As the main component that directly contacts and drives the movement of materials, spiral blades have an irreplaceable position. In the use of product processing, the specific type of spiral blade needs to be determined first. The spiral blades of a general screw conveyor can be divided into four types: solid type, belt type, blade type, and tooth type. Their corresponding usage characteristics and processing technology are different.

For example, solid spiral blades are commonly used for conveying powdered and granular materials; Belt type spiral blade components are suitable for conveying powder and small pieces of materials; Blade and toothed blades are more suitable for conveying materials with high viscosity and compressibility. According to different types, corresponding manufacturing processes are adopted.

When conveying materials, a screw conveyor uses a fixed spiral body to rotate, and the linear motion accompanying the movement drives the materials forward. The material moves forward in a spiral shape, which is accompanied by a circumferential rolling motion while being transported forward. Therefore, the speed of the horizontal slow screw conveyor cannot be too high, while the vertical fast screw conveyor needs to use the high-speed rotation of the spiral body to form sufficient friction between the material and the material groove, in order to overcome the frictional resistance of the spiral blades on the material and the gravity of the material itself, and ensure that the material is transported upwards.

According to the structural characteristics and performance of spiral blades, spiral conveyors are usually used for conveying materials in the production process of grain and oil and feed processing plants. However, it should be noted that it is not suitable for conveying large blocks, materials with high levels of fibrous impurities, strong wear and tear, and materials that are prone to breakage or adhesion, in order to avoid blockages and material breakage.

We can use continuous cold rolling of strip steel to make integral spiral blades according to the designed technical parameters such as diameter, pitch, thickness, etc; It is also possible to first make single pieces with equal pitch, and then weld them together to form a whole, forming segmented spiral blades. Regardless of the processing method, it is designed to meet the requirements of material transportation.