Precision Metal Slitting Line
Engineered for high-speed continuous strip reduction with micron-level rotary shear accuracy and integrated edge trimming rewinders.
China Manufacturer Of Slitting Line Manufacturers, Supplier
Primary Machinery Portfolio
Industrial Slitting Lines & Metal Coil Processing Systems
Explore our field-proven slitting lines, leveling systems, and automated coil shearing architectures optimized for high yield, minimum burr, and zero slip surface processing.
Dynamic Flying Shear Production Line
Zero-stop continuous shearing technology synchronized with master strip speed for non-stop length cutting and automatic stacking.
High-Quality Professional Flying Shear Production Line Manufacturer, Supplier
CE Cut to Length Line (CTL)
Certified high-precision uncoiling, multi-roller leveling, precise length measuring, and hydraulic shear stacking station.
CE Certification Manufacturer Of Cut to Length Line Manufacturer, Suppliers
High Strength Leveling Machine
Eliminates internal stress, coil set, and crossbow in extreme-yield automotive and heavy structural steel alloys.
High Strength Leveling Machine
Professional Straightening Machine
Rigid multi-roll precision straightening machine calibrated for surface protection and tight thickness tolerances.
Professional Straightening Machine
Hot Rolled Moving Shear Line
Heavy-duty moving shear system designed for continuous high-gauge hot-rolled strip separation without deceleration.
Hot Rolled Plate Moving Shear Line
Stainless Uncoiling & Shearing Line
Non-marking polyurethane rollers and air-cushioned drop stackers engineered for 2B, BA, and hairline stainless coil integrity.
Stainless Steel Shearing Line
Combined Slitting & CTL Plant
All-in-one footprint incorporating dual slitter shafts, inline leveling, and cut-to-length stacking for versatile production.
Combined Slitting + CTL Line
Technical Deep-Dive
Engineering Principles of High-Performance Duplex Slitter Rewinders
Overcoming caliper variation, tension slip, and burr deformation through advanced dual-shaft center-surface winding and multi-axis closed-loop servo control.
Differential Friction Air Shafts
When running multiple narrow slit coils from a single master roll, inherent web thickness variations (gauge band deviation) cause unequal roll build-up. Our duplex rewinders incorporate ball-type or multi-segment pneumatic differential shafts.
Each friction ring slips independently under regulated air pressure, delivering constant individual web tension across every strip and eliminating loose rewinds.
Dynamic Closed-Loop Tensioning
Operating speeds exceeding 300 to 500 m/min demand real-time web control. Wuxi Jianfa equips each slitting and duplex rewinding module with ultra-low friction pneumatic dancer rolls and load-cell sensor arrays.
Integrated with high-speed Siemens or Mitsubishi PLC systems, the line continuously calculates diminishing parent reel diameters and dynamically tapers rewinding torque.
Rotary Shear & Razor Tooling
Edge geometry is critical. Our slitter assemblies feature dual arbor housings CNC-machined from stress-relieved casting blocks with runouts strictly controlled within ±0.003 mm.
Accommodating tungsten carbide male/female rotary knives, shear knives, and burst slitting, our lines handle aluminum foil, ultra-thin copper, galvanized strip, and high-tensile steel.
Competitive Differentiation
Why Global Tier-1 Converters Choose Chinese Engineering
Combining four decades of heavy metallurgical machinery heritage in Wuxi with complete Yangtze River Delta supply chain vertical integration.
100% In-House Machining
From annealing large weldments to horizontal boring, shaft cylindrical grinding, and dynamic balancing, our 40,000 m² Wuxi facility controls every manufacturing process under ISO quality management.
Exceptional Capex Efficiency
Gain access to European-grade componentry—such as Rexroth hydraulics, NSK/SKF bearings, and Schneider/Siemens automation—at an investment baseline 40% to 60% lower than legacy Western builders.
Compressed Build Cycles
Leveraging direct access to regional steel centers and localized precision machining corridors, custom duplex slitter rewinder lines and CTL lines are delivered within 90 to 120 days from drawing approval.
Deep Customization Agility
No forced standard footprints. Each uncoiler mandrel diameter, hydraulic coil car loading stroke, pit slitter accumulator, and dual-turret recoiler is custom-built around your plant layout and material specs.
Future-Proof Manufacturing
Market Dynamics & Next-Generation Coil Slitting Trends
The conversion and coil processing sector is undergoing a rapid transition toward digital integration, higher strength alloys, and ultra-thin substrates.
Robotic Knife Positioning
Manual blade setup on arbor shafts is one of the highest contributors to conversion downtime. Emerging trends center on motorized, robotic slitter knife positioning rigs.
Our intelligent positioning systems read recipe coordinates from the MES, relocating male and female slitter assemblies via linear encoders in under 90 seconds within ±0.01 mm tolerances.
IoT Predictive Maintenance
By outfitting main arbor bearings, hydraulic tension units, and uncoiler drivetrains with triaxial vibration and thermal sensors, Wuxi Jianfa lines continuously stream diagnostic telemetry.
Operators detect knife edge blunting, lubrication dry-out, and shaft imbalance long before strip quality deteriorates or costly unplanned shutdowns occur.
EV Battery & Clean Energy Foils
The explosive demand for lithium-ion battery anode and cathode foils (copper and aluminum substrates down to 4.5 μm) has redefined precision slitting requirements.
Our duplex slitter rewinders feature cleanroom-grade containment, non-contact edge guide cameras, and specialized anti-static bar ionization to prevent pinholes and edge serration.
Application Horizons
Comprehensive Macro-Industry Solutions & Workflows
Tailored engineering packages configured to meet the rigorous standards of global downstream sectors—from automotive press shops to high-volume packaging.
Automotive & Aerospace Tier-1
Processing advanced high-strength steels (AHSS), DP980, and aerospace aluminum coils (5000/6000 series). Integrated 6-high precision levelers remove internal residual stress to ensure dead-flat laser blanks without edge curl or warping during subsequent stamping operations.
Tube, Pipe & Roll Forming
Delivering high-tonnage slit coil strips for HF welded pipe, ERW casing, and cold-formed structural sections. Heavy-gauge rotary slitter arbors guarantee minimal edge camber and burr heights below 3% of sheet thickness, safeguarding welding integrity downstream.
Flexible Packaging & Converting
High-speed center-surface duplex rewinding for BOPP, PET, paperboard, and laminated barrier films. Features automated differential shaft core-locking, rotary shear edge trimming, and automated web splicing systems to maintain high-throughput 24/7 output.
Electrical Steel & Transformers
Specialized narrow-width slitting lines engineered for grain-oriented (CRGO) and non-oriented (CRNGO) silicon steel coils. Carbide blades engineered to operate with zero burr formation, preventing magnetic flux degradation and core loss in high-efficiency transformers.
Stainless Architectural & Appliance
Processing grade 304, 316, and 430 stainless steel sheets with delicate surface coatings. Features synchronized PVC/PE protective film applicators, non-marking urethane bridle rolls, and soft-drop drop stackers that completely eliminate scratching.
Global Steel Service Centers
Maximum flexibility for processors managing high-mix, low-volume coil contracts. Modular changeover tool carts, semi-automatic shimless arbor tool set tables, and combined slitting-cut-to-length hybrid layouts optimize plant footprint and line efficiency.
Technical Comparison
Engineering Architecture Comparison Matrix
Match line kinematics and machine mechanics directly to your downstream yield goals.
| Evaluation Parameter | Duplex Slitter Rewinder | Rotary Coil Slitting Line | Dynamic Flying Shear Line |
|---|---|---|---|
| Primary Finished Output | Multiple uniform reels on dual differential shafts | Multiple narrow slit coils on single mandrel recoiler | Square, flat stacked sheets & plates |
| Target Material Gauge | 0.015 mm – 3.0 mm (Foils, films & thin metals) | 0.2 mm – 16.0 mm (Cold/Hot rolled steel & alloys) | 0.5 mm – 12.0 mm (Sheet metal & structural plate) |
| Line Speed Capability | Up to 400 – 600 m/min | Up to 120 – 220 m/min | Up to 80 – 120 m/min (Continuous strip speed) |
| Tension Control Mode | Independent differential air slip on dual shafts | Tension stand (roll, pad, belt) + recoiler torque | Closed-loop AC servo master roll synchronization |
| Strip Motion During Cut | Continuous rotary shear / razor split | Continuous high-rigidity rotary arbor knives | Synchronized continuous moving shear carriage |
| Key Downstream Applications | Battery foils, flexible packaging, laminates | Tube mills, roll forming lines, automotive stamping | Laser cutting centers, enclosures, steel service centers |
Procurement Roadmap
Tender Specification Guide for International Buyers
Ensure complete engineering transparency and accurate quotations by submitting verified operational parameters during your RFQ cycle.
1. Material Mechanicals
Detail exact alloy designation, yield strength range (MPa / PSI), ultimate tensile strength, minimum/maximum thickness, and coil width variance across incoming supply.
2. Coil Envelope Specs
Specify parent roll maximum outer diameter (OD), inner diameter (ID), maximum weight (metric tons), and target rewind finished roll cores (3", 6", or solid steel mandrels).
3. Cut Tolerances & Edge Quality
Outline required width tolerances (e.g. ±0.05 mm), maximum permissible edge burr percentage, camber limits per linear meter, and surface scratch inspection criteria.
4. Plant Infrastructure
State available shop-floor dimensions, crane lifting capacity, line feed orientation (left-to-right / right-to-left), electrical grid rating (V/Hz), and compressed air supply.
Engineering Knowledge Base
Frequently Asked Questions
In-depth technical answers addressing installation, metallurgy, tooling lifecycle, and global compliance.
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 turn-key production plant or as modular components (uncoilers, edge trimmers, recoilers) to retrofit and upgrade existing facilities.
Which materials can your slitting and cut to length lines process?
Our lines process hot-rolled, cold-rolled, galvanized, stainless steel, silicon electrical steel, and aluminum coils, including ultra-high-strength automotive alloys up to 1200 MPa yield. Each line is designed around your specific thickness span, master coil width, yield parameters, and critical surface-quality criteria.
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 master coils cut lengthwise into multiple narrow strips recoiled for tube mills, roll forming, or progressive die stamping. Choose a cut to length line (CTL) when your end product requires flat, neatly stacked plates or sheets. Choose a flying shear line when high throughput is paramount, as the shear cuts synchronized with the running strip without stopping material feed. Hybrid combined lines are also available.
What makes a duplex slitter rewinder different from a conventional single-shaft rewinder?
A conventional slitter recoils all slit strands onto a single expanding arbor mandrel. If there are slight thickness variations across the strip width, tighter strips wind faster while looser strips sag or lose tension. A duplex slitter rewinder alternates adjacent slit strips onto two separate shafts (top and bottom) equipped with independent differential friction rings, providing uniform tension on every reel regardless of thickness variations.
What information should I send to receive an accurate technical proposal?
Please share material grade and yield strength (MPa), coil thickness and width span, maximum master coil weight, inner/outer diameter ranges, required output specifications (number of cuts, minimum slit width, or finished sheet lengths), edge burr/tolerance limits, target line speed, and factory electrical supply ratings (V/Hz).
Do you support installation, commissioning and operator training overseas?
Yes. Our veteran electrical and mechanical commissioning engineers deploy internationally to oversee foundation anchoring, wiring, cold dry-run calibration, hot commissioning with master coils, and structured hands-on operator training. Comprehensive remote diagnostics are enabled via integrated Ethernet/VPN modules.
Can I visit the factory and inspect my equipment before delivery?
Yes. We welcome clients and third-party inspection agencies (SGS, TÜV, Bureau Veritas) to inspect production at our 40,000 m² facility in Wuxi, Jiangsu—conveniently located near Shanghai via high-speed rail. Factory Acceptance Tests (FAT) with actual test coils are standard procedure before international shipment.
Complete Equipment Range
Featured Coil Processing & Slitting Installations
Explore our heavy-gauge uncoiling, leveling, and high-speed precision slitting machinery deployed globally.
Industrial Coil Slitting Plant
High-capacity line configured with dual rotary shear arbors, looping pit tensioners, and automatic hydraulic recoiler push-offs.
China Manufacturer Of Slitting Line Manufacturers, Supplier
Servo Flying Shear Line
Dynamic flying shear carriage synchronized with master strip speed for non-stop length cutting and automatic stacking.
High-Quality Professional Flying Shear Production Line Manufacturer, Supplier
Heavy Plate CTL System
CE-certified heavy plate leveling and length-measuring shear system with fully automated sheet pallet drop stackers.
CE Certification Manufacturer Of Cut to Length Line Manufacturer, Suppliers
Hot Rolled Slitting & Recoiling
Rotary shear slitting of heavy hot-rolled steel coils with tight recoiling and hydraulic strip turnstile unloading arms.
Hot Rolled Sheet Slitting Line
HR Strip Slitting Unit
Robust slitting configuration engineered for tube mill, structural purlin, and roll-forming strip supply chains.
HR Uncoiling-Slitting-Recoiling Line
HR Uncoiling-Leveling-Shearing
Levels, measures, shears, and stacks hot-rolled sheet in one continuous, automated workflow for service centers.
HR Leveling & Shearing Line
Precision Multi-Roll Leveler
Multi-roll cassette design facilitating rapid roll cleans and changes for high-yield strength steel processing.
High Strength Leveling Machine
High-Throughput Moving Shear
Direct mechanical/hydraulic synchronized traveling shear head built for continuous production plate processing plants.
Moving Shear Production Line
Direct Engineering Inquiry
Partner with Wuxi Jianfa for Your Next Slitting Plant
Send us your coil specifications, target line speeds, and tolerance criteria. Our senior metallurgical machinery team reviews all requirements directly to deliver an optimized engineering proposal within one business day.
Mobile / WhatsApp
+86 139 2116 6015
Direct Office Line
+86 510 8815 1451
Sales Engineering Inquiries
[email protected] / [email protected]
Plant & Headquarters Location
No. 58 Qunxing Road, Meicun, Xinwu District, Wuxi, Jiangsu, China