High Speed Shear Slitting: Facing the Issues

Presented by Mike Flannigan, Maxcess International

As line speeds increase, controlling shear slitting set up variables becomes critical. Blade overlap or depth of cut, side load force, cant angle, blade profile, blade run-out and bottom knife overspeed relative to line speed, are some of the factors which will be discussed.

These variables have an impact on the quality of the slit edge, blade life and the ability to produce quality coated products at higher speeds. For this presentation, the variables have been grouped into four types of dynamics:;1) hardware dynamics, 2) nip dynamics, 3) web path dynamics and, 4) material response in the shear slitting nip.