Belt conveyer has the advantages of large transportation throughout, simple structure, easy maintaince and part standardization. It is widely used in salt, chemical, food grain industries for transporting of loose materials and packed products. According to the requirements of transportation technology, single conveyer can be operated or more belt conveyers can work together. It can be composed with other transportation equipments in from of horizontal or inclined transportation systems for the operation requirements from different layouts. Transportation speed can be designed as fixation or continuous variable transmission. Belt conveyers can be used at the temperature range of -20℃ +40℃ and transporte material temperature below 50℃.