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CNC steel coil slitting line / Recoiling and slitting line

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A CNC steel slitting line is used to break down master coils into smaller coils of a particular width, that an end user such as a metal stamper, tube producer, roll forming house can use in its production of some type of finished goods. It is used for CNC steel coil slitting line 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, and highly automated and high production efficiency. 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 CNC steel coil slitting 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 an integration of mechanical, electrical, hydraulic and pneumatic technology.

There are two types of slitting lines:

Thin plate slitting line

This line is used for steel plate coil to uncoiling, recoiling and slitting lin to required steel strips. This line applies to hot rolled carbon steel, tinplate, stainless steel and other different kinds of surface plated metal. for the user with higher requirement, uncoiling with automatic edge aligning or centering is preferable, which has the advantage of easy entering coil, high working efficiency, improving cutting precision and protecting plate as well. EPC automatic edge control can be adopted as well, which can guarantee recoiling in tidiness, especially for the wider recoiling. This line is composed of entry coil car, uncoiler, feeding in device, leveler, head shearing device, loop pit, side guide, slitting device, scrap winder, tension unit, recoiling machine, unloading device.etc.

Medium and thick plate slitting line

This line is used for steel plate coil to uncoiling, recoiling and slitting line to required steel strips. This line applies to hot rolled carbon steel, tinplate, stainless steel and other different kinds of surface plated metal. This recoiling and slitting line is used for middle and thick hot rolled steel plate coil to uncoiling, recoiling and slitting line to required steel strips. This line applies to hot rolled carbon steel, thick aluminum coil, stainless steel and other different kinds of surface plated metal. This line is composed of entry coil car, uncoiler, feeding in device, simple leveler, head shearing device, Side Guide, thick plate slitting device, scrap winder, tension unit, recoiling machine, unloading device.etc.

The characteristics of CNC steel coil slitting line are-

  • For the same thickness of high strength steel with normal carbon steel and it requires machine strength to increase a lot, bigger motors, bigger rollers and shafts as well as bigger slitting tools.
  • Material of slitting knives should be harder: SKD-11, H13, SLD, hardness ≥HRC60.
  • Slitting speed shall not be as high as plain carbon steel coil slitting line
  • Input coils: stainless steel.
  • Strip thickness: 1-5mm.
  • Strip width: 600-1600mm.
  • Inner diameter of coils: Φ508, Φ610 and Φ760mm.
  • Maximum outer diameter of coils: Φ2000mm.
  • Maximum coil weight: 25,000kg.
  • Slitting shaft: Φ260.
  • Slitting motor: 132KW DC motor.
  • Material of disc cutter: H13.
  • Recoiling spindle: Φ508.
  • Recoiling motor: 160kW DC motor.
  • Slitting speed: 0-60m/minutes adjustable.

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