Coil Slitting

Sheet Metal Slitting

Steel Friend, driven by our dedication to delivering top-notch results to our clients promptly, offers innovative and advanced features in the realm of metal processing.

Leveraging our extensive industry expertise, state-of-the-art rotary slitting knives, highly skilled operators, and efficient warehouse logistics, we specialize in providing premium coil slitting services characterized by the highest standards of quality, efficiency, and precision.

Responding to the diverse demands of our customers, we not only cater to long production runs but also possess the capabilities and human resources to maintain flexibility, ensuring swift service even for small quantity requests.

Our versatile production capabilities enable us to produce strips in both aluminum and stainless steel, with the capacity to handle anything from small, single runs to larger multiple coil operations.

Following the slitting process, our dedicated team meticulously recoils the finished material and bands the narrow coils, with a steadfast commitment to delivering all materials in impeccable condition, adhering to the highest standards of handling delicate materials.

In addition to our core services of slitting and blanking, we also house polishing facilities and offer traverse wound coils in-house.

Exploring the Sheet Metal Slitting Process

What is Coil Slitting?

Coil slitting is a specialized process employed to slice a wide coil of metal into multiple narrower coils. Typically used for cutting thin materials lengthwise, this process involves machinery equipped with circular blades.

The process can be outlined in several key steps, with two primary modes of slitting:

  1. Straight Mode Slitting:

    • In straight mode slitting, the material is pulled from the uncoiler through the slitters by the recoiler.
    • Depending on the setup, this process may involve pull-through slitting or driven slitting.
    • Driven slitting involves synchronizing motors to maintain a consistent speed as the material progresses through the line, allowing for the slitting of thinner sheets and ensuring better edge quality for all thicknesses.
  2. Free Loop Mode Slitting:

    • In this mode, a free loop is formed between the slitter and the recoiler.
    • A tension device is often employed in front of the recoiler to ensure proper winding of the coils.
    • This method is particularly suitable for poorly shaped coils and helps ensure the integrity of the finished product.

Stages of Metal Sheet Slitting

  1. Storage Station:

    • This station serves as the storage point for the raw material and workpieces, typically consisting of a large roll of metal sheet.
  2. Transport Trolley:

    • A trolley is utilized to transport the workpiece from the storage station to the uncoiler.
    • The uncoiler unwinds the coil as it feeds the metal sheet into the slitting machine.
  3. Slitter:

    • The material is fed into the slitter from the uncoiler, where it is cut into several narrow sheets according to the specifications of the order.
  4. Recoiler:

    • The final stage involves the recoiler, which winds the individual strips of material neatly into coils.
    • In some instances, a tension device may be employed to ensure the coils are wound securely and uniformly.

Enhancements in Quality

In some cases, additional equipment such as a temper mill or a leveller may be incorporated into the slitting line. These additions serve to rectify defects in the incoming coil, such as buckles, thickness variations, and twists, thereby enhancing the quality of the slitted strips.

Steel Friend's commitment to excellence in metal processing is evident in our comprehensive approach to coil slitting. Through a combination of cutting-edge technology, skilled craftsmanship, and meticulous attention to detail, we consistently deliver superior results to our clients, meeting their diverse needs with precision and efficiency.


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