The HI Series of Impulse Sealers are self standing machines which are easily activated by lightly stepping on a manual foot pedal located at the base of the pedestal. The Hi-Ext Height Extender raises the machine 10 inches making standing operation more comfortable and productive. Model | HI300/2T | HI450/2T | HI600/2T | HI300/5T | HI450/5T | HI600/5T | Max Seal Lgth | 12" | 18" | 24" | 12" | 18" | 24" | Max Seal Thk | 6 mil | 6 mil | 6 mil | 6 mil | 8 mil | 8 mil | Seal Width | 2 mm | 2 mm | 2 mm | 5 mm | 5 mm | 5 mm | Watts | 400 W | 450 W | 800 W | 650 W | 900 W | 1200 W | Weight | 50 lbs | 52 lbs | 60 lbs | 53 lbs | 55 lbs | 63 lbs | |