Leveling Systems
High Strength Leveling Machine
Multi-roll hydraulic cassette leveling engineered to neutralize residual inner stress, cross bow, and edge waves in ultra-high yield strength steel plates.
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Primary Machinery Portfolio
Engineered Heavy-Duty Coil Processing & Slitting Systems
Factory-direct configurations engineered for extreme duty cycles, continuous tension stability, and tight slit tolerance across steel, aluminum, and specialty alloy coils.
Straightening
Professional Straightening Machine
High-precision mechanical straightening units delivering dead-flat strip alignment directly ahead of high-speed stamping and dynamic profiling lines.
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Moving Shear
Hot Rolled Plate Moving Shear Line
Servo-synchronized flying cut kinematics designed for continuous non-stop shearing, maximizing plate throughput with zero surface scuffing.
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Cut To Length
Stainless Steel Coil Uncoiling-Shearing Line
Non-marking protective roll geometry, paper interleaving, and vacuum stacking mechanisms optimized for mirror and hairline stainless coil processing.
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Multi-Function Line
Integrated Slitting & Cut-To-Length Line
Hybrid architecture integrating continuous longitudinal slitting and cross-cutting within a consolidated footprint for maximum floor-space optimization.
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Slitter Rewinder
Heavy-Gauge Sheet Slitting & Recoiling Line
Ultra-rigid slitter arbor housing configured with dynamic hydraulic friction recoiling shafts for high-tonnage multi-slit production.
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Slitter Rewinder
HR Uncoiling-Slitting-Recoiling Line
Heavy-duty dual loop line engineered specifically for pipe manufacturing, roll forming feeds, and automotive frame raw material conversion.
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Cut To Length
Continuous Sheet Shearing & Stacking Line
Fully automated production system integrating precision leveling, digital optical encoder metering, pneumatic cut shearing, and automatic drop stackers.
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Industrial Whitepaper
The Engineering Fundamentals of Duplex Slitter Rewinder Machines
Understanding how dynamic differential winding shafts, CNC knife setups, and dual recoil loops solve strip thickness deviation across wide-web industrial coils.
Dual Differential Friction Rewinding
Coil profile variations—such as crown or edge thickness variations—create uneven strip linear velocities during rewinding. A duplex slitter rewinder divides alternate slit strips between two independent rewind shafts. Differential friction balls dynamically slip under micro-pressure, assuring identical tension profiles across every individual bobbin without strand sagging or edge stretching.
Precision Slitter Head Kinematics
Rotary shear tooling tolerances dictate slitting burr and strip edge quality. High-precision duplex slitters utilize 4-column eccentric housing with dynamic arbor deflection ratings under 0.005 mm/m. Tooling changes are accelerated via dual swivel-arm slitter turrets, allowing knife arbor retooling during live operation to achieve sub-15 minute job turnarounds.
Closed-Loop Vector Tension Control
Modern high-speed lines feature digital load cell feedback synchronized with multi-axis AC vector servo drives. The PLC continuously recalculates coil inertia, radius decay, and instantaneous running speeds, commanding micro-torque compensations to ensure web tension remains within ±0.5% during acceleration, high-speed slitting up to 300 m/min, and deceleration.
Industrial Ecosystem
China Factory Supply Chain Advantages: Engineered in Wuxi
Operating in the Yangtze River Delta machinery belt, Wuxi Jianfa combines deep mechanical fabrication heritage with vertical integration and premier seaport logistics.
40+
Years of Direct Manufacturing
40,000
m² Production Facilities
200+
Machinists & Engineers
30+
Export Countries Worldwide
100% In-House Heavy Machining
Unlike trading intermediaries, Wuxi Jianfa operates complete large-scale floor-type CNC boring machines, multi-axis gantry milling, induction hardening furnaces, and dynamic roller balancing benches within our 40,000 m² factory. Full mechanical and electrical traceability guarantees structural stiffness and operational longevity.
Unmatched Component Sourcing Agility
Situated in Meicun, Xinwu District, our facility is directly interfaced with the world's most concentrated tier-1 metallurgy supply network. High-alloy forged steel blanks, hydraulic manifold blocks, and precision bearings are procured and heat-treated with zero logistical drag, compressing line build schedules by 30-40% compared to Western counterparts.
Cost-Efficiency Without Compromise
Tier-one international electrical and hydraulic controls (Siemens, Schneider, Rexroth, Yaskawa) are integrated with precision-machined heavy welded frames at direct factory economics. Capital investment costs are substantially lowered, enabling global processors to achieve rapid return on investment (ROI) within 12 to 18 months.
Procurement Engineering
Global Procurement Criteria: Evaluating Line Suitability
Engineers and plant procurement managers must benchmark line mechanics against coil metallurgical parameters. Below is our engineering specification matrix.
| Performance Dimension | Light-Gauge Duplex Slitters | Medium/Heavy Duplex Slitting Lines | Combined Slit & CTL Lines |
|---|---|---|---|
| Target Material Compatibility | Cold-rolled, tinplate, copper, aluminum, thin CRNGO | Hot-rolled coils, pickled & oiled, HSLA structural steels | Mixed coil processing: hot-rolled, cold-rolled, stainless |
| Strip Thickness Range | 0.15 mm – 2.0 mm | 1.5 mm – 16.0 mm (Ultra-Heavy: up to 25 mm) | 0.5 mm – 8.0 mm |
| Line Speed Capabilities | Up to 250 – 350 m/min | Up to 80 – 160 m/min | Up to 60 – 100 m/min |
| Tension Management Type | Friction differential rings, closed-loop dancer rolls | Belt bridles, hydraulic press plates, dual looping pits | Combined looping pit with mechanical drag pad station |
| Typical End Applications | Electronic connectors, can lids, automotive wiring | ERW tube mills, roll formed purlins, truck chassis | Commercial steel service centers, appliance enclosures |
Future Innovations
Emerging Technological Trends in Slitting & Rewinding
How digital automation, AI blade positioning, and regenerative braking are reshaping the metallurgical machinery landscape.
Robotic Automated Blade Tooling
Manual tooling assembly is the single greatest cause of line downtime. Contemporary lines integrate robotic pick-and-place knife loading and automatic optical clearance checking, reducing setup times from 45 minutes down to 3 minutes while eliminating human calculation mistakes.
Regenerative Common-Bus Drives
Heavy pay-off unwinding brakes generate substantial continuous heat. Modern green manufacturing architectures employ common DC-bus drive topologies that capture uncoiler braking energy and direct it to drive the slitter head and recoiler motors, lowering total plant power consumption by up to 28%.
IoT Telemetry & Predictive Maintenance
Integrated edge industrial gateways stream vibration spectra, bearing temperature telemetry, and hydraulic valve cycle counts in real time. Remote cloud diagnostics allow Wuxi Jianfa engineers to assist global factory operators with predictive maintenance alerts before catastrophic mechanical failures occur.
Regulatory & Service Framework
Localized Support, CE Compliance & Operational Guarantee
Seamlessly bridging Chinese manufacturing speed with strict international health, safety, electrical, and on-site engineering requirements.
CE & OSHA Safety Standards
Every production line complies with European Machinery Directive 2006/42/EC and EN 60204-1 electrical safety protocols. Standard packages feature dual safety circuits, perimeter optical light curtains, interlocked fencing, and emergency hydraulic braking.
Localized Regional Engineering
Our lines are installed across North America, Europe, South America, the Middle East, and Southeast Asia. We supply localized electrical configurations (480V/380V/220V 50/60Hz) and multi-language HMI interfaces (English, Spanish, Russian, Arabic).
Turnkey Field Commissioning
Experienced field dispatch engineers arrive on-site for civil foundation verification, mechanical alignment, electrical integration, and dynamic trial slitting with actual customer master coils, accompanied by comprehensive hands-on staff training.
Guaranteed Spare Parts Logistics
High-wear consumables—including tungsten carbide shims, slitter knives, rubber stripper rings, hydraulic filters, and brake pads—are kept in continuous stock with expedited air dispatch within 48 to 72 hours worldwide.
Industrial Q&A
Frequently Asked Technical Questions
Direct technical clarifications from Wuxi Jianfa's metallurgical machinery design team for plant managers and system engineers.
What coil processing equipment does Wuxi Jianfa manufacture?
We engineer and manufacture complete industrial coil processing lines: high-precision slitting lines (rotary shear lines), cut to length lines, servo flying shear production lines, hydraulic leveling machines, sheet straightening machines, and continuous galvanizing lines. Machinery can be configured as a comprehensive turn-key plant or retrofitted into existing operations to boost processing speeds and slit accuracy.
Which materials can your slitting and cut to length lines process?
Our lines are customized to process hot-rolled structural steel, cold-rolled carbon steel, pickled and oiled steel, galvanized sheet, silicon electrical steel (CRNGO/CRGO), stainless steel (grades 200, 300, 400 series), and precision aluminum alloys. Equipment is dimensioned around specific client coil weight, strip thickness ranges, width envelopes, and ultimate yield strengths.
How do I choose between a slitting line, a cut to length line and a flying shear line?
Select a slitting line (slitter rewinder) when the downstream requirement involves narrow master strips recoiled for pipe mills, stamping dies, or roll-forming feedstocks. Select a cut to length line when flat, dimensioned rectangular sheets or plates are required for laser cutting, welding, or cabinet stamping. Choose a flying shear line when exceptional output volume is paramount, as the dynamic shear travels in sync with strip movement, eliminating stop-and-go friction marks.
What technical data is required to receive an accurate line proposal?
To provide an engineered proposal, our engineering team requires: (1) Material grade and maximum yield strength (MPa), (2) Strip thickness range (minimum to maximum), (3) Master coil width range and maximum coil weight, (4) Coil inner diameter (ID) and outer diameter (OD), (5) Finished slit width requirements or sheet length dimensions, (6) Surface quality standards (dry, oiled, mirror-finish), and (7) Plant power feed specs.
Do you support on-site installation, commissioning, and operator training overseas?
Yes. We provide complete turnkey overseas support. Our after-sales department dispatches senior mechanical and electrical engineers directly to your facility to oversee line leveling, anchoring, electrical integration, and cold/hot commissioning. Furthermore, we conduct structured operator training covering software parameterization, tool setup calculations, and preventive maintenance protocols.
Can international clients inspect equipment in China prior to shipment?
Absolutely. Overseas buyers and third-party inspection agencies (such as SGS, BV, TÜV) are welcomed and encouraged to inspect lines under full operational dry-cycling and trial runs at our 40,000 m² factory in Wuxi, Jiangsu—conveniently located within a 45-minute high-speed train ride from Shanghai.
Turnkey Solutions
Verified Heavy Machinery Catalog & Technical Inquiries
Direct factory solutions built to order. Explore our complete range of certified coil processing, shearing, and slitting equipment.
Slitter Rewinder
Heavy HR Slitting & Recoiling Line
Heavy hot-rolled coil slitter configured with interchangeable cutter heads, motorized scrap ball winders, and automatic recoiler push-off carts.
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Slitter Rewinder
High-Output Coil Slitting Line
Dual-loop tension station with interchangeable drag pads and roll tensioners designed for burr-free slitting of commercial steel coils.
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Flying Shear
Continuous Moving Plate Shear Line
Cuts thick plate on the fly with dynamic length tracking, eliminating strip stopping and preventing plate surface scratching.
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Cut To Length
Precision Stainless Steel Cut-To-Length
Precision 6-high leveler design paired with dynamic stacking beds engineered specifically to protect high-finish stainless steel sheets.
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Cut To Length
Heavy-Duty Sheet Shearing Line
Integrated production system with high-precision digital measuring rolls, mechanical guillotine shear, and magnetic stacker.
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Multi-Function Line
Heavy Coil Slit & Cut-To-Length Unit
Dual-capability plant line configured to either slit coils into narrower bobbins or chop strip into specified sheet lengths on demand.
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Leveling Systems
Ultra-High Strength Plate Leveler
Engineered with forged alloy steel leveling rolls backed by heavy-duty needle bearings to level steel up to 960 MPa yield strength.
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Straightening
Multi-Roll Precision Straightener
Compact straightening configuration featuring motor-driven gap adjustment and digital position readouts for rapid, precise calibration.
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