Precision Coil Processing & High-Tension Uncoiling Systems
Engineered for high-yield steel, stainless sheets, and non-ferrous metals. Browse our factory-calibrated core slitting, shearing, and uncoiling solutions.
High-Quality Professional Flying Shear Production Line
Engineered with heavy-duty hydraulic decoiling, high-speed tracking shear, and automatic stacker systems.
Technical Specs & RFQ
China Manufacturer Of Slitting Line
Precision multi-strip rotary slitting paired with auto-expanding hydraulic uncoiler mandrels and recoiling arms.
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CE Certification Manufacturer Of Cut to Length Line
Precision start-stop cut to length lines featuring dynamic hydraulic uncoilers with surface protection snubbers.
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High Strength Leveling Machine
Multi-roll hydraulic leveling configured to eliminate high-yield steel memory, edge waves, and center buckles.
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Professional Straightening Machine
Reliable hydraulic flattening engineered for tight-tolerance fabrication lines and stamping press preparation.
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Hot Rolled Plate Moving Shear Line
Synchronized moving shear with dynamic hydraulic decoiler decoil feed for heavy hot rolled steel coils.
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Stainless Steel Coil Uncoiling & Shearing Line
PU-coated hydraulic uncoiler mandrels designed to protect bright-finish stainless steel from slippage marks.
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Hot-Rolled Coil Uncoiling-Slitting-CTL Line
Versatile dual-mode solution powered by high-capacity wedge-expansion hydraulic uncoilers for coils up to 35 tons.
Technical Specs & RFQThe Crucial Role of the Hydraulic Uncoiler in Modern Steel Manufacturing
In high-speed coil processing lines—whether rotary slitting, continuous flying shear, or roll forming—the Hydraulic Uncoiler (also referred to as hydraulic decoiler) represents the critical gateway of tension stability, surface protection, and operating safety. A baseline uncoiler failure ripples downstream, inducing strip wander, gauge inconsistencies, burr accumulation, and hazardous line jams.
Founded in the early 1980s, Wuxi Jianfa Machine-Building Co., Ltd. has spent more than four decades solving mechanical deformation, dynamic braking synchronization, and mandrel stress fracture challenges. As a verified National Key Developing Enterprise within China's metallurgical machinery sector, we produce specialized hydraulic uncoilers capable of processing coils up to 35 metric tons with micron-level centering accuracy.
Technical Roadmap: The Evolution of Hydraulic Mandrel Mechanics
How Jianfa integrates closed-loop servo-hydraulics, anti-scratch segmented mandrels, and adaptive back-tension algorithms to meet Industry 4.0 metal processing benchmarks.
Stage 1: Closed-Loop Electro-Hydraulic Expansion
Traditional mechanical link systems suffer from uneven radial pressure, causing internal coil collapse on heavy gauges. Jianfa uses four-segment pyramid wedge expansion driven by high-pressure rotary cylinders, maintaining continuous circularity without damaging coil inner wraps.
- Dynamic pressure sensors auto-compensate hydraulic oil drop.
- Elimination of slip-stick friction across high-torque payoff cycles.
- Polyurethane sleeves prevent ID scuffing on delicate mirror stainless.
Stage 2: Ultrasonic Sensor-Guided Active Back-Tension
As coil diameter decreases from 2100mm to 508mm, back-tension must continuously modulate to maintain constant web tension. Our algorithm matches pneumatic disc and proportional hydraulic brakes against ultrasonic diameter sensing in real time.
- Prevents strip slackening during emergency line shutdowns (<0.8s).
- Maintains ±1.5% tension tolerance for high-speed flying shears.
- Drastically minimizes wave propagation into straightening rolls.
Stage 3: Automated Edge Position Control (EPC/CPC)
Telescoped or irregularly wound coils cause camber and edge defects downstream. Jianfa hydraulic uncoiler bases incorporate precision linear guide beds driven by ±100mm stroke hydraulic servocylinders paired with infrared optical edge trackers.
- Active centerline correction response time: <15 milliseconds.
- Direct alignment feed into rotary slitters reduces side trim scrap.
- Heavy-duty load cell foundation ensures high structural rigidity.
Tailored Engineering for Critical Metal Processing Applications
From Ultra-High-Strength Steel (UHSS) automotive alloys to structural API pipe manufacture, explore how our uncoiler platforms resolve core processing bottlenecks.
Automotive Stamping
Designed for DP980/DP1180 high-strength steels. Employs high-power hydraulic hold-down snubber rolls and peeler arms to safely retain extreme coil spring-back during outer strap cutting.
Heavy Plate & Pipe Mills
Processing up to 25mm thick hot-rolled coils. Outboard hydraulic support stands eliminate spindle deflection, allowing stable payoff under 30-ton dynamic cantilever loads.
Silicon Steel Laminations
Dedicated uncoilers for transformer and EV drive motor core processing. Ultra-sensitive AC servo payoff braking completely prevents edge stretching and magnetic degradation.
Pre-Painted & Galvanized
Equipped with non-marking rubberized drive rolls, secondary paper winders for coil interleaving paper rewinding, and synchronous loop control for pristine finish output.
Heavy-Duty Hydraulic Uncoiler Series Specifications
Every Jianfa payoff platform is tailored to specific factory line speeds, inner diameters (ID: 508mm/610mm/760mm), and strip profiles.
| Model Parameter | JF-HU-10T (Standard) | JF-HU-20T (Heavy Gauge) | JF-HU-35T (Mega Capacity) |
|---|---|---|---|
| Maximum Coil Weight | 10 Metric Tons | 20 Metric Tons | 35 Metric Tons |
| Applicable Strip Width | 300 – 1300 mm | 600 – 1800 mm | 800 – 2200 mm |
| Strip Thickness Range | 0.3 – 3.2 mm | 1.5 – 12.7 mm | 3.0 – 25.4 mm |
| Mandrel Expansion System | Hydraulic Wedge 470–520 mm | Multi-Segment Wedge 480–620 mm | Double-Cone or Heavy Wedge 508–760 mm |
| Outboard Support Bearing | Optional Manual Swivel | Hydraulic Auto-Drop Gate | Dual Hydraulic Reinforced Support |
| Line Speed Range | 0 – 120 m/min | 0 – 80 m/min | 0 – 50 m/min |
| Active EPC Shifting Range | ± 75 mm (Servo Driven) | ± 100 mm (Proportional) | ± 120 mm (High Pressure) |
| Drive Motor Type | AC Inverter Motor + Reducer | Variable Frequency Braking Drive | Dual Hydraulic Motor / High-Torque AC |
China Factory 4.0: Supply Chain Resilience & Quality Sovereignty
Discover why global EPC contractors and premier service centers procure hydraulic uncoilers and coil lines directly from our 40,000 m² Wuxi manufacturing hub.
100% In-House Forging & CNC Machining
We eliminate trading middleman risks. All critical components—including 42CrMo forged mandrel shafts, stress-relieved bed frames, and precision bearing blocks—are heat-treated and machined using in-house 5-axis CNC gantry mills.
Tier-1 Hydraulic & Electrical Architecture
We combine China's high-efficiency structural fabrication with globally serviceable core automation. Our hydraulic power units feature Rexroth/Yuken valves, Siemens PLC micro-controllers, and Schneider electrical safety contactors.
Yangtze Delta Port Advantage
Located in Meicun, Xinwu District, Wuxi, Jianfa enjoys direct high-speed highway connectivity to Shanghai Seaport. We coordinate flat-rack container packing, anti-rust export ocean wrapping, and complete customs clearance documentation seamlessly.
Global Enterprise Procurement: Turnkey Reliability & Compliance
Purchasing capital equipment demands uncompromising alignment with safety regulations, duty cycles, and international engineering certifications.
CE Machine Safety Directives
Fully compliant with EU Machinery Directive 2006/42/EC. Features integrated light-curtain safety barriers, emergency interlock circuits, and mechanical physical safety pins on all swivel arms.
Modular Coil Car Integration
Hydraulic decoilers are engineered to interface directly with V-shaped coil loading cars, featuring pit or floor-track designs with synchronized auto-lift, optical centering, and anti-tip roll saddles.
Overseas Commissioning & Spares
Our multilingual commissioning team provides on-site field assembly, line alignment, and PLC training across 30+ countries, supported by guaranteed 48-hour critical hydraulic valve dispatch.
Turnkey Technical Proposals
Every RFQ is evaluated by licensed mechanical engineers. Buyers receive precise 2D/3D plant footprint layouts, load pressure calculations, and electrical schematics within 24–48 hours.
Frequently Asked Questions: Hydraulic Uncoilers & Line Design
Transparent engineering insights answering core operational, maintenance, and specification challenges for production managers.
Full-Line Metallurgical Machinery Engineered by Wuxi Jianfa
Integrate our precision hydraulic uncoilers with complete turnkey slitting, leveling, and rotary cutting lines for seamless high-volume output.
HR Sheet Uncoiling, Slitting & Recoiling Line
Engineered for high throughput slitting of heavy gauge coil stocks with auto scrap winders and tensioning gates.
Technical Specs & RFQ
HR Uncoiling-Slitting-Recoiling Line
High-torque heavy-duty uncoiler unit matched with rapid knife exchange tooling for tube mill strip prep.
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HR Sheet Uncoiling-Leveling-Shearing Line
Integrated start-stop shearing with hydraulic decoiler auto-centering and magnetic pallet stacking.
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High Strength Multi-Roll Leveling Machine
Intermediate and backup support rolls configured to deliver plate flatness tolerances under ±0.5mm/m².
Technical Specs & RFQ
Industrial Straightening Machine System
Synchronized speed matching prevents surface scuff marks across sensitive cold rolled and aluminum coils.
Technical Specs & RFQ
Hot Rolled Plate Moving Flying Shear
Non-stop continuous shearing technology maximizes line throughput up to 80 meters per minute.
Technical Specs & RFQ
Stainless Steel Cut to Length Production Line
Integrated paper recoiler, hydraulic mandrel expanding wedge, and non-marking automatic drop stacker.
Technical Specs & RFQ
Combined Uncoiling Slitting & CTL Line
Turnkey dual-capability architecture configured for steel service centers handling dynamic order sizes.
Technical Specs & RFQRequest an Engineered Hydraulic Uncoiler Quote
Speak directly with our senior mechanical and electrical design team in Wuxi. We calculate line torque, brake dissipation, and loading car cycle times tailored to your facility.