Servo positioning
Programmed feed, rotation and bending coordinates are executed with repeatable positioning for consistent part geometry.
Griffin product overview
Hybrid CNC tube bending, engineered for production
One platform. Eleven capacities. One control philosophy.
Engineered and manufactured by DuralBend in Istanbul, Türkiye, the CNC Griffin Series is a hybrid tube bending platform for medium- and heavy-duty production. Servo-controlled positioning follows the programmed coordinates with repeatable accuracy, while hydraulic auxiliary movements provide the clamping force required at the tooling.
Every Griffin CNC tube bending machine comes standard with ETU. The result is dependable bend angle, feed and rotation values, faster setup and consistent geometry across long, multi-shift production runs.
- Griffin product range11 Models
- Capacity rangeØ32–Ø170 mm
- Axis configurationsAvailable in 3- to 6-axis configurations
- Tube bending expertise35+ years
Griffin architecture
The product, explained in four systems
Hydraulic clamping
Hydraulic auxiliary movements deliver reliable compression force for larger diameters and demanding wall sections.
Up to 6-axis configurations
Select the motion configuration required by the part, production method and tooling arrangement.
ETU CNC control
3D STEP import, bending simulation and Cartesian programming bring part preparation into one operator workflow.
- 01 · Program
Prepare the part in ETU
Import the geometry, define the bending sequence and review the part before production.
- 02 · Position
Execute precise servo motion
Griffin follows the programmed coordinates to control the part position from bend to bend.
- 03 · Form
Apply force at the tooling
The hydraulic system supplies dependable clamping power where the bending process requires it.
Hybrid bending technology
Servo Precision Meets Hydraulic Clamping Power
The Griffin platform combines servo motor precision on the positioning axes with hydraulic power for the auxiliary compression movements. This hybrid architecture is a deliberate engineering choice, shaped by decades of real production experience.
Servo control provides repeatable positioning, while the hydraulic system delivers the clamping force genuinely required by larger diameters and heavier wall sections. The result is tight tolerances at every bend, reliable force where it matters and a platform refined through continuous feedback from manufacturing environments.
Full technical data for all eleven Griffin models is available in the Technical Specifications section below.
ETU CNC software01 02 03
Intelligent Software, Effortless Operation
Every Griffin CNC machine ships with ETU, turning complex bending projects into clear visual workflows that operators can learn quickly.
3D STEP Import
Load a standard 3D STEP file from a major CAD system. ETU converts the model into bending coordinates automatically, reducing manual entry and calculation errors.
Bending Simulation
Review the full sequence before material touches the die. Check clearances, identify potential collisions and optimise bend order before production begins.
Cartesian Coordinate Programming
Enter X, Y and Z positions while ETU calculates feed length, bend angle and rotation values—cutting setup time and reducing programming mistakes.
Griffin in production
See Griffin CNC Tube Bending Machines at Work
Watch real bending applications, multi-stack tooling and rolling operations on DuralBend Griffin machines.
Machine construction
Built for Precision and Durability
Heavy-duty frames and linear guide systems minimise friction during feeding and rotation, supporting fast and accurate bending with lower tool wear over time. Wiper die, ball mandrel and pressure die systems help produce smooth, wrinkle-free bends—even on demanding thin-wall tubing.
The inverter-controlled drive system optimises motor speed and torque for each bend. Energy-saving operation reduces idle consumption without affecting cycle time, while ergonomic loading height and clear on-screen diagnostics support operators throughout long production shifts.
Core electrical, motion and hydraulic components are selected from established global manufacturers, including Schneider Electric, Yaskawa, Festo, Atos, INA, SICK, Wittenstein and Rossi.
Eleven Griffin models
One product family, Ø32–Ø170 mm
The CNC Griffin product range covers tube diameters from Ø32 mm through Ø170 mm, with 3-, 4-, 5- and 6-axis configurations.
Developed through more than 35 years of direct work with manufacturers in automotive, HVAC, furniture, aerospace and structural steel, each Griffin model is sized for a defined production requirement—from compact precision parts to heavy-duty structural applications.
- Large touchscreen industrial computer
- Comprehensive tooling packages
- Engineering and technical support from Istanbul, Türkiye
- Eleven Griffin models with detailed specifications
Technical specifications
Griffin Model Comparison
Compare the standard capacities of all eleven DuralBend Griffin CNC tube bending machine models.
| Machine Type | Griffin 32 | Griffin 38 | Griffin 51 | Griffin 60 | Griffin 76 | Griffin 90 | Griffin 100 | Griffin 114 | Griffin 130 | Griffin 150 | Griffin 170 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. Tube Diameter (mm) | 32 × 2 | 38 × 2 | 51 × 3 | 60 × 3 | 76 × 3 | 90 × 4 | 101.6 × 6 | 114 × 6 | 130 × 6 | 150 × 7 | 170 × 7 |
| Max. Radius (mm) | 200 | 200 | 220 | 220 | 250 | 300 | 350 | 400 | 500 | 500 | 600 |
| Max. Bending Angle (°) | 190 | 190 | 190 | 190 | 190 | 190 | 190 | 190 | 190 | 190 | 190 |
| Usable Tube Length with Collet Edge (mm) | 2500 | 2500 | 2600 | 2600 | 3000 | 3000 | 3000 | 3000 | 4000 | 4000 | 4000 |
| Usable Tube Length with Mandrel (mm) | 3600 | 3600 | 3600 | 3600 | 4400 | 4400 | 4600 | 4600 | 6700 | 6700 | 6700 |
| Max. Bending Speed (°/sec) | 99 | 99 | 36 | 36 | 48 | 30 | 10 | 10 | 5 | 5 | 5 |
All eleven models are available in 3-, 4-, 5- and 6-axis configurations. For a machine configured to your part geometry, send us your drawing or a sample and our engineering team will recommend the right specification.
Tube bending machine FAQ
Frequently Asked Questions
Practical answers about CNC tube bending, tooling and choosing the right DuralBend Griffin configuration for your parts.
Choosing a CNC tube bender
How do I choose the right CNC tube bending machine?
Start with your most demanding part, not the tube diameter alone. Tube profile, outside diameter, wall thickness, material grade, centreline radius, bend sequence, tolerances, production volume and loading method all affect the required machine capacity, axis configuration and tooling.
What determines the minimum possible bend radius?
Minimum bend radius depends on the tube diameter, wall thickness, material strength and ductility, bend angle and available tooling. Tighter radii and thin walls generally require stronger internal and external support to control flattening, thinning and wrinkles.
When are a mandrel and wiper die required?
A mandrel supports the tube from inside during bending, while a wiper die helps prevent wrinkles on the inside of the bend. They are commonly used for tight radii, thin-wall tubes and parts with strict ovality or surface-quality requirements. The exact tooling is selected from the part geometry and material.
Can different materials and tube profiles be bent?
CNC bending can be engineered for many metallic materials and for round or selected non-round profiles, but feasibility is part-specific. Material grade, weld seam, profile geometry, wall thickness, radius and finish requirements must be reviewed before the machine and tool set are specified.
What information should I send for a feasibility study or quotation?
Send a 3D STEP file or dimensioned 2D drawing together with the material grade, tube size and wall thickness, centreline radius, tolerances, annual quantity and any loading or automation requirements. A physical sample is also useful when the existing part must be reproduced.
About DuralBend Griffin
What capacity range does the Griffin series cover?
The Griffin family includes eleven machine sizes from Griffin 32 through Griffin 170, covering published maximum tube capacities from Ø32 × 2 mm to Ø170 × 7 mm. Final capacity depends on material, radius and part geometry; compare the values in the Griffin model table.
Are Griffin machines available with different axis configurations?
Yes. All eleven Griffin models are available in 3-, 4-, 5- and 6-axis configurations. The appropriate configuration is chosen according to the part sequence, tooling arrangement, cycle-time target and required level of automation.
Why does Griffin combine servo positioning with hydraulic clamping?
Servo-controlled positioning provides repeatable feed, rotation and bend coordinates. Hydraulic auxiliary movements deliver the clamping force required at the tooling, particularly for larger diameters and heavier wall sections. Griffin combines both technologies in one production platform.
Is ETU CNC software included with a Griffin machine?
Yes. ETU is standard on every Griffin CNC machine. It supports 3D STEP import, visual bending simulation and Cartesian XYZ programming, helping operators prepare bending programs and review the sequence before production.
Which component brands are used in Griffin machines?
DuralBend selects core electrical, motion and hydraulic components from established global manufacturers, including Schneider Electric, Yaskawa, Festo, Atos, INA, SICK, Wittenstein and Rossi.
Can Dural recommend the machine model and tooling for my part?
Yes. Send your drawing, STEP file or sample to the Dural engineering team in Istanbul. The team will review the part and recommend the suitable Griffin capacity, axis configuration and tooling package. Contact the engineering team to start the review.