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 information should I send to receive an accurate 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.

Famous Double Decoiler Supplier & Factories

Primary Machinery Lineup

High-Performance Coil Processing Lines

Engineered for high-yield steel coils, aerospace aluminum, and critical automotive stampings. Zero-downtime double mandrel integration for maximum line efficiency.

High Strength Leveling Machine

Engineered multi-roll structural configuration to eradicate heavy coil set, residual stresses, and strip curvature in ultra-high yield materials.

Configure Machine

Professional Straightening Machine

Micron-precision CNC leveling designed for non-ferrous and specialty alloy blanks feeding high-speed stamping presses.

Configure Machine

Hot Rolled Plate Moving Shear Line

Dynamic synchronized shear mechanics cuts moving strip seamlessly without deceleration, delivering peak throughput volumes.

Configure Machine

Stainless Steel Cut to Length Line

Zero-mar surface handling line incorporating hydraulic double decoilers and automated robotic stacking for 2B/BA finishes.

Configure Machine

Combined Slitting and Cut to Length Line

Combined Slitting & CTL Line

Hybrid dual-mandrel uncoiling, multi-strip rotary slitting, and flying guillotine shearing integrated within a unified footprint.

Configure Machine

HR Sheet Slitting & Recoiling Line

Heavy-duty hydraulic rotary gang slitting with precision arbor adjustments, scrap edge balers, and rapid recoilers.

Configure Machine

Heavy-Duty Strip Recoiling Line

Optimized for structural pipe mills, ERW tubing production, and automotive profile lines demanding continuous strip feeding.

Configure Machine

Plate Uncoiling-Leveling-Shearing Line

Industrial plate decoiling line featuring dual rotary uncoilers, 4-Hi/6-Hi levelers, and air-cushioned sheet stackers.

Configure Machine

Technological Transformation

Engineering Paradigms in Modern Double Decoiler Systems

Transitioning from traditional single-spindle uncoilers to dual-head 180° rotary uncoilers: reducing changeover cycle times from 25 minutes down to sub-90-second intervals.

Non-Stop Rotary Indexing

The dual-mandrel design allows continuous production: while spindle 'A' feeds the active slitting or blanking line, spindle 'B' is loaded and banded on the idle station, maximizing overall equipment effectiveness (OEE).

Closed-Loop Tension Sensing

Integrated pneumatic disc brakes and AC vector drive back-tension controls prevent strip slippage, surface scouring, and uneven edge deformation across ultra-thin foil and heavy-gauge coils alike.

Hydraulic Wedge Expansion

Four-segment radial expansion mandrels accommodate variable coil inner diameters (ID: 508mm to 610mm, extendable to 760mm via modular rubber pads) without damaging the innermost coil wraps.

Procurement Specifications

Engineering Audit: Single vs. Double Mandrel Uncoilers

A quantifiable financial and technical assessment for plant directors and EPC engineering teams planning long-cycle line expansions.

Evaluation Parameter	Standard Single Decoiler	Advanced Double Decoiler (Wuxi Jianfa)	Operational Value Advantage
Coil Changeover Downtime	15 to 30 Minutes / Coil	< 90 Seconds (180° Swivel)	Up to 88% reduction in unproductive idle line time
Overhead Crane Dependency	Mandatory synchronization on live line	Independent offline loading	Decouples overhead crane bottlenecks from production flow
Braking & Back-Tension Control	Manual friction band brakes	Proportional pneumatic/servo back-tension	Zero strip slack, eliminated surface scratch marks
Payload Capacity per Arm	5T to 15T single cantilever	Up to 35T per spindle (dual side)	Handles giant master coils from hot strip mills
Industry 4.0 Telemetry	Analog relay control	EtherCAT / Profinet Siemens PLC	Real-time coil diameter calculation & remote diagnostics

Smart Manufacturing Ecosystem

China Industry 4.0: Supply Chain Agility & Precision

How Wuxi Jianfa Machine-Building leverages China's premier metallurgical manufacturing corridor to deliver heavy machinery built to German/Japanese geometric standards.

Vertical Integration Under One 40,000 m² Roof

Unlike trading assemblers, every critical structural housing, precision mandrel shaft (42CrMo forged, tempered, and stress-relieved), and hydraulic manifold is machined in-house using heavy floor-type CNC boring and milling centers. This complete internal cycle ensures rigorous quality assurance across every weld and bearing seat.

40+ Yrs

Engineering Heritage

Continuously engineering metallurgical machinery in Wuxi since the early 1980s.

45M RMB

Registered Capital

Solid balance sheet supporting long-lead capital equipment export projects.

30+ Countries

Global Footprint

Delivering high-reliability production lines across 6 continents.

Yangtze River Delta Logistics Superiority

Situated in Wuxi, Jiangsu, directly adjacent to deep-water berths at the Port of Shanghai. Heavy assemblies and extra-wide line sections transition seamlessly into flat-rack containers or breakbulk holds, cutting inland freight transit overhead and preventing port handling delays.

200+

Specialized Staff

Dedicated mechanical engineers, PLC programmers, and on-site field technicians.

Application Engineering

Mission-Critical Localized Applications

Engineered to adapt to distinct regional standards, steel chemistry variations, and downstream production challenges worldwide.

Automotive Tier-1 Blanking

Region: North America & Germany

Uncoiling advanced high-strength steels (AHSS, DP980, QP1180) with precise micro-tension regulation to supply multi-station progressive stamping dies without micro-cracking.

Continuous ERW Pipe Mills

Region: Southeast Asia & Middle East

Coupled with automatic strip end shear-welders and vertical horizontal accumulators, ensuring 24/7 non-stop raw strip feeding into high-frequency tube induction mills.

Silicon Steel Transformers

Region: Western Europe & Japan

Handling ultra-delicate grain-oriented (CRGO) electrical steel. Incorporates urethane mandrel coatings and photoelectric strip centering to prevent core loss-inducing edge stress.

Heavy Plate Service Centers

Region: Latin America & Australia

High-torque dual decoiling of structural hot-rolled coils up to 25mm thickness. Equipped with hydraulic hold-down snubber rolls and breaker peelers for safe coil prep.

Active Equipment Operational Footprint Across 30+ Export Markets:

United StatesMexicoGuatemala PeruBrazilArgentina GreeceAlbaniaBulgaria TürkiyeRussiaKazakhstan KyrgyzstanEgyptLibya JordanIranUnited Arab Emirates EthiopiaNigeriaSouth Africa IndiaMyanmarVietnam MalaysiaIndonesiaAustralia

Technical Knowledge Base

Frequently Asked Engineering Questions

Definitive operational guidance prepared by Wuxi Jianfa's senior metallurgical design team.

What is the primary operational ROI of a Double Decoiler?

A double decoiler dramatically reduces line stoppage by allowing the overhead crane to stage and prep a secondary coil while the primary mandrel feeds the production line. When the active coil finishes, the unit executes a 180° hydraulic swivel, presenting the new coil in under 90 seconds. This setup frequently boosts monthly sheet or strip output by 20% to 35%.

What range of materials can be processed?

Our dual-mandrel uncoilers and complete lines process hot-rolled structural carbon steel, cold-rolled automotive steels, galvanized sheets, stainless steels (300/400 series), titanium, brass, and structural aluminum alloys (5000/6000 series) with yield strengths up to 1200 MPa.

How does the system prevent strip surface scratching?

We equip our mandrels with polished polyurethane sleeves or bronze segments, combined with servo-driven back-tension control and ultrasonic loop pit controls. This setup completely eliminates strip cinch, telescoping, and friction marks on delicate high-gloss or automotive exterior finishes.

What technical data is needed to receive a custom proposal?

Please provide your material grades, minimum and maximum yield strengths (MPa), coil thickness and width ranges, maximum coil outer diameter (OD), inner diameter (ID), maximum coil weight (metric tons), target line operating speed (m/min), and plant voltage specifications.

How does Wuxi Jianfa manage overseas installation and commissioning?

We deploy bilingual, factory-trained mechanical and PLC software engineers directly to overseas client facilities. Our teams oversee foundation alignment, hydraulic piping integration, electrical tie-in, full dry-run tests, and comprehensive operator training, followed by long-term remote diagnostics.

Can international buyers inspect machinery prior to dispatch?

Yes, factory visits and full pre-shipment dry runs are welcomed. Our 40,000 m² plant is located in Wuxi, Jiangsu—approximately 40 minutes from Shanghai by high-speed rail. We also conduct detailed remote live multi-angle video inspections before sea packaging.

Complete Equipment Solutions