First, in the use of materials, rubber has developed from natural rubber to synthetic rubber of conveyor belt and further expanded to special synthetic rubber CSM, HNBR: skeleton material from the cotton fibers expand to rayon, polyester, nylon, glass fiber, steel wire and aramid, etc. In order to improve the durability of V belt, cutting-type belt emerged from 60′s, the side of  cutting-type belt does not pack cloth which has very good resistance to bending fatigue and has replaced most of the cloth-type conveyor belt.

On the other hand, into the 80′s, the combination of flat conveyor belt and V-band  conveyor belt had a rapid developmen. As its excellent performance, the production sharply increased and partly replace of cutting-type V belt. Then, wedge V belt had emerged in the United States and Japan. Because the V belt is thin and has a large area contacting with the pulley which has a good performance.

The latest products of conveyor belt is the tooth belt which is also called timing belt. It set gear, chains, belt drives on the benefits of one. The advantage of timing belt are as follows: high efficiency of transmission, accurate transmission ratio, low noise, energy saving, convenient maintenance. Although its driving principle applied to a number of patents as early as 1900, but not until after half a century, industrialization began. Since the 80s, timing conveyor belt has finally become the leading precision mechanical transmission products. Especially the using of saturated nitrile rubber and polyurethane elastomer manufacturing high-precision micro-zone. The largest difference between tooth belt drive and traditional conveyor belt is: sync, mute. Therefore, it becomes the most respected environmental protection product now. In recent years, tooth belt gear teeth develop into round tooth which increases the transmission power further, and the development prospect is broad.