Premium 4-Roll Bending Machine for Metal Sheets – 30mm Max Thickness

• Customization: Available
• After-sales Service: Provided
• Type: Rolling Machine
• Model NO.: W12-30X2000
• Forging Forming Method: Mold Forging
• Power Source: Hydraulic Pressure
• Feature: Automation
• Certification: ISO9001, CE, SGS
• Warranty: 12 Months
• Customized: Customized
• Advantage: Work Flexible
• Condition: New
• Rollers Nos: 4 Rollers
• Roller Material: Forged 42CrMo
• Maximum Rolling Thickness: 30mm
• Pre-Bend Thickness: 25mm
• Transport Package: Wooden Pallet
• Specification: 5000mmX1800mmX2890mm
• Trademark: XTW Machine Tool
• Origin: China
• HS Code: 8474801000
• Production Capacity: 120 Sets Per Year
• Package Size: 510.00cm * 190.00cm * 260.00cm
• Package Gross Weight: 17000.000kg

Product Description

High-performance Four Rollers Plate Rolling Machine-W12-30X2000

1. Higher Precision Bending – The 4-roll system ensures better control over curvature, reducing errors and improving roundness.
2. No Pre-Bending Required – Unlike 3-roll machines, a 4-roll design can bend plate edges without needing pre-bending, saving time and labor.
3. Superior Material Handling – Handles thicker plates (up to 30mm) and longer lengths (2000mm) with stability.
4. Reduced Plate Slippage – The additional roll minimizes material movement, ensuring consistent bending.
5. Efficient Operation – Hydraulic or CNC-controlled models allow for faster, automated adjustments and repeatability.
6. Lower Residual Straight Ends – Eliminates flat spots at the ends of rolled plates, improving weld-ready finishes.
7. Wide Application Range – Ideal for steel, stainless steel, aluminum, and other metals in shipbuilding, boilers, and construction.
8. Energy & Cost Efficient – Reduces secondary processing, lowering operational costs.

Specification

Applications

1. Shipbuilding & Marine Engineering

Rolling thick steel plates (up to 30mm) for hulls, decks, and cylindrical components.
Precise bending of stainless steel pipes and structural parts.
2. Oil & Gas / Energy Sector

Fabricating pressure vessels, storage tanks, and pipelines (API/ASME standards).
Rolling high-strength alloy plates for offshore platforms and refineries.
3. Heavy Machinery & Construction

Producing boilers, wind turbine towers, and mining equipment.
Bending large-diameter structural beams and columns (up to 2000mm length).
4. Automotive & Aerospace

Forming chassis components, exhaust systems, and aircraft parts from aluminum/titanium.
5. Chemical & Pharmaceutical

Manufacturing corrosion-resistant reactors and silos (SS316/duplex steel).
6. General Metal Fabrication

Custom rolling for architectural metalwork, sculptures, and industrial frames.

Key Configurations

Bending Process Step-by-Step
Step 1: Plate Feeding
The metal plate is inserted between the lower rolls and the pinch roll, which grips the leading edge.
Step 2: Initial Pre-Bending (No Need for Separate Pre-Bending!)
Unlike 3-roll machines, the 4-roll design uses the pinch roll to bend the plate's edge in a single pass, eliminating flat spots.
Step 3: Progressive Rolling
The plate advances while the main upper roll presses down, gradually curving it into the desired radius.
The pinch roll adjusts dynamically to maintain consistent curvature.
Step 4: Completion & Unloading
Once the full circle or cone is formed, the rolls reverse to release the finished product.

Technical Specifications

(Custom configurations available upon request.)

Model	W12-20X2000	W12-25X2000	W12-30X2000
Machine Weight (kg)	7600	14000	16500
Motor Power (kW)	11	15	18.5
Bending yield	245
Max Rolling Thickness (mm)	20	25	30
Max Pre-Bending (mm)	16	20	25
Roller Working Length (mm)	2000
Top Roller Diameter(mm)	300	360	390
Bottom Roller Diameter(mm)	280	340	370
Side Rollers Diameter(mm)	240	280	320
Hydraulic System Max Pressure(MPA)	20	20	20

After Sales Service

Standard Warranty: 12 months or 3,000 operating hours (whichever comes first).
Extended Warranty: Optional coverage up to 36 months.
Global Support: 24/7 technical assistance and spare parts supply.
Training: On-site or remote operation/maintenance training.

Company Profile

Nantong XinTongWei Machine Tool Co., Ltd.

Nantong New Tongwei Machine Tool Co., Ltd.** specializes in manufacturing high-quality industrial machinery, including shearing machines, bending machines, and rolling machines. With advanced technology and strict quality control, we deliver precision metal-forming solutions for global clients. Committed to innovation and reliability, we serve diverse industries with efficient, durable equipment tailored to meet modern manufacturing demands. 

Why Choose Us?

Other Products

OEM/ODM capabilities
Competitive pricing & bulk discounts
Fast shipping & customs clearance support
Turnkey project solutions

Hydraulic Guillotine Shear
CNC Press Brake
CNC Plate Rolling Machine
Laser Cutting Machine

FAQ

Q: What’s the lead time for orders?
A: Standard models ship in 15–30 days; customized units require 30–45 days.

Q: Do you provide after-sales service overseas?
A: Yes, we have partnered service centers in key regions.

Q: Can I request a customized bucket size?
A: Absolutely! We offer tailored attachments.

Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).

Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.