Heavy Duty
High Strength Leveling Machine
Designed for ultra-high-yield steels up to 1200 MPa, eliminating coil-set and center-buckle deformation.
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Precision Engineering Portfolio
High-Accuracy Levelers & Metallurgical Production Units
Direct manufacturer solutions eliminating coil set, edge wave, and cross-break stresses across all metal thicknesses.
Tolerance Control
Professional Straightening Machine
Multi-roller mechanical precision unit for thick sheets and plates preparing optimal stamping blanks.
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High Throughput
Hot Rolled Plate Moving Shear Line
High-efficiency shearing operating continuously in dynamic tracking sync with line travel speeds.
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Surface Finish 2B/BA
Stainless Steel Cut-To-Length Line
Specialized chrome and PU backed rollers providing zero scratching on mirror-grade surfaces.
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Compact Footprint
Combined Slitting & CTL Line
Space-saving consolidated layout processing master coils directly into slit blanks and precision sheets.
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Precision Slitting
HR Sheet Slitting & Recoiling Line
Rotary circular knife tooling providing minimum strip burr and tensioned recoiling integrity.
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Heavy Mill Spec
HR Uncoiling-Slitting-Recoiling Line
Engineered for high-yield pipe mills, infrastructure beams, and heavy chassis framing applications.
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Automated Stacking
HR Coil Leveling & Shearing Line
Integrated automated electromagnetic and pneumatic magnetic drop stacking up to 25mm thickness.
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Industry State of the Art
The Global Landscape of Industrial Leveling Technology
Residual stress control in sheet metal has evolved from empirical mechanical adjustments into automated hydraulic bending compensation.
40+
Years Engineering Heritage
40,000m²
Dedicated Production Facility
30+
Export Destination Markets
45M RMB
Registered Manufacturing Capital
Advanced Plastic Deformation
Modern leveling relies on repeated alternating reverse bending under targeted tension. By subjecting outer sheet fibers to >70% plastic strain while maintaining neutral axis integrity, internal residual stresses are equalized, preventing re-warping after laser cutting.
Stress EliminationHydraulic Roll Bending Control
Traditional fixed levelers cannot adapt to crown defects or uneven gauge cross-sections. Contemporary smart multi-roller levelers utilize individual backup flight jacks driven by servo-hydraulic valves to independently compensate roll intermesh on the fly.
Dynamic Crown FixHigh-Strength Alloy Metallurgy
As the automotive and renewable sectors shift toward AHSS (Advanced High-Strength Steel) and structural titanium/aluminum, machines must withstand immense reaction forces without housing flexure or premature drive spindle fatigue.
AHSS / UHSS Ready
Manufacturing Competitiveness
Engineering Supply Chain Advantages from Wuxi, China
Why Tier-1 metal fabricators choose Chinese factory-direct machinery over fragmented third-party assemblies.
Full-Cycle In-House Tooling
From frame stress relieving to heavy gantry CNC milling, roller case-hardening, ground mirror polishing, and electrical bus bar assembly, Wuxi Jianfa controls 100% of the manufacturing processes within our 40,000 m² plant.
Yangtze Delta Cluster Power
Situated in Wuxi, Jiangsu, we are adjacent to world-class steel foundries, heat-treatment facilities, and Shanghai maritime container terminals. This geographical synergy accelerates engineering cycles and reduces freight lead times.
National Developing Enterprise
Recognized as a national key developing enterprise in China's metallurgical machinery sector, our equipment adheres to rigorous ISO standards and CE machinery safety directives for guaranteed compliance.
Direct Engineering Consultation
Eliminate non-technical export brokers. Our buyers communicate directly with metallurgical mechanical designers, ensuring coil yield stresses, drive gearbox sizing, and safety interlocking match precise field goals.
Engineering Matrix
Coil Processing Architectural Comparison
Evaluate leveling, rotary slitting, and synchronized flying shear lines against structural yield parameters.
| Evaluation Parameter | Precision Multi-Roll Leveler | High-Speed Slitting Line | Synchronized Flying Shear Line |
|---|---|---|---|
| Primary Mechanical Role | Elimination of residual stresses, coil memory, crossbow, and wave | Longitudinal shearing of master coils into high-tolerance narrow bands | Dynamic flying cut of moving strip into precise flat rectangular sheets |
| Leveling Roller Array | 11 to 23 work rolls backed up by multi-point support flights | Auxiliary 5 to 7 flattener rolls primarily for strip feeding | Precision 4-Hi / 6-Hi leveling machine embedded directly upstream |
| Material Gauge Range | 0.2 mm up to 25.0 mm (high-yield structural plates) | 0.2 mm up to 16.0 mm (hot rolled, cold rolled, galvanized) | 0.5 mm up to 12.0 mm (commercial and structural plates) |
| Strip Movement State | Continuous controlled transit or start-stop line integration | Continuous uninterrupted winding with tension back-braking | Continuous forward motion; shear accelerates to synchronous line speed |
| Drive Control Logic | Servo-hydraulic individual gap setting with AC inverter/servo drive | Dual tension loops, hydraulic slip recoiler, and scrap ballers | Rotary encoder linear tracking, electronic camming, flying cutoff |
| Downstream Consumers | Laser cutting centers, automotive stamping, appliance panels | Tube & pipe manufacturers, roll forming lines, stamping houses | Steel distribution service centers, architectural cladding fabricators |
Target Deployments
Localized Applications & Global Procurement Requirements
Delivering high-uptime metal flatware across key industrial regions spanning over 30 countries.
Automotive & Commercial Vehicle
Automated lines producing blanking sheets for chassis beams, cab paneling, and cross members where zero springback during stamping or robotic MIG welding is mandatory.
Precision Steel Service Centers
Contract toll processors serving aerospace, laser job shops, and electrical enclosure builders requiring quick-change cassette roller systems to prevent cross-alloy contamination.
Renewable Energy Structures
Mounting brackets, solar tracker purlins, and wind turbine tower wraps requiring thick-gauge galvanized and high-yield corten steels flattened with strict linear camber control.
Heavy Machinery & Boilers
Processing hot rolled plates up to 25mm thickness for excavators, pressure vessels, and shipbuilding where mechanical straightening relieves localized thermal cutting deformities.
United States
Mexico
Brazil
Germany
Türkiye
Russia
Kazakhstan
Egypt
United Arab Emirates
India
Vietnam
Indonesia
Australia
South Africa
Future Horizons
Technological Frontiers in Industrial Leveling Machinery
The next decade of coil conversion will be characterized by sensory intelligence, automated recipe matching, and energy recuperation.
AI Optical Flatness Scanning
Inline optical laser triangulation and high-frequency vision systems scan plate surfaces at 120 m/min, detecting sub-millimeter waves and dynamically feeding micro-adjustments to individual hydraulic cylinders before exit.
Closed-Loop CorrectionPredictive Cloud Diagnostics
Integrated vibration and thermal transducers on all primary reduction gearboxes, pinion stands, and cardan shaft joints feed machine telemetry to remote service engineers for scheduled predictive maintenance.
Zero Unplanned DowntimeKinetic Energy Recovery (AFE)
Active Front End (AFE) regenerative drive units capture deceleration momentum from massive uncoiler drag and flying shear cycle stops, feeding electricity back into the factory grid and lowering total kilowatt consumption by up to 28%.
Green Metallurgy
Engineering Help Center
Frequently Asked Questions on Leveling & Coil Lines
Key technical answers for procurement directors, plant managers, and metallurgical engineers.
What is the mechanical difference between a flattener and a precision leveler?
A simple flattener commonly features 5 to 7 unbacked rolls designed purely to remove coil curvature (coil set) so strip can feed into downstream shears. A precision leveler utilizes 11 to 23 smaller-diameter, closely spaced rollers backed by adjustable support flights that flex the material beyond its plastic yield limit, resolving center buckle, wavy edges, and internal stresses.
What machine configuration prevents roll deflection on heavy gauge plates?
To eliminate center roller deflection caused by high-yield metal reactions, we implement 4-Hi or 6-Hi multi-flight backup structures. Multi-point motorized wedge or servo-hydraulic assemblies actively exert counter-thrust on intermediate and work rolls across the entire machine width, ensuring uniform gap geometry.
How does Wuxi Jianfa ensure roll surface durability and corrosion protection?
All leveling rolls are forged from alloy tool steels (such as 42CrMo, GCr15, or 9Cr2Mo), followed by medium-frequency induction hardening to 60–62 HRC, deep cryogenic stabilization, cylindrical precision grinding, and hard chrome plating (0.03–0.05 mm) polished to Ra ≤ 0.2 μm.
Can a single leveling machine handle both thin aluminum and thick steel coils?
Due to mechanical constraints where roller diameter and pitch determine the workable gauge envelope, a single roll cassette cannot ideally process both 0.5mm aluminum and 16mm steel. We engineer interchangeable quick-change cassette systems allowing dual cassettes (e.g., small roll set and large roll set) on one base frame.
What specific engineering parameters must buyers furnish for a custom line proposal?
Key parameters include: material chemistry and yield strength (MPa), thickness min/max (mm), coil width range (mm), max master coil weight (tons), internal and external coil diameters, target cut-to-length sheet accuracy (±mm), target line operating speed (m/min), and local factory electrical supply.
How does Wuxi Jianfa assist overseas installation and commissioning?
We dispatch certified mechanical and electrical engineers directly to your plant for anchor bolting supervision, hydraulic interconnection, wiring validation, no-load and full-load commissioning, operator training, and local PLC tuning, supported by lifetime remote telemetry assistance.
Complete Equipment Series
Industrial Cut-To-Length, Slitting & Shear Systems
Explore our heavy-gauge production systems operating across global metallurgical facilities.
Certified Standard
CE Certification Manufacturer Of Cut to Length Line Manufacturer, Suppliers
Fully compliant European safety standard cut to length processing lines equipped with precision multi-roll leveling machines.
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Heavy Slitting
China Manufacturer Of Slitting Line Manufacturers, Supplier
Direct factory manufacturing of high-rigidity slitter tooling stands, scrap handling, and tension separators.
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Continuous Flying Cut
High-Quality Professional Flying Shear Production Line Manufacturer, Supplier
Dynamic rack-and-pinion or servo ball screw synchronization delivering continuous nonstop cutting throughput.
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Plate Straightener
High Strength Leveling Machine For Steel Plate
Multi-roll leveling that removes coil set and edge wave in high-yield-strength plate components.
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Sheet Precision
Professional Straightening Machine For Metal Sheet
Precision straightening for flat, stress-relieved sheet ahead of laser cutting or precision roll forming.
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High Throughput
Hot Rolled Plate Moving Shear Line
Shear travels synchronously with the strip to cut plate without stopping — engineered for max throughput.
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Mirror Protective
Stainless Steel Uncoiling Leveling Stacking Line
Surface-friendly handling for stainless coil, from uncoiler to neatly stacked scratch-free packs.
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2-In-1 Workflow
HR Uncoiling-Slitting-Leveling-CTL Production Line
Consolidated machine footprint performing slitting and cutting to length within a single unified control zone.
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