Engineered to conform with Japanese Industrial Standards (JIS G 3302 / JIS G 3141) with high-dynamic servo response, ultra-flat hydraulic leveling, and surface-sensitive protection.
Equipped with 6-high multi-roller levelers, precision encoder feedback, and high-dynamic start-stop shears for automotive blanks and white goods.
Engineered for hot-rolled coils up to 25mm thickness with individual roll hydraulic bending control to eliminate high-tensile structural residual stress.
Dual-head turret slitter featuring automated hydraulic tooling clamping, sub-micron arbor runout, and high-tension recoiling for non-grain oriented electrical steel.
Continuous dynamic rack-and-pinion synchronization cutting at 120 cuts/min without strip deceleration, eliminating surface marking on mirror-finish stainless and aluminum.
An in-depth evaluation of steel coil transformation, advanced manufacturing clusters, and technical procurement realities across the Keihin and Keiyo Industrial Zones.
The Greater Tokyo Metropolitan Area, spanning Tokyo, Kanagawa (Kawasaki, Yokohama), and Chiba, houses Japan's highest concentration of precision metal stamping, robotics, and maritime logistics. Land in Tokyo Bay carries premium rental values; thus, coil processing facilities require high-density, compact line footprints that deliver maximum throughput per square meter of factory floor space.
Japanese procurement demands exact compliance with JIS G 3141 (cold-reduced carbon steel), JIS G 3302 (hot-dip galvanized steel), and JIS G 4305 (cold-rolled stainless steel). Length tolerance must reliably hit ±0.15mm at continuous speeds exceeding 80m/min, while diagonal squaring error is capped below 0.3mm across 2,000mm sheets, precluding conventional stop-and-go mechanical shears.
The Tokyo automotive tier-1 corridor is aggressively lightweighting chassis and structural architectures using Advanced High-Strength Steels (AHSS up to 1180 MPa) and ultra-thin high-grade silicon steel (0.20mm - 0.35mm) for electric traction motors. Standard leveling machines lack the back-up roll stiffness and torque density necessary to eliminate springback in these exotic alloys.
The paradigm of coil processing has shifted from brute mechanical deformation to closed-loop digital precision. Modern cut-to-length lines integrated for demanding industrial markets feature real-time flatness sensing, intelligent back-up roll crowning, and synchronous electronic cam-driven flying shears.
To eliminate internal coil set, cross-bow, and edge wave in AHSS strips, plastic deformation penetration must exceed 75% in the entry rollers, decaying progressively toward elastic springback elimination at the exit:
Jianfa's Leveling Controllers dynamically calculate inter-roll hydraulic wedge stroke in real-time, counteracting housing deflection through segmented multi-point back-up bearing columns.
How international metal centers and Tokyo industrial buyers mitigate astronomical domestic machinery lead times and inflated CapEx through Wuxi Jianfa's vertically integrated engineering complex.
Traditional domestic machinery manufacturers across Japan and Western Europe quote 14 to 22 months lead time for high-specification CTL lines. Wuxi Jianfa leverages a 40,000m² manufacturing base with in-house heavy CNC floor-type boring mills, tempering furnaces, and dedicated pre-assembly bays, delivering fully tested lines within 4 to 6 months.
Quality reliability rests on non-outsourced production. Every leveler work roll is forged from 60CrMoV / GCr15 vacuum-degassed alloy, quenched through intermediate-frequency induction to HRC 60-62, ground to micro-finish Ra ≤ 0.20μm, and hard-chrome plated for continuous zero-defect operation.
Our automation frameworks natively interface with world-class components: Siemens S7-1500 and Mitsubishi Electric iQ-R PLCs, Yaskawa / Delta servo drives, Rexroth hydraulic valving, and Schneider electrical switchgear, ensuring Tokyo and worldwide operators experience seamless local maintenance and spare parts availability.
Technical evaluation for service center engineers planning equipment modernization in Kanto or international industrial clusters.
| Technical Parameter | Standard Cut to Length (Start-Stop) | Synchronous Flying Shear Line | Continuous Slitting & Recoiling |
|---|---|---|---|
| Primary Industrial Function | Sheet blanking & heavy structural uncoiling | High-volume precision sheet processing | Multi-strip slicing for roll formers & stampers |
| Line Speed Range | 0 – 50 m/min (limited by shear cycle) | 0 – 120 m/min (continuous line flow) | 0 – 250 m/min (high-speed recoiling) |
| Length Accuracy | ±0.30 mm per 2000 mm sheet | ±0.15 mm per 2000 mm sheet | N/A (Width accuracy ±0.03 mm) |
| Surface Protection Level | Standard (Loop pit contact possible) | Superior (Zero slip, no looping pit) | High-Tension belt bridle tensioning |
| Typical Tokyo Application | Heavy plate, structural beams, warehousing | Automotive body panels, EV electronics | Stator cores, transformer lamination |
Demonstrated performance across complex metallurgical environments requiring zero-defect tolerances and high continuous uptime.
Supplying tailor-sheared blanks for body-in-white (BIW) stampers. Processing cold-rolled zinc-coated coil with zero micro-cracking of galvannealed coating, delivering burr-free perpendicular cuts that preserve downstream progressive die longevity.
Processing SUS304 / SUS316 bright-annealed stainless sheets up to 2.5mm for semiconductor cleanrooms and high-rise curtain walls. Equipped with automated protective film laminators and anti-static conveyor systems.
Ultra-thin non-oriented electrical steel slitting and leveling lines with specialized carbide rotary knives and servo loop tension governors, mitigating hysteresis losses by preserving strip core edge metallurgy.
Explore our primary machinery portfolio, built to ISO9001 and CE directives with factory-direct support, field commissioning, and turnkey supply chains.
4-High & 6-High configurations delivering severe residual stress relief for high-yield steel coils up to 980 MPa.
Micrometer-adjustable precision leveling rolls designed for scratch-free calibration of aluminum and copper sheet stock.
Synchronous traveling shear frame cuts plates up to 20mm thickness on the fly without halting line momentum.
Engineered for cleanroom grade stainless sheet fabrication with intermediate film applicator and vacuum stacking.
Integrated slitting knives and flying shear on a unified bed, maximizing production capability in tight plant layouts.
Heavy-duty rotary slitting arbors with automated shimless tooling setup for clean, burr-free structural strip coils.
Processes 30-ton hot-rolled master coils for pipe mills, featuring rapid roll changeover carts and scrap winders.
Continuous automated workflow from coil loading car to neatly banded sheet pallets with integrated weight sorting.
Authoritative guidance on metrology, coil mechanics, maintenance regimens, and international deployment.
Conventional cut to length systems feed the strip through pinch rolls into a static shear. To make each cut, the strip must come to a dead stop. This start-stop deceleration produces micro-slippage between the strip and still-rotating rolls, leaving friction marks. A flying shear synchronizes its cutting head carriage with the uninterrupted speed of the strip via high-dynamic servo electronic gearing. The blades engage, cut, and retract while moving at the exact same velocity as the strip, completely eliminating relative friction and loop contact.
A 4-High leveler features work rolls supported directly by segmented back-up bearing flights. While robust for hot-rolled structural steel, the contact between back-up rolls and work rolls can cause localized wear stripes that transfer to exposed metal surfaces. A 6-High leveler inserts a full complement of intermediate rolls between the work rolls and back-up rolls. These intermediate rolls transmit hydraulic crowning force smoothly, preventing roll marks, which is critical for JIS automotive exposed steel, polished brass, and mirror stainless sheets.
Yes. Processing high-yield materials requires smaller roll diameters positioned at tighter center pitches, supported by heavy-section cast-steel housings and high-torque planetary gearboxes. Our high-strength leveling lines are engineered with work roll materials forged from premium 60CrMoV, deep induction hardened to HRC 60-62, with multi-column hydraulic back-up supports that generate up to 25% higher plastic strain penetration to permanently counteract high-tensile springback.
Each line undergoes complete mechanical pre-assembly and full electrical dry-cycle testing at our Wuxi facility prior to export. We deploy experienced mechanical and automation engineers to oversee civil anchor verification, mechanical leveling, hydraulic flushing, and trial cuts at the client's plant. We also offer industrial VPN gateway modules in the main PLC cabinet, enabling our engineering headquarters to execute remote diagnostic telemetry and firmware adjustments in real time worldwide.
Whether you require a high-speed servo flying shear line for precision blanks or a heavy-duty leveling line capable of handling 25mm structural plate, Wuxi Jianfa provides factory-direct engineering proposals tailored to your factory layout, yield targets, and budget parameters.
