Precision Coil Straighteners & Processing Machinery
Engineered to eliminate internal strip stress, coil camber, and cross bow with micron-level leveling repeatability for worldwide metal distribution hubs.
High Strength Leveling Machine
High-yield multi-roller cassette leveler designed for heavy plate, ultra-high strength automotive alloys, and tough structural steels.
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Professional Straightening Machine
Eliminates internal tension and achieves mirror flatness for electrical steel, cold-rolled sheets, and high-precision stamping lines.
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Hot Rolled Plate Moving Shear Line
Dynamic flying shear mechanism synchronizing with continuous high-speed hot-rolled strips without marking the surface.
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Stainless Steel Cut-To-Length Line
Specialized uncoiling, high-density roller leveling, and non-marking automated stacking line for austenitic and ferritic coils.
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HR Slitting & CTL Production Line
Dual-purpose space-saving infrastructure delivering multi-strip slitting and synchronized sheet shearing from a single master coil.
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Hot Rolled Slitting & Recoiling Line
Engineered for high-tonnage coil processing with automatic shimless tooling, dynamic back-tensioners, and scrap ballers.
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HR Uncoiling-Slitting-Recoiling Line
Heavy structural grade rotary slitter designed for feeding ERW tube mills and cold-formed profile extrusion lines continuously.
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HR Uncoiling-Leveling-Shearing Line
Robust 4-Hi and 6-Hi roll configurations handling coils up to 25mm thick with precision hydraulic stop-and-go or flying cutters.
Learn MoreMacro Trends: The Global Roller and Straightener Ecosystem
Evaluating modern metallurgy, high-strength sheet deformation dynamics, and why tier-one processors favor direct Chinese manufacturing clusters.
Global Metallurgy Evolution
Global manufacturers are shifting toward AHSS (Advanced High-Strength Steels), lightweight aluminum alloys, and silicon electrical sheets. These metals exhibit aggressive spring-back and residual yield stresses that traditional four-roll levelers cannot rectify, driving demand for multi-roll roller levelers with intermediate backup rolls.
Chinese Supply Chain Dominance
Located in the Yangtze River Delta, Wuxi Jianfa benefits from localized metallurgical clusters. Sourcing forged alloy steel rolls (such as 60CrMoV or GCr15), precision deep-hole boring, induction hardening furnaces, and Siemens automation under one perimeter cuts fabrication cycle times by 45% compared to Western European rivals.
Total Cost of Ownership (TCO)
Industrial procurement is no longer based solely on CapEx. Jianfa's factory-direct lines lower operational expenditure via energy-regenerative DC/AC common bus drives, automated knife clearance calibration, and wear-resistant roll chrome plating that delivers millions of metric tons before re-grinding.
Selection Guide: Kinematics of Metal Straightening & Shearing
A rigorous breakdown comparing multi-roll mechanical levelers, flying shears, and high-speed precision slitting equipment for operational planning.
| Evaluation Parameter | High-Precision Roller Leveler | Rotary / Flying Shear CTL Line | High-Speed Strip Slitting Line |
|---|---|---|---|
| Primary Target | Neutralization of residual stresses, edge waves, & coil-set | Continuous zero-stop sheet squaring, sizing, and stacking | Precision longitudinal strip splitting & tight recoiling |
| Roll / Tool Configuration | 4-Hi, 5-Hi, or 6-Hi cassettes with 11 to 23 micro-alloy rollers | Synchronized rotary drum or eccentric orbital shear blades | Tungsten/alloy tool steel rotary knives with shimless tooling |
| Material Gauge Range | 0.2 mm – 25.0 mm (dependent on yield strength) | 0.5 mm – 16.0 mm (high-yield structural grades) | 0.15 mm – 16.0 mm (HR, CR, Stainless, Brass, Aluminum) |
| Line Velocity Potential | Up to 80 m/min synchronized processing | Up to 120 m/min continuous non-stop fly cutting | Up to 250 m/min dynamic slitting & recoiling |
| Core Value Addition | Guarantees laser-flat tolerances for subsequent laser cutting | Eliminates start-stop surface abrasions and boosts daily yield | Provides high-aspect slitted coils for tube mills and stampers |
Serving Critical Downstream Industrial Sectors
How tailored straighteners and coil processors solve specific challenges across diverse geographic and industrial manufacturing environments.
Automotive Stamping Substrates
Automotive body panels and structural members demand Class-A surface standards. Our 6-Hi levelers feature intermediate rollers preventing work roll deflection, ensuring that exposed galvanized and aluminum sheets remain free of roller marks, scratches, or micro-cracking.
Construction & Infrastructure
Used widely in emerging infrastructure in Southeast Asia, Central Asia, and Latin America. Jianfa heavy-gauge cut-to-length lines flatten thick hot-rolled structural steel plates for bridge decking, pre-engineered steel buildings (PEB), and heavy transport chassis.
Transformer & Electrical Motors
Processing CRGO and CRNGO silicon steels requires zero edge burr, ultra-tight width tolerances (±0.05 mm), and strictly controlled tension during recoiling. Our slitting lines are outfitted with specialized polyurethane-coated tension rolls and carbide slitters.
Procurement Requirements Profile
International purchasing teams prioritize: (1) CE and ISO9001 quality compliance, (2) Field-proven PLC architecture (Siemens S7-1500 / Allen Bradley), (3) Fully documented hydraulic/electrical schematics, and (4) Comprehensive overseas on-site commissioning teams.
Smart Straightening Technologies: The Future of Coil Processing
Transitioning from manual mechanical adjustments to closed-loop digital leveling and AI-assisted predictive diagnostics.
Closed-Loop Optical Flatness Feedback
Modern Jianfa lines can be integrated with laser stroboscopic flatness measuring sensors. Flatness data downstream feeds back directly to hydraulic servo-cylinders under backup rolls, auto-correcting edge wave or center buckle within milliseconds.
Predictive Roll Wear Monitoring
By monitoring motor torque fluctuations, bearing temperature profiles, and roll vibration frequencies, our onboard IoT edge controllers forecast roll surface degradation and bearing fatigue before catastrophic sheet surface marking happens.
Remote Tele-Service Diagnostics
Every overseas export line features integrated secure VPN gateways allowing our Wuxi software engineering team to monitor I/O status, tweak motion profiles, and assist on-site plant operators in real time, drastically cutting service call waiting periods.
Frequently Asked Questions on Roller and Straightener Machinery
Clear, unvarnished insights into machine sizing, metallurgical limits, and global deployment protocols.
What coil processing equipment does Wuxi Jianfa manufacture?
We manufacture complete coil processing lines: slitting lines (rotary shear lines), cut to length lines, flying shear production lines, leveling machines, straightening machines and galvanizing production lines. Equipment can be supplied as a complete line or as individual machines to upgrade an existing line.
Which materials can your slitting and cut to length lines process?
Our lines process hot-rolled, cold-rolled, galvanized, stainless steel and aluminum coils, including high-strength grades. Each line is configured around your thickness range, coil width, yield strength and surface-quality requirements.
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 strips recoiled for tube mills, roll forming or stamping. Choose a cut to length line when you need flat, stacked sheets or plates. Choose a flying shear line when you need high-volume sheet output, because the shear cuts while the strip keeps moving. Combined slitting and cut to length lines are also available.
What is the difference between a 4-Hi, 5-Hi, and 6-Hi roller straightener?
A 4-Hi straightener features work rolls backed directly by backup rolls, ideal for general construction carbon steel. A 5-Hi straightener adds intermediate rolls to one bank to diminish roll shadows. A 6-Hi straightener incorporates intermediate rolls on both upper and lower banks; this prevents the backup rollers from burnishing the work rolls, preventing any surface impressions when processing sensitive materials like cold-rolled automotive steel, polished stainless steel, and aluminum.
What engineering information is required to receive a customized technical proposal?
Please share the material grade and yield strength, coil thickness and width range, maximum coil weight and inner/outer diameter, required output (strip widths and count, or sheet length range), tolerance and flatness requirements, target line speed and the power supply at your plant.
Do you support installation, commissioning and operator training overseas?
Yes. Our after-sales team supports installation, commissioning and operator training, and continues with remote technical support and spare parts supply after start-up.
Can I visit the factory and inspect my equipment before delivery?
Yes. Buyers are welcome to visit our 40,000 m² facility in Wuxi, Jiangsu, within easy reach of Shanghai by high-speed rail, to review production and inspect their equipment before delivery.
High-Performance Slitting, Shearing & Leveling Portfolio
Select any machine below to inspect technical specifications or request tailored engineering configuration drawings.
China Manufacturer Of Slitting Line
Precision high-speed rotary slitting system equipped with dual-head swiveling turret, precision arbors, and hydraulic scrap coilers.
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Flying Shear Production Line
High-cadence synchronized moving shear that processes running strip without stop-motion friction or surface abrasions.
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Cut to Length Production Line
Full CE-compliant automated leveling and cut-to-length installation designed for global steel processors and metal service centers.
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Heavy Plate Leveling Machine
Heavy duty 4-Hi roller cassette capable of handling thick, high-tensile hot rolled coils with hydraulic gap stabilization.
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Multi-Roll Precision Straightener
Equipped with 19 to 23 micro-finished leveling rolls delivering superior sheet flatness for subsequent punch and laser fabrication.
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High Throughput Moving Shear
Servo-driven flying cutting carriage engineered for rapid sheet sizing with automated drop-stacking and pallet exchange.
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Stainless Uncoiling & Stacking Line
Specialized PVC film applicators and air-cushion stackers ensure flawless surfaces on cold-rolled and mirror-finish stainless sheets.
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Continuous Coil Slitting Plant
Heavy structural frame design featuring dynamic hydraulic push-off plates, turnstiles, and automated coil banding packaging arms.
View Product DetailsVerified Industrial Credentials & Standards Compliance
Integrity guides every Jianfa installation. Inspect our enterprise honors and metallurgical machinery certifications.
