What coil processing equipment does Wuxi Jianfa manufacture?

We manufacture complete coil processing lines: slitting lines (rotary shear lines), cut to length lines, flying shear production lines, leveling machines, straightening machines and galvanizing production lines. Equipment can be supplied as a complete line or as individual machines to upgrade an existing line.

Which materials can your slitting and cut to length lines process?

Our lines process hot-rolled, cold-rolled, galvanized, stainless steel and aluminum coils, including high-strength grades. Each line is configured around your thickness range, coil width, yield strength and surface-quality requirements.

How do I choose between a slitting line, a cut to length line and a flying shear line?

Choose a slitting line when you need narrow strips recoiled for tube mills, roll forming or stamping. Choose a cut to length line when you need flat, stacked sheets or plates. Choose a flying shear line when you need high-volume sheet output, because the shear cuts while the strip keeps moving. Combined slitting and cut to length lines are also available.

What information should I send to receive an accurate technical proposal?

Please share the material grade and yield strength, coil thickness and width range, maximum coil weight and inner/outer diameter, required output (strip widths and count, or sheet length range), tolerance and flatness requirements, target line speed and the power supply at your plant.

Do you support installation, commissioning and operator training overseas?

Yes. Our after-sales team supports installation, commissioning and operator training, and continues with remote technical support and spare parts supply after start-up.

Can I visit the factory and inspect my equipment before delivery?

Yes. Buyers are welcome to visit our 40,000 m² facility in Wuxi, Jiangsu, within easy reach of Shanghai by high-speed rail, to review production and inspect their equipment before delivery.

High-Quality Automatic Leveling Machine Manufacturer & Manufacturers

Primary Engineered Machinery Showcase

Engineered for high-yield flat-rolled metal processing: heavy-plate roller leveling, rotary slitting lines, and moving cut-to-length technology.

High Strength Automatic Leveling Machine

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Professional Straightening Machine Line

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Hot Rolled Plate Moving Flying Shear Line

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Stainless Steel Coil Uncoiling-Leveling-Shearing-Stacking Line

Stainless Steel Uncoiling-Leveling-Shearing-Stacking Line

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HR Coil Slitting, Leveling & Cut-To-Length Line

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Hot Rolled Sheet Slitting and Recoiling Line

Hot Rolled Sheet Slitting & Recoiling Line

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High-Speed Heavy HR Uncoiling-Slitting Line

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HR Coil Uncoiling Leveling Shearing Stacking Line

HR Continuous Leveling, Shearing & Stacking Line

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Global Leveling Technology Shifts & Procurement Demands

A macroeconomic engineering white paper detailing the transition from static mechanical flattening to adaptive servo-hydraulic leveling systems.

Handling Ultra-High-Strength Steels (AHSS)

The global automotive and structural sector has widely adopted AHSS (Advanced High-Strength Steel), including DP980, CP1180, and martensitic alloys exceeding 1200 MPa yield strengths. Conventional levelers suffer catastrophic roll deflection and elastic springback under these extreme residual loads.

Modern procurement demands hydraulic automatic gap compensation, localized multi-point roll bending, and four-high / six-high cluster support assemblies capable of inducing controlled cyclic plastic deformation beyond the neutral fiber axis.

Closed-Loop Optical Surface & Flatness Feedback

Global fabricators no longer accept subjective visual assessment. Search intent across procurement desks focuses on in-line flatness measuring systems using multi-channel laser triangulation sensors.

By capturing real-time I-Unit deviation data directly at line speeds up to 120 m/min, the automatic leveling machine calculates corrective hydraulic wedge positions on fly, eliminating center buckles, cross bow, and edge camber without stopping production runs.

Automated Cassette Rapid-Change Systems

Processing lines that handle mixed inventories—such as switching between 0.5mm cosmetic stainless and 16.0mm structural hot-rolled plate—face massive downtime bottlenecks during manual roll cleaning and maintenance.

Tier-1 manufacturers prioritize fully automated cassette exchange systems, allowing dual or triple cassette assemblies to slide out hydraulically in under 8 minutes, dramatically shrinking overall setup overhead.

40+ Yrs Metallurgical Track Record

40,000 m² Modern Manufacturing Facility

30+ Global Destination Countries

±0.2 mm/m Precision Tolerancing

Enterprise Solutions: From Primary Mill To Precision Laser Cutting

How Wuxi Jianfa machine-building technology addresses non-linear stress states, internal micro-tensions, and extreme surface-protection demands.

Laser Blanking & Stress Elimination

Unrelieved internal stresses cause sheets to bow, twist, and strike laser cutting heads, creating downtime and tool wreckage. Our automatic leveling machines deliver over 70% to 80% plastic deformation on entry rolls, progressively dampening down to zero residual stress at exit, guaranteeing stay-flat blanks.

Heavy-Gauge Construction Machinery

For high-tensile structural steel used in crane booms, yellow goods, and maritime shipping, plate thicknesses reach 25mm to 32mm. Our heavy-duty levelers utilize forged 42CrMo roll assemblies, deep carburizing, and high-rigidity portal frames designed via FEA analysis to mitigate mechanical frame stretching.

Cosmetic Stainless & Mirror Aluminum

Processing mirror-finish, hairline, and anodized aluminum coils requires strictly non-marking handling. We integrate chrome-plated, super-finished leveler rolls (Ra ≤ 0.05 μm) coupled with synchronous motor drives to eliminate scuff marks and slippage micro-scratches.

Machine System / Parameters	Light-Gauge Precision Leveler	Medium Plate Flying Shear Line	Heavy-Gauge Structural Straightener
Workable Thickness Range	0.2 mm – 3.0 mm	1.5 mm – 12.0 mm	6.0 mm – 32.0 mm
Roll Arrangement Structure	19-roll to 23-roll (6-High Cluster)	13-roll to 17-roll (4-High / 6-High)	9-roll to 11-roll (High-Torque 4-High)
Yield Strength Handling	Up to 650 MPa (Stainless/Alloy)	Up to 980 MPa (Automotive HSLA)	Exceeding 1200 MPa (Q690/Hardox)
Operating Processing Speed	Up to 120 m/min	Up to 80 m/min (Sync Shear)	Up to 35 m/min
Primary Application	Automotive exterior, HVAC, Appliances	Steel service centers, stamping blanks	Shipbuilding, pressure vessels, yellow goods

Localization, International Compliance & Engineering E-E-A-T

Operational safety, electrical grid adaptability, and worldwide technical field commissioning guaranteed across 30+ countries.

CE, UL & ISO 9001 Compliance

Full machine construction aligns with European Machinery Directive 2006/42/EC, EN ISO 12100 safety frameworks, and North American UL/CSA electric panel configurations. Engineered with dual-channel emergency safety interlocks, optical light curtains, and integrated lockout-tagout (LOTO) protocols.

Grid Voltage & Environmental Adaptation

Exported machines are calibrated for fluctuating utility conditions: 380V, 415V, 440V, or 480V three-phase systems at 50Hz/60Hz. Hydraulic cooling loops are tailored specifically for tropical Gulf conditions or sub-zero Eurasian operating mills.

Industrial IoT Remote Telemetry

Every automatic leveling line features encrypted cloud gateway architecture (VPN-secured PLC link). Our senior metallurgical controls engineers in Wuxi diagnose roll deflection curves, motor thermal limits, and hydraulic pressures real-time anywhere on earth.

Global On-Site Deployment & Spare Parts

From foundational anchoring to cold and hot commissioning with trial master coils, Jianfa field engineers deploy directly to customer job sites. Critical high-wear spare parts (bearings, seals, replacement knives, and leveler rolls) ship with global logistics redundancy.

Core Specialized Production Lines

Original high-capacity heavy machinery lines from the Wuxi Jianfa manufacturing engineering portfolio.

Future Roadmap: AI Autonomous Leveling & Smart Factory Integration

The convergence of neural networks, metallurgical simulation, and green energy recovery in high-output coil handling lines.

AI Digital Twin & Predictive Plasticity

By simulating coil thickness variations, entry yield variances, and coil curvature profiles with a finite element neural network, the controller pre-sets the optimal entry/exit roll penetration values before the strip even reaches the first leveling bank, driving setup waste to zero.

Regenerative Drive Topologies & Decarbonization

Deceleration of heavy uncoiler drums and synchronized flying shears generates high kinetic back-EMF. Our lines utilize regenerative common DC bus variable frequency systems, returning up to 32% of electrical energy back into the plant grid, directly cutting plant carbon intensity.

Autonomous MES & ERP Handshake

Modern production facilities run unmanned coil yards. Jianfa automatic leveling machines integrate OPC-UA, Profinet, and MQTT protocols to seamlessly interface with upper-level Manufacturing Execution Systems (MES) for hands-free coil recipe downloads and automated pallet labeling.

Technical & Commercial FAQ for Engineering Buyers

Clear, direct engineering evaluations regarding roller leveling geometry, machine sizing, and factory deployment.

What is the fundamental difference between a standard straightener and an automatic roller leveler?

A standard straightener typically features 5 to 7 unbacked rolls and only rectifies macroscopic coil set (longitudinal longitudinal curvature). An automatic precision leveling machine employs 13 to 23 backed rolls arranged in 4-high or 6-high configurations, capable of flexing individually via hydraulic backup wedges. This eliminates edge wave, center buckle, camber, and residual cross-sectional internal stresses.

How do you calculate the optimal roll diameter for mixed production inventories?

Roll diameter dictates the minimum and maximum plastic deformation achievable for a given material yield. Smaller roll diameters (e.g., 25mm to 40mm) are essential for thin strip (0.3mm - 2.0mm) to reach yield without destructive forces. Heavy plate (up to 25mm) requires 160mm to 220mm+ rolls to avoid roll neck shear. When inventories span both extremes, we supply dual-cassette exchange systems with dedicated roll sizes.

What foundation and civil engineering works are needed prior to machine delivery?

Jianfa provides comprehensive certified static and dynamic loading civil drawings 60 days before dispatch. Standard cut-to-length lines require isolated reinforced concrete foundations with anchoring pockets and dedicated looping pits. Self-contained compact leveling machines can often be floor-mounted on vibration-dampening wedge anchors depending on soil load ratings.

How does your leveling machine control edge waves versus center buckles?

Edge waves occur when strip edges are longer than the center; center buckles occur when the center is longer. Our hydraulic leveler actively adjusts multi-point intermediate backup support rollers. To fix edge wave, center backup rolls are adjusted downward to stretch the center material to match edge lengths. To fix center buckle, the outer backup assemblies are forced downward.