The hoister has many advantages, such as large conveying capacity, higher hoisting height, and reliable and stable operation, and long life performance. Its main performance and parameter conform to JB3926-85 in vertical bucket conveyer standard which referenced to international standard and foreign advanced standard. The dragged link chain accords with MT36-80 in mine used high-strength link chain standard .This machine is suitable for conveying power, granular and small blocked material with low grind ability or no grind ability such as coal, cement, rock, sandstone, clay, ore. Because of the drawing mechanism's link chain of hoister, it permits that convey higher temperature materials.