Two shafts shredder explain from the name,which have two axis,two groups of blades.two motors,two gear box. two shafts shredders used for shredding big size and hardness scraps into strips.( not chips) the width same as the blades width,the length depend on the shred scraps,but from 50-200mm. while the two shafts shredder can shred : scrap metals,scrap plastic,E-Wate,Solid Waste,MSW etc.
