W12 Four-Roll
Pre-Bending
Plate Roller
The W12 series 4-roll plate bending machine clamps the plate between the upper and lower rolls, then uses two independently adjustable side rolls for accurate pre-bending, rolling, and repeat production.
Four-Roll
Productivity
W12 is built for fabrication teams that need faster loading, accurate end pre-bending, CNC-ready operation, and consistent rolled parts across repeat batches.
Rolling Thickness Range
Reference W12 configurations cover plate rolling from 4mm to 50mm for common medium and heavy fabrication requirements.
Working Width Range
Listed models support working widths from 1500mm to 4000mm, giving shops a practical range for shells, tanks, ducts, and pipe sections.
Controlled Four-Roll Grip
The plate is clamped between the upper and lower rolls before bending, reducing slipping and making the process easier for operators to control.
Independent Pre-Bending
Two side rolls move independently so both plate ends can be pre-bent and rolled with fewer handling steps than conventional three-roll machines.
Hydraulic 4-Roll Structure
W12 combines a fixed upper roll, vertically moving lower roll, and two independently controlled side rolls to simplify plate feeding, pre-bending, circular rolling, and cone rolling workflows.
The upper roll works as the main forming reference. The lower roll rises to clamp the plate, while the two side rolls move to shape the plate into cylinders, arcs, or transitional forms with stable support.
Because the plate is held by the upper and lower rolls, operators can pre-bend both ends with less repositioning. This reduces straight edges and helps improve shell roundness before final rolling.
The W12 platform can be configured with PLC or CNC control for roll position setting, repeatable bending programs, easier batch production, and more predictable results between operators.
Cone rolling devices, top supports, and side supports can be selected for tapered shells or large-diameter workpieces that need additional guidance and handling stability during forming.
W12 is suited for tanks, cylinders, pipes, pressure-vessel components, ventilation ducts, wind-power parts, shipbuilding sections, and repeat rolled parts where speed and consistency matter.
Built for Repeat Rolling
Pre-Bend and Roll in One Setup
The four-roll structure clamps the plate between the upper and lower rolls before forming begins. Operators can pre-bend both ends and continue into circular rolling with fewer repositioning steps, helping reduce straight ends and handling time.
Best for tanks, cylinders, ducts, and repeat shell production.
Programmable Roll Position Control
PLC or CNC control can store roll positions and forming programs for recurring jobs. This supports more consistent diameters between batches, easier operator training, and better repeatability for production environments.
Useful when one workshop repeats the same diameters, materials, and widths.
Plate Alignment Before Forming
The lower roll lift and side-roll adjustment help square and grip the plate before bending force is applied. Better plate control reduces slipping and makes the first forming pass more predictable.
Helps operators control large or heavy sheets with less manual correction.
Expand Your Rolling Range
Configure W12 with support, control, and forming options for larger diameters, cone work, heavier plates, and production repeatability.
Recommended for large-diameter cylinders and thin shells.
A top support helps hold large-diameter shells as they close, reducing sagging and making it easier to control heavy or wide workpieces during the final rolling stage.
Helpful for single-operator handling and heavier fabrication cells.
Hydraulic side supports assist plate feeding and shell handling, especially when the workpiece becomes long, wide, or difficult to balance during repeated rolling passes.
Use for funnels, transition sections, hoppers, and tapered tanks.
Cone rolling devices guide tapered shells and help control the different rolling radii required across the workpiece width.
Recommended for batch production and multi-shift operation.
CNC control upgrades make roll-position programming, saved recipes, and repeat bending sequences available for operators who need stable output across batches.
Match the final package to local safety requirements and duty cycle.
Emergency stop devices, protection barriers, hydraulic overload protection, and oil cooling options help maintain safer, more stable production during demanding rolling work.
Technical Parameter
Compare W12 4-roll plate bending machine models by rolling thickness, pre-bending thickness, working width, minimum rolling diameter, roller diameter, motor power, and weight.
* Reference data is based on 245 MPa plate yield limit. Final configuration may vary by material grade, minimum diameter, cone rolling requirement, CNC controls, and support device selection.
Ready to
Master Your
Production?
Tell us your plate material, thickness, working width, minimum rolling diameter, pre-bending requirement, target output, and whether you need CNC control, cone rolling, top support, or side support. Our engineering team will recommend the right W12 configuration.