Stress Relief Leveling
High Strength Leveling Machine
Multi-roll hydraulic leveling technology eliminating coil memory, edge wave, and cross-bow in high-tensile material.
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Precision Portfolio
Featured Cold Rolled Slitting Lines & Coil Systems
Factory-configured automated production lines engineered for cold-rolled steel, CRGO/CRNGO electrical sheets, stainless steels, and automotive-grade lightweight non-ferrous coils.
Flatness Correction
Professional Straightening Machine
High-precision roller configuration ensuring mirror-flat sheets ahead of automated punching and progressive stamping.
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Dynamic Flying Cut
Hot Rolled Plate Moving Shear Line
Continuous dynamic synchronized shear system delivering burr-free cuts without stopping strip progression.
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Surface Critical Cut
Stainless Steel Coil Uncoiling-Leveling-Shearing Line
Non-marking polyurethane rollers and air-cushioned stacking engineered for 2B, BA, and No.4 finish cold strip.
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Combined Integration
Hot-Rolled Coil Uncoiling-Slitting-Leveling-CTL Line
Dual-function slitter and cut-to-length workstation engineered for compact layouts and dynamic job changes.
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Rotary Slitting Line
Sheet Uncoiling, Slitting and Recoiling Line
Equipped with double eccentric arbor adjustments, dynamic scrap balling, and variable-backpressure tensioners.
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High-Speed Recoiling
HR / CR Uncoiling-Slitting-Recoiling Line
Speeds up to 220 m/min with quick-change tooling turnstiles for fast setup in high-throughput pipe and tube mills.
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Precision Stacking CTL
Sheet Uncoiling-Leveling-Shearing-Stacking Line
Continuous optical measuring paired with electromagnetic drop stacking, delivering +/-0.2mm length accuracy.
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Technical Whitepaper
State of Cold Rolled Slitting Technology & Industry Trends
Modern metallurgical processing requires higher precision than ever before. Driven by electromobility, lightweighting, and automated sheet metal processing, cold rolled coil slitters are transforming into highly instrumented CNC processing hubs.
Sub-Micron Width Tolerances
Contemporary stator core stampings and battery enclosure fabrications mandate edge tolerances within ±0.02 mm. Our high-rigidity 42CrMo forged arbor shafts, paired with high-precision anti-backlash bearings, virtually eliminate arbor deflection during heavy multi-strip cutting cycles.
Semi-Autonomous Setup & Robotics
Changeover time is a critical bottleneck in steel service centers. Robotic knife positioning combined with hydraulic quick-release turnstiles cuts knife and spacer replacement duration from 50 minutes down to less than 7 minutes, directly increasing line uptime.
Surface-Critical Handling Systems
Processing coated, cold-rolled, or stainless steel strips requires zero cosmetic marking. Advanced non-contact loop controls, optical edge centring, and multi-roller tension units protect surface finishes, meeting strict automotive exposed panel standards.
Procurement Engineering
Global Procurement Matrix: Cold Rolled Slitter Specifications
Engineering guidelines for procurement teams, technical directors, and plant managers defining production targets for precision steel slitting lines.
| Performance Parameter | Light Gauge High-Precision Line | Medium Gauge Standard Line | Heavy Gauge Processing Line |
|---|---|---|---|
| Strip Thickness Range | 0.15 mm – 1.5 mm | 0.5 mm – 4.0 mm | 3.0 mm – 16.0 mm |
| Coil Width Capacity | 600 mm – 1,300 mm | 800 mm – 1,800 mm | 1,000 mm – 2,200 mm |
| Maximum Coil Weight | Up to 15 Metric Tons | Up to 30 Metric Tons | Up to 40 Metric Tons |
| Max Slitting Velocity | Up to 220 m/min | Up to 160 m/min | Up to 90 m/min |
| Slitting Edge Burr | ≤ 0.015 mm or ≤ 3% thickness | ≤ 0.03 mm or ≤ 5% thickness | ≤ 0.08 mm or ≤ 7% thickness |
| Width Accuracy Limit | ± 0.02 mm | ± 0.05 mm | ± 0.10 mm |
| Compatible Alloys | Silicon Steel, Sus304/316, Cu, Al | CR Sheets, Galvanized, PPGI, HSLA | Hot Rolled, Q235, Q355, Pickled Steel |
40+
Years In-House Experience
40,000m²
Heavy Fabrication Facility
30+
Export Destination Countries
±0.02mm
Slitting Arbor Runout Precision
Industrial Applications
Macro-Industry Integrated Coil Solutions
Custom slitting lines engineered for specific downstream manufacturing sectors, matching coil handling, tensioning, and shearing configurations to your product demands.
Automotive Stamping
Capable of slitting dual-phase (DP) and trip steels up to 1200 MPa yield strengths without camber deflection or edge fracture, feeding progressive body-panel dies.
Transformers & E-Motors
Dedicated lines for grain-oriented (CRGO) and non-oriented (CRNGO) silicon steel coils. Carbide blades deliver ultra-low burrs (≤0.01 mm) to minimize magnetic flux loss.
Tube & Roll Forming
Heavy-duty recoiling systems deliver consistent strip tension and tight winding edges for ERW structural pipe, hollow section, and high-frequency welding mills.
Metal Service Centers
High-mix, low-volume setups with modular rapid-change knife systems and automatic packing turntables, maximizing daily throughput across varying gauges.
Compliance & Reliability
CE Certification Standards & Global Support Architecture
European safety directives demand rigorous machine guarding, fail-safe electrical interlocks, and structured hydraulic safety loops. Our machinery satisfies full CE compliance for seamless international commissioning.
CE Machinery Directive (2006/42/EC)
Fully interlocked perimeter enclosures, Category 4 optical light curtains at pinch zones, zero-energy state lockout-tagout (LOTO) ports, and emergency braking systems certified by notified bodies.
Electromagnetic Compatibility (EMC)
EN 60204-1 compliant power distribution cabinets. Premium Siemens or Schneider variable-frequency drives (VFD) housed in isolated enclosures to prevent electrical harmonics and protect plant networks.
Overseas On-Site Commissioning
Field service engineers provide on-site machine leveling, laser alignment calibration, electrical commissioning, and local operator training, backed by secure remote VPN diagnostics.
CE Mark (European Safety Compliance)
ISO 9001:2015 Quality Management
EN ISO 12100 Mechanical Risk Mitigation
National Key Metallurgy Developing Enterprise
Engineering Roadmap
Technology Roadmap & Metallurgy 4.0 Vision
Advancing metal coil processing through digital interconnectivity, adaptive closed-loop automation, and predictive maintenance technologies.
Phase 01 • Active Standard
Closed-Loop Tensioning
Load-cell feedback systems that continuously regulate strip tension across each strand, compensating for gauge variation across the coil width.
Phase 02 • 2025 Focus
Vision Burr Inspection
High-speed line cameras that check slitting edge quality in real time, automatically flagging knife wear or micro-chipping during high-speed runs.
Phase 03 • Deployment
Automated Knife Robotics
Fully automated robotic knife gantries that position slitter blades and spacers directly from shop-floor MES production schedules.
Phase 04 • Horizon
Predictive AI Maintenance
Edge-computing vibration analysis on slitter arbors and bearings, alerting operators to scheduled servicing before wear impacts cut tolerances.
Technical FAQ
Frequently Asked Technical & Commercial Questions
Engineering answers to key questions from overseas plant managers, maintenance leads, and procurement teams.
What coil processing equipment does Wuxi Jianfa manufacture?
We manufacture complete, custom coil processing lines: high-precision cold rolled slitting lines (rotary shear lines), cut to length lines, high-speed flying shear lines, multi-roller leveling machines, straightening machines, and continuous coil galvanizing production lines. Machinery can be purchased as complete turnkey lines or individual units to upgrade existing production workflows.
Which materials can your slitting and cut to length lines process?
Our equipment processes hot-rolled steel, cold-rolled sheets, galvanized coils, prepainted steel (PPGI), stainless steel (300 and 400 series), aluminum, copper, and electrical silicon steels (CRGO/CRNGO). Each line is custom-configured around your yield strengths, coil thickness and width range, and required surface-quality limits.
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, tightly rewound strips to supply downstream roll formers, tube mills, or progressive stamping presses. Select a standard cut to length line when you need flat, precision-squared sheets stacked neatly on pallets. Choose a flying shear line when sheet throughput volume is the priority, since the shear synchronizes with the moving strip to cut without stopping coil flow.
What parameters are required to receive an accurate technical proposal?
Please share your material grade and yield strength (MPa), coil thickness and width limits, maximum coil weight, inner and outer diameters, target line speed (m/min), minimum strip width, maximum number of cuts, target length tolerances, and your plant electrical supply specifications (voltage, Hz).
Do you support installation, commissioning and operator training overseas?
Yes. Our experienced engineering team oversees on-site positioning, leveling, alignment, wiring, and trial slitting runs worldwide. We also provide thorough operator training in safety practices, blade setting, and CNC maintenance, backed by remote diagnostic support.
Can buyers visit the manufacturing facility and inspect equipment before dispatch?
Yes, we welcome factory visits. Clients regularly tour our 40,000 m² facility in Wuxi, Jiangsu—conveniently located near Shanghai via high-speed train—to inspect their equipment during assembly, dry running, and coil test processing prior to shipping.
Direct Equipment Directory
Explore Complete Cold Rolled Coil Processing Solutions
Browse our precision-manufactured coil processing equipment. Request custom line drawings and engineering quotes directly from our technical team.
Certified Line
CE Certification Cut to Length Line
Fully CE-compliant uncoiling, multi-roll leveling, and shearing line with high-speed automated stacking tables.
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Heavy Slitter
Slitting Line Manufacturers & Suppliers
Heavy-duty rotary shear slitting line built for cold- and hot-rolled coils, featuring automated hydraulic recoiling drums.
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Continuous Cutting
Flying Shear Production Line
High-efficiency continuous servo flying shear system engineered to cut sheets on the fly without stopping coil feed.
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Precision Leveling
High Strength Plate Leveler
Engineered with high-torque gearboxes and multi-segment back-up rollers to correct complex shape defects in tough steel.
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Stress Reliever
Precision Straightening Machine
Fine-pitch leveling unit designed to eliminate internal residual stress before automated laser-cutting processes.
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High-Output Shear
Moving Shear Production Line
High-tonnage hydraulic shearing carriage that tracks strip velocity for accurate, clean cuts on medium and heavy plates.
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Non-Marking Line
Stainless Steel Cut to Length Line
Engineered with specialized surface-protection components to prevent scratching on automotive and architectural stainless coils.
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Automated Coil Line
Cold Rolled Slitting and Recoiling Line
Turnkey coil slitting machine equipped with twin recoiling drums, tension control stations, and hydraulic exit turnstiles.
Request PricingInitiate Your Slitter Line Project with Senior Engineers
Connect directly with our engineering department in Wuxi. We will review your coil width, gauge, speed, and yield strength requirements to provide a full equipment layout and formal proposal within 24 business hours.
+86 139 2116 6015 / +86 510 8815 1451
No. 58 Qunxing Road, Meicun, Xinwu District, Wuxi, Jiangsu, China