Leveling & Flattening
High Strength Leveling Machine
Multi-roll high-torque cassette leveler designed to eliminate edge waves and coil sets in high-yield alloy plates.
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Precision Engineered Solutions
High-Yield Strip Processing Portfolio
Engineered for high-tensile hot-rolled steel, cold-rolled sheets, silicon coils, and delicate stainless finishes with sub-millimeter burr control.
Stress Relief
Professional Straightening Machine
Ultra-precise straightening technology providing residual stress release ahead of deep drawing and tube forming.
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Flying Shearing
Hot Rolled Plate Moving Shear Line
Dynamic flying shear sync with continuous strip flow. Zero-dwell cutting optimized for massive steel service throughput.
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Surface Protection CTL
Stainless Steel Uncoiling & Stacking Line
Polyurethane pinch rollers, PVC protective film laminators, and automated magnetic stackers preventing surface marring.
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Hybrid Production
HR Uncoiling-Slitting-CTL Line
Dual-functional modular processing station combining slitting and length shearing into an integrated space-saving layout.
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Rotary Slitting
Hot Rolled Sheet Slitting & Recoiling Line
Heavy-duty rotary slitter line equipped with dual arbor heads for non-stop knife tooling changeover within 15 minutes.
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Tube Mill Supply
HR Uncoiling-Slitting-Recoiling Line
High-speed tensioning system, dynamic loop accumulators, and hydraulic uncoilers geared for precision pipe and tube mills.
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Automated CTL
HR Sheet Leveling-Shearing-Stacking Line
Fully automated CNC servo feeding, hydraulic high-speed guillotine shear, and non-stop pallet exchange stacking arm.
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Certified Original Reference Pipelines:
Macro-Industrial Overview
Global Procurement Architecture & Manufacturing Dynamics
How top-tier automotive stampers, structural pipe fabricators, and electric transformer manufacturers mitigate camber, slit burrs, and coil tension inconsistencies.
Burr-to-Thickness Ratio Thresholds
Modern high-speed forming presses demand a burr height under 5% of nominal sheet thickness. Jianfa lines leverage hydraulic knife clamp spindles and hardened alloy tooling (H13K/D2/Tungsten Carbide) with micron-level lateral clearance calibration, completely preventing secondary deburring downtime.
High-Strength AHSS/UHSS Challenges
Processing Dual-Phase and TRIP steels with yield strengths exceeding 980 MPa causes severe knife deflection and mechanical vibration. Our reinforced heavy-gauge structural housings utilize heavy-duty cast steel stands with hydraulic pre-loading, eliminating arbor shaft deflection during peak cutting forces.
Total Cost of Ownership (TCO)
Traditional slitting configurations suffer from long tooling changeover intervals averaging 45 to 60 minutes. Jianfa's twin-rotary turret slitter systems enable complete off-line arbor setup while running, cutting setup intervals down to under 8 minutes, boosting plant utilization by over 34%.
Technical Matrix
Process Selection Matrix: Slitting vs. CTL vs. Flying Shear
Evaluate your production volume, cross-sectional requirements, and downstream integration to select the correct mechanical footprint.
| Evaluation Parameter | High-Precision Slitting Line | Cut-to-Length (CTL) Line | Continuous Flying Shear Line |
|---|---|---|---|
| Primary Finished Form | Multi-strand narrow strips, recoiled tight | Precision dimension flat sheets, palletized | High-throughput flat plates, continuous stacked |
| Strip Motion During Shearing | Continuous high-speed rotation (up to 200m/min) | Start-stop intermittent cycle (servo indexed) | Synchronized continuous moving shear carriage |
| Typical Thickness Band | 0.2 mm – 16.0 mm (Carbon, SS, Silicon, Al) | 0.5 mm – 25.0 mm (Heavy plate capable) | 1.0 mm – 12.0 mm (Massive production runs) |
| Leveling Integration | Optional 2-high / 4-high entry flattener | Essential 4-high / 6-high precision leveler | Heavy-duty 4-high hydraulic cassette leveler |
| Downstream Consumers | ERW tube mills, roll-formers, stamping lines | Electrical enclosures, laser cutting centers | Shipbuilding, auto chassis, construction machinery |
| Key Precision Indicators | Width tolerance ±0.03mm, Camber <0.5mm/m | Length tolerance ±0.2mm, Diagonal ±0.5mm | Continuous length tolerance ±0.5mm at 80m/min |
Four Decades of Excellence
Enterprise Authority: Wuxi Jianfa Machine-Building
Founded in the early 1980s as a national key developing enterprise in China's metallurgical machinery sector. Operating from a modern 40,000 m² heavy assembly complex.
40+
Years Engineering Heritage
40,000m²
Heavy Machining Workshops
45M RMB
Registered Capital
30+ Countries
Export Market Presence
Vertical Manufacturing Control
Every arbor spindle, heavy reduction gearbox, slide bearing, and frame housing is turned, milled, and normalized inside Jianfa's own workshops. No third-party trading markups or compromised quality control.
Smart Automation & HMI
Equipped with Siemens S7-1500 PLC platforms, Yaskawa/Inovance servo motion controls, and closed-loop hydraulic encoders for automated coil centering, real-time strip thickness feedback, and remote diagnostics.
Global On-Site Deployment
Complete turn-key site commissioning, hydraulic pipeline purging, optical arbor leveling, and operator training delivered by factory engineers across the Americas, Europe, Middle East, and Southeast Asia.
Innovation Roadmap
Next-Generation Slitting Technology & Industry 4.0
Anticipating the technological shifts in high-efficiency coil slitting lines over the next five years.
Robotic Knife Tooling Positioning
Eliminating human operator error via automated gantry robots that load slitter blades, rubber stripper rings, and clearance shims based on dynamic coil grade recipes stored directly in the master ERP.
AI Vision Inline Edge Inspection
Integrating high-speed line scan cameras capturing 100% of edge profiles at 180 m/min, instantly detecting knife chipping, edge burrs beyond tolerance, or micro-cracking in electrical steel ribbons.
Kinetic Energy Recovery (KERS)
Regenerative braking drives on the uncoiler brake and recoiler tension stations feeding electrical power back into the factory grid during line deceleration, reducing net kilowatt consumption by up to 28%.
Audit-Ready Reliability
Safety Directives, CE Compliance & Factory Acceptance
Exporting heavy machinery necessitates total regulatory harmony with international electrical, mechanical, and safety standards.
CE Machinery Directive (2006/42/EC)
Full integration of dual-channel safety relays, perimeter optical light curtains, perimeter safety fences with interlock door switches, and certified emergency stop pull cords along the entire strip feed path.
Factory Acceptance Testing (FAT)
Every customer is invited to our Wuxi works to witness full coil loading, uncoiling, slitting, multi-strand recoiling, and safety shutdown procedures before export ocean crating commences.
Ocean Freight Heavy Preservation
Bare metal surfaces coated with vapor corrosion inhibitors (VCI), machine components vacuum-wrapped in multi-layer foil barrier liners, and reinforced timber skids bolted inside open-top/flat-rack containers.
Factory-Direct Catalog
Industrial Coil Processing Machinery Lines
Explore customized capacity configurations engineered to handle yield strengths up to 1200 MPa and strip widths up to 2200 mm.
Heavy Plate
High Strength Leveling Machine
Constructed with high-rigidity 4-high roll arrangements ensuring extreme flat sheet delivery for thick structural steel.
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Precision Mill
Professional Straightening Machine
Fine tolerance straightening rolls with individualized hydraulic wedge height adjustment for laser flat results.
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Non-Stop Output
Hot Rolled Plate Moving Shear Line
Advanced rack-and-pinion servo carriage ensures uninterrupted synchronized cutting at line speeds up to 60m/min.
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Zero-Scratch Process
Stainless Steel Shearing & Stacking Line
Specialized rubber-wrapped backing rollers and automated drop stackers preserving pristine BA/2B surfaces.
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Multi-Tasking Station
HR Coil Slitting-Leveling-CTL Line
Integrates coil side trimming, multi-strip slitting, and transverse cutoff on a unified computerized production chassis.
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Heavy Slitter Line
Hot Rolled Slitting and Recoiling Line
Hydraulic expansion mandrel recoiler equipped with pneumatic over-arm separator and rapid coil push-off car.
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High-Torque Drive
HR Uncoiling-Slitting-Recoiling Line
Optimized for high-yield structural tube fabrication lines with high duty-cycle hydraulic scrap choppers.
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Automated Stacking
HR Sheet Shearing-Stacking Line
High-speed mechanical cutoff shear combined with continuous double-bin air cushion automatic sheet stacking tables.
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Expert Consultation
Frequently Asked Engineering & Procurement Questions
Comprehensive answers regarding line customization, electrical architecture, knife setup tolerances, and overseas plant readiness.
What coil processing equipment does Wuxi Jianfa manufacture?
We manufacture turnkey metallurgical processing lines: rotary shear steel coil slitting lines, start-stop cut to length lines, synchronized flying shear lines, 4-high and 6-high cassette leveling machines, plate straightening machinery, and continuous coil galvanizing production lines. Equipment is provided as complete automated production systems or modular standalone retrofits.
Which steel grades and alloy materials can Jianfa lines accommodate?
Our lines are engineered to process hot-rolled structural steel (Q235, Q355, ASTM A36), cold-rolled carbon steel, silicon electrical steel (CRGO/CRNGO), galvanized sheets, austenitic and ferritic stainless steel (grade 200, 300, 400 series), and 1xxx to 7xxx series aluminum coils up to 1200 MPa tensile strength.
How do I determine whether to invest in a Slitting Line or a Cut-to-Length Line?
Select a Slitting Line if your downstream operations require coils of narrow ribbon width for automated roll-forming, welded tube mills, or continuous stamping lines. Choose a Cut-to-Length Line if your end products are flat rectangular plates for laser cutting, bending brakes, or cabinet manufacturing. If space is tight and budgets are constrained, our combined Slit-and-CTL line offers dual capabilities.
What parameters are required to generate an engineering layout proposal?
Please supply your coil material grade (Yield & Tensile Strength), sheet thickness range (min/max mm), entry coil width (min/max mm), maximum coil weight (MT), internal and external coil diameters, target strip widths, required monthly output tonnage, and the available shop floor dimensions including overhead crane capacity.
How is arbor spindle runout minimized on Jianfa slitting heads?
Arbor shafts are forged from 40Cr/42CrMo alloy, quenched, tempered, and precision ground to achieve a radial and axial runout tolerance of less than 0.005 mm. They are mounted on paired ultra-high-precision SKF/FAG angular contact bearings, ensuring zero strip edge burr expansion even at maximum blade count loads.
What international on-site commissioning and service guarantees do you provide?
Jianfa dispatches a dedicated team of mechanical, hydraulic, and electrical commissioning engineers to your plant to oversee foundation anchoring, wiring, testing, and continuous operator training. We maintain complete spare parts records and provide 24/7 remote IoT diagnostics to minimize factory downtime.