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Corrosion-resistant shaftless screw conveyor, with innovative shaftless design to get rid of entanglement problems, high-quality corrosion-resistant materials to cope with harsh working conditions, fully enclosed structure to prevent leakage, providing reliable solutions for material transportation in various industries!
Price: $650.00-$3,560.00/set. Consult now.
Conveying capacity: 458 cubic meters/hour.
Length: 40~70 meters.
Speed: 13~140 rpm.
Torque: 4000N/m.
Diameter: 150-500mm.
Material: stainless steel/carbon steel/titanium alloy.
Conveying angle: supports horizontal, inclined, and vertical conveying.
Applicable materials: sludge, cement, concrete, clay, chemical filter cake, waste catalyst, food-grade acid and alkali raw materials.
Corrosion-resistant shaftless screw conveyor adopts a center-shaft-free structure and advanced anti-corrosion materials to perfectly solve the transportation problems of corrosive materials such as strong acids, strong alkalis, and high salts. The equipment has three core advantages: corrosion resistance, leakage prevention, and wear resistance. It is the best choice to replace traditional conveyors. It supports customized anti-corrosion solutions and has been successfully applied to extreme working conditions such as sulfuric acid and electrolytes. The service life is increased by more than 3 times!
Corrosion-resistant shaftless screw conveyors use a variety of corrosion-resistant materials: stainless steel resists medium corrosion, titanium alloy resists high temperature oxidizing media, adapts to low concentration corrosion, and accurately matches the characteristics of different materials.
Stainless steel material: The main body of the equipment is mostly made of 304 or 316L stainless steel. 304 stainless steel has good corrosion resistance and can resist general weak corrosive media. 316L stainless steel has a higher corrosion resistance due to the addition of molybdenum. It can easily cope with medium-intensity corrosion conditions. It is a common choice in the chemical industry for the transportation of materials such as dilute sulfuric acid, phosphoric acid solution, and PVC particles.
Special alloy material: Hastelloy stands out for strong corrosive environments. It shows strong tolerance to strong acids, strong alkalis and fluorine-containing media, and is often used for the transportation of high-purity materials in fine chemicals.
The core innovation of the corrosion-resistant shaftless screw conveyor is that it eliminates the central shaft of the traditional screw conveyor and uses an integrally formed shaftless spiral blade directly fixed to the inner wall of the U-shaped trough.
Prevent leakage and pollution: The fully enclosed conveying structure, whether it is a tube or U-shaped trough design, can eliminate the risk of material leakage. For volatile, toxic or highly corrosive materials, the fully enclosed structure can effectively prevent the material from volatilizing into the environment and avoid harm to the operator.
Maintaining material properties: During the conveying process, the fully enclosed environment can prevent the material from contacting with the outside air, moisture, etc., prevent the material from changing its own properties due to oxidation, deliquescence, etc., and ensure the purity and chemical stability of the material.
Anti-winding performance: The shaftless screw conveyor abandons the traditional central shaft design and uses a flexible integral steel screw to directly push the material. This design prevents the equipment from being blocked by the material winding around the central shaft when facing corrosive materials that are ribbon-shaped, fibrous or easily entangled.
Wide material adaptability: The shaftless structure avoids the obstruction of the central shaft to the flow of materials. Whether it is viscous corrosive slurry or materials containing corrosive components with uneven particle size and irregular shape, they can be smoothly conveyed.
At the working site of the corrosion-resistant shaftless screw conveyor, the material falls evenly into the U-shaped trough through the feed port, and the shaftless spiral blades rotate under the drive of the motor. With the unique shaftless structure, it can easily push various materials, whether it is easily entangled sludge or granular chemical raw materials, it can be stably conveyed. During the transportation process, the fully enclosed structure effectively prevents material leakage and dust from flying out, ensuring a clean and tidy on-site environment.
| Model | WLS150 | WLS200 | WLS250 | WLS300 | WLS400 | WLS500 |
| Spiral diameter(mm) | 150 | 184 | 237 | 284 | 365 | 470 |
| Outer diameter(mm) | 180 | 219 | 273 | 351 | 402 | 500 |
| Incline degree(a) | 0 °-30 ° | 0 °-30 ° | 0 °-30 ° | 0 °-30 ° | 0 °-30 ° | 0 °-30 ° |
| Max Length(m) | 12 | 13 | 16 | 18 | 22 | 25 |
| Capacity(t/h) | 2.4 | 7 | 9 | 13 | 18 | 28 |
| Motor | Model | L ≤ 7 | Y90L-4 | Y100L1-4 | Y100L2-4 | Y132S-4 | Y160M-4 | Y160M-4 |
| Power kW | L ≤ 7 | 1.5 | 2.2 | 3 | 5.5 | 11 | 11 | |
| Model | L>7 | Y100L1-4 | Y100L2-4 | Y112M-4 | Y132M-4 | Y160L-4 | Y160L-4 | |
| Power kW | L>7 | 2.2 | 3 | 4 | 7.5 | 15 | 15Notes : The parameter above is just for reference, Model please inquiry us directly. We accept customization. |
In response to the corrosion requirements of different industrial scenarios, the corrosion-resistant shaftless screw conveyor provides two material options: carbon steel and stainless steel.
Stainless steel material: suitable for strong acid, strong alkali or high humidity environment. Its surface passivation film can resist chloride ion corrosion and has a service life of more than 10 years.
Carbon steel + anti-corrosion coating process: For mild corrosion scenarios, the equipment uses a carbon steel substrate, an epoxy resin coating on the outside, and an ultra-high molecular weight polyethylene liner on the inside. This combination not only ensures the strength of the tank body, but also blocks the corrosive medium through the coating. At the same time, the wear resistance of the lining increases the life of the equipment by 3 times when conveying hard materials such as sand and gravel.
Corrosion-resistant shaftless screw conveyors are suitable for conveying acid and alkali slurries in the chemical industry, transporting corrosive intermediates in the pharmaceutical field, and can also handle heavy metal-containing sludge, and are suitable for conveying acid and alkali raw materials in the food industry.
Sewage treatment: In sewage treatment plants, the equipment is linked with screen machines and presses to achieve full-process automation of screen residue from separation to compression.
Chemical industry: When conveying corrosive particles such as soda ash and fertilizers, the equipment sealing structure can prevent the risk of dust explosion. A fertilizer plant has installed explosion-proof motors and static elimination devices to enable the equipment to operate safely in flammable and explosive environments for more than 3 years.
Food processing: When conveying dust-prone materials such as flour and starch, the fully enclosed structure is combined with a negative pressure dust collection device to keep the dust concentration in the workshop below 5mg/m³, which is far lower than the national standard of 10mg/m³.
Construction industry: In dry-mixed mortar production lines, the equipment can replace traditional belt conveyors to avoid waste caused by material spillage.
According to the characteristics and transportation requirements of different industries and materials, the corrosion-resistant shaftless screw conveyor provides customized solutions. According to the corrosiveness, temperature, viscosity, particle size and other parameters of the material, the appropriate material can be accurately selected, the pitch and shape of the spiral blade can be adjusted, and the size specifications of the tank or pipeline can be determined. At the same time, according to the actual conditions such as the installation space, conveying distance and angle at the customer's site, a personalized conveying solution can be designed to ensure that the equipment can achieve efficient, stable and economical material transportation on the basis of meeting the corrosion resistance requirements.
Choosing us as a supplier, you will get full-dimensional guarantees from material adaptation to working condition customization: we have been deeply involved in the field of corrosion-resistant conveying equipment for more than 10 years, and can accurately match 316L stainless steel, carbon steel and other material combinations according to the corrosion level of the material, support -40℃~300℃ jacket, vacuum/pressurization and other special designs, provide after-sales response, so that you can be more at ease when dealing with strong corrosion and high-risk material transportation, taking into account the long-term effectiveness of the equipment and cost controllability. In addition, we support non-standard customization, and can customize the appropriate production plan and production line equipment for you according to your on-site conditions, and provide you with a perfect conveying solution.
In industrial scenarios such as sewage treatment, chemical production, and food processing that have extremely high requirements for environmental hygiene and material purity, traditional screw conveyors often suffer from low efficiency due to problems such as central shaft winding, material leakage, corrosion and wear. The corrosion-resistant shaftless screw conveyor, with its innovative shaftless design, fully enclosed structure, and high-quality materials, has become a key device to solve these pain points, providing a perfect solution for modern industrial transportation.
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