The On-Line Drier is used to dry the products and delivers out the same through the conveyor. The On-Line Drier is of tunnel type having independent metal tray (M.S. Trays coated with heat resistant coating) holders operated by automatic indexable conveyorised chain. The conveyor is of multi-pass system to save energy, space and investment. The whole chamber is made in a strong fabricated structure and the walls are insulated to have minimum radiation loss. Both sides of the Drier can be opened easily for general maintenance and inspection. The inner walls and ducts are protected with heat resistant paint for long life. A safety clutch is provided to protect any major accident while in operation.