4hi Mills
4-high Cold Rolling Mills
DANIELI FRÖHLING‘s 4-High Mills are used throughout the Ferrous and Non-Ferrous Metals Industries. They are in operation for heavy gauge breakdown rolling, intermediate and thin strip finish rolling, as well as for cladding and temper rolling. Single stand Reversing Mills are the most flexible type of application, where the number of passes can be varied depending on material and thickness ranges.
Highlights
- Highly dynamic hydraulic roll gap adjustment; with double-acting roll load cylinders
- Positive and negative Work Roll Bending
- Multi-zone Work Roll Cooling (optional „hot-edge“) for thermal crown control
- Intelligent residual oil removal concept (“dry strip concept”)
- Quick Roll-Changing Systems
- High performance closed loop automatic thickness and flatness control systems
Optional features can be applied depending on application
- Work roll sets with different roll diameters
- Special roll gap adjustment cylinders, allowing huge roll force range; applied for combined reduction and Skin Pass Mill
- Independently driven work rolls (Twin Drive), with high torque spindles
- Z-high® insert for thin strip rolling