The application of plastic rotary cutters in machinery is quite widespread, with relevant news covering areas such as plastic pelletizers, wall-climbing descaling equipment, and shredders:

Regarding plastic pelletizers:
There is a type of plastic pelletizer with a detachable rotary cutter. The rotary cutter consists of a cutter shaft and blades, with a clamping block at the lower part of each blade that fits into the blade groove of the cutter shaft and is secured by a fixing plate. When a single blade is damaged, it can be removed and replaced, avoiding the need to scrap the entire rotary cutter. This reduces costs and improves the qualification rate of plastic pellets.

Regarding wall-climbing descaling equipment:
Hebei Yisu Pipeline Manufacturing Co., Ltd. has obtained a patent for "a chip removal device for wall-climbing descaling equipment." This device can be used in plastic pipeline oxidation layer removal equipment. While the rotary cutter scrapes off the oxidation layer from the outer wall of plastic pipelines, a power component provides suction to draw waste material into a collection box for discharge, reducing the impact of waste on the rotary cutter.

Regarding shredders:
Yuantong Heavy Industry has developed a dual rotary cutter shredder that can process flexible materials such as used clothing and plastic film. Two counter-rotating rotary cutters are equipped with dynamically arranged blade blocks in a spiral layout. The interaction between the moving blades and fixed blades creates a tearing and shearing action, effectively shredding flexible materials. Additionally, the blade blocks of the rotary cutter can be repositioned and reused after wear, lowering maintenance costs.