Engineered in our 40,000 m² Wuxi manufacturing hub to handle ASTM, JIS, and Indonesian National Standard (SNI) coils with continuous burr-free rotary precision.
Engineered for cold-rolled and hot-rolled coils up to 1600mm width, dynamic hydraulic arbor quick-change system, and dual scrap ballers.
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Full European CE standard compliance, hydraulic leveling cassettes, high-speed stop-to-cut precision with digital encoder positioning.
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High-throughput synchronized rotary flying shear system reaching continuous speeds of up to 80m/min without strip surface marking.
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Reinforced main base frame built for heavy hot-rolled strip down to narrow bands, serving Indonesian pipe mills, C-purlin, and structural fabricators.
Explore Mill LineUnder the national "Making Indonesia 4.0" masterplan and the massive infrastructure rollout for Ibu Kota Nusantara (IKN), Indonesian coil processing demand is transforming from low-speed legacy slitting to high-accuracy, automated processing.
The explosion of nickel pig iron (NPI) processing and stainless steel production in Sulawesi (Indonesia Morowali Industrial Park - IMIP and Weda Bay) has positioned Indonesia as a primary stainless raw material powerhouse. Converting large 300-series and 400-series hot and cold-rolled stainless master coils into burr-free strips requires heavy-rigidity slitting heads that prevent work-hardening and edge burr propagation.
Wuxi Jianfa provides heavy-duty stainless slitting lines featuring tungsten-carbide inserted tooling, hydraulically synchronized arbor bearings, and paper interleave recoil units that safeguard critical mirror (#4/BA) finish requirements.
The automotive belt spanning Cikarang, Karawang, and Bekasi hosts premier global automotive manufacturers and stamping vendors. Modern automotive chassis, brackets, and motor laminations mandate the processing of advanced high-strength steels (AHSS with yield strengths exceeding 780–980 MPa) and non-oriented electrical steel (silicon steel).
Standard mechanical slitting machines struggle with knife deflection and severe edge camber when slitting high-yield materials. Jianfa solves this through pre-stressed four-column housing slitting structures, anti-camber tension pads, and non-marking polyurethane brake rollers tailored for precision Japanese-standard automotive spec blanks.
Indonesia's national drive for infrastructure and building materials—amplified by the development of the new capital Nusantara—has driven skyrocketing demand for GI/GL (Galvanized and Galvalume / Zincalume) thin gauge coils used in lightweight steel roof trusses (baja ringan) and C/Z purlin profiling.
High-speed slitting lines running at 150-180 m/min with multi-strand recoil tensioning (up to 30 slits per pass) are mandatory to sustain profit margins. Jianfa’s dual slitter-head quick-change systems enable Indonesian factory operators to execute knife setup swaps in under 12 minutes, eliminating costly operational downtime.
From Krakatau Steel hot-rolled pickled and oiled (HRPO) coils to imported JIS G3141 cold-rolled coils, our machinery accommodates fluctuating tensile values, varying thicknesses, and complex slitting geometry.
| Performance Specification | Light-Gauge Precision Slitter | Medium-Gauge Versatile Slitter | Heavy-Gauge Industrial Slitter |
|---|---|---|---|
| Processed Coil Material | GI, GL, CR, Tinplate, Copper, Silicon Steel | CR, HRPO, Galvanized, Stainless 304/316 | Hot-Rolled Carbon (SS400, Q235B/Q355B), Corten |
| Thickness Processing Range | 0.15 mm – 1.50 mm | 0.80 mm – 4.50 mm | 3.00 mm – 16.00 mm |
| Usable Coil Width Capacity | 600 mm – 1300 mm | 800 mm – 1800 mm | 1000 mm – 2200 mm |
| Maximum Coil Weight | Up to 15,000 kg | Up to 25,000 kg | Up to 35,000 kg |
| Maximum Slitting Speed | 180 m/min (Inverter / Servo driven) | 120 m/min (Dynamic torque control) | 60 – 80 m/min (Heavy torque geared) |
| Slitting Head Configuration | Twin Arbors • Ultra-precision (SKD-11/LD) | Pre-stressed Dual Housing • Quick Change | Hydraulic Clamp Four-Column Heavy Cast Arbors |
| Slitting Width Tolerance | ±0.02 mm (Burr height ≤ 3% thickness) | ±0.05 mm | ±0.10 mm |
| Tensioning & Recoil System | Belt bridle • Pneumatic wool felt pad | Combined roller brake + tension separator | Dual cylinder heavy drag pad + loop pit tailing |
| Control Architecture | Siemens S7-1500 PLC • Profinet • Remote IoT | Siemens / Mitsubishi Dual PLC System | Siemens Industrial Automation with Scada Support |
Modern metallurgical processing centers require more than brute mechanical force. Global supply chain volatile trends necessitate intelligent sensing, real-time energy telemetry, and automated arbor calibration.
Legacy knife setting depends on the individual skill of operators, introducing trial-and-error scrap waste. Wuxi Jianfa incorporates intelligent tooling calculation algorithms right into the HMI terminal. Operators input strip material, tensile strength, thickness, and required cut widths; the system calculates the exact knife overlap (penetration depth), side clearances, and polyurethane stripper ring hardness combinations within seconds.
In large-scale slitting, uncoilers and tension brakes continuously produce braking resistance, typically dissipated as heat in resistance grids. Our lines deploy regenerative variable frequency drives (VFDs) that recapture braking energy from the decoiler and pump it directly into the recoiler motor, yielding 18% to 26% overall plant electrical savings. Proportional servo hydraulics ensure microscopic clearance consistency during heavy-gauge shear strokes.
For manufacturing plants situated in Medan, Surabaya, or outer island industrial zones like Halmahera, immediate on-site factory support can be logistically challenging. Jianfa lines integrate VPN secure remote gateway modules. Our engineering team in Wuxi can diagnose PLC program faults, servo tracking jitter, or encoder mismatches in real time, guaranteeing Indonesian service centers 99.2% line availability.
Deploying precision industrial machinery in equatorial Southeast Asia presents unique challenges: high relative humidity, tropical heat, voltage fluctuations, and strict regulatory standards like SNI.
Indonesia's coastal and equatorial climate frequently exceeds 85% relative humidity and 35°C ambient temperature. Standard industrial cabinets suffer condensation failures, and bare steel components corrode quickly during downtime.
Investing in an imported production line requires guaranteed uptime from day one, smooth logistics clearance at Tanjung Priok (Jakarta) or Tanjung Perak (Surabaya), and full training of local technicians (Tenaga Kerja Indonesia).
Provide your required coil specifications (strip width, thickness range, yield strength, coil weight), and our chief technical director will engineer a complete 3D layout and line proposal within 24 hours.
Everything procurement directors and plant managers need to know about coil slitting machinery selection, knife arbor stability, and post-installation service.
Burr generation is caused by arbor deflection, improper knife clearance, or bearing vibration. Jianfa slitting lines eliminate this through high-tensile 40Cr forged arbors quenched, tempered, and ground to runout tolerances within ≤0.005mm. Coupled with ultra-rigid pre-stressed four-column housing structures and hydraulic clamp locking, the arbor will not deflect even under maximum tensile cutting loads, holding burr height below 3% of strip thickness.
While a wide-range line is possible, physics dictates different shearing kinematics. Thin sheets require high line speeds, delicate tension regulation (wool felt / belt bridle), and high-precision knife clearances. Thick plates require slow speeds, high gear-box torque, and heavy-duty roller braking pads. Jianfa engineers dual-purpose combo lines equipped with dual interchangeable slitting cassettes and two-speed heavy/light recoiler transmissions that successfully bridge the gap.
Due to coil crown (natural metallurgical thickness difference between the coil center and strip edges), outer narrow strips recoil looser than center strips. Jianfa slitting lines deploy a deep looping pit paired with an advanced multi-zone hydraulic tension station (pneumatic belt bridle or segmented tension discs). This ensures every individual strip recoils into a tight, telescoping-free, perfectly aligned coil.
Standard fabrication and in-house dry-run pre-assembly at our Wuxi factory takes approximately 90 to 120 days depending on automation level. Sea freight shipping to Tanjung Priok takes 12–15 days. Upon foundation preparation by your civil team according to our foundation blueprints, our dispatch engineering team completes mechanical positioning, hydraulic line testing, electrical wiring, and full test slitting within 20 to 30 days.
Browse our proven product portfolio installed across 30+ countries, offering heavy leveling, high-precision slitting, and flying shear technologies for metal processors.
Removes high coil-set and edge wave in high-yield-strength carbon and structural alloy steel coils.
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High-rigidity roll cluster straightening delivering perfectly flat, stress-relieved plates ready for laser cutting.
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Hydraulically synchronized traveling flying shear cutting medium and heavy plates without stopping the line.
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Specially treated rolls with paper uncoiler and film applicator protecting 2B, BA, and No.4 stainless finishes.
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Integrated space-saving layout capable of slitting strips and cutting flat rectangular sheets on one machine.
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High-precision rotary shear dividing master hot-rolled coils into narrow strips with tight individual recoil tension.
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High-capacity coil line engineered specifically for high-frequency ERW pipe mills and heavy roll forming lines.
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Uncoils, levels, measures, shears, and neatly palletizes heavy-gauge sheets in a high-speed continuous workflow.
View Machine DetailsSince the early 1980s, Wuxi Jianfa Machine-Building Co., Ltd. has developed into a national key developing enterprise in China’s metallurgical machinery sector. Operating from our self-owned 40,000 m² heavy-machinery workshop in Wuxi, Jiangsu, we bridge world-class European engineering standards with competitive factory-direct pricing for Indonesian steel centers.
Gantry milling, boring, induction hardening, and arbor cylindrical grinding carried out under one roof to assure microscopic tolerances.
Indonesian clients are invited to inspect full mechanical and electrical coil test runs at our Wuxi works prior to ocean container loading.
Dedicated international after-sales division providing rapid spare-part shipping, on-site technician deployment, and remote engineering diagnostics.
