Profile: Charles Beseler Company specializes in shrink packaging. Our self-adjusting L sealer has fully welded seamless heavy steel frame & seal head, sure lock wire tensioners and automatic seal temperature compensator. It also has features such as automatic film opener, heavy duty casters, film tension brake and automatic dual magnets. The 1812-M-II combination sealer/tunnel has 18"x12" seal area, and 12"x6"x20" tunnel chamber. The sealer has self adjusting seal pads, fully welded heavy duty seal head, and heavy duty 11 gauge steel frame. The tunnel has adjustable top & side air dampers, and high velocity/volume blowers.