The plane envelope ring surface worm decelerator is a new type of mechanism. It has large loading capacity, high efficiency and compact reasonable dimension. This kind of decelerator can be widely used in decelerator drive of each kind of transmission machines, for example, metallurgy, mining lifting, chemistry, building, rubber and plastic, ship industry and other mechanical equipment. The working temperature is from -40°C to +40°C. The rotational speed of input shaft is less than 1,500r/min. The worm shaft can rotate towards positive and negative sides. Features: 1) High quality aluminum alloy, elegant appearance, efficient heat radiation, high carrying ability 2) Installed in multiple surfaces, hollow output shaft, various input and output types, conjoins with other transmission machinery easily 3) It is small, compact, light-weight, and will save mounting space 4) Runs steadily with low noise, reliable and efficient Currency: USD Quantity: 1 Delivery: 30 days after receiving customer's advance payment Wooden cases or according to customers' requirements