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1. Title: Optimizing Coil Slitting Process
Article Summary:
Optimizing the Shear slitting process is needed to increase the productivity rate and lower the error in
the process of coil slitting. In this article we would tackle different ways to optimize the shear slitting
process and what is the most versatile and commonly used method to slit materials.
Shear slitting is the most convenient and the most usual method to cut different ferrous and non ferrous
materials. Though, commonly known as a demanding and it requires full attention to control certain
variables needed for a high quality slitting.
Article Body:
Cutting metal rolls or coils is one of the processes that need precision. Thin coils are cannot be sheared
manually using shears and most of the times heavy equipment for coil slitting Valparaiso, Indiana are
needed to complete the process with no error or to avoid problems with the edges of the material.
Optimizing the Shear slitting process is needed to increase the productivity rate and lower the error in
the process of coil slitting. In this article we would tackle different ways to optimize the shear slitting
process and what is the most versatile and commonly used method to slit materials.
Coil Slitting Process Optimization
Shear slitting is the most convenient and the most usual method to cut different ferrous and non ferrous
materials. Though, commonly known as a demanding and it requires full attention to control certain
variables needed for a high quality slitting. When these values and their influences are known and have
been identified, guidelines for optimizing them are refined and the slitting processes are presented.
Variables need to Control
There are two main variables to control during the process of coil slitting and they are:
1. Consistency in slit quality is within the reach
2. Controlling the variables in the process of slitting.
These main variables do not simply needed control, but rather have full control for the businessman to
avoid errors that could cause major loss.
To achieve and maintain a précised and quality cut, it is important to know the impact of the several
factors that could be controlled. These factors are:
• Blade sharpness
• Cant angle

2. • Overlap
• Side force
• Web velocity
• Slitter geometry
• Trim removal
Understanding the blade Profile
The blades are the most important mechanism inside the coil slitting lines and it is important to know
different blade profile that would allow you to understand the process and the function of each blade.
“Zero degree” blade – it is the strangles blade edge, used for slitting metals, low elongation plastics and
newsprint.
“25 to 30 degree” blade – It is general purpose edges for slitting paper, films, laminate and non wovens
boards.
“45 degree” blade – It is a compromise between the blade strength and distortion of product ant slit
edge.
“60 degree” blade –a very weak blade edge used for sheeters and wrap configured slitting lines to
reduce distortion of product at slit edge.
“45 to 60 degree” blade – have a fragile edge that has been rarely used for today.
Minimizing the Post-Slit Damage
After understanding the blade profiles used in these machines, it is now important how to minimize the
web damage problems surrounding the coil processing. Here are some tips in minimizing web damage
during slitting.
• The blade profile determines the web’s path around the slitter blade.
• Tangent systems deflect the web with less cross-machine strain and give more blade profile
options needed.
• The wrap systems generates compound bending, remember that the blade profile options are
limited.