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Home Machinery Coil Slitting Machine 1250mm Narrow Strip Double Knife Holder Slitting Line

1250mm Narrow Strip Double Knife Holder Slitting Line

Foshan Xiangfutai Machinery Equipment Co., Ltd.

Website:
www.fotslittingmachine.com

1250mm Narrow Strip Double Knife Holder Slitting Line

Slitting 1250mm coil into 20mm strips is a different business from slitting it into four. The knives are closer together than the holders are wide, the strands pull against each other, and the recoiler has to wind 30 coils on one mandrel without any of them interleaving. This line is built for that: 0.2 to 2mm, 1,250mm wide, slit widths down to 12mm, up to 40 strands, 50 to 280 m/min. The knife holders are 8mm thinner than standard and the spacer rings are ground to 0.005mm, because at 12mm pitch a 0.02mm error in a spacer accumulates into a 0.4mm width error across 20 knives. At that pitch a 1250mm double knife holder line is precision work: forty strands mean forty chances to be a hundredth out. Narrow-strip tension is the technical problem. Each strand wants its own tension, and a single recoiler can't give it. The line uses a pressure roll that rides on the coil build and a separator shaft with discs at every strand boundary; the discs carry the strand separation and the pressur…

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