Screw conveyor is a continuous conveying equipment without flexible traction. The materials are conveyed along the fixed machine inner shell and pushed forwards by the force from the rotation of the screw. Its working principle is similar as the forced still nut takes the translational motions along the screw. The forces, which prevent the materials from being rotated with the screw, include the gravity of materials and friction towards the machine shell. The screw conveyer has been widely applied in all kinds of industries to convey several of materials in the state of powder, particles and small lump, such as coal ash, cement, sand, lump coal, cereals and etc. However, it is not easy to convey the caking materials which are easy to go bad and sticky.
♦It is simple in structure and convenient to be maintained. The outer area of the cross section is not big;
♦The materials outlet can be designed in any positions of the longitudinal direction on the machine.
♦The cover of the machine shell can be tightly closed to reach a good performance of sealing.
Diameter of Screw (mm )
Max. Rotary Speed（r/min )
Max. Output Capacity(t/h)
2 x Φ127
2 x Φ168
2 x Φ219
2 x Φ273