Overview of W12 Series 4 Rolls Rolling Machines
The W12 four-roll plate rolling machine is an advanced metal forming solution designed to efficiently handle pre-bending and rolling operations without the need to turn the plate. With a minimized remaining straight edge and robust structure, this machine is the ideal equipment for fabricating cylindrical, curved, and conical workpieces.
How Does W12 Series Performance Stand Out？
✅ Easy Operation & Versatile Bending Shapes
Capable of producing rich bending shapes with minimal manual input.
✅ CNC Control with Digital Readout
Roller positions are precisely controlled by CNC, ensuring high accuracy and repeatable results.
✅ Full Hydraulic Drive System
Compared to traditional systems, it delivers 60% energy savings with powerful performance.
✅ Boosted Productivity
One-time forming process increases productivity by 50%–80% compared to three-roll bending machines.
✅ Accurate Material Alignment
Prevents misalignment during rolling, reducing errors and waste.
✅ Cone Bending Capability
Equipped with a cone bending device for conical workpiece production.
✅ Permanent Lubrication System
Bearings are permanently lubricated—no need for refueling, ensuring long life and low maintenance.
✅ Top and Bottom Roller Clamping
Ensures firm clamping without slippage, improving rolling accuracy and stability.
✅ Smallest Bending Diameter
The minimum cylinder bending diameter is only 1.1× the top roller diameter, with a shorter straight edge than other machines.
✅ Optional Feeding, Carrying & Supporting Devices
These accessories can be easily integrated for enhanced automation and handling.
✅ CE Certified
Ensuring compliance with European safety and quality standards.
Working Process and Structure
The W12 four-roll machine supports both symmetrical and asymmetrical bending, depending on the roller arrangement. Compared to traditional three-roll machines, it performs pre-bending and rolling in one pass, eliminating the need for a press brake to prebend the plate ends.
Pre-Bending Mechanism
Pre-bending is achieved by:
- Lifting the lower roll to clamp the steel plate.
- Tilting the side roll upward to pre-bend the plate end.
Controlled by an intelligent PLC programmable system, the lifting of the lower and side rolls is:
- Automatically leveled
- Displayed in real-time via a digital screen
- Accurate to within ±0.15 mm
Rolls can tilt and rise simultaneously, allowing seamless bending even for complex geometries.
Driving System
The upper and lower rollers are the primary drive rollers.
Friction between the rollers and the plate drives the side rollers to rotate, enabling torque transfer.
Hydraulic drive system synchronizes roll speeds, compensates surface speed differences, and balances rolling force.
Each hydraulic motor is equipped with an instant braking system to:
- Halt the rollers precisely during pre-bending.
- Minimize residual straight edges.
- Prevent plate slippage and ensure precise plate end positioning.
The planetary reduction system powering the hydraulic motors offers:
- Compact design
- High torque transmission
- Space-saving structure
- Excellent environmental adaptability
Why Choose the W12 4-Roll Plate Rolling Machine?
Whether you’re fabricating tanks, ducts, structural steel components, or conical parts, the W12 four-roll rolling machine stands out for its automation, precision, and performance. It’s a perfect match for industries demanding high productivity, reduced rework, and consistent quality.
Upgrade your metal forming process today with the W12 4-roll plate rolling machine—where innovation meets efficiency.
