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.

Slitting Line Supplier & Factories

Primary Machinery Lineup

High-Precision Coil Processing & Slitting Systems

Engineered for continuous heavy duty operations across carbon steel, stainless steel, silicon steel, and non-ferrous alloys. Explore our 8 frontline machinery configurations.

Heavy Leveling High Strength Leveling Machine

High Strength Leveling Machine

Engineered with multi-roll support cassette technology to effectively eliminate internal residual stress, coil curvature, and cross-bow in high-tensile hot-rolled steel.

Detailed Specification

Straightening Professional Straightening Machine

Professional Straightening Machine

Delivers micro-tolerance strip planarity through variable roller pitch design, preparing raw strips for high-speed laser cutting, forming, and automated stamping.

Detailed Specification

Continuous Shearing Hot Rolled Plate Moving Shear Line

Hot Rolled Plate Moving Shear Line

Synchronous dynamic shearing system that cuts thick gauge plates at full operational speed without stopping strip feed, maximizing plant tons-per-hour output.

Detailed Specification

Stainless Steel CTL Stainless Steel Coil Processing Line

Stainless Steel Uncoiling-Leveling-Shearing Line

Equipped with non-marking polyurethane-coated pinch rolls, paper interleaving/re-coiling modules, and automatic pneumatic drop stacking for 2B/BA mirror surfaces.

Detailed Specification

Integrated Modular Hot-Rolled Coil Slitting & CTL Combined Line

HR Uncoiling-Slitting-Leveling-CTL Stacking Line

A hybrid dual-function processing line that combines rotary edge trimming/slitting with precision flying cut-to-length and automated magnetic pallet stacking.

Detailed Specification

Slitter & Recoiler Hot Rolled Sheet Uncoiling Slitting and Recoiling Line

Hot Rolled Uncoiling, Slitting & Recoiling Line

Built for high-volume steel distribution hubs. Features dual eccentric slitting heads, quick knife exchange turnstiles, and differential tension bridle recoiling.

Detailed Specification

Tube Mill Supply HR Uncoiling-Slitting-Recoiling Line

Heavy HR Uncoiling-Slitting-Recoiling Line

Designed specifically to supply narrow mother coils to ERW tube mills and cold roll forming plants with zero camber deflection and minimal knife edge burr.

Detailed Specification

Heavy CTL

HR Coil Uncoiling Leveling Shearing Stacking Line

HR Sheet Uncoiling-Leveling-Shearing-Stacking Line

Heavy gauge continuous line handling master coils up to 35 tons. Features hydraulic pre-leveling, precision 4-Hi finish leveling, and high-speed mechanical shearing.

Detailed Specification

Global Landscape

Macro Industrial Solutions & Worldwide Steel Processing Realities

In modern metallurgical manufacturing, coil processing lines are no longer standalone mechanical shearing rigs. They are high-speed analytical cyber-physical processing nodes integrated into automated digital supply chains.

High-Yield Strength (AHSS) Shift

The global transition toward Advanced High-Strength Steels (AHSS) and Ultra-High-Strength Steels (UHSS) up to 1200 MPa requires slitting line arbors and knife clearance tooling with extreme rigidity to prevent edge fracture and excessive camber.

Deflection-free hardened alloy arbors (42CrMo/ forged tool steel)
Hydraulic shimless tool clamping systems

Smart Automation & OEE Optimization

Rising labor costs and scrap generation pressures demand turnkey automation. Robotic knife placement, auto-threading, dynamic tension regulation, and automated scrap ballers ensure consistent overall equipment effectiveness (OEE > 85%).

Rapid tooling turnover via twin-turret slitter heads (< 5 mins)
Real-time edge burr visual detection cameras

Zero Surface Degradation

Processing delicate automotive exposed body panels, architectural 316L mirror finishes, and high-purity electrical battery aluminum requires zero contact friction slip and micro-clean oil mist elimination during recoil tensioning.

Belt-bridle non-marking continuous tensioners
Paper interleaving and protective film laminating heads

40+

Years Engineering Excellence (Since 1980s)

40,000

m² Proprietary Factory & Assembly Facility

30+

Export Nations Across 6 Continents

45M

RMB Registered Capital Backing Projects

Technical Architecture

Comprehensive Technical Parameter Comparison

Compare the operational capacities across Jianfa's primary slitting lines, continuous cut-to-length systems, and ultra-high-speed moving flying shears.

Processing Metric	High-Precision Slitting Line	Heavy Cut to Length (CTL) Line	High-Speed Flying Shear Line
Primary Finished Deliverable	Multiple precision-slit recoiled narrow strips	Flat, stress-relieved sheets in strapped stacks	Continuous sheared square plates (high volume)
Strip Feed Motion at Shear	Continuous loop rotary slitting	Intermittent start-stop servo feeding	Continuous non-stop feed, synchronized motion
Processed Material Thickness	0.2 mm to 16.0 mm	0.5 mm to 25.0 mm	0.3 mm to 12.0 mm
Max Operational Line Speed	Up to 250 m/min	Up to 60 m/min	Up to 120 m/min (150 cuts/min)
Tolerance & Dimensional Precision	Width: ±0.05 mm \| Burr: < 5% thickness	Length: ±0.3 mm/m \| Flatness: ≤ 1.5 mm/m²	Length: ±0.5 mm/m (high dynamic repeatability)
Target Downstream Applications	ERW tube mills, cold roll profiling, stamping	Laser sheet centers, automotive panels, enclosures	Steel mills, white goods skin blanks, containers

Application Matrix

Localized Industry Scenarios & Downstream Implementation

Discover how Wuxi Jianfa slitting lines and processing machinery provide dedicated technical solutions for specialized regional and global metal fabrication sectors.

Automotive Body & Structural Blanking

Processing DP600/DP980 dual-phase steel and high-finish aluminum alloys for vehicle chassis, door beams, and outer exposed body panels with zero edge fracturing.

Dual looping pits for differential gauge tension buffering
Optical encoder length calibration down to fractions of a millimeter

Electrical Power & Silicon Steel Slitting

Ultra-thin oriented (GO) and non-oriented (CRGO) silicon electrical steel processing for high-efficiency power distribution transformer cores and EV motor laminations.

Sub-micron rotary arbor runout accuracy (< 0.003 mm)
Tungsten carbide rotary knives eliminating iron loss and edge burrs

Civil Infrastructure, ERW Pipes & Solar Racks

Heavy duty slitting of up to 16 mm hot-rolled black and pickled strip coils destined for high-frequency induction ERW tube mills and C/Z solar mounting channel roll formers.

Automated turnstile coil cars handling 35-ton coils
Integrated edge trim scrap winders & hydraulic chopper systems

Stainless Steel & Architectural Service Hubs

Processing cold-rolled grade 201, 304, and 316 stainless coils for appliance casings, medical enclosures, and architectural cladding without hairline scratching.

Multi-station automated paper recoiler & PVC film applicator
Non-metallic support rollers preserving premium surface textures

Certifications & E-E-A-T

Verified Manufacturing Authority & International Compliance

Jianfa operates under strict ISO 9001 and CE conformity frameworks. All equipment undergoes full mechanical shop trial assembly and electrical dry runs prior to sea container loading.

European CE Certification

Full adherence to Machinery Directive 2006/42/EC and Low Voltage Directive 2014/35/EU, including physical safety perimeter fences, interlocked light curtains, and category-4 E-stop emergency architectures.

National Key Enterprise Honor

Recognized as an official national key developing enterprise within China's metallurgical machinery sector, with direct proximity to Shanghai ports ensuring streamlined container logistics.

Global Field Engineering Support

Turnkey international commissioning, site foundation design coordination, PLC remote diagnostics via Siemens/Mitsubishi industrial VPNs, and comprehensive operator hands-on training.

Future Horizons

Technology Roadmap: Next-Gen Autonomous Coil Slitting

Jianfa's R&D engineering division continuously advances Industry 4.0 paradigms. Here is how our upcoming line revisions transform coil processing efficiency.

AI Computer Vision Strip Defect Scanning

Integration of multi-spectral continuous line-scan sensors along the strip run, utilizing deep learning algorithms to detect surface pinholes, laminations, scratches, and edge burrs at speeds over 200 m/min.

Fully Robotic Shimless Slitter Tooling

Automated 6-axis robotic gantries that configure rotary slitting knives and polyurethane stripper rings directly from production order software recipes, shrinking tooling setup from 45 minutes down to 3 minutes.

IoT Predictive Cloud Maintenance

Vibration analysis, thermal imaging sensors, and hydraulic torque monitors installed on primary gearboxes and arbor bearings, feeding telemetry into cloud neural networks to predict component wear before failure.

In-Depth Q&A

Frequently Asked Questions on Coil Slitting Lines

Expert answers directly addressing engineering feasibility, blade clearances, material behaviors, commissioning, and procurement requirements.

What is the proper blade horizontal and vertical overlap clearance for AHSS?

Horizontal clearance for Advanced High Strength Steel generally ranges between 8% and 14% of sheet thickness, while vertical penetration (overlap) is set neutral or slightly positive to promote clean crack propagation without excessive tool friction or knife chipping.

How does an uncoiler back-tension bridle prevent strip slippage?

Bridle roll assemblies apply regulated regenerative electric or pneumatic friction drag, generating balanced back-tension entering the slitting arbors. This stabilizes the pass-line height, preventing camber defects and edge pinching.

Can one slitting line handle both 0.5mm stainless and 6.0mm carbon steel?

Yes, via dual interchangeable slitting heads (turret-head design). Head A uses smaller arbors for delicate thin gauges with micro-adjustments, while Head B utilizes reinforced heavy-diameter arbors designed for high separating shear forces.

What commissioning steps are mandatory before serial steel production starts?

Commissioning encompasses precision laser centerline alignment across all modules, hydraulic line pressure and leak tests, PLC emergency stop loop confirmation, dynamic uncoiler-recoiler synchronization, and stepped trial slitting with ultrasonic arbor monitoring.

How are differential strip recoiling tensions compensated across wide coils?

Master coils inherently display crown (center thickness variation). When slit, outer strands build coil diameter slower than center strands. Jianfa incorporates looping pits and tension bridles with friction drag pads or eddy-current belts to ensure uniform wrap tightness.

What technical data must buyers supply to receive a tailored engineering proposal?

Key engineering parameters required include: material steel grades and yield strength range (MPa), coil thickness (min-max), coil width, max weight, coil ID/OD, target slit strips count, minimum slit width, burr tolerance threshold, and factory power supply specs.

Complete System Catalog