Spiral body is the core functional component of screw conveyor, mainly made of low-carbon steel, low-alloy steel, and stainless steel.

In the field of conveying accessories, the spiral body is a key component of the screw conveyor, mainly composed of spiral blades and a central shaft.
1. Structural composition
Spiral blade: usually coiled around the central axis according to a certain pitch rule, with a shape similar to a flat surface unfolded by a spring. The thickness, material, and pitch of the blades may vary depending on different conveying requirements. For example, when transporting materials with large particles and strong friction, thick and wear-resistant blades may be used; For some fine powder conveying, the pitch design will be more precise to avoid material blockage.
Central axis: runs through the center of the spiral blade, supporting the blade and transmitting power. The diameter and strength of the shaft should be designed based on factors such as the weight of the conveyed material, conveying distance, and conveying speed to ensure that it will not bend or break during operation.
2. Working Principle
The spiral body rotates under the drive of power devices such as motors. When the spiral body rotates, the material will move along the axial direction of the spiral body under the push of the spiral blades, just like a nut moving on a screw, thus achieving the transportation of the material.
3. Application scenarios
In the field of agriculture, it is commonly used for transporting bulk materials such as grains and feed on farms, from warehouses to processing equipment or breeding sites.
Industrial production: In the chemical and building materials industries, it is used to transport powdered or small granular raw materials, such as cement, coal powder, etc., to achieve material transfer in the production process.
Food processing: Transporting food raw materials such as flour, sugar, etc. However, the spiral body used in the food industry must comply with food hygiene standards to prevent material contamination.