Dividing big coils to smaller coils machine is a hot seller in the US market
In the metal sheet processing industry chain, wide coils purchased from steel mills often cannot directly meet the width requirements of downstream processes such as stamping, pipe making, and cold bending. How to efficiently and accurately slit these multi-ton coils into multiple narrower coils is a common challenge faced by every metal processing company. The Dividing Big Coils to Smaller Coils Machine—a metal coil slitting production line—is the core equipment for solving this problem. With its high-precision slitting, fully automated control, and stable tension winding capabilities, it helps metal processing companies achieve flexible conversion and value enhancement of their coils.
What is a Dividing big coils to smaller coils machine?
A Dividing big coils to smaller coils machine is an automated production line that longitudinally slits wide metal coils into multiple narrow coils of the required width. Its core function is to longitudinally cut large coils of metal strip using a disc shear, and then rewind them into multiple narrow coils, preparing them for subsequent processing steps.
The standard production process is: feeding → uncoiling → feeding → leveling → slitting → waste edge winding → tension control → winding → unloading. The entire production line is coordinated by a PLC control system, achieving fully automated production from large coil feeding to finished narrow coil output.
This equipment is suitable for processing cold-rolled, hot-rolled carbon steel, silicon steel, tinplate, stainless steel, color-coated sheets, aluminum sheets, and various surface-coated metal coils. It is widely used in steel processing centers, automotive, home appliance, packaging, building materials, and machinery manufacturing industries.
https://youtu.be/HvR_eCE0n9Y
Main components：：
| 1 |
5ton manual decoiler |
1set |
|
| 2 |
Feeding and shearing part |
1set |
|
| 3 |
Recoiler part |
1set |
|
| 4 |
Hydraulic oil station |
1set |
With cooling system |
| 5 |
PLC controlsystem |
1set |
Product Attributes :
1.5 Ton manual decoiler
• Supporting the coils and doing uncoiling. The capacity is 5Tons(max).
• Max coil width: 24inch
• The decoiler is equipped with the brake system
• Inner diameter of coil：450-550mm
2.Cutting and recoiling part
• Material: GI. PPGI
• Thickness of material: 26guage
• Width of material: max 24inch
• Shearing power: 5.5kw
• Rewinder power: 4kw
• Rewinder ID: customized
Core Advantages：
1.High-Precision Slitting, Stable Quality
Slitting accuracy is a core indicator of equipment performance. Modern CNC slitting machines utilize a servo motor-driven gear transmission system, coupled with a high-precision encoder and closed-loop control, achieving micron-level slitting accuracy. Some advanced models control the axial runout of the cutter shaft to ≤0.01mm and the radial runout to ≤0.02mm, enabling high-precision slitting of ultra-thin materials such as 0.1mm thick silicon steel.
During the slitting process, the advanced system integrates real-time tension feedback, online slitting monitoring, and deburring and polishing functions, controlling slitting width error and burrs to the micron level.
2.Fully Automatic PLC Control, Easy Operation
The equipment is equipped with an industrial-grade PLC control system and a touchscreen human-machine interface, enabling intelligent production management. Operators only need to input parameters such as the number of slits, the width of each slit, and the material thickness; the system automatically completes the entire process of blade positioning, tension adjustment, and winding control.
High-end CNC slitting machines use linear encoders to monitor the blade position in real time, achieving closed-loop feedback control to ensure consistent width accuracy for each narrow roll.
3.Precision Tension Control, Neat Rewinding
The rewinding quality directly determines the smoothness of subsequent processing. The equipment adopts an independent tension control system, driven by a magnetic powder clutch or servo motor, to ensure that each narrow roll maintains constant tension during the rewinding process. The rewinding expansion and contraction mechanism is hydraulically driven, and the rewinding mandrel can expand and contract for convenient unwinding.
During the rewinding process, the steel strip is straightened by the material distribution and pressing mechanism and then uniformly conveyed to the rewinding device, ensuring neat rewinding ends and consistent tension.
4. Flexible Adaptability, Complete Specifications
The equipment supports processing various metal coils with thicknesses from 0.3-16mm, and the unwinding width can cover a range of 450-550mm. Common models include the 650, 800, 1000, 1300, 1500, 1600, 1800, and 2200 series, and can be customized according to customer needs.
The blade spacing is achieved by adjusting the blades and shims on the shaft, allowing for quick switching between different slitting widths. A dual slitting head configuration is available as an option, further reducing tool change time.
5.Robust and Durable, Adaptable to Harsh Working Conditions
The cutter shaft is made of forged steel with a heat-treated finish, and works in conjunction with a worm gear synchronous lifting system to achieve micron-level adjustment precision. Some newer units feature an anti-vibration design to reduce the impact of vibration on cutting accuracy. The uncoiler is driven by an AC servo motor, and with a regenerative drive system, energy consumption can be reduced by up to 75%.
Application Areas：
Metal coil slitting production lines are widely used in multiple metal sheet processing industries:
• Steel Processing and Distribution Centers
Slitting large steel coils into narrow coils of the required width for customers is a core processing equipment in steel trading and distribution.
• Cold Bending and Pipe Manufacturing Industry
Providing narrow strip raw materials of suitable width for cold bending machines and welded pipe units, ensuring stable operation of subsequent forming processes.
• Automotive and Home Appliance Manufacturing
Providing metal strips of fixed width for the production of stamped parts, body panels, and home appliance casings.
• Packaging and Building Materials Industry
Used for slitting metal packaging materials, color-coated sheets, and galvanized sheets, meeting the diverse specification needs of the building materials and packaging industries.
Frequently Asked Questions (FAQ)：
Q1: What materials can the slitting production line process?
The equipment is suitable for processing cold-rolled and hot-rolled carbon steel, silicon steel, tinplate, stainless steel, color-coated sheets, aluminum sheets, and various surface-coated metal coils. The processing thickness range is typically 0.3-16mm, depending on the equipment configuration.
Q2: What is the slitting accuracy?
The slitting unit, employing CNC servo control and a precision cutter shaft system, can control the slitting width tolerance within ±0.10mm, with axial runout ≤0.01mm and radial runout ≤0.02mm. Some advanced models can achieve micron-level high-precision slitting for ultra-thin materials such as 0.1mm thick silicon steel.
Q3: Does the equipment support quick tool change?
Yes. The blade spacing is achieved by adjusting the blades and shims on the shaft. Some models can be equipped with a dual slitting head configuration to further reduce tool change time. The CNC slitting machine automatically positions the blade by inputting parameters through the HMI interface, significantly improving changeover efficiency.
Q4: What voltages and power standards does the equipment support?
The equipment can be customized with voltage configurations according to the power grid standards of the customer's country, supporting different voltages such as 220V, 380V, 415V, and 440V, with selectable frequencies of 50Hz or 60Hz, and three-phase power supply. The control system supports multilingual operating interfaces including English and Chinese.
Contact Us：
From large roll slitting in the steel distribution center to raw material preparation for the cold-forming production line, from strip supply for automotive stamping to plate cutting for home appliance manufacturing, the metal coil slitting production line is serving all aspects of the global metal processing industry chain with its high precision, high efficiency and flexible specification adaptation capabilities. A Dividing Big Coils to Smaller Coils Machine with reliable performance and stable accuracy is the core equipment for metal processing companies to improve material utilization, expand product specifications, and enhance market competitiveness. If you would like to obtain equipment solutions and quotations for your specific needs, please feel free to contact us at any time.
