If you want to produce valve bags for your products, the bottomer machine is a necessity. The bottom sealing machine is used for forming a complete valve bag. The bottom sealing machine would open the bottom of the tube on each end, folding, gluing, and compacting. In Tecon, two types of bottomer machines are available. The one is HD 8918 which is used for producing wide-bottom chemical bags. The other one is HD 8916 which is mainly used for producing cement bags and mortar bags.