LIUZHOU LIAN UNITED KNIVES CO.,LTD.

LUK Circular Knives for Roll slitting

 Roll slitting is a shearing operation that cuts a large roll of material into narrower rolls. 

 
There are two types of slitting: log slitting and rewind slitting. In log slitting the roll of material is treated as a whole (the 'log') and one or more slices are taken from it without an unrolling/re-reeling process. In rewind slitting the web is unwound and run through the machine, passing through knives or lasers, before being rewound on one or more shafts to form narrower rolls. 
 
The multiple narrower strips of material may be known as mults (short for multiple) or pancakes if their diameter is much more than their width.For rewind slitting the machine used is called a slitter rewinder, a slitter or a slitting machine - these names are used interchangeably for the same machines. For particularly narrow & thin products the pancakes become unstable, and then the rewind may be onto a bobbin-wound reel: the rewind bobbins are much wider than the slit width and the web oscillates across the reel as it is rewound. Apart from the stability benefit it is also then possible to put very long lengths, (frequently many tens of kilometres), onto one bobbin.
 
Our knife including top slitting knives, dished knives, bottom knives and circular knives. 
in D2, M2, HSS and Carbide material.
 
1. In slitting circular knives, material is D2, M2. dimension as follow 
    62 x 40 x 1mm, 
    64 x  40 x1mm, 
    90 x 60 x 1.2mm, 
    100 x 65 x 1.2mm, 
    105 x 65 x 1.2mm,
    105 x 75 x 1.2mm, 
    130 x 100 x 1.5mm, 
    150 x 100 x 1.5 mm and so on 
    
2. For high quality paper rewinders blade, we produce circular blade in Tungsten Carbide. dimension as follow
    240 x 32 x 1.2mm
    250 x 150 x 1.2mm
    260 x 114 x 1.4mm
    280 x 160 x 1.5mm and so on. 
    
3. In high quality guillotine, we produce for Polar blade, Wohlenberg blade and Perfecta blade.