The types of the belt conveyers produced by SJLC are as follows: 1. Devided by Driving Method: A. STD-Mechanical Drive It's driven by cycloidal pinwheel reducer (with outdoor motor ) and chain-drive mechanism. B. STDJ Ⅱ Mechanical Drive Series. It adopts upside-down reducer and belt-drive mechanize. C. STD-Electric Rotor Drive Series It's driven by electric rotor. 2. Divided by Installation Methods A. Fixed Series It's directly installed on foundation. B. SDY-Portable Series It's equipped with type for moving and slope adjusting capability, It can be Easily, it can be reely moved and adjusted by different transfer requirements 3. Divided by Structures: The belt conveyers produced by SJLC have three different structures. A. U-steel B. Frame C. Truss