, R and optional Z axes depending on the final machine. | Usually limited to the axes needed for basic positioning and stroke control. |
| Suitable production type | Standard sheet-metal parts and small or medium batch production. | Precision batches, frequent changeovers and complex production. | Basic parts, routine workshop work and smaller batches. |
| Bending complexity | Conventional and standard multi-step bending within the selected configuration. | Complex workpieces, multi-axis positioning and higher control requirements. | Simple and regular bending sequences. |
| Cost level | Economical CNC platform between basic NC and servo CNC machines. | Higher investment for accuracy, axes, feedback and automation. | Lowest entry level for basic numerical-control bending. |
| Maintenance difficulty | Mechanical synchronization is generally simpler to maintain than closed-loop servo systems. | More complex hydraulic, electrical and feedback systems require specialist support. | Relatively straightforward for routine workshop service. |
| Recommended use | Workshops needing practical CNC control and repeatable standard bending at a controlled investment. | Factories prioritizing precision, complex parts, automation and frequent order changes. | Budget-conscious workshops handling simple and conventional bending tasks. |
Connected Production
Build a Complete Sheet Metal Fabrication Workflow
The torsion bar CNC press brake is not only a single machine, but also a core bending machine in a complete sheet metal fabrication workflow.
01
Shearing Machine
Straight cutting and blank preparation before bending.
02
Fiber Laser Cutting Machine
Complex contour cutting and nested sheet preparation.
03
Torsion Bar CNC Press Brake
Core CNC-controlled sheet-metal bending and forming operation.
04
Plate Rolling Machine
Arc, cone or cylinder forming for curved workpieces.
05
Hydraulic Press
Pressing, assembly, forming and correction processes.
06
Welding Machine
Joining formed components into assemblies.
07
Surface Treatment
Grinding, finishing, coating or painting before delivery.
Configuration Guide
How to Choose the Right Torsion Bar CNC Press Brake?
Provide the real workpiece and production requirements so tonnage, length, synchronization, controller, tooling and options can be reviewed together.
Sheet material
Maximum sheet thickness
Maximum bending length
Required bending angle
Minimum flange size
Daily production quantity
Part complexity
Required tonnage
Back-gauge axis requirement
Controller preference
Tooling requirement
Voltage requirement
Need crowning system or not
Need to match with shearing, laser cutting or other equipment
Original Product Data
Technical Specifications
All values below come from the existing torsion-bar CNC press-brake product data.
| Model Type | Nominal Force(KN) | Worktable Length(mm) | Distance Between Uprights(mm) | Throat Depth(mm) | Ram Stroke(mm) | Max Opening Height(mm) | Main Motor Power(kW) | Overall Dimensions L × W × H(mm) |
|---|---|---|---|---|---|---|---|---|
| 40T/2200 | 400 | 2200 | 1870 | 230 | 100 | 320 | 4 | 2200 x 1200 x 1900 |
| 40T/2500 | 400 | 2500 | 1960 | 230 | 100 | 320 | 4 | 2500 x 1200 x 1900 |
| 50T/2500 | 500 | 2500 | 1960 | 230 | 100 | 320 | 5.5 | 2500 x 1200 x 2000 |
| 63T/2500 | 630 | 2500 | 1960 | 250 | 120 | 320 | 5.5 | 2500 x 1300 x 2210 |
| 63T/3200 | 630 | 3200 | 2600 | 250 | 120 | 320 | 5.5 | 3200 x 1300 x 2210 |
| 80T/2500 | 800 | 2500 | 1960 | 300 | 120 | 320 | 7.5 | 2500 x 1400 x 2300 |
| 80T/3200 | 800 | 3200 | 2600 | 320 | 120 | 350 | 7.5 | 3200 x 1500 x 2300 |
| 80T/4000 | 800 | 4000 | 3160 | 320 | 120 | 350 | 7.5 | 4000 x 1500 x 2400 |
| 100T/2500 | 1000 | 2500 | 1960 | 320 | 140 | 350 | 7.5 | 2500 x 1600 x 2400 |
| 100T/3200 | 1000 | 3200 | 2600 | 320 | 140 | 400 | 7.5 | 3200 x 1600 x 2600 |
| 100T/4000 | 1000 | 4000 | 3160 | 320 | 140 | 400 | 7.5 | 4000 x 1600 x 2600 |
| 125T/3200 | 1250 | 3200 | 2600 | 320 | 140 | 400 | 11 | 3200 x 1600 x 2600 |
| 125T/4000 | 1250 | 4000 | 3160 | 320 | 140 | 400 | 11 | 4000 x 1600 x 2600 |
| 160T/3200 | 1600 | 3200 | 2600 | 320 | 190 | 460 | 11 | 3200 x 1700 x 2700 |
| 160T/4000 | 1600 | 4000 | 3160 | 320 | 190 | 460 | 11 | 4000 x 1700 x 2800 |
| 160T/5000 | 1600 | 5000 | 4060 | 320 | 190 | 460 | 11 | 5000 x 1900 x 3100 |
| 160T/6000 | 1600 | 6000 | 4850 | 320 | 190 | 460 | 11 | 6300 x 1900 x 3200 |
| 200T/3200 | 2000 | 3200 | 2600 | 320 | 190 | 460 | 15 | 3200 x 1950 x 2800 |
| 200T/4000 | 2000 | 4000 | 3160 | 320 | 190 | 460 | 15 | 4000 x 1950 x 2800 |
| 200T/5000 | 2000 | 5000 | 4060 | 320 | 190 | 460 | 15 | 5000 x 1950 x 3000 |
| 200T/6000 | 2000 | 6000 | 4850 | 320 | 190 | 460 | 15 | 6000 x 1950 x 3300 |
| 250T/3200 | 2500 | 3200 | 2450 | 400 | 250 | 590 | 18.5 | 3250 x 2000 x 3200 |
| 250T/4000 | 2500 | 4000 | 3160 | 400 | 250 | 590 | 18.5 | 4000 x 2000 x 3400 |
| 250T/5000 | 2500 | 5000 | 4060 | 400 | 250 | 590 | 18.5 | 5000 x 2000 x 3400 |
| 250T/6000 | 2500 | 6000 | 4850 | 400 | 250 | 590 | 18.5 | 6000 x 2000 x 3400 |
| 300T/3200 | 3000 | 3200 | 2600 | 400 | 250 | 590 | 22 | 3200 x 2000 x 3450 |
| 300T/4000 | 3000 | 4000 | 3160 | 400 | 250 | 590 | 22 | 4000 x 2000 x 3450 |
| 300T/5000 | 3000 | 5000 | 4060 | 400 | 250 | 590 | 22 | 5000 x 2000 x 3450 |
| 300T/6000 | 3000 | 6000 | 4850 | 400 | 250 | 590 | 22 | 6000 x 2000 x 3450 |
| 400T/3200 | 4000 | 3200 | 2600 | 400 | 250 | 590 | 30 | 3200 x 2180 x 3400 |
| 400T/4000 | 4000 | 4000 | 3160 | 400 | 250 | 590 | 30 | 4000 x 2180 x 3400 |
| 400T/5000 | 4000 | 5000 | 4060 | 400 | 250 | 590 | 30 | 5000 x 2180 x 3500 |
| 400T/6000 | 4000 | 6000 | 4850 | 400 | 250 | 590 | 30 | 6000 x 2180 x 3800 |
| 500T/5000 | 5000 | 5000 | 4060 | 400 | 300 | 590 | 37 | 5050 x 3500 x 3700 |
| 500T/6000 | 5000 | 6000 | 4850 | 400 | 300 | 590 | 37 | 6050 x 3500 x 3700 |
| 600T/4000 | 6000 | 4000 | 3160 | 400 | 320 | 590 | 45 | 4050 x 4500 x 3700 |
| 600T/6000 | 6000 | 6000 | 4850 | 400 | 320 | 590 | 45 | 6050 x 4500 x 3700 |
Final specifications depend on sheet material, thickness, bending length, tooling, controller, synchronization system and selected machine configuration.
Tooling Matters for Better Bending
Tooling, V-die opening and material strength must be reviewed together with the required part geometry.
01
Different bending jobs require a suitable punch and die.
02
V-die opening affects bending force, minimum flange size and bending quality.
03
Stainless steel usually requires higher bending force than mild steel under similar conditions.
04
Special profiles may require custom tooling.
05
Final tooling recommendations should be confirmed from the drawing, material and bending angle.
Buyer Questions
Frequently Asked Questions
Answers use current product information and keep configuration-dependent details conditional.
01What is a torsion bar CNC press brake?
It is a CNC bending machine that uses hydraulic force and a mechanical torsion-bar structure to synchronize both sides of the ram. It is intended for standard sheet-metal bending and small or medium workshop production.
02What materials can this machine bend?
It is commonly used for mild steel, stainless steel, galvanized sheet, aluminum and copper. Actual capacity depends on material strength, thickness, bending length, tooling and machine tonnage.
03What is the difference between a torsion bar CNC press brake and an electro-hydraulic CNC press brake?
A torsion-bar machine uses mechanical synchronization and is an economical choice for standard bending. An electro-hydraulic machine uses closed-loop cylinder control and is better suited to higher accuracy, more axes and complex workpieces.
04What is the difference between an NC press brake and a torsion bar CNC press brake?
An NC press brake focuses on basic, economical control. A torsion-bar CNC press brake can provide broader controller, back-gauge and program-management capability depending on configuration, making it suitable for standard CNC bending needs.
05Is this machine suitable for small and medium workshops?
Yes. It is a practical choice for sheet-metal workshops, cabinet factories, duct producers and general metalworking customers that need an economical CNC bending solution.
06Can it bend stainless steel?
Yes, when tonnage and tooling are selected for the stainless-steel strength, thickness and bending length.
07How do I choose the right tonnage?
Confirm material type, thickness, bending length, V-die opening, bending angle and the workpiece drawing. Final tonnage should be reviewed by an engineer.
08What controller can be used on this machine?
Different CNC or NC controllers can manage the back gauge, ram stroke, program steps and workpiece counting. The final model and functions depend on the selected machine configuration.
09Can the machine be customized?
Bending length, tonnage, controller, back-gauge axes, voltage, tooling, safety configuration and crowning method can be reviewed before quotation.
10What information should I provide before quotation?
Provide the material, thickness, bending length, angle, part drawing, production quantity, voltage, controller requirement, back-gauge requirement and destination country or port.
Explore Related Equipment
Continue planning the fabrication line.
Talk to an Engineer
Need a Cost-effective CNC Bending Solution?
Send your material, thickness, bending length, drawing and production requirement. We will recommend a suitable torsion bar CNC press brake configuration for your workshop.