Material that’s going to be treated by a rotary shear is material that needs to be treated by cutting (such as carpet/cloth rolls/plastic rolls etc.). It is also contaminated with metals etc., something which the rotary shear is not affected by. The material can be made to small size.
Material that’s going to be treated by a hook shredder is material that needs preparation for further processing (in many cases). Breakable materials or materials that can be torn apart by great force is broken down to about (0)100 – 500 mm. This material then makes it easier for a hammer mill or other type of cutting machine to do the rest of the job in an easier way.
There are also cutting-edge machines derived/designed from the lathe. These machines can be used to cut waste, which is more or less free from contaminants, into the desired size. They are slower in speed than a hammer mill (about 100-140 rpm) and use sharp edges to cut the waste to the desired size.