What is the maximum rpm of a screw conveyor?

The maximum speed of the screw conveyor is usually around 300-400 rpm. However, specific values will vary based on specific design requirements and applications. The maximum speed of the screw conveyor needs to consider many factors. First of all, we must understand the structure and working principle of the screw conveyor.

Screw conveyor is a kind of continuous conveying equipment, mainly composed of spiral body, supporting bearing, transmission device, material inlet and outlet, etc. When the motor is started by the transmission device, the screw body starts to rotate and transports the material from the inlet to the outlet.

The calculation of the maximum speed needs to consider many factors, such as the diameter of the spiral body, the pitch angle, the type and density of the material, the conveying angle and so on. Among them, the diameter of the helix and the pitch angle are the most important factors.

The larger the diameter of the helix, the lower the maximum speed. Because the diameter of the spiral body increases, its inertial force increases, which intensifies the load on the bearing and transmission. Usually the screw conveyor diameter does not exceed 500mm.

The pitch angle also affects the maximum speed. The larger the pitch angle, the faster the auger can push the material, so the conveying efficiency can be increased. However, if the pitch angle is too large, it will also limit the speed, because the helix will generate tension when it rotates at high speed, and the pitch angle exceeding the limit may cause damage to the helix.

The type and density of the material will also affect the maximum speed. The greater the density of the material, the greater the frictional resistance, and the speed of the spiral will be limited. The properties of different materials are different, and the restrictions on the speed are also different.

The delivery angle also affects the maximum rotational speed. The larger the conveying angle, the greater the force to overcome gravity and resistance, and the greater the load on the spiral body.

To sum up, the maximum speed of the screw conveyor varies in different situations, usually around 300-400 rpm. In practical application, it should be adjusted according to the specific situation to ensure the safe and stable operation of the equipment. If you have any other questions about the screw conveyor, please feel free to click online chat and I will be honored to answer you in detail.