High Strength Leveling Machine
Engineered for thick plates and ultra-high-yield steels. Eliminates internal stress, cross 9-roll configurations, and heavy residual camber.
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Precision Coil Equipment
Featured Heavy-Duty Leveling & Coil Processing Units
Factory-direct coil uncoiling, multi-roller leveling, flying shears, and slitting systems certified to strict ISO 9001 and CE directives.
Professional Straightening Machine
High-precision multi-roll straightening equipment ensuring micro-flatness on automotive, appliance, and stamped strip surfaces.
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Hot Rolled Plate Moving Shear Line
Dynamic continuous shearing line designed for heavy throughput without stopping strip motion, delivering high yields and clean edges.
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Stainless Steel Leveling & Shearing Line
Designed specifically with mirror-finish non-marking rolls to level, trim, and stack delicate stainless steel and aluminum coils.
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HR Coil Combined Slitting & CTL Line
All-in-one footprint incorporating multi-roll leveling, longitudinal rotary slitting, and transverse flying shearing for steel centers.
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HR Sheet Slitting & Recoiling Line
High-speed rotary shear slitting equipment configured for heavy master coils, delivering burr-free edges and tight recoiling tension.
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HR Uncoiling-Slitting-Recoiling Unit
Precision longitudinal slitting machine engineered to feed continuous tube mills, roll forming sections, and automotive stampings.
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HR Sheet Leveling & Shearing Stacker
Integrated automated line that uncoils, levels heavy structural steel, shears to millimetric tolerances, and auto-stacks plate packs.
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Market Dynamics
Global Procurement Needs in High-Precision Metal Processing
As advanced manufacturing transitions to lightweight, high-yield alloys, standard leveling and lathe bed straightening machines face unprecedented quality challenges.
High-Strength Steel Stress Elimination
Global fabricators working with Advanced High Strength Steels (AHSS) and automotive grades (up to 1200 MPa yield) face major springback and edge-wave issues. Multi-roll leveling lines with dynamic hydraulic roll-bending are essential to reset microscopic lattice stresses before CNC machining.
Mandatory CE & Safety Compliance
Procurement teams across Europe, North America, and emerging markets mandate rigorous conformity to the European Machinery Directive 2006/42/EC, EN ISO 12100 risk assessments, and EN 60204-1 electrical safety to ensure operator protection, fail-safe interlocking, and zero liability risks.
Downstream Automation Integration
Modern lathe bed manufacturing and profile fabrication facilities demand automated material feed-in. Levelers are no longer standalone systems; they require real-time fieldbus integration (EtherCAT, PROFINET), automatic roll gap positioning, and automated coil thickness compensation.
Engineering Deep Dive
Technical Architecture: Engineering Multi-Roll Leveling Systems
A comparative analysis of roller geometries, anti-camber back-up bearings, and precision servo-driven leveling mechanics for industrial metal applications.
| Equipment Classification | Roll Geometry & Staging | Yield Strength Range | CE Safety Architecture | Primary Industrial Use-Case |
|---|---|---|---|---|
| High-Strength Plate Leveler | 9 - 13 Rolls (Ø 120-220mm) + 4-high back-up | Yield ≤ 1100 N/mm² | Hydraulic Overload Safety, EN 60204-1 | Heavy structural steel, lathe bases, armor plate |
| Precision Lathe Bed Straightener | 17 - 23 Rolls (Ø 40-80mm) + 6-high back-up | Yield ≤ 650 N/mm² | Optical Light Curtains, Category 4 Stop | Machine tool slideways, precision guide rails |
| Dynamic Flying Shear Leveler | 11 - 15 Rolls with continuous sync shear | Yield ≤ 850 N/mm² | Closed-loop Servo Interlocks, ISO 13849-1 | High-output steel processing centers & stamping mills |
| Non-Marking Stainless Leveler | 19 - 21 Chromium-plated mirror rolls | Yield ≤ 550 N/mm² | Dual-zone perimeter lasers, CE EMC compliance | Architectural panels, food-grade processing shells |
Plastic-Elastic Bending Mechanics
True residual stress relief demands that raw sheet metal is bent alternatingly past its yield point in decreasing amplitudes. Wuxi Jianfa utilizes finite element modeled (FEM) roll intermeshing, ensuring that outer fibers undergo greater than 75% plastic deformation at the entry rollers, tapering to pure elastic calibration at the exit. This neutralizes cross-bow, coil set, and edge stretch permanently.
Intelligent Thickness Sensing & Auto-Gap
Inconsistent coil gauge often disrupts automated cutting lines. Modern Jianfa leveling systems integrate high-frequency laser displacement gauges linked directly to hydraulic servo valves. The machine automatically compensates for roll deflection and incoming thickness variances within milliseconds, keeping exit flatness within 0.1mm per linear meter.
40+ Years of Manufacturing Integrity
Industrial Scale, In-House Precision Machining
Founded in the early 1980s, Wuxi Jianfa Machine-Building Co., Ltd. operates a state-of-the-art 40,000 m² heavy assembly complex serving world-class metallurgy hubs.
40+
Years In Industry
Building metallurgy equipment since 1980s
40,000
Square Meters Plant
Modern machining & heavy crane bays
30+
Countries Exported
Operating in Europe, Americas & Asia
200+
Skilled Specialists
Dedicated R&D, assembly & field engineers
Certified Integrity
Audited Quality Systems & CE Compliance
Our plant is an ISO9001 registered manufacturer and recognized as a National Key Developing Enterprise in China’s metallurgical machinery sector.
Engineering Knowledge Base
Frequently Asked Technical & Sourcing Questions
Direct answers on leveling tolerances, CE safety protocols, commissioning timelines, and heavy machine customization.
What defines CE certification for lathe leveling and coil straightening machines?
Under EU directives, CE certification for leveling machinery requires full conformity with the Machinery Directive 2006/42/EC, Low Voltage Directive 2014/35/EU, and Electromagnetic Compatibility (EMC) Directive 2014/30/EU. In mechanical design, it mandates physical interlocks, emergency stop category 0/1 compliance (EN ISO 13850), anti-pinch finger guards on pinch rolls, and sound dampening below 80 dB(A). Complete technical documentation and a Declaration of Conformity are supplied with each export shipment.
How does roll diameter and number of rolls impact leveling precision?
Thinner strip materials require smaller roll diameters with close pitch spacing and a higher roll count (19 to 23 rolls) to achieve sufficient alternating plastic bends without fluting. Conversely, heavy-gauge plates (10mm to 25mm) utilize larger roll diameters (160mm to 220mm) and 9 to 13 rolls to generate the immense bending moments needed to overcome high yield points without catastrophic shaft deflection.
What materials and strength grades can Jianfa leveling lines process?
Our lines are engineered to process hot-rolled mild steel, cold-rolled carbon sheets, automotive galvanized coatings, silicon steel, structural aluminum alloys, and grades of stainless steel (304, 316, 430). Our heavy-duty leveling equipment regularly handles high-yield steels up to 1100 N/mm² yield strength with specialized hardened and nitrided rolls.
What is the difference between a standalone leveler and an automated Cut to Length (CTL) line?
A standalone leveler processes pre-cut sheet blanks or feeds directly into an existing punch press or lathe bed preparation fixture. A Cut to Length (CTL) line is a comprehensive automated turnkey system incorporating an uncoiler, entry crop shear, multi-roll precision leveler, optical length measuring unit, synchronized shear (mechanical or hydraulic flying shear), and automated electromagnetic or pneumatic drop stackers.
How does Wuxi Jianfa manage overseas installation, commissioning, and support?
Our engineers provide complete lifecycle support: foundation drawing layouts, remote pre-installation guidance, on-site mechanical alignment, electrical hook-up, test running with master coils, and operator safety training. All PLC systems are configured with remote industrial IoT modules enabling direct diagnostics and troubleshooting from our Wuxi technical center.
Complete System Catalog
Explore Available Sourcing Solutions
Direct from factory production lines: slitting, rotary shearing, multi-roller leveling, and high-speed flying shear lines.
China Manufacturer Of Slitting Line
Heavy-duty coil slitting equipment engineered for rapid blade clearance changes, tight recoil edge alignment, and high-speed operation.
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High-Quality Flying Shear Production Line
Continuous dynamic shearing line delivering millimetric length precision while running continuous strip speeds up to 80 m/min.
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CE Certified Cut to Length Line
Full CE compliance integration with safety light barriers, closed-loop servo leveling, and rapid stack exchange stations.
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Heavy-Plate Multi-Roll Straightener
Equipped with intermediate support rolls and high-torque planetary drives to handle tough structural coils and lathe components.
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Precision Metal Sheet Straightening System
Automated roll-gap monitoring ensures exact strip flatness, eliminating residual bow prior to laser cutting or turret punching.
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Hot Rolled Moving Shear Production Line
Engineered for thick sheet processing centers needing high-duty continuous plate cutting without surface friction scratches.
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Stainless Steel Leveling & Shearing Unit
Features hard-chromed rollers and non-abrasive conveyor belts designed specifically for high-spec architectural and elevator panels.
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Integrated Uncoiling-Slitting-Leveling Line
Combines slitting knives with precision leveling rollers, delivering custom-sized flat plates and sheared strips in a unified line.
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Direct Factory Technical Consultation
Plan Your Precision Line With Jianfa Engineers
Receive comprehensive engineering layouts, roller configuration calculations, and CE documentation tailored to your mill specifications.
Facility Address: No. 58 Qunxing Rd, Meicun, Xinwu District, Wuxi, Jiangsu, China
Direct Sales Contact: +86 139 2116 6015 / +86 510 8815 1451
Engineering Email: [email protected] / [email protected]