The PRIMAPRESS W12 series four-roller plate rolling machine is an industry-leading solution designed for high-efficiency bending in petroleum, chemical processing, cement manufacturing, boiler production, shipbuilding, aerospace, water conservancy, and power tower construction. Engineered for heavy-duty use, this machine adopts rotational bending deformation technology and eliminates the need for auxiliary pressing equipment thanks to its flexible upper roller that can move vertically and horizontally—enabling pre-bending, rolling, and precision correction in a single operation.
Robust Structure & European Engineering
- Streamlined European Design with a strong and stable welded steel frame (ST-52)
- All roll shafts, bearings, and materials are of European quality
- High torque capacity ensures reliable performance in demanding applications
- Optional NC playback and graphical control systems available for automation
W12 Series Four-Roller Plate Rolling Machine Composition
The complete structure of the PRIMAPRESS W12 includes:
- Upper and lower rollers
- Horizontal movement system
- Supporting frame
- Hydraulic main drive and overturning mechanism
- Right and left machine frames
- Base chassis and balance system
- Hydraulic and electrical control units
The MH model specifically features hydraulically powered upper and lower rollers driven by a planetary gearbox system.
Key Features of the W12 Four-Roller Plate Rolling Machine
High-Precision Pre-Bending
Easily adjust plate width while the upper roller applies pre-bending pressure at the plate edge.
Continuous Rolling Capability
The upper roller has a drum-style design supported by carrier rollers to ensure smooth and efficient rolling of thick and thin plates alike.
Fixed Bottom Rollers for Enhanced Safety
Only the upper roller moves vertically and horizontally, ensuring the plate stays stable during operation.
Integrated Frame Design
Compact structure with a reinforced base allows the entire machine to be relocated without anchor bolts.
Flexible Control Options
Available in top and bottom numerical control models for different operation preferences and production needs.
Cone and Cylinder Forming
Thanks to PRIMAPRESS’s proprietary technology, the W12 series can form conical shapes just as easily as cylindrical ones—without surface damage or the need for additional grinding.
Intelligent NC Control System with PLC Touch Display
- Advanced HMI (Human-Machine Interface) for intuitive operation
- Self-compensation and auto-adjust features for consistent output
- Enables single-person operation—increasing productivity and reducing labor costs
- Choose from cost-effective NC models to high-end TC CNC systems
Manufacturing Excellence & Quality Control
Main Production Components Include:
- Working Rollers: Made from 42CrMo alloy steel, processed through chemical analysis, forging, flaw detection (UT/MT), heat treatment, and precision CNC finishing.
- Large Forged Parts: Gearboxes, shafts, and cylinder bodies are subject to rigorous surface inspection, heat treatment, and machining.
- Welded Structural Parts: Frames, bases, and wheel boxes are produced through certified processes involving cutting, welding, annealing, and stress relief.
- Sheet Metal Preparation: Plates are tested for chemical/mechanical properties, cut, welded, annealed, and surface-treated for durability and accuracy.
High-End Configuration & Components
| Component | Brand / Origin |
|---|---|
| Main Motor & Power | Siemens (Germany) |
| Electronic Components | Schneider (France) |
| Bearings | Double-row self-aligning (Germany) |
| PLC Controller | OMRON (Japan) |
| Hydraulic System | Bosch-Rexroth (Germany) |
| Gear Pump | Taiwan |
| Work Rollers | 42CrMo Alloy Steel |
| Touchscreen Display | Delta |
| Transducer | OMRON (Japan) |
| Lubrication System | Sino-Japanese Joint with Alarm Notification |
Why Choose PRIMAPRESS W12 Series?
With precision engineering, premium materials, and intelligent control systems, the PRIMAPRESS W12 four-roller hydraulic plate rolling machine delivers unmatched performance, safety, and flexibility. Whether you’re forming cylinders, cones, or complex metal curves, this machine ensures efficiency, accuracy, and long-term durability for high-volume industrial applications.
Contact us today for specifications, pricing, and expert guidance!
