Company: Davi
Model: MAV
3-Roll plate rolling machine
The DAVI MAV series consists of variable axis plate rolling machines designed for demanding applications with large thicknesses and increased capacities.
Main advantages
- The top roll moves vertically like a press, while the two side rolls move horizontally to change the bed width of the sheet metal — offering an extremely small flat end and the ability to work with very thick sheets.
- All three rolls are driven/fed (“all rolls drive”) — a unique feature of the MAV series — ensuring superior torque transmission and eliminating sheet metal slippage.
- The patented Servo Tronic© system ensures perfect roll parallelism and bending accuracy, even in very demanding conditions.
- The machine frame is sturdy, compact, with a reinforced structure for high strength and longer life.
- The rollers (top & side) are tilting and independently movable, allowing for greater flexibility in bending conical shapes.
Technology & Productivity
- With the MAV series, sheet metal processing is achieved through a combination of cutting-edge technology and mechanical excellence:
- The variable axis and independently moving side rollers enable the processing of very large sheet metal thicknesses — for example, 26 mm to >300 mm.
- The tilt capability of the rollers and the precision of Servo Tronic ensure high bending quality, reducing deviation and achieving a small flat end.
- The drive of all rollers with independent motors and “Roll by Wire” technology reduce maintenance requirements and increase reliability.
Scope of Application
MAV is suitable for companies that need:
- Rolling of thick sheet metal or particularly demanding materials — such as components for petrochemical, shipbuilding, mining, and wind energy.
- Bending into conical shapes (cones) and complex geometries due to the inclination and independent movement of the rollers.
- Production that requires high precision, high repeatability, and reliability.
Technical Specifications — DAVI MAV
| Feature | Value / Range |
|---|---|
| Maximum sheet width | 3 000 mm – 4 500 mm (depending on model) |
| Maximum sheet thickness | 10 mm – 26 mm (depending on model, >300 mm for special models) |
| Roller type | 3-roll, variable-axis, all moveable |
| Upper roller diameter | ~300 mm – 350 mm |
| Side roller diameter | ~280 mm – 320 mm |
| Roller drive | Independent servo motors for all cylinders |
| Pre-bending / single pass roller capability | Supported, allowing for a small flat end |
| Roller inclination | Yes — side rollers and top roll can be tilted independently |
| Control system | CNC, fully automated, ability to store multiple programs |
| Rolling technology & precision | Servo Tronic© & Planetary Guides for precise parallelism and top-quality bending |
| Machine weight | ~8,000 kg – 15,000 kg (depending on model) |
| Production capacity | High precision and repeatability for heavy and medium production |
