What is the difference between screw feeder and screw conveyor?

Both screw feeders and screw conveyors are mechanical equipment that complete material transportation through screw motion, but the functions and use environments of the two are slightly different.

Screw feeder is a kind of mechanical equipment specially used for feeding materials. It transports materials from upstream to downstream through the rotating motion of the screw. It is often used in the feeding process in the production process of coal, cement, chemical fertilizer, food and other industries. The characteristic of the screw feeder is that the conveying process is continuous and stable, and it can meet the high-speed conveying requirements of large quantities of materials.

Screw conveyor is a general-purpose conveying equipment, mainly used for conveying and storing materials, widely used in chemical industry, building materials, food, environmental protection and other industries. The screw conveyor is not only capable of horizontal conveying, but also inclined and vertical conveying, so it has strong adaptability. The conveying speed is slower than that of the screw feeder, but the conveying capacity is larger, which is suitable for long-distance and large-scale material conveying.

In addition to the different functions and usage environments, there are also differences in structure between screw feeders and screw conveyors. The screw feeder usually adopts a single-roller structure, that is, the screw is in the shape of a single roller, while the screw conveyor has a variety of structural forms, including single, double and multi-roller types, and special structures such as three-dimensional rotary screw conveyors.

In addition, in terms of maintenance, there are some differences between the two. A lubricating oil station is usually added to the screw feeder to ensure that it will not cause overheating and jamming due to friction during high-speed operation, while the screw conveyor often adopts an open structure, which is more convenient in cleaning and maintenance.

To sum up, both screw feeders and screw conveyors are commonly used material conveying equipment, and they are mainly different in function and use environment, structural form and maintenance. In specific use, appropriate equipment should be selected according to actual production needs. Dahan manufacturers produce different models of screw feeders and screw conveyors. There will always be one that meets your standards. If you are interested in it, welcome to check out our product page, or communicate with us directly online.