Prokop eltex [ india ] pvt. Ltd., the sister concern company of eltex group of companies manufactures and exports air lock. An air lock machine is a piece of equipment to allow discharge of process material from the space with air pressure different from the atmospheric to the space with normal pressure conditions. Process material can be grain, four or dust. If the moisture content of the material is more than 14% and if the material is sticky or glue, the airlocks cannot function successfully. It has the following merits.