Boschert R4C Plate Roll Bending Machine
Symmetrical 4-roll hydraulic plate bending for thick sheet and production runs, nearly 40 configurations with EasyRoll CNC
- Configuration
- 4-roll symmetrical, all driven (100% hydraulic)
- Bending Length
- 1 to 4 m (1100 to 4100 mm)
- Material Thickness
- 8 to 50 mm
- Top Roll Diameter
- 205 to 460 mm
- Motor Power
- 5.5 to 45 kW
- Configurations
- Nearly 40
- Material Basis
- Steel S235 (240 N/mm²)
Applications
Where It Works
- Rolling thick plate from 8 to 50 mm up to 4 m wide
- Production runs of repeatable cylinders where 4-roll grip speeds cycle time
- Heavy fabrication needing prebent edges with minimal flat ends
Features
Built In
- A symmetrical 4-roll design grips the sheet between top and bottom rolls, so prebent edges come out with minimal flat portion and no need to flip the plate.
- Four independently driven hydraulic rolls, synchronised with a swivel-out pinch roll, handle thick sheet from 8 to 50 mm across nearly 40 configurations.
- Controlled pinching limits lamination on heavy plate, and EasyRoll CNC keeps repeatable diameters through production runs.
Specifications
Technical Specs
Capacity
- Configuration
- 4-roll symmetrical, all driven (100% hydraulic)
- Bending Length
- 1 to 4 m (1100 to 4100 mm)
- Material Thickness
- 8 to 50 mm
- Top Roll Diameter
- 205 to 460 mm
- Motor Power
- 5.5 to 45 kW
- Configurations
- Nearly 40
- Material Basis
- Steel S235 (240 N/mm²)
Representative Configurations
| Model | Bending Length | Top Roll Diameter | Max Bending Thickness | Motor Power |
|---|---|---|---|---|
| R4C 205-10 | 1100 mm | Ø205 | 12 mm (14 mm at 5×D) | 5.5 kW |
| R4C 285-20 | 2100 mm | Ø285 | 14 mm (16 mm at 5×D) | 15 kW |
| R4C 400-25 | 2600 mm | Ø400 | 27 mm (30 mm at 5×D) | 30 kW |
| R4C 460-30 | 3100 mm | Ø460 | 32 mm (35 mm at 5×D) | 45 kW |
| R4C 460-40 | 4100 mm | Ø460 | 24 mm (26 mm at 5×D) | 45 kW |
Drive
- Drive
- 4 rolls driven by independent hydraulic motors
- Rolls
- Synchronised; pinch roll swivels out, pressure adjustable
- Synchronization
- Automatic hydraulic roll parallelism
- Regulation
- Progressive or proportional (Danfoss motors and distributors)
- Prebending
- Tilting device; minimal flat portion of edges
- Opening Yoke
- Hydraulic control
- Positioning
- 4 grooves at 90° on each lower roll
- Lubrication
- Manual centralized
Controls
- Standard
- Digital displays for prebending roll position
- Options
- Hardened rolls, cone device, CN standard or touch screen, place trackers, EasyRoll
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