stainless screw conveyor
What are the types of stainless steel screw conveyors?
As a multifunctional conveying equipment, the type classification of stainless steel screw conveyor can be carried out from multiple dimensions to adapt to different material characteristics, conveying needs and installation environments. The following are some of the main classification methods:Different grades of stainless steel can be used according to different requirements for corrosion resistance, high temperature resistance and hygiene level.
304/304L stainless steel: more commonly used, with good corrosion resistance, suitable for food, general chemical and other fields. 304L (low carbon) has better intergranular corrosion resistance after welding.
316/316L stainless steel: has better chloride corrosion resistance than 304, especially suitable for materials and environments with high salinity, strong acidity and alkalinity or more corrosive. 316L (low carbon) also has better welding performance.
Other special stainless steels: such as duplex stainless steel, ultra-low carbon stainless steel, etc., are used in special corrosion or high temperature environments.
Shafted stainless screw conveyors are suitable for conveying materials with good fluidity, uniform particles, and not easy to entangle. The presence of the central shaft enables the spiral blades to provide stable support and precise conveying control.
Shaftless stainless screw conveyors are ideal for handling materials that are easy to entangle, viscous, and have high moisture content. The shaftless design avoids the problem of materials winding around the shaft, while increasing the material's passing cross-section, making it less likely to clog and requiring relatively low maintenance.
Basic parameters of stainless screw conveyors
| Model |
Diameter (mm) |
Pitch (mm) |
Rotating speed (r/min) |
Capacity (m³/h) |
Rotating speed (r/min) |
Capacity (m³/h) |
Rotating speed (r/min) |
Capacity (m³/h) |
Rotating speed (r/min) |
Capacity (m³/h) |
|
| Small | 100 | 100 | 100 | 140 | 2.2 | 112 | 1.7 | 90 | 1.4 | 71 | 1.1 |
| 125 | 125 | 125 | 125 | 3.8 | 100 | 3 | 80 | 2.4 | 63 | 1.9 | |
| 160 | 160 | 160 | 112 | 7.1 | 90 | 5.7 | 71 | 4.5 | 56 | 3.6 | |
| 200 | 200 | 200 | 100 | 12.4 | 80 | 9.9 | 63 | 7.8 | 50 | 6.2 | |
| Small | 250 | 250 | 250 | 90 | 21.8 | 71 | 17.2 | 56 | 13.6 | 45 | 10.9 |
| 315 | 315 | 315 | 80 | 38.8 | 63 | 30.5 | 50 | 24.2 | 40 | 13.4 | |
| 400 | 400 | 355 | 71 | 62.5 | 56 | 49.3 | 45 | 38.6 | 36 | 31.7 | |
| Large | 500 | 500 | 400 | 63 | 97.7 | 50 | 77.6 | 40 | 62 | 32 | 49.6 |
| 630 | 630 | 450 | 50 | 138.5 | 40 | 110.8 | 32 | 88.6 | 25 | 69.3 | |
| 800 | 800 | 500 | 40 | 198.5 | 32 | 158.8 | 25 | 124.1 | 20 | 99.3 | |
What are the advantages of stainless screw conveyors?
Stainless steel screw conveyor has unique advantages among many bulk material conveying equipment due to the special nature of its material. The following are the main advantages of stainless steel screw conveyor:Corrosion resistance: This is the core advantage of stainless steel. Stainless steel (such as 304, 316L, etc.) contains alloy elements such as chromium and nickel, which can form a dense passivation film on the surface, effectively resisting the corrosion of acid, alkali, salt solution and various organic and inorganic chemicals.
Avoid material contamination: Stainless steel material itself is stable in nature, will not release harmful substances into the conveyed material, and will not react chemically with the material. This ensures the purity of the material during the conveying process and avoids rust contamination or other impurities that may be caused by carbon steel equipment.
Strong structure and durability: Although the cost of stainless steel is higher than that of carbon steel, its high strength and toughness ensure the strong structure of the equipment. With sophisticated manufacturing technology, stainless screw conveyor can withstand continuous material loads and operating stress.
Wide adaptability: In addition to the versatility of traditional screw conveyors in conveying various types of powdered, granular, and small block materials, the addition of stainless steel enables it to be expanded to a wider range of material types, especially those materials that have special requirements for material purity, hygiene level, and corrosion resistance, such as polymers, fine pigments, condiments, and various additives.
What are the applications of stainless screw conveyors?
Stainless screw conveyors play a role in a variety of material handling scenarios, mainly used for continuous conveying of bulk materials, especially in those occasions where there are specific requirements for material purity, hygiene, or equipment corrosion resistance.Handling corrosive materials: When the material itself is acidic, alkaline, or otherwise corrosive, stainless steel can resist erosion, extend the service life of the equipment, and ensure the stability of the conveying process.
Requirements for material purity: When the conveyed material cannot be contaminated by rust or other impurities, stainless screw conveyors are an important choice. It ensures that the material maintains its original purity throughout the conveying process.
Need to maintain hygiene and cleanliness: In scenarios that require frequent cleaning and disinfection, the smooth surface and corrosion resistance of the stainless screw conveyor make it easy to clean, help maintain a high standard of hygiene and avoid cross-contamination of materials.
Material conveying and grading: It can be used to convey powders, granules, and small pieces of materials from one processing unit to another, and can also assist in grading or mixing materials in some cases.
Adapt to complex space layout: The stainless screw conveyor can be installed horizontally, tilted or vertically according to the actual space and process requirements on site, and flexibly adapt to various material conveying paths.
