The 1350S Simple Steel Coil Slitting Machine is designed to slit wide metal coils into multiple narrow strips with high precision and stable performance. It is suitable for processing aluminum sheets, galvanized steel, galvalume steel, and cold-rolled steel with thicknesses ranging from 0.3 mm to 1.5 mm.
As a practical coil slitting machine, this production line integrates coil loading, decoiling, strip guiding, precision slitting, scrap edge recoiling, tension control, and finished coil recoiling. Therefore, manufacturers can efficiently convert wide master coils into narrower strips for downstream metal processing, roll forming, stamping, and other industrial applications.
Unlike a complicated heavy-duty slitting system, the 1350S adopts a relatively simple mechanical configuration while maintaining accurate slitting performance. Moreover, its coordinated feeding, cutting, and recoiling systems help prevent unnecessary material stretching and deformation during production.
Working Process of the 1350S Steel Coil Slitting Line
The 1350S steel coil slitting machine uses high-precision rotary circular blades to cut wide metal sheets longitudinally into several narrow strips. During operation, the feeding, slitting, and recoiling units work together automatically to maintain stable material movement and consistent strip quality.
First, the steel coil is placed on the loading trolley and transported to the cantilever decoiler. After the coil is expanded and positioned, the metal strip is fed into the production line. Next, the guiding device corrects the strip position before it enters the slitting section.
Then, the precision circular blades divide the wide metal sheet into multiple strips according to the required widths. Meanwhile, the scrap edge recoiler collects the trimmed edges into a separate coil.
After slitting, the narrow strips pass through the loop pit and separation devices. Subsequently, the tension station applies adjustable pressure to maintain balanced tension across the strips. Finally, the recoiler winds the finished strips into compact coils, and the unloading trolley transfers them to the discharge area.
Complete Production Workflow
Steel Coil Loading → Coil Car Feeding → Decoiling → Loop Pit → Side Guiding → Head Cutting → Precision Slitting → Scrap Edge Recoiling → Loop Pit → Strip Separation → Tension Control → Finished Coil Recoiling → Coil Unloading
After operators complete the initial strip threading and setup, the machine can run automatically throughout the production process. In addition, it supports preset-length cutting and automatic deceleration when the material reaches the specified length or approaches the coil end.
Main Features of the 1350S Metal Sheet Slitting Machine
Precision Circular Blade Slitting System
The slitting section is the core component of this metal sheet slitting machine. It uses a single slitting head with upper and lower blade shafts driven through a gearbox and universal coupling system.
The machine is equipped with Φ160 mm blade shafts and Φ280 mm circular blades. By changing the spacer combinations, operators can adjust the cutting arrangement to produce different strip widths.
Furthermore, the upper blade shaft can be adjusted synchronously through a motor-driven worm gear mechanism. This design helps control the blade clearance and maintain consistent cutting quality.
Independent Tension Control
Stable tension is essential for producing neatly wound finished coils. Therefore, the 1350S is equipped with a dedicated tension station that applies adjustable pressure to the slit strips.
The tension system helps maintain relatively uniform tightness across multiple strips, reducing problems such as loose winding, coil collapse, and uneven finished coil surfaces.
Automatic Feeding and Recoiling Coordination
The feeding, slitting, and recoiling units are designed to operate in coordination. As a result, the material moves smoothly through the production line without unnecessary stretching during the slitting process.
Additionally, the system features automatic speed reduction and no-material stopping functions. When the preset slitting length is reached or the material runs out, the machine gradually reduces its speed and stops. Operators can then perform coil separation manually or through the configured automatic control sequence.
Convenient Coil Loading and Unloading
The hydraulic loading trolley transports master coils to the decoiler, while the hydraulic unloading trolley removes finished coils from the recoiler.
Both trolleys use heavy-duty welded steel structures and hydraulic lifting systems. Moreover, wireless remote controls make coil handling more convenient and reduce manual handling requirements.
Main Components of the Slitting Machine Production Line
This slitting machine production line consists of several functional units that work together to complete the entire metal coil processing operation.
| No. | Machine Component | Quantity | Function |
|---|---|---|---|
| 1 | Loading Trolley | 1 Set | Transfers master coils to the decoiler. |
| 2 | Cantilever Decoiler | 1 Set | Supports and releases the steel coil. |
| 3 | Side Guiding Device | 1 Set | Positions the metal strip and prevents lateral deviation. |
| 4 | Precision Slitting Machine | 1 Set | Cuts wide metal sheets into narrow strips. |
| 5 | Transition Device and Scrap Edge Recoiler | 1 Set | Guides slit strips and collects scrap edges. |
| 6 | Tension Station | 1 Set | Controls strip tension before recoiling. |
| 7 | Recoiler with Separation Frame | 1 Set | Winds slit strips into finished coils. |
| 8 | Unloading Trolley | 1 Set | Removes finished coils from the recoiler. |
| 9 | Hydraulic System | 2 Sets | Controls hydraulic lifting and clamping operations. |
| 10 | Pneumatic System | 1 Set | Provides pneumatic control for relevant machine functions. |
Technical Specifications of the 1350S Slitting Machinery
The following specifications describe the standard configuration of this slitting machinery. Customization is available according to material properties, production requirements, and local electrical standards.
Raw Material Specifications
| Item | Technical Specifications |
|---|---|
| Material | Aluminum, galvanized steel, galvalume steel, cold-rolled steel |
| Material Thickness | 0.3–1.5 mm |
| Material Width | 300–1300 mm |
| Maximum Coil Outside Diameter | Φ1600 mm |
| Coil Inside Diameter | Φ508 mm |
| Maximum Coil Weight | 10 Tons |
| Maximum Tensile Strength | 440 N/mm² |
| Maximum Yield Strength | 235 N/mm² |
Finished Strip Specifications
| Item | Technical Specifications |
|---|---|
| Finished Coil Inside Diameter | Φ508 mm |
| Maximum Finished Coil Outside Diameter | Φ1600 mm |
| Maximum Finished Coil Weight | 10 Tons |
| Minimum Strip Width | 25 mm |
| Width Tolerance | ≤ ±0.05 mm |
| Scrap Edge Width | 2–8 mm |
| Maximum Burr Height | ≤ 0.05 mm |
| Strip Straightness | ≤ 0.8 mm/m for strip widths ≤ 50 mm; ≤ 0.6 mm/m for strip widths > 50 mm |
Slitting Capacity by Material Thickness
| Material Thickness | Maximum Number of Strips |
|---|---|
| 1.5 mm Cold-Rolled Steel | Up to 5 strips |
| 1.0 mm Cold-Rolled Steel | Up to 8 strips |
| 0.3–0.6 mm Cold-Rolled Steel | Up to 15 strips |
Note: The actual number of strips depends on material thickness, blade arrangement, strip width, and production conditions.
Machine Line Specifications
| Item | Technical Specifications |
|---|---|
| Slitting Speed | 0–30 m/min, variable speed |
| Threading Speed | 0–15 m/min |
| Power Supply | 220V / 60Hz / 3 Phase |
| Installed Power | Approximately 95 kW |
| Operators | 1 Skilled Operator + 2–3 General Workers |
| Installation Area | Approximately 20 m × 8 m |
| Operating Direction | Left to Right, facing the control console |
| Machine Color | Customized according to customer requirements |
Detailed Configuration of Key Machine Units
Hydraulic Coil Loading Trolley
The loading trolley is designed to transport master coils from the storage area to the decoiler. Its heavy-duty welded steel frame provides a maximum loading capacity of 10 tons.
A hydraulic cylinder controls the lifting platform, while a hydraulic motor drives the trolley along parallel guide rails. In addition, the V-shaped coil support helps position the coil securely during transportation.
Single-Side Cantilever Decoiler
The cantilever decoiler supports steel coils with a maximum weight of 10 tons and an outside diameter of Φ1600 mm. It features a hydraulic expansion mandrel with a Φ508 mm standard coil inside diameter.
The expansion system uses hydraulic cylinders and wedge-shaped sliding blocks to expand or contract the mandrel. Meanwhile, the motor-driven transmission system provides powered decoiling, helping maintain stable material feeding.
Side Guiding Device
The side guiding device keeps the incoming metal strip correctly positioned before slitting. It features six vertical guide rollers, with three rollers installed on each side.
Operators can manually adjust the guide roller positions using screw mechanisms to accommodate different material widths. Furthermore, the guide rollers are made of 45# steel and receive hardening and chrome-plating treatments to improve wear resistance.
Precision Slitting Head
The slitting head adopts a single-head configuration with a 22 kW main motor, a gearbox, and universal shaft transmission.
The upper and lower blade shafts have a diameter of Φ160 mm and use Gr15 bearing steel. The circular blades measure Φ280 mm × Φ160 mm × 10 mm (outside diameter × inside diameter × thickness).
Imported NSK bearings support stable shaft rotation. Additionally, the side-opening frame design makes blade replacement and maintenance more convenient.
Strip Separation and Tension Station
After the metal strip passes through the slitting head, the separation frame guides individual strips and prevents overlapping during the tensioning process.
The tension station uses a hydraulic pressure plate system to apply adjustable pressure. Its replaceable felt material helps create stable contact with the strips. Consequently, operators can adjust the tension according to material thickness and winding requirements.
Hydraulic Recoiler
The recoiler is designed to rewind multiple slit strips into finished coils. It features a single-arm hydraulic expansion mandrel, a gear transmission system, and a 37 kW main motor.
The recoiler supports finished coils weighing up to 10 tons, with a maximum outside diameter of Φ1600 mm and a standard inside diameter of Φ508 mm. Furthermore, its hydraulic expansion system and disc brake provide convenient coil handling and reliable operation.
Hydraulic Unloading Trolley
Once the recoiling process is complete, the unloading trolley lifts the finished coils from the recoiler and transfers them to the discharge area.
Its four-guide-column lifting structure provides stable movement, while the hydraulic motor drives the trolley along the guide rails. The maximum loading capacity is 10 tons.
Applications of the Steel Coil Slitting Machine
The 1350S is suitable for manufacturers that need to divide wide metal coils into narrower strips for further processing. Depending on the material and production requirements, it can be configured as an aluminium coil slitting machine or a steel coil processing line.
Typical applications include:
- Galvanized steel coil processing and GI slit coil production.
- Aluminum coil slitting for architectural and industrial applications.
- Galvalume steel strip production.
- Cold-rolled steel strip processing.
- Raw material preparation for metal roll forming machines.
- Metal stamping, fabrication, and sheet metal manufacturing.
For customers searching for a mini slitting machine, the 1350S offers a practical configuration for relatively narrow and medium-width metal coils. However, it is a coil processing line rather than a small tabletop slitter.
Although the machine can process aluminum coils, it is not a standard automatic aluminum foil slitting machine for ultra-thin foil materials. Aluminum foil applications require a specially designed slitting system with suitable tension and winding configurations.
Frequently Asked Questions About the 1350S Slitting Line
1. What materials can the 1350S coil slitting machine process?
The machine is designed for aluminum, galvanized steel, galvalume steel, and cold-rolled steel. Its standard material thickness range is 0.3–1.5 mm, with a maximum material width of 1300 mm.
2. What is the maximum slitting speed?
The maximum designed slitting speed is 30 m/min. The threading speed is adjustable from 0 to 15 m/min. Actual production speed depends on material thickness, strip width, and operating conditions.
3. How many strips can the steel slitting machine produce at one time?
The number of strips depends on material thickness and blade arrangement. As a reference, the machine can produce up to 5 strips at 1.5 mm thickness, 8 strips at 1.0 mm thickness, and 15 strips at 0.3–0.6 mm thickness.
4. What is the minimum strip width and cutting tolerance?
The minimum finished strip width is 25 mm, and the specified width tolerance is ≤ ±0.05 mm. The actual cutting quality also depends on material properties, blade condition, and blade clearance adjustment.
5. Can the slitting line operate automatically?
Yes. After operators complete material threading and initial parameter settings, the feeding, slitting, tensioning, and recoiling processes can operate automatically. The line also supports preset-length deceleration and automatic stopping when the material runs out.
Customized Steel Coil Slitting Machine Solutions
Choosing the right slitting machine depends on your material type, coil dimensions, thickness range, required strip widths, and production capacity.
As a professional roll forming and metal processing machinery manufacturer, Zhongtuo provides customized slitting line solutions for different metal coil processing requirements.
Whether you need a sheet slitting/cutting machine for galvanized steel, aluminum coil processing equipment, or a complete steel slitting machine production line, our engineering team can help configure the appropriate equipment.
Contact Zhongtuo today and share your material specifications, coil weight, required strip widths, and production requirements. We will provide a suitable machine configuration and technical proposal for your project.
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