High-Quality Tension Leveller Line Supplier & Factories

Q: 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.

Q: 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.

Q: 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.

Q: 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.

Q: 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.

Q: 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.

Engineering Heavy-Duty Continuous Tension Levelling Systems & Coil Processing Lines Since the 1980s. Optimizing Residual Stress Relieving, Surface Critical Precision, and Continuous Flatness.

Precision Engineering Solutions

High-Precision Coil Processing & Tension Levelling Machinery

Configured specifically to mitigate yield variations, surface scratches, and internal strip tension across all alloy grades.

High Strength Leveling Machine

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Professional Straightening Machine

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Hot Rolled Plate Moving Shear Line

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Stainless Steel Coil Uncoiling-Leveling-Shearing-Stacking Line

Stainless Steel Coil Uncoiling-Leveling-Shearing Line

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Hot-Rolled Coil Uncoiling-Slitting-Leveling-Cut-To-Length-Stacking Production Line

Hot-Rolled Combined Slitting & Cut-To-Length Line

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Hot Rolled Sheet Uncoiling, Slitting and Recoiling Production Line

Hot Rolled Sheet Slitting & Recoiling Production Line

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Heavy Duty HR Slitting and Strip Recoiling Line

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Hot Rolled Sheet Uncoiling-Leveling-Shearing-Stacking Production Line

HR Sheet Uncoiling-Leveling-Shearing-Stacking Line

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Industry Macro Intelligence

Macro-Industrial Landscape: The Transition to High-Performance Tension Levelling

Analyzing global metallurgical requirements, yield stress control, and the mechanical evolution of flatness correction.

Global Flatness Tolerances (I-Unit Standards)

Modern automotive skin panels and precision battery foils require strip tolerances tighter than 3 to 5 I-Units. Traditional roller levelling cannot fully eliminate asymmetrical cross-bow or center buckles under dynamic coil run. Continuous tension levelling lines achieve complete plastic deformation across the entire strip cross-section, equalizing fiber elongation permanently.

Residual Stress Suppression

Downstream processes like fiber-laser cutting and deep stamping release latent mechanical stresses, causing plate warp. Our Tension Leveller Lines incorporate dual-bridle tension systems that stretch strip fibers between 0.3% and 2.5% beyond their elastic limit, ensuring laser-flat plates that remain dimensionally stable during aggressive secondary cutting operations.

Advanced High-Strength Steels (AHSS)

With automotive light-weighting shifting demand to AHSS grades (DP980, CP1180, and QP steels), leveling machines face severe roll fatigue and frame deflection. Jianfa integrates high-torque gearboxes, hardened tungsten carbide back-up rolls, and CNC-driven roll intermesh controls that reliably handle extreme yield strengths without mechanical chatter or surface pick-up.

Kinematics & Engineering Benchmark

Engineering Comparison: Tension Leveller Line vs. Standard Roller CTL

A granular look at the mechanics, yield profiles, strip corrections, and continuous production speeds.

Evaluation Parameter	Continuous Tension Leveller Line	High-Precision Roller Leveller CTL	High-Speed Flying Shear Line
Primary Correction Mechanism	Simultaneous continuous axial tension + multi-roll cyclic reverse bending	Pure cyclic alternating bending over backed-up work rolls	Dynamic synchronized shear cutting with high-torque levelling
Internal Stress Distribution	Completely homogenized; eliminates longitudinal/transverse residual gradients	Reduces superficial tension; latent stress may trigger springback during laser cutting	Balanced across medium-to-heavy gauges; designed for continuous throughput
Attainable Flatness Quality	< 1 – 3 I-Units (Automotive Class A & Electronic Enclosures)	4 – 8 I-Units (Standard Structural & Commercial Sheet)	5 – 10 I-Units (High-Output Stamping Pallet Supply)
Strip Thickness Range	0.1 mm – 3.0 mm (Specialized for thin/medium high-strength strip)	0.5 mm – 25.0 mm (Covers heavy structural plates & hot-rolled coil)	1.0 mm – 16.0 mm (Continuous cycle without line stop)
Yield Point Elongation Control	Accurate mechanical elongation control (0.2% - 3.0% via speed differential bridles)	Dependent on mechanical screw-down depth and hydraulic back-up wedging	Continuous speed regulation integrated with dynamic measuring roller

Enterprise Authority

Wuxi Jianfa Machine-Building: 40+ Years of Manufacturing Integrity

Operating as a key developing enterprise in China's metallurgical machinery industry since the early 1980s.

40+

Years of Proven Heritage

Engineering metallurgical machinery since the early 1980s

40,000

m² Production Base

Self-owned precision machining, CNC floor boring, and assembly floor

45M

RMB Registered Capital

Financial strength guaranteeing multi-line contract execution

200+

Technical Experts

Dedicated mechanical engineers, PLC programmers, and QA technicians

Regulatory & Regional Support

Global Compliance, Safety Standards & Local Field Engineering

Engineered for global mill installations with localized after-sales readiness and strict safety standard certifications.

CE & OSHA Safety Integration

Every line is built in full compliance with European CE Directives (EN ISO 12100, EN 60204-1) and OSHA machinery safety codes. Features include redundant fail-safe light curtains, electro-mechanical safety gate interlocks, hydraulic pressure release mechanisms, and emergency braking torque controls across entry and exit tension bridles.

Grid & Drive Interoperability

Our electrical drive architectures support 380V, 415V, 460V, and 480V installations at both 50Hz and 60Hz. Jianfa standardizes on Siemens S7-1500 / Rockwell ControlLogix platforms with regenerative AC multi-drive systems that recover braking energy during strip deceleration, slashing line energy usage by up to 25%.

On-Site Commissioning & SLA

Supported by our field engineering hubs and overseas dispatch protocol, we provide complete mechanical alignment, foundation verification, laser tracking, wet commissioning, and certified operator training. Remote diagnostics via encrypted VPN allow our software engineers in Wuxi to troubleshoot PLC faults in real time.

Field Scenarios

Localized Applications & Industrial Case Paradigms

Reviewing how our tension levelling and coil lines perform under diverse manufacturing requirements worldwide.

North America: Class-A Automotive Skin Processing

A Midwestern steel service center required guaranteed elimination of coil camber, crossbow, and reel breaks on exposed 5000-series aluminum and zinc-coated steel coils. Jianfa deployed a complete Tension Levelling Line with 6-high cassette architecture, sub-micron roll deflection compensation, and non-marking chromium-plated rolls, delivering panels ready for robotic laser blanking.

East Asia: EV Battery Copper & Aluminum Foil

Processing ultra-thin aluminum foil (0.08 mm - 0.3 mm) for battery tab substrates requires micro-tension stability to prevent strip necking or edge tearing. Our low-inertia tension bridles with high-resolution digital load cells maintain web tension within ±0.5% variance at processing speeds exceeding 180 m/min.

EMEA: Stainless Architectural & Elevator Fascia

Handling BA and mirror-finished #4 AISI 304/316 coils without marking requires flawless leveling kinematics. Jianfa installed a continuous tension leveler paired with dual-side protective PE film applicators and an automatic paper uncoiler/recoiler, serving prestigious architectural building projects in Turkey and UAE.

Future Engineering

Technology Roadmap: Closed-Loop AI & Zero-Carbon Coil Processing

How Wuxi Jianfa is driving the next era of smart manufacturing, autonomous flatness tuning, and energy optimization.

AI Optical Topography Inspection

Integrating non-contact laser triangulating scanners directly post-levelling to read full-width 3D surface topography at 200 m/min. In-line algorithms automatically calculate real-time I-Units, instantly sending micro-adjustments to individual hydraulic roll back-up cylinders to close the feedback loop without human intervention.

Kinetic Energy Recovery Systems (KERS)

By coupling continuous tension bridle motors through a common DC bus drive topology, the mechanical braking power generated by entry bridle rolls is directly channeled into driving the exit bridles and recoiler. This reduces net factory electrical demand by up to 28% compared to traditional eddy-current braking systems.

Predictive Bearing & Roll Wear Analytics

Vibration acceleration sensors mounted on work-roll journals and backup bearings feed high-frequency operational signatures into edge-computing PLCs. The system forecasts bearing spalling, roll wear thresholds, and roll-change cycles well in advance, avoiding unexpected line downtime and maintaining uniform strip pressure.

Audited Quality Assurance

Verified Quality Certifications & Engineering Accreditations

Inspect our audited certifications in full resolution before scheduling factory acceptance testing (FAT).

Technical FAQ

Engineering Questions Answered by Plant Specialists

Detailed technical answers for line managers, metallurgists, and plant procurement directors.

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.

How does a continuous Tension Leveller prevent edge waves and center buckles?

Edge waves occur when strip edges are longer than the center, while center buckles occur when the core is longer. Traditional levelling simply flexes the strip back and forth over rolls, which may not stretch the shortest fibers past their elastic limit. A continuous Tension Leveller combines precise mechanical elongation (controlled by entry/exit bridle speed ratios) with high-density roll bending cassettes. This forces all longitudinal fibers across the entire cross-section past their yield point simultaneously, eliminating length discrepancies and leaving the strip flat and stress-free.

What roll diameters and cassette configurations are available for surface-critical materials?

For critical surfaces such as automotive outer panels, mirror stainless steel, and electronic copper foils, Jianfa supplies 6-high cassette configurations with work roll diameters from 18 mm to 40 mm. Work rolls are backed by intermediate rolls to prevent roll deflection stripes, and backed again by independently adjustable backup roll groups. Rolls can be finished with hard chromium plating (70+ HRC) or tungsten carbide coatings polished to Ra ≤ 0.1 μm to prevent surface markings.

Factory-Built Machinery Portfolio

Explore Additional Coil Processing & Slitting Configurations

Engineered, assembled, and test-run under one roof at our 40,000 m² factory in Wuxi, Jiangsu.

High strength leveling machine for steel plate

High Strength Leveling Machine (Steel Plate)

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Professional straightening machine for metal sheet

Professional Straightening Machine (Metal Sheet)

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Hot Rolled Plate Moving Flying Shear Line

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Stainless Steel Uncoiling-Leveling-Shearing Line

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Hot-Rolled Coil Slitting & Cut-To-Length Line

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Hot Rolled Sheet Slitting & Recoiling Line

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HR Uncoiling Slitting Recoiling Line

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HR Sheet Leveling Shearing Stacking Line

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Specialized Production Capabilities

Explore Additional Core Product Lines

Slitting Line Manufacturing

High-speed precision rotary slitting lines designed for heavy and thin gauge coil strip division.

China Manufacturer Of Slitting Line Manufacturers, Supplier

CE Certification Manufacturer Of Cut to Length Line

Cut to Length Production

Certified high-flatness cut-to-length systems delivering stack-ready plates with zero edge burr.

CE Certification Manufacturer Of Cut to Length Line Manufacturer, Suppliers

Flying Shear Systems

Continuous motion flying shears engineered for ultra-high productivity sheet manufacturing.

High-Quality Professional Flying Shear Production Line Manufacturer, Supplier

Start Technical Review

Connect Directly with Jianfa Senior Machine Engineers

Send us your coil material grade, thickness range, yield strength, coil weight, and target line velocity. A Jianfa factory mechanical engineer—not a broker—will analyze your processing requirements and return a complete proposal within 24 hours.

Submit Coil Specs for Engineering Review Download 2026 Technical Catalog

Direct Factory Contact

Address: No. 58 Qunxing Road, Meicun, Xinwu District, Wuxi, Jiangsu, China

Engineering Desk: +86-510-88151451

Direct Sales / WhatsApp: +86-139-2116-6015

Technical Email: [email protected] / [email protected]