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China Coil Slitting Line Suppliers - High-Speed Slitting Machine Factory for 0.25 to 20 mm Thickness

The slitting line offered by our factory in China is designed to meet diverse needs, featuring three distinct grades based on operating speed: high, medium, and low. This versatile equipment accommodates material thickness from 0.25 mm to 20 mm and widths between 200 mm and 3,000 mm. Our high-speed disc slitting line impressively operates at speeds up to 120 m/minute, making it an ideal choice for efficient production. As a trusted supplier in the industry, we ensure that our slitting lines deliver top performance and quality to our clients

    Product Introduction

    The slitting machine is a key piece of equipment in industry for cutting wide metal or non-metallic coil materials into several narrow strips of the required width along the length direction. Its core working principle is to continuously roll-cut the material through the rotation of the upper and lower circular disc knife shafts.

    The following is a comprehensive introduction to the core features of the slitting and shearing machine:

    Core Structure & Unit Composition

    The core structure mainly consists of upper and lower knife shafts, fixed/movable frames, and a synchronous lifting mechanism. The knife shafts and frames undergo precise processing (such as turning, high-frequency treatment, grinding, and chrome plating, etc.) to ensure the rigidity and accuracy of the equipment.

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    This series of production line is applicable to coils of various specifications. It is used for slitting the coil into required width for the use of punch line through the procedure of uncoiling, pre-leveling, cropping, slitting and recoiling. It has advantages such as proper layout, easy operation, highly automated and high production efficiency.

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    This line is adaptable to process cold-rolled and hot-rolled coils, silicon steel coils, stainless coils, colored coils, aluminum coils, and all sorts of plated and coated coils, and it widely applies to many industries like automobiles, containers, household appliances, food packing, construction materials, etc.

    This line consists of loading cart, uncoiler, slitter, scrap winder, cropping shear, tension controller and coil recoiler, etc. Loop bridge, pinch and deviation corrector are equipped between each machine. This automatic coil processing line is a integration of mechanical, electrical, hydraulic and pneumatic technology.

    Cr Coil Slitting Line (1)Cr Coil Slitting Line (1)Cr Coil Slitting Line (2)

    Main Technical Parameter

    Name \ Model 1.2×1250 2×1250 3×1600 6×1500
    Coil Thickness (mm) 0.2–1.2 0.5–3.2 0.3–3.0 1–6
    Coil Width (mm) 400–1250 400–1250 500–1600 500–1500
    Coil Weight (T) 10T 10T 16T 15T
    Coil I.D. (mm) φ508 φ508 φ508 φ508
    Recoiling I.D. (mm) φ508 φ508 φ508 φ508
    Main Shaft Dia. (mm) φ160 φ180 φ180 φ240
    Slitting Strips ≤25 ≤15 ≤25 ≤20
    Line Speed (m/min) 80–120 0–100 90–120 0–60
    Total Power ≤90KW ≤100KW ≤180KW ≤245KW

    Frequently Asked Questions

    What materials can the CR coil slitting line process?
    The CR coil slitting line is designed to process a wide range of coil materials, including cold-rolled and hot-rolled coils, silicon steel coils, stainless steel coils, colored coils, aluminum coils, and various plated and coated coils. It is suitable for diverse industries such as automotive, containers, household appliances, food packaging, and construction materials.
    What is the maximum coil thickness and width this slitting line can handle?
    Depending on the model, the slitting line can handle coil thicknesses ranging from 0.2mm up to 6mm, and coil widths from 400mm up to 1600mm. For example, the 3×1600 model supports coil widths of 500–1600mm and thicknesses of 0.3–3.0mm, while the 6×1500 model handles thicknesses of 1–6mm and widths up to 1500mm.
    What is the working principle of the slitting machine?
    The slitting machine works by continuously roll-cutting wide coil materials through the rotation of upper and lower circular disc knife shafts. The material passes through the knife system, which precisely divides it into multiple narrow strips of the required width along the length direction, all in a single continuous pass.
    What main components are included in the slitting production line?
    The complete slitting production line includes a loading cart, uncoiler, slitter, scrap winder, cropping shear, tension controller, and coil recoiler. A loop bridge, pinch rollers, and deviation corrector are installed between each machine to ensure smooth and accurate material feeding. The line integrates mechanical, electrical, hydraulic, and pneumatic technologies.
    How many strips can the slitting line cut in a single pass?
    The number of strips produced per pass depends on the model. For example, the 1.2×1250 and 3×1600 models can cut up to 25 strips, the 6×1500 model up to 20 strips, and the 2×1250 model up to 15 strips — all in a single continuous operation.
    What surface treatments are applied to the knife shafts and frames for durability?
    The knife shafts and frames undergo a series of precision manufacturing processes to ensure long-term durability and accuracy. These include CNC turning, high-frequency heat treatment, precision grinding, and chrome plating. These processes enhance surface hardness, wear resistance, and dimensional precision, ensuring stable cutting performance over an extended service life.