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Upper/lower rolls and dual side rolls adopt independent servo proportional drive + high-precision grating ruler full closed-loop feedback. System synchronizes four-roll motion trajectories in real-time; side rolls can dynamically and continuously adjust elevation following the program, achieving smooth continuous variable-curvature arc-line processing. Motion positioning accuracy ±0.05mm, arc-line transitions are natural with no inflection points or impact.
Classic four-roll structure: upper and lower rolls clamp the plate, dual side rolls perform bidirectional pre-bending without requiring plate turnover. Both end pre-bending processes are integrated into the same workstation; residual straight edge can be controlled to as low as ≤1.5× plate thickness. Significantly reduces cutting allowance and scrap, especially suitable for stainless steel and high-value alloy plate processing.
Upper and lower rolls are main drive rolls, equipped with high-torque servo motors. Under four-roll clamping condition, plate friction force is uniform. Servo system matches roll cylinder linear velocity in real-time, eliminating relative sliding between plate and roll surface, effectively preventing surface scratches on stainless steel and aluminum alloy plates. Low-speed and high-speed modes switch smoothly; thin and medium-thick plates achieve stable forming.
Work rolls adopt 42CrMo premium alloy steel integral forging, quenching and tempering + deep induction hardening; roll surface hardness is high while core toughness is strong. Wide-plate processing optionally equipped with multi-point dynamic deflection compensation device, offsetting roll cylinder bending deformation under pressure, ensuring uniform curvature along the entire arc line across plate width. Cylinder straightness and roundness meet ASME and GB pressure vessel standards.
Supports direct DXF/CAD drawing import; system automatically analyzes arc contour and generates continuous rolling program. Built-in springback database for carbon steel, pressure vessel plate, stainless steel, and high-strength steel; automatically calculates springback compensation based on plate thickness and yield strength. Supports graphic simulation preview; simulates forming trajectory before processing to prevent scrap in advance. Programs can be saved and batch-recalled. Open industrial Ethernet interface; can integrate with MES production lines; supports remote fault diagnosis and data collection.
Standard hydraulic flip-over unloading mechanism for rapid unloading after cylinder forming. Optional plate automatic centering device, infeed/outfeed load-bearing roller conveyors, workpiece following support brackets, conical cylinder rolling auxiliary mechanism. Optional roll surface hard chrome polishing treatment, compatible with stainless steel and mirror-finish plate processing.
Upper/lower rolls and dual side rolls adopt independent servo proportional drive + high-precision grating ruler full closed-loop feedback. The system synchronizes four-roll motion trajectories in real-time, with side rolls capable of dynamically and continuously adjusting elevation following programmed instructions, achieving smooth continuous variable-curvature arc-line processing.
Precision Metrics: Positioning Accuracy: ±0.05mm | Servo Response Time: <50ms | Arc-line transition smoothness: No visible inflection points
Classic four-roll structure: upper and lower rolls clamp the plate, dual side rolls perform bidirectional pre-bending without requiring plate turnover. Both end pre-bending processes are integrated in the same workstation, residual straight edge can be controlled to as low as ≤1.5× plate thickness.
Upper and lower rolls are main drive rolls, equipped with high-torque servo motors. Under four-roll clamping condition, plate friction force is uniform. Servo system matches roll cylinder linear velocity in real-time, eliminating relative sliding between plate and roll surface, effectively preventing surface scratches on stainless steel and aluminum alloy plates.
Work rolls adopt 42CrMo premium alloy steel integral forging, quenching and tempering + deep induction hardening; roll surface hardness is high while core toughness is strong. Wide-plate processing optionally equipped with multi-point dynamic deflection compensation device.
Traditional plate rolling equipment faces significant challenges when processing high-precision arc-shaped components.
High-strength structural steel frame, fully stress-relieved. Multi-pass welding with backing strips; 100% inspection. Frame deflection under full load meets precision requirements for arc-line forming across entire plate width.
Upper and lower main rolls 42CrMo forged steel with servo motors. Dual side rolls with independent servo motors + planetary reducers. High-precision grating ruler closed-loop feedback system ensures ±0.05mm positioning accuracy.
Servo proportional pump with pressure compensation. Integrated filtration & cooling oil tank. Closed-loop electro-hydraulic coordination enables real-time dynamic adjustment of side roll positions for continuous variable-curvature forming.
Self-developed variable-curvature dedicated control system. Supports DXF/CAD drawing import, automatic arc contour analysis, springback compensation database. Dual-language touchscreen with graphic simulation preview and industrial Ethernet interface.
| Model | Plate Width (mm) | Max Thickness (mm) | Pre-Bend (mm) | Motor Power (kW) | Rolling Speed (m/min) | Positioning Accuracy (mm) | Dimensions L×W×H (mm) |
|---|---|---|---|---|---|---|---|
| EZW12XS-8×500 | 500 | 8 | 6 | 15×4 | 2-8 | ±0.05 | 3500×1200×1800 |
| EZW12XS-12×1000 | 1000 | 12 | 8 | 22×4 | 2-8 | ±0.05 | 4200×1500×2000 |
| EZW12XS-16×1500 | 1500 | 16 | 12 | 30×4 | 1.5-7 | ±0.05 | 5000×1800×2200 |
| EZW12XS-20×2000 | 2000 | 20 | 15 | 37×4 | 1.5-6 | ±0.05 | 5800×2200×2400 |
| EZW12XS-25×2000 | 2000 | 25 | 18 | 45×4 | 1.2-5.5 | ±0.05 | 6000×2200×2500 |
| EZW12XS-30×2500 | 2500 | 30 | 22 | 55×4 | 1.2-5 | ±0.05 | 6500×2600×2800 |
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Q245R, Q345R, 16MnDR materials | Thickness 3-30mm | Multi-segment tangent arc shells, elliptical shells | Surface finish requirements high, no scratches or dents.
304/316L stainless steel | Thickness 3-20mm | Tank bodies, dust removal arc segments, air duct arc sections | Mirror surface protection, no surface damage.
Carbon steel, alloy steel | Thickness 5-25mm | Equipment protective covers, cylinder bodies, special arc-shaped structural components | High dimensional accuracy requirements.
Various materials | Thickness 3-30mm | Multi-segment variable-curvature arc plates, elliptical bodies, conical cylinders, special arc curved surface components | Continuous arc lines, smooth transitions.
High-strength steel, aluminum alloy thin plates | Thickness 3-12mm | Precision components requiring high surface quality | Anti-slip, anti-scratch process critical.
Special alloys, composite materials | Thickness 3-30mm | Customized arc components, irregular curved shells | Requires flexible program adjustment and high repeatability.
Challenge: Required multi-segment variable-curvature arc shells for special-shaped pressure vessels. Traditional equipment could only roll uniform-radius arcs; needed multiple segmented bends and manual splicing; arc lines were discontinuous with visible fold marks.
Solution:
EZW12XS-20×2000 with servo electro-hydraulic closed-loop coordination system + arc-line intelligent CNC.
Result:
Single-setup continuous forming of multi-segment variable-curvature arcs. Arc-line transition smooth with no inflection points. First-pass success rate increased from 45% → 92%. Production cycle reduced from 8 hours → 3 hours per piece.
Challenge: 304 stainless steel mirror-finish plates frequently scratched and slipped during rolling; rolling speed unstable; surface quality defect rate 15%; relied heavily on skilled operator technique.
Solution:
Integrated EZW12XS-16×1500 with all-roll synchronized drive anti-scratch process + optional hard chrome polished rolls.
Result:
Surface scratch rate dropped from 15% → <1%. Rolling speed stable and controllable. Reduced dependence on operator skill level. Customer complaint rate decreased by 85%.
Challenge: Arc-shaped protective covers required elliptical and non-standard arc forming. Residual straight edge from two-end pre-bending was long (≥3× plate thickness); needed secondary cutting; material waste high; multiple flipping setups caused large positioning errors.
Solution:
Deployed EZW12XS-25×2000 with single-setup bidirectional end pre-bending + elliptical cylinder forming capability.
Result:
Residual straight edge reduced from ≥3× → ≤1.5× plate thickness. Material utilization increased by 12%. Single-setup completion eliminated repositioning errors; product consistency significantly improved.
Challenge: Customized arc components with complex curvature variations; small batch sizes. Traditional equipment had long trial-rolling times; high scrap rate; batch production relied on skilled technicians; difficult to meet tight delivery schedules.
Solution:
Integrated EZW12XS-30×2500 with DXF drawing import + graphic simulation preview + program save/recall functions.
Result:
CAD direct programming; simulation verification before production prevents scrap. Program reusability enables quick batch changeovers. Trial rolling time reduced by 70%. Suitable for small-batch customized production.
The core difference is the servo electro-hydraulic closed-loop coordination system. Ordinary hydraulic CNC has slow synchronous response and cannot dynamically adjust side roll positions in real-time, making it difficult to achieve smooth continuous variable-curvature arc-line forming. EZW12XS adopts independent servo proportional drive + high-precision grating ruler feedback; side rolls can continuously and dynamically adjust elevation following the program with ±0.05mm positioning accuracy, supporting multi-segment variable-curvature arcs, ellipses, and conical cylinders.
Supports: (1) Conventional equal-radius circular arcs and cylinders; (2) Multi-segment tangent circular arcs (different radii smoothly connected); (3) Gradient curvature arc plates (continuously changing radius); (4) Elliptical cylinders; (5) Conical cylinders; (6) Special irregular arc-shaped shells. Programs can be generated by importing DXF/CAD drawings, with automatic arc contour analysis.
The classic four-roll structure with upper/lower roll clamping and dual side roll bidirectional pre-bending integrates both end pre-bending in the same workstation without requiring plate turnover. Residual straight edge can be controlled to ≤1.5× plate thickness (for example, 20mm thick plate has residual straight edge ≤30mm), significantly reducing cutting allowance compared to traditional equipment's ≥3× plate thickness residual edge.
Uses all-roll synchronized drive anti-scratch process: (1) Upper and lower rolls are main drive rolls with high-torque servo motors; (2) Four-roll clamping ensures uniform friction force distribution; (3) Servo system matches roll cylinder linear velocity in real-time, eliminating relative sliding between plate and roll surface; (4) Optional roll surface hard chrome polishing treatment. This combination effectively prevents surface scratches and slippage on stainless steel, aluminum alloy, and mirror-finish plates.
Yes. Supports direct DXF/CAD drawing import; system automatically analyzes arc contour and generates continuous rolling programs. Built-in springback database for carbon steel, pressure vessel plate, stainless steel, and high-strength steel; automatically calculates springback compensation based on plate thickness and yield strength. Supports graphic simulation preview to verify forming trajectory before processing, preventing scrap. Programs can be saved and batch-recalled, suitable for repeated production.
Motion positioning accuracy ±0.05mm. Wide-plate processing optionally equipped with multi-point dynamic deflection compensation device, ensuring uniform curvature along the entire arc line across plate width. Cylinder straightness and roundness meet ASME and GB pressure vessel standards. Suitable for high-precision pressure vessel shells, heat exchanger arc shells, and other precision components.
Very suitable. DXF drawing import + graphic simulation preview + program save/recall functions enable quick batch changeovers; trial rolling time reduced by approximately 70%. Arc-line intelligent CNC system lowers operator skill requirements; no need to rely on skilled technicians. Suitable for small-batch, multi-variety customized arc component production.
(1) Plate automatic centering device to prevent rolling axial deviation; (2) Workpiece infeed/outfeed electric load-bearing roller conveyors + following support brackets; (3) Roll surface hard chrome polishing treatment (stainless steel specific); (4) Conical cylinder forming auxiliary mechanism; (5) Industrial IoT remote operation and maintenance module; (6) Thin plate anti-crush flexible roll sleeves; (7) Enclosed oil temperature cooling servo hydraulic system.
Recommended 2-3 days on-site training covering: machine startup/shutdown, CNC system operation, drawing import and program generation, graphic simulation preview, parameter adjustment, emergency procedures. Chinese/English dual-language operation interface; arc-line intelligent CNC system lowers technical threshold. Operators become proficient within the first week; no extensive specialized metalworking experience required.
Suitable for: Q245R, Q345R pressure vessel plates; 304/316L stainless steel; P265GH; high-strength low-alloy steel plates; aluminum alloy plates; carbon steel; alloy steel. Thickness range 3-30mm, width range 500-2500mm. Built-in springback database supports automatic springback compensation for various material types.
Standard 24-month full warranty (parts + labor). Preventive maintenance recommended every 500 operating hours: servo hydraulic oil & filter change, bearing re-lubrication, seal inspection, grating ruler cleaning. Full PM service takes 8-10 hours. Extends to 5 years with maintenance contract. 24/7 technical hotline support; remote fault diagnosis via industrial Ethernet interface.
| Accessory | Lead Time | Function | Value Proposition |
|---|---|---|---|
| Plate Automatic Centering Device | 4 weeks | Prevents rolling axial deviation | Ensures plate centerline alignment; prevents product dimensional deviation |
| Workpiece Infeed/Outfeed Electric Roller Conveyors | 5 weeks | Automated material loading and unloading | Reduces manual handling labor; improves production efficiency |
| Roll Surface Hard Chrome Polishing Treatment | 3 weeks | Stainless steel and mirror-finish plate specific surface protection | Further reduces surface scratch risk; suitable for high surface quality requirements |
| Conical Cylinder Forming Auxiliary Mechanism | 6 weeks | Supports conical cylinder and tapered section forming | Expands machine application range; suitable for special-shaped component production |
| Industrial IoT Remote Operation and Maintenance Module | 4 weeks | Remote fault diagnosis, data collection, predictive maintenance | Reduces unplanned downtime; supports MES system integration |
| Thin Plate Anti-Crush Flexible Roll Sleeves | 5 weeks | Protects thin plates from crushing and surface damage | Suitable for thin plate (3-8mm) precision forming |
| Enclosed Oil Temperature Cooling Servo Hydraulic System | 6 weeks | Enhanced oil temperature control and cleanliness | Extends hydraulic system lifespan; suitable for high-intensity continuous production |
| Workpiece Following Support Brackets | 4 weeks | Dynamic support for large-diameter cylinders during forming | Prevents workpiece deformation and collapse; ensures forming quality |
| Multi-Point Dynamic Deflection Compensation Device | 7 weeks | Compensates roll deflection for wide plates; ensures uniform curvature | Critical for wide-plate processing; meets precision pressure vessel standards |
| Advanced Arc-Line Quality Inspection Software | 5 weeks | Real-time monitoring and recording of arc-line forming quality data | Enables ASME/PED compliance documentation; generates audit trails |