- Home
- About
- Products
- Solutions
- Case Studies
- Resources
- Contact
A 4-roll plate bending machine features four independently rotating rollers: two main rolling rollers and two auxiliary pre-bending rollers. Unlike 3-roll machines that require multiple setups, a 4-roll completes pre-bending and full rolling in one continuous operation.
The plate enters horizontally. Pre-bending rollers apply initial curvature to eliminate straight edges. Simultaneously, main rolling rollers bend the plate into its final cylindrical form. Multiple passes gradually adjust curve radius to achieve finished coils with minimal straight edge and superior roundness.
One-setup cutting workflow time by 40%, built-in pre-bending removes flat edge defects, ±0.1mm electronic sync delivers ultra-tight forming tolerances, less material scrap, and standard CE certification for global export projects.
If you are a sheet metal fabricator, HVAC manufacturer, auto parts producer, pressure vessel factory or export-oriented workshop—and if you are pursuing high-efficiency, high-precision medium plate forming solutions matching global export standards—EZHONG CE-certified 4-roll bending units fit all your production specs, thickness ranges and budget. From standard CNC thin plate models to heavy-duty 100mm thick plate equipment, we supply customized forming solutions for all precision manufacturing scenarios.
Select the series that matches your production requirements — hydraulic heavy plate or automatic thin plate precision models
Choose between our hydraulic heavy plate and automatic thin plate 4-roll bending machine series
| Feature | Hydraulic Heavy Plate 4-Roll | Automatic Thin Plate 4-Roll |
|---|---|---|
| Model Series | EZW12 Series | EZW12X Series |
| Plate Thickness Range | 20–100mm | 6–50mm |
| Plate Width Range | 2000–4000mm | 2000–3000mm |
| Sync Accuracy | ±0.1mm | ±0.1mm |
| Electronic Balance | ±0.15mm | ±0.15mm |
| Control | Manual, NC, or CNC | CNC standard |
| Certifications | ISO/TS16949, CE | ISO/TS16949, CE, UL |
| Primary Applications | Pressure vessels, boilers, pipes | HVAC, automotive, appliances |
| Details | View Details → | View Details → |
Load plate → simultaneous pre-bending + rolling in continuous pass → unload finished coil. No removal, flipping, or repositioning. 40–50% faster than 3-roll + manual pre-bend workflows.
Servo-proportional directional control valves with closed-loop feedback ensure both upper and lower rollers stay within ±0.1mm of target position, delivering coils with ±0.5mm roundness—export-grade quality every piece.
High-precision position sensors on upper-roller ends continuously monitor alignment. Servo-proportional pressure compensators automatically adjust to maintain perfect horizontal levelness.
All 4-roll machines ship CE-certified standard. Ready for European, North American, and Asian markets without customs delays or re-testing.
Stainless-steel decorative cylinders, appliance boilers, precision vessels.
Spiral ducts, round pipe, flexible connectors for commercial systems.
Exhaust components, bumper cores, structural rings for cars & motorcycles.
Mid-sized pressure vessels, heat exchangers, reactor shells.
CE certification opens EU, North America, and Asian markets.
Choose 4-roll if plate thickness 6–50mm, precision critical (±0.5mm), production speed matters, exporting to EU/North America, or edge quality critical. Choose 3-roll if thickness ≥20mm, large-diameter coils, or budget-conscious.
Synchronization = how precisely upper and lower rollers move together. ±0.1mm means they stay within 1/10 of a millimeter of target position. Result: coils maintain roundness to ±0.5mm ID/OD—export-grade quality.
Yes, EZW12 (heavy-duty 4-roll) goes to 100mm. But at 80–100mm, efficiency advantage narrows. At 100mm+, 3-roll is more common practice.
Yes, CNC is standard on EZW12X and available on EZW12 as upgrade. Includes user-programmable coil profiles, real-time diameter feedback, preset recipes, and remote diagnostics.
Standard 4-roll: 3–5 months. Custom configs: 4–6 months.
