Pallet stretch wrapping machines stabilize, protect, and bundle pallet loads by wrapping them uniformly with stretch film, which clings tightly due to its elastic properties. Depending on the model, the load sits on a rotating turntable while the film carriage moves up and down a vertical mast, or the machine may use a rotating arm or ring around a stationary pallet. The system can be semi-automatic (manual loading, automatic wrapping) or fully automatic (pallet arrives, gets wrapped, exits without human intervention). Key controls include adjustable film tension (including powered pre-stretch to improve film usage efficiency), automatic height detection (to stop wrapping at the correct height), multiple wrapping programs (bottom wrap, reinforcement at top/middle, etc.), and safety features like emergency stops and covered chain drives.