Mojj engineering systems ltd manufactures rotary tube bundle dryers. A tube bundle is like a heat exchanger, rotated in a stationary insulated housing. Lifters provided on the tube bundle lift the material and shower them on the hot tube bundle surface. Steam is passed from one end of tube bundle for drying and condensate is removed from the other end. Gentle drying; no breaking of material, high heat economy and continuous operation are some of its advantages.