FP CS 6050 is operator fed and designed for heavy duty applications.These machines are reliable, cost-effective and durable providing savings to your production process.More importantly, these machines provide a professional looking seal. The FP CS-6050 Semi-Automatic Uniform Carton Sealer with Easy Manual Carton Size Adjustment has a 4-belt design (2 top and 2 bottom).The machine comes complete with infeed/exit conveyors, casters, power cord, and plug. The operator simply folds the top flats of the corrugated carton and feeds it into the machine. The FP CS-6050 can be easily adjusted in only seconds to process a different size carton.