W12-4 Roller Plate Rolling Machine

CAMT W12 4-Roller CNC Plate Rolling Machine | Heavy-Duty Hydraulic Metal Plate Bender For Sale

Achieve precise pre-bending and rolling in a single pass. The CAMT W12 4-roller series delivers high accuracy (±0.1 mm synchronization), full hydraulic drive, and up to 50–80% higher productivity than traditional 3-roller machines — ideal for cylinders, cones, and complex curved components.
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W12 4-Roller Metal Plate Rolling Machine
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The CAMT W12 HMC4R Series is a true one-pass 4-roller plate rolling machine designed for high-precision circular and conical forming. Operators can feed the plate once and complete both end pre-bending and full rolling without ever reversing or flipping the material. This eliminates the traditional multi-step process of 3-roller machines, significantly reducing handling time, misalignment risk, and residual flat ends.

The upper roller acts as the main drive, while the lower and side rollers are independently powered by hydraulic cylinders. Computer-controlled vertical movement of the rollers ensures automatic leveling with a real-time synchronization accuracy of ±0.1 mm, clearly displayed on the control screen. After forming, the hydraulic rollover bearing body tilts open and a balancing mechanism allows the finished cylinder or cone to be removed quickly and safely.

A mobile, standalone control console gives the operator full freedom of movement around the machine. Combined with comprehensive safety interlocks, the system delivers both high productivity and secure operation. The result is a modern CNC rolling solution trusted by manufacturers in energy, petrochemical, boiler, shipbuilding, pressure vessel, and structural steel industries who need consistent accuracy and shorter cycle times on every job.

W12-4 Roller Plate Rolling Machine Specification

Model Max. Bending thickness (mm) Pre-bending thickness (mm) Max. Working length of rolls (mm) Yield limit (Mpa) Top roller diameter (mm) Bottom roller diameter (mm) Side roller diameter (mm) Main power (Kw)
W12-4x2000 4 3.5 2050 245 160 140 120 3
W12-6x2000 6 5 2050 245 190 170 150 4
W12-8x2000 8 6.5 2050 245 210 190 170 5.5
W12-10x2000 10 8 2050 245 230 210 190 7.5
W12-12x2000 12 10 2050 245 270 250 210 11
W12-16x2000 16 13 2050 245 300 270 220 11
W12-20x2000 20 16 2050 245 330 300 240 15
W12-25x2000 25 20 2050 245 360 330 250 15
W12-30x2000 30 25 2050 245 390 330 300 18.5
W12-35x2000 35 28 2050 245 430 390 330 22
W12-40x2000 40 32 2050 245 460 420 360 30
W12-45x2000 45 36 2050 245 510 460 390 37
W12-50x2000 50 40 2050 245 550 510 420 45
W12-4x2500 4 3.5 2550 245 190 170 150 4
W12-6x2500 6 5 2550 245 210 190 170 5.5
W12-8x2500 8 6.5 2550 245 230 210 190 7.5
W12-10x2500 10 8 2550 245 270 250 210 11
W12-12x2500 12 10 2550 245 300 270 220 11
W12-16x2500 16 13 2550 245 330 300 240 11
W12-20x2500 20 16 2550 245 360 330 250 15
W12-25x2500 25 20 2550 245 390 360 300 18.5
W12-30x2500 30 25 2550 245 430 390 330 22
W12-35x2500 35 28 2550 245 460 420 390 30
W12-40x2500 40 32 2550 245 510 460 390 37
W12-45x2500 45 36 2550 245 550 510 420 45
W12-4x3000 4 3.5 3100 245 210 190 170 5.5
W12-6x3000 6 5 3100 245 230 210 190 7.5
W12-8x3000 8 6.5 3100 245 270 250 210 11
W12-10x3000 10 8 3100 245 300 270 220 11
W12-12x3000 12 10 3100 245 330 300 240 11
W12-16x3000 16 13 3100 245 360 330 250 15
W12-20x3000 20 16 3100 245 390 360 300 18.5
W12-25x3000 25 20 3100 245 430 390 330 22
W12-30x3000 30 25 3100 245 460 420 360 30
W12-35x3000 35 28 3100 245 510 460 390 37
W12-40x3000 40 32 3100 245 550 510 420 45
W12-50x3000 50 40 3100 245 610 560 480 55
W12-60x3000 60 48 3100 245 670 620 520 75

Looking for more detailed specifications or a configuration that better matches your production needs? Contact our team to discuss additional parameters, customization options, or to receive a tailored quotation. We’re ready to help you find the right Plate Bending Machine solution.

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Key Advantages of CAMT W12-4 Plate Bending Machine

Zero Material Reversal & One-Pass Forming

Unlike traditional 3-roller machines that require pulling out and flipping the metal plate for edge pre-bending, the W12 4-roller design allows complete one-time feeding. It automatically finishes both end pre-bending and full cylinder rolling in a single continuous cycle, saving up to 60% in handling time and eliminating manual repositioning errors.

High-Precision Hydraulic Synchronization (±0.1mm)

Equipped with high-precision displacement sensors on both sides and real-time microcomputer monitoring, the upper and lower rolls maintain a synchronization accuracy within ±0.1mm. This guarantees strict concentricity and prevents cone or "barrel" shape defects during heavy-wall or long-span metal rolling.

Ultra-Small Flat Edge Remnants (Minimizing Waste)

The symmetrical and side roll configuration enables the workpiece to achieve a pre-bent flat edge shorter than any conventional rolling machine. This minimizes the unformed straight edge at both ends of the plate, saving expensive raw materials and reducing subsequent trimming or cutting costs.

Advanced 42CrMo Forged Heavy-Duty Rolls

The core working rolls are manufactured from premium 42CrMo alloy steel through professional forging, intermediate frequency quenching (HRC47–58), and precision finishing. This delivers superior tensile strength and surface hardness to withstand high-tonnage rolling of high-yield steel plates without deformation.

SIEMENS Smart CNC & One-Button Automation

Powered by a Siemens Smart Line HMI and intuitive CNC control system, operators can program complex rolling sequences, store hundreds of part profiles, and execute automated production cycles with minimal training. Manual override remains fully accessible for custom or trial runs.

Swing-Out Bearing & Hydraulic Balancing System

The rollover bearing body features hydraulic tilting and resetting combined with a built-in balancing mechanism. Once a full cylinder or closed-arc profile is completed, the top roll tilts effortlessly, allowing the operator to slide the finished workpiece off the machine smoothly and safely.

High-Performance 42CrMo Forged Working Rolls

As the core of the rolling machine, our work rolls are engineered for extreme durability and precision forming:

  • Premium 42CrMo Alloy Steel: Forged from high-strength 42CrMo steel to deliver superior core toughness and structural resilience under heavy tonnage, preventing roller deflection during thick-plate rolling
  • Precision Thermal Treatment (HRC47–58): Undergoes rough machining, quenching and tempering (HB240–300), followed by intermediate frequency induction hardening. This creates a wear-resistant surface hardness of HRC47–58 to eliminate scratching and premature wear.
  • Rigid Manufacturing Standards: Strictly built to JB/ZG4289-86 metallurgical standards, ensuring uniform hardness distribution and long-term dimensional stability for your production.

Industrial Safety & Electrical Reliability

Built to international industrial standards, our electrical and hydraulic systems guarantee safe, stable, and uninterrupted operation:

  • Schneider Electric Components: Equipped with world-class Schneider switchgear and control elements to ensure electrical safety, stable power distribution, and a significantly lower risk of system failure.
  • Precision Hydraulic Control: The integrated hydraulic valve module delivers ultra-smooth, responsive movement of the working rolls, ensuring absolute synchronization and operational precision.
  • Operator & Machine Protection: Features comprehensive safety interlocks and overload protection to safeguard both your operators and core mechanical components during high-tonnage fabrication
  • Heavy-Duty, Low-Noise Drive: Powered by a robust yet quiet motor designed for continuous, stable performance, extending the overall lifespan of the machine.
Electrical System of Rolling Machine

Contrl System About Rolling Machine

Automatic Rolling and Forming

Engineered for high efficiency and user-friendly operation, our advanced control system transforms complex rolling into a seamless, automated process:

  • Siemens Smart Line HMI: Features an intuitive, high-definition touchscreen interface that provides real-time monitoring of roller positions, pressure metrics, and machine status.
  • One-Button Automated Cycles: An independent pendant control console houses pre-programmed rolling recipes, enabling full cycle execution (from edge pre-bending to final round forming) in a single pass without manual intervention.
  • High-Capacity Recipe Storage: Built-in memory stores hundreds of customized rolling programs tailored to different plate thicknesses, materials, and radii for instant recall and repeatable precision.
  • Flexible Manual Override: Fully supports manual operation modes, giving operators complete control and flexibility for custom prototyping, trial runs, or specialized forming tasks.

Hydraulic Motor ⇨ Planetary Gearbox ⇨ Working Roll

Our advanced drive configuration delivers maximum power transmission efficiency and pinpoint positioning accuracy:

Direct-Coupled Hydraulic Drive: Hydraulic Motor ➔ Planetary Gearbox ➔ Working Roll. The upper roll is driven by an independent hydraulic motor coupled directly to a high-power gearbox, eliminating intermediate gear losses for the highest energy-efficient drive system in its class.

Precision Instant Braking: Equipped with an integrated instant-braking mechanism, the hydraulic motor ensures the roll stops dead on target during edge pre-bending, preventing slippage and guaranteeing exact bending angles.

Advanced Hydraulic & Closed-Loop Synchronization System

Engineered for absolute operational stability and pressure control, our robust hydraulic architecture ensures flawless synchronization under heavy loads:

  • Dual-Stage Pressure Regulation: Every hydraulic circuit is protected by dual relief valves. The primary valve is calibrated up to 25 MPa to safely manage main cylinder forming pressure, while the secondary valve is set to 16 MPa to precisely control overturning and balancing cylinders.
  • High-Precision Displacement Feedback: High-precision displacement sensors are mounted on both left and right frames and tilting mechanisms, tracking every movement in real time.
  • Microcomputer Closed-Loop Adjustment: The smart control system continuously monitors and adjusts main cylinder piston movements via pressure feedback sensors. This active closed-loop correction guarantees absolute parallelism and precision at both ends of the work rolls throughout the bending cycle.

Core Advantage

  • Versatile Forming Capabilities: Designed for intuitive operation, capable of producing accurate cylinders, tubes, and multi-radius arc profiles with exceptional consistency.
  • Full CNC Digital Readout: Complete numerical control provides real-time digital position readouts for every roller, ensuring repeatable accuracy across large-scale production runs.
  • High Efficiency & Energy Saving: Full hydraulic drive system cuts energy consumption to just 60% of traditional mechanical models while boosting overall productivity by 50% to 80% compared to standard 3-roller machines.
  • Superior Circle Precision & Alignment: Material feeding and alignment are fast and accurate, effectively eliminating plate misalignment (“wrong side” defects) and ensuring a perfect roundness profile.
  • Smallest Bending Diameter & Minimal Flat Edges: Achieves a minimum cylinder bending diameter as small as 1.1 times the top roller diameter, while leaving the smallest surplus flat edge of any rolling machine in its class to maximize material savings.

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FAQs When Purchase W12-4 Plate Bending Machine

What is the maximum plate thickness and width capacity of this machine, and can it handle high-yield structural steel?
The standard models accommodate plate widths from 2,000mm to 3,000mm and rolling thicknesses up to 60mm. The rated parameters in our datasheet are calculated based on a material yield limit of $245 \text{ MPa}$. For high-yield steels (e.g., Q355, Hardox, or stainless steel), our engineering team calculates the required derating factor based on your exact tensile strength and width requirements to ensure the machine operates safely without overload.
To match global electrical grids, we customize the main control and motor power supply according to your local standards (e.g., 380V/50Hz/3-phase, 415V/50Hz/3-phase, or 480V/60Hz/3-phase). All electrical panels comply with CE/ISO industrial standards, equipped with standard phase-loss protection and circuit breakers tailored to your regional safety codes.
Yes. The machine supports standard conical rolling by tilting the side rolls and adjusting the feeding angle to create uniform taper profiles. While cone rolling requires specialized operator skill, our Siemens HMI allows operators to store specific tilt angles and multi-step coordinates for repeatable conical fabrication, commonly used in silo and pipeline transition manufacturing.
Yes, a comprehensive foundation drawing and load-bearing layout are provided immediately after order confirmation. Due to the heavy tonnage and dynamic forces during thick-plate rolling, a reinforced concrete foundation of specified depth is required. We also supply leveling anchor bolts and shim plates along with the machine to facilitate precise anchoring.
We provide comprehensive remote video guidance and step-by-step digital operation manuals in English. For on-site commissioning, experienced mechanical and electrical engineers can be dispatched to your facility globally. Additionally, live-stream virtual training is available to train your local operators on calibration, routine maintenance, and CNC programing.
The machine comes with a standard 12-month warranty covering core structural components, hydraulic pumps, and electrical panels. For critical wear items or urgent spare parts, we maintain a well-stocked inventory and ship via international courier (DHL, FedEx, or air freight) with guaranteed fast dispatch to minimize your downtime.
For plates exceeding 16mm thickness, manual handling is unsafe and inefficient. We strongly recommend pairing the rolling machine with optional overhead crane lifting hooks, plate feeding tables, and overhead or side hydraulic support systems. These optional modules prevent plate sagging, secure heavy workpieces during feeding, and protect the surface from scratching.
Routine maintenance is straightforward and detailed in our English manual. It includes checking hydraulic oil cleanliness every 6 months, lubricating the main bearings and guide ways via the centralized automatic lubrication system, inspecting displacement sensor connections, and cleaning debris from the drop-end mechanism after processing carbon or stainless steel.
Yes, OEM and ODM customization is one of our core strengths. If your factory has specific height restrictions, alternative control console placements, or if you need to integrate the roller into an automated welding and production line, our engineering department can modify structural dimensions, hydraulic layouts, and PLC communication interfaces accordingly.
The machine is securely secured to a heavy-duty steel skid using bolted bracing. The entire unit is wrapped in moisture-proof vacuum barrier foil with desiccants to prevent rust from sea-air humidity, and enclosed in a fumigation-free export-grade plywood crate. Critical exposed components are coated with anti-corrosion grease for extra marine transit protection.

Have more questions, or need a customized Plate Bending Machine solution?
Contact our team for detailed advice, technical support, or a tailored quotation. We’re ready to help you find the right configuration for your production needs.

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