The Pallmann single-shaft shredders, type PLS, use a hydraulic ram system to feed material into the rotor and is best suited for the size reduction of most types of plastic waste and many other materials. Plastics such as purging, waste from pipe scrap, profile and film, bales PET bottles, fiber and carpet waste are many of the applications that work well with Pallmann single-shaft shredders.

The Horizontal Knife Mill is usually installed on the production floor or in a pit. Typical feeding method is by hand, with a belt conveyor, a forklift, a crane or other mechanical devices into the feed hopper.

The feed material is automatically fed into the rotor by means of a hydraulic, intermittently moved live bottom. The material is size reduced between the rotor- and stator knives. A screen keeps the material in the grinding chamber until the desired final size is achieved. The finished product is discharged straight down and is transported further either pneumatically or mechanically, depending on the material condition or the downstream processing step.