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Metal Cut To Length Combined Slitting Lines & Machinery
The metal cut to length combined slitting line is an integrated coil processing system designed to uncoil, edge-trim, multi-strip slit, precision flatten, and cross-cut sheet metal coils into custom-sized rectangular blanks or recoiled strip coils in a single continuous automated operation. Combining the full versatility of a high-precision rotary slitter with a 4-Hi/6-Hi roller leveler and high-speed flying shear, this combined machine optimizes shop floor space, slashes coil handling time, and maximizes raw material yield across steel service centers, automotive stamping facilities, and building panel manufacturing plants.
Simple Portable Metal Steel Sheet Coil Leveling Shearing Cut- 20 M/Min+ZTRFM-C11+7.5kw
$12,000.00
MOQ: 1
Metal Strip Coil Steel Coil Length Cutting Machine Galvanized- ZHONGTUO-CUT TO LENGTH
$15,500.00
MOQ: 1
Thin Coil Combined Cut-to-Length and Slitting Machine- 15–25 m/min
$12,999.00
MOQ: 1
About Metal Cut To Length Combined Slitting Lines & Machinery
Combined slitting and cut-to-length lines represent the pinnacle of flexibility and space efficiency in industrial coil processing. By unifying slitting and shearing functionalities within a single coordinated mechanical footprint, manufacturers eliminate the capital expense and logistical overhead of operating separate slitter and blanking lines.
A typical combined processing line incorporates a heavy-duty hydraulic decoiler with a loading coil car, precision hydraulic crop shear, 4-Hi or 6-Hi precision roller leveler equipped with intermediate backup rolls (eliminating internal coil stress, edge wave, and center buckle), a quick-change rotary slitter head with carbide-tipped circular knives, loop accumulator pit, servo-driven precision feeder, high-speed eccentric flying or stationary shear, and an automated magnetic/air-cushioned drop stacker.
Our combined lines process hot rolled, cold rolled, galvanized, and pre-painted steel, as well as stainless steel and aluminum coils from 0.3 mm up to 6.0 mm thickness and widths up to 2000 mm. Operating under advanced Siemens or Mitsubishi PLC automation with intuitive HMI touchscreens, lines achieve cutting speeds up to 60–100 m/min with length cutting tolerances within ±0.2 mm and diagonal squareness within ±0.3 mm, satisfying the most stringent automotive and electrical manufacturing tolerances.
Applications
Steel Service Center High-Speed Multi-Blanking & Coil Slitting
High-volume steel coil distribution centers slitting master coils into customized width strips while simultaneously shearing leveled flat sheets for regional customers. Applications: Commercial metal service centers, coil warehousing hubs, and toll processing facilities. Features: Dual slitter head quick-change mechanism, automated sheet drop stacking, and high-speed 80 m/min throughput.
Automotive High-Tensile Sheet Precision 6-Hi Leveling & Blank Shearing
Heavy-duty 6-Hi leveling and slitting line processing high-strength structural steel coils into precision laser-welded blanks for vehicle chassis components. Applications: Automotive Tier-1 blanking facilities, commercial vehicle frame manufacturing, and stamping press lines. Features: Zero surface scratch protection, precise internal residual stress relief, and tight diagonal squareness within ±0.2 mm.
Electrical Transformer Silicon Steel Grain-Oriented Core Cutting
Ultra-precise slitting and cut-to-length line shearing electrical silicon steel (CRGO/CRNGO) coils into step-lap transformer core mitered laminations. Applications: Power transformer core assembly plants, electrical motor stator manufacturing, and inductor fabrication. Features: Tungsten carbide circular slitter knives, micro-burr control under 0.01 mm, and high-speed servo angle shearing.
Home Appliance Stainless & Pre-Painted Mirror Finish Blanking
Surface-critical leveling and blanking line equipped with protective PVC film laminators processing prepainted and bright annealed stainless steel into refrigerator door blanks. Applications: White goods assembly lines, kitchen range hood manufacturing, and cleanroom wall panel factories. Features: Non-marking rubber-coated leveler backup rolls, static-free film application, and gentle air-float stacking table.
Heavy-Gauge Structural Steel Plate Edge Trimming, Slitting & Recoiling
Robust 6.0 mm heavy-duty combined slitting line uncoiling thick hot-rolled coils, trimming mill edges, and slitting wide plates for structural steel fabrication. Applications: Heavy machinery manufacturing plants, steel pipe and tube weld mills, and highway bridge construction yards. Features: High-torque dual-drive hydraulic recoiler, robust hydraulic scrap choppers, and rugged heavy-gauge strip tensioning.
Technical Overview
| Parameter | Information |
|---|---|
| Coil Material Capability | CR, HR, Galvanized (GI), Galvalume (GL), PPGI, Stainless Steel, Aluminum |
| Strip Thickness Range | 0.3 mm – 3.0 mm (Light gauge) / 1.0 mm – 6.0 mm (Heavy gauge) |
| Strip Width Capacity | 600 mm – 2000 mm |
| Maximum Coil Weight | 15 – 30 Metric Tons with hydraulic lifting coil car |
| Line Processing Speed | Up to 60 – 100 m/min continuous variable speed |
| Leveler Configuration | 19 or 21-roll 6-Hi precision cassette leveler with motorized backup roll bending |
| Slitter Head Configuration | Dual motorized interchangeable slitter heads with quick hydraulic clamping |
| Cut-to-Length Tolerance | Length tolerance ±0.2 mm / 2000 mm; Diagonal squareness ±0.3 mm |
| Shearing Mechanism | High-speed hydraulic flying shear or servo-crank continuous stop-and-go shear |
| Automation & Control System | Siemens S7-1500 PLC, Simotics servo drives, 15-inch HMI touchscreen interface |
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FAQ
What is the primary advantage of a combined slitting and cut-to-length line over two separate lines?
A combined line requires up to 40% less plant floor footprint, lowers initial capital equipment expenditure, reduces intermediate coil transfer and storage labor, and allows operators to produce slit strips and custom sheet blanks from master coils in one seamless pass.
What coil thicknesses and widths can this combined line process?
Standard combined lines accommodate coil thicknesses from 0.3 mm to 3.0 mm (light gauge) or 1.0 mm to 6.0 mm (medium-heavy gauge), with coil widths ranging from 600 mm up to 2000 mm and coil weights up to 30 metric tons.
How does the precision roller leveler eliminate coil shape defects?
The integrated 4-Hi or 6-Hi precision leveler utilizes multiple small-diameter work rolls supported by motorized adjustable backup roll banks. By subjecting the strip to repeated alternating plastic-elastic bending, it eliminates coil set, crossbow, edge wave, and center buckle.
What cutting accuracy is achievable on high-speed cut-to-length shearing?
Servo-driven feeding combined with high-speed hydraulic or mechanical flying shears achieves sheet length tolerances within ±0.2 mm (at 2000 mm sheet length) and diagonal diagonal squareness within ±0.3 mm.
How quickly can tooling changeovers be performed on the rotary slitter head?
Our lines feature dual-interchangeable slitter heads mounted on a motorized traverse car. While one head is slitting production coils, the second head is pre-tooled offline, reducing tooling changeover downtime to under 5–10 minutes.
Can the line produce recoiled slit strips and sheared flat sheets simultaneously?
Yes, depending on production modes, the line can run in slitting-only mode (recoiling all slit strands on the hydraulic recoiler), cut-to-length only mode (blanking full-width sheets), or combined mode (slitting edge strands while cross-cutting center strips into blanks).
What safety standards and remote support capabilities are included?
All lines are CE-certified with safety light curtains, perimeter fencing, emergency pull-cords, and IoT industrial routers for remote PLC program diagnostics and predictive maintenance support.