Key advantages of GW CNC Stretchbenders
- 20 years of experience in CNC machines and bending tools
- more than 260 machines built and sold since 1999
- Customer support in choosing the right equipment and production strategy
- Average production volume per year ~350.000 for each machine
- Stretchforce 10 kN up to 800 kN in 2D and 3D movement
- Cycletime down to 20 seconds
- Universal CNC bending machine, changeover to different projects is possible
- Service engineers in Europe, China, North* and South America*
HARDWARE
- 100% industry style CNC control Siemens 840D Solution Line
- Parker/Rexroth direct controlled high performance Servovalves
- Rexroth integrated digital Measurementsystem comparable to high precision glass-scales, but contactless, inductive and robust. Accuracy up to +-3 ym/m, Position resolution up to 0.025 ym
- Closed loop control of position and force
- 100% full hardware interpolation of hydraulic and electric axes. No software solution.
- Industry highest repeatability of <=0.05 mm in production mode for hydraulic and electric axes.
- Position accuracy of each individual hydraulic CNC axis: < 0.02 mm
- Position accuracy of each individual electric CNC axis: < 0.01 mm
- Components dimensions checked by modern FEM Systems
- Possible integration of automatic mandrel handling or Airpressure systems
- Integrated noise insulated hydraulic system with energy saving pressure reservoir Made in Germany . All main components from German/European suppliers
- Steelframe and all other GW made elements are strong and reliable designed
- Integration in external components, communication to company network direct control of handling robots and external components can be integrated into the CNC with one programming interface
- Operator safety is high priority with light guards, stop valves and external position controlled stop valves.
- Our machines comply with the new European Machinery Directive 2006/42 / EC
- Machine software design open for future updates
- Profinet connection for future development
- Full Robot operation possible
- Quick toolchange system available
OPERATION
- Optional new programs by use of touch screen and table orientated programming
- Hydraulic and electric controlled axes in mixed mode
- Displacement and force control. Hybrid mixed mode available
- Free sequence programming for optimum cycle time for each project
- Easy changeover for new project. Quick changeover for project-project available
- Process parameters can be checked online
- Different material can be considered in program changes
- direct control of handling robots and external applications can be integrated into the CNC with one programming interface
- Full remote control and diagnosis
- Easy teaching of new programs or corrections
- Switchover from Force to Position controlled bending program
- HMI interface in Chinese/English/German and additional languages
- Operator training and production accompaniment on site available.
- Automatic in process material measurement possible (EGM/ELM)
- StressStrain curvature of materials can be generated
>300 kN 2D AND 3D CNC STRETCHBENDER
- Suitable for 10.000 to 1.000.000 N Stretchforce parts
- Used in automotive, Aerospace and Railway industry
- Types: 150 kN, 250 kN, 300 kN, 600 kN, 800 kN, 1.000 kN
- Partslength: 500 – 12.000 mm
- Up to 14 CNC controlled Axes
- 2D and 3D machines available
- Strong machine design
- Force- and Displacement control mode with industry highest repeatability.
- Additional functions for cutting, notching, forming
- Electrical connections for sensors and checks.
- Profinet for local and company connection
- Flexible design matching floorspace requirements can be integrated into the CNC with one programming interface
- Full remote control and diagnosis
- Easy teaching of new programs or corrections
- Switchover from Force to Position controlled bending program
- HMI interface in Chinese/English/German and additional languages
- Operator training and production accompaniment on site available.
- Automatic in process material measurement possible (EGM/ELM)
- StressStrain curvature of materials can be generated