In modern metal processing industries, efficiency and precision directly affect production quality and operating costs. A slitting line machine is designed to convert wide metal coils into narrower strips with consistent width and smooth edges. Manufacturers in industries such as automotive, construction, home appliances, electrical equipment, and furniture production rely on these systems to improve productivity and reduce material waste.
This advanced metal slitting line combines decoiling, leveling, slitting, cutting, tension control, and recoiling into one integrated production system. With automatic control and stable performance, the line can process carbon steel, GI, and PPGI materials efficiently while maintaining excellent cutting accuracy.
How the Slitting Line Works
The working process of a coil slitting line is straightforward yet highly efficient. First, the metal coil is loaded onto the decoiler, where the coil is expanded and held securely. The material then moves into the leveling section, which removes coil set and surface deformation to create a flat sheet.
After leveling, the strip enters the slitting section. Multiple slitting blades divide the metal into narrower strips according to the required dimensions. At the same time, the scrap winding device collects the edge waste neatly to keep the production area clean.
Next, the damping device applies stable tension to ensure tidy recoiling. Finally, the recoiler rewinds the finished strips into compact coils for storage or further processing. Additionally, the system supports a dedicated “Cut-to-Length Only” mode, allowing operators to produce flat sheets without engaging the slitting and recoiling sections.
Main Technical Specifications
| Item | Specification |
|---|---|
| Decoiler Capacity | 6 Tons |
| Max Coil Width | 1250 mm |
| Coil Inner Diameter | 450–610 mm |
| Material Thickness | 0.3–0.8 mm |
| Processing Speed | 0–20 m/min |
| Shaft Diameter | 50 mm solid shaft |
| Slitting Blades | 12 pairs |
| Blade Material | Cr12Mov steel |
| Drive Motor Power | 5.5 kW |
| Hydraulic Motor Power | 5.5 kW |
| Scrap Winder Motor | 2 kW × 2 |
| Supported Materials | Carbon Steel, GI, PPGI |
| Length Tolerance | 3m ±1.5 mm |
| Control System | Delta PLC with touch screen |
| Operating Language | Chinese, English, Lithuanian |
Key Features of the Metal Slitting Line
This steel coil slitting machine delivers stable and accurate production through a combination of intelligent design and durable components.
The 6-ton electric decoiler uses automatic motor transmission and includes a mechanical press arm that prevents the coil from loosening or bending during operation. As a result, the feeding process remains smooth and stable even during high-speed production.
Carrying capacity: 6 T
Max coil width: 1250mm
Coil inner diameter: 450-610mm
Manual expanding, electric control
Automatic motor transmission
Transmission motor power: 4 kw
There is also a mechanical press arm to keep the coil from bending during use.
The leveling unit contains 17 heat-treated rollers with hard chrome coating. These rollers improve sheet flatness and protect the material surface. Meanwhile, the chain-and-gear transmission system provides reliable power transmission and long-term durability.
- The main shaft of slitting blades can be lifted (disengaged) when only need the cross-cutting function without slitting the sheet.
- With foot pedal for a Start/Pause function and a 5Mlong cable
The entry guide to have vertical rollers (wheels) on the sides, as shown in the reference photo
The slitting section adopts high-strength Cr12Mov steel blades, which offer excellent wear resistance and maintain sharp cutting edges for extended operation. Operators can also disengage the slitting shaft through the PLC system whenever only cross-cutting is required. This flexible design improves production efficiency and reduces unnecessary machine wear.
Furthermore, the line includes a foot pedal with a 5-meter cable for convenient start and pause control. Vertical guide rollers at the material entry help maintain accurate feeding alignment and improve slitting precision.
Intelligent Recoiling and Tension Control
A stable recoiling system is essential for producing neat finished coils. This automatic slitting line uses a hydraulic recoiler with a loading car to rewind finished strips efficiently. The recoiler supports adjustable winding tension and speed, ensuring clean and compact finished coils.
The damping system creates post tension for thin materials and helps separate the strips before recoiling. Felt pads protect the strip surface during operation, while the manual tension control system allows operators to adjust the winding condition according to different material types.
Additionally, the scrap winder system collects edge scrap automatically. The guiding mechanism keeps narrow edge strips organized, especially for strips smaller than 20 mm.
Advanced PLC Control System
The entire production line operates through a reliable Delta PLC control system. The touch screen interface allows operators to adjust parameters quickly and monitor machine performance in real time.
The system supports:
- Automatic length measurement
- Automatic quantity counting
- Cutting length and speed calibration
- Engineering password protection
- Chinese, English, and Lithuanian operating languages
Moreover, the machine comes with a complete electrical wiring diagram and English user manual, making installation and maintenance easier for overseas customers.
Applications of Slitting Line Machines
Because of their flexibility and precision, coil slitting lines are widely used across many manufacturing sectors.
| Industry | Application |
|---|---|
| Automotive Industry | Car body parts and structural components |
| Electrical Industry | Cable strips and transformer materials |
| Home Appliance Industry | Refrigerator and washing machine panels |
| Construction Industry | Roofing sheets and wall cladding materials |
| Packaging Industry | Metal packaging materials |
| Furniture Industry | Decorative strips and metal components |
Manufacturers choose metal slitting machines because they improve production speed, reduce labor costs, and minimize material waste. In addition, automated operation helps maintain consistent product quality throughout the entire production process.
Why Choose This Slitting Line
This high-speed slitting line combines precision engineering, flexible production modes, and intelligent automation in one compact system. It can handle different coil materials efficiently while maintaining stable cutting quality and accurate recoiling performance.
With durable components, user-friendly PLC control, and customizable production capability, this machine provides an ideal solution for companies looking to increase production efficiency and improve finished product quality in modern metal processing operations.
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