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Oat Flour Screw Conveyor is a food-grade conveying device specifically designed for oat flour, a fine, dust-prone material. Its conveying capacity is adaptable to varying production capacity requirements, meeting food hygiene standards and preventing material contamination.
Price: $1,500-$3,560/set
Conveying Capacity: 458 cubic meters/hour
Length: 30-70 meters
Speed: 13-140 rpm
Torque: 4000 N/m
Material: Carbon steel, 304 stainless steel, 316 stainless steel
Discharge ports: One or more (customizable)
Applicable Materials: Various grain flours, such as wheat flour, corn flour, and buckwheat flour; multi-grain flours, such as millet flour and red bean flour; food-grade powders such as milk powder and protein powder, as well as flour additives and feed powders.
Oat Flour Screw Conveyor is a specialized conveying device designed for fine, dusty food-grade powders like oat flour. It offers flexible customization and adaptability. A single unit can reach up to 30 meters, meeting the long-distance conveying needs of various sites. With a maximum diameter of 800mm, and precision-designed spiral blades, the conveying capacity can be flexibly adjusted to meet actual needs. The equipment supports customizable configurations, allowing for multiple discharge ports to accommodate production layouts and achieve multi-point unloading. A variety of materials are available, with 304 and 316L stainless steel preferred to meet food hygiene standards. Carbon steel can also be selected based on budget and operating conditions, fully tailoring to the hygiene, efficiency, and application requirements of oat flour conveying.
Depending on their structure and application, Oat Flour Screw Conveyors are primarily categorized into three types: tubular, U-shaped, and stainless steel handheld. Each type is designed to address the fine, dusty characteristics of oat flour.
Tubular Oat Flour Screw Conveyor: Utilizing a fully enclosed tubular casing, the design offers exceptional sealing, minimizing the risk of dust and moisture during oat flour conveying while preventing contamination from external impurities.
U-Shaped Oat Flour Screw Conveyor: Featuring an open or semi-enclosed U-shaped trough, the bottom of the trough fits snugly around the spiral blades, resulting in high conveying efficiency. While its sealing performance is slightly inferior to that of tubular models, it offers convenient and flexible loading and unloading, supporting multiple feeding and unloading points.
Stainless Steel Handheld Oat Flour Screw Conveyor: This lightweight device is constructed from food-grade stainless steel, meeting hygienic standards. It is compact and lightweight, equipped with convenient handheld operating components. It requires no fixed installation and can be flexibly moved to various locations, making it ideal for conveying small batches of oat flour over short distances.
As a specialized food-grade powder conveying device, the Oat Flour Screw Conveyor offers significant advantages. It is made of food-grade stainless steel and other materials, meeting hygiene standards and preventing material contamination and residue. Customization is also available.
Enclosed Conveying: A fully enclosed trough design effectively prevents dust leakage during oat flour conveying. In actual use at an oat flour processing plant, this design has reduced dust concentration in the workshop by 80%.
Flexible Layout: Supports horizontal, vertical, and combined conveying modes. For example, in an oat flour packaging line, a variable-diameter screw design enables vertical lifting from a floor silo to a three-tiered packaging platform.
Low Energy Consumption and Maintenance Costs: Compared to pneumatic conveying systems, screw conveyors consume 30% less energy and 45% less maintenance than belt conveyors.
Multifunctional Integration: The paddle-type screw conveyor can simultaneously perform stirring, mixing, and cooling processes while conveying oat flour.
The Oat Flour Screw Conveyor's structure is designed around food-grade conveying requirements, with each component precisely coordinated. The core consists of a drive unit, screw shaft and blades, trough, inlet and outlet ports, and supporting components.
Drive: Utilizes a cycloidal pinwheel reducer and motor combination, with a power range of 0.5-200kW and an adjustable speed of 15-60 r/min, adapting to the conveying needs of oat flour of varying particle sizes and viscosities.
Screw Shaft and Blades: Shaftless and oil-residue-free, depending on the material properties. Blades are made of 304 stainless steel or food-grade polymer, with a thickness of 4-8mm, ensuring that the parts that come into contact with the oat flour meet hygiene standards.
Trough: 6-10mm thick, equipped with a removable cover and dust seal, and an inner diameter slightly larger than the screw diameter to reduce wear.
Feed and Discharge: Supports multiple feeding and unloading points. The discharge port can be equipped with a flow sensor to achieve ±2% accuracy control of conveying volume.
The operating principle of the oat flour screw conveyor is based on the synergistic effect of the spiral blade's rotational propulsion and the mechanical properties of the material. When the drive rotates the screw shaft, the spiral blades fixed to the shaft generate friction with the oat flour, causing the powder layer closest to the blades to rotate with the shaft. The outer layer of powder forms a stationary layer due to friction with the inner wall of the trough, resulting in relative sliding. As the spiral blades continue to rotate, the powder moves forward along the axial direction in a spiral trajectory, ultimately being discharged from the discharge port.
| LS type | 100 | 160 | 200 | 250 | 315 | 400 | 500 | 630 | 800 | 1000 | 1250 |
| GX type | 200 | 250 | 300 | 400 | 500 | ||||||
| Spiral diameter (mm) | 100 | 160 | 200 | 250 | 315 | 400 | 500 | 630 | 800 | 1000 | 1250 |
| Pitch (mm) | 100 | 160 | 200 | 250 | 315 | 355 | 400 | 450 | 500 | 560 | 630 |
| Speed (r/min) | 140 | 120 | 90 | 90 | 75 | 75 | 60 | 60 | 45 | 35 | 30 |
| Delivery capacity QΦ=0.33 (m³/h) | 2.2 | 7.6 | 11 | 22 | 36.4 | 66.1 | 93.1 | 160 | 223 | 304 | 458 |
| 功率Pd 1=10m（KW） | 1.1 | 1.5 | 2.2 | 2.4 | 3.2 | 5.1 | 4.1 | 8.6 | 12 | 16 | 24.4 |
| Power Pd 1=30m (KW) | 1.6 | 2.8 | 3.2 | 5.3 | 8.4 | 11 | 15.3 | 25.9 | 36 | 48 | 73.3 |
| Speed (r/min) | 120 | 90 | 75 | 75 | 60 | 60 | 45 | 45 | 35 | 30 | 20 |
| Delivery capacity QΦ=0.33 (m³/h) | 1.9 | 5.7 | 18 | 18 | 29.1 | 52.9 | 69.8 | 125 | 174 | 261 | 305 |
| Power Pd 1=10m (KW) | 1.0 | 1.3 | 2.1 | 2.1 | 2.9 | 4.1 | 4.7 | 6.8 | 9.4 | 14.1 | 16.5 |
| Power Pd 1=30m (KW) | 1.5 | 2.3 | 4.5 | 4.5 | 7 | 8.9 | 11.6 | 20.4 | 28.3 | 42.2 | 49.5 |
| Speed (r/min) | 90 | 75 | 60 | 60 | 45 | 45 | 35 | 35 | 30 | 20 | 16 |
| Delivery capacity QΦ=0.33 (m³/h) | 1.4 | 4.8 | 15 | 15 | 21.8 | 39.6 | 54.3 | 97 | 149 | 174 | 244 |
| Power Pd 1=10m (KW) | 0.9 | 1.2 | 1.9 | 1.9 | 2.5 | 3.4 | 4.3 | 5.4 | 8.1 | 9.5 | 13.3 |
| Power Pd 1=30m (KW) | 1.2 | 2.2 | 3.8 | 3.8 | 5.4 | 6.8 | 9.2 | 16 | 24.4 | 28.6 | 39.9 |
| Speed (r/min) | 75 | 60 | 45 | 45 | 35 | 35 | 30 | 30 | 20 | 16 | 13 |
| Delivery capacity QΦ=0.33 (m³/h) | 1.2 | 3.8 | 11 | 11 | 17 | 31.7 | 46.5 | 73.0 | 99.3 | 139 | 199 |
| Power Pd 1=10m (KW) | 0.75 | 1.1 | 1.6 | 1.6 | 2.1 | 3.1 | 3.7 | 4.6 | 5.7 | 7.7 | 11 |
| Power Pd 1=30m (KW) | 1.1 | 1.8 | 3.4 | 3.4 | 4.4 | 5.6 | 8 | 14 | 16.7 | 23.2 | 33 |
The Oat Flour Screw Conveyor, with its closed conveying system, flexible layout, and high efficiency and stability, is widely used in various scenarios in oat flour processing and related industries.
Raw material pre-processing and storage: Oat granules are precisely delivered from the raw material silo to the grinder via a screw conveyor, replacing manual handling to reduce dust pollution and improve efficiency. In large-scale factories, a multi-bin linkage system can connect multiple raw material silos and mixing equipment to achieve precise proportioning of different raw material batches.
Core Processing and Production: During the oat flour processing stage, screw conveyors are deeply integrated into key processes. After pulverization, a variable-diameter screw design steadily conveys fine powder to the screening equipment, reducing material accumulation. Paddle screw conveyors simultaneously inject steam or additives during conveying to ensure uniform conditioning.
Packaging: Screw conveyors optimize packaging and logistics efficiency. A vertical elevator system efficiently lifts oat flour from floor silos to the multi-layer packaging line, eliminating the blockage and dust problems of traditional elevators. A multi-point distribution system uses branching screw conveyors to flexibly distribute material to multiple packaging machines, accommodating small-batch production needs.
Our oat flour screw conveyors offer conveying angles of 0-90° and can be customized to meet customer production requirements. Generally, shaft-tube screw conveyors have a maximum inclination angle of approximately 45°, and vertical conveying is possible in special circumstances. Shaftless screw conveyors typically have a maximum inclination angle of approximately 30°. The inclination angle of a U-shaped screw conveyor is generally between 20° and 30°.
Stainless steel is recommended for oat flour screw conveyors. Stainless steel offers excellent corrosion resistance, effectively resisting corrosion from trace moisture, acids, and detergents that may be present in oat flour, extending the life of the equipment. Its smooth surface reduces material adhesion and the risk of residue, ensuring hygienic oat flour conveying. It also meets food-grade standards. Furthermore, stainless steel is strong and easy to clean and maintain, offering stable performance in humid environments or those requiring frequent washdowns. It is an ideal choice for ensuring oat flour conveying quality and production safety.
Selecting the right oat flour screw conveyor requires a comprehensive consideration of multiple factors, focusing on material characteristics and production requirements. Consider the material first, then the structure. Finally, consider the diameter and conveying capacity based on production capacity.
Material Selection: 304 or 316L stainless steel is preferred for its corrosion resistance, smooth surface, and food-grade properties. It prevents oat flour contamination and reduces residue, making it suitable for food contact processes from raw material silos to packaging lines.
Structure Type: Shafted screw conveyors are suitable for dry oat flour with good fluidity. The central shaft enhances conveying stability and is suitable for horizontal or low-angle applications of ≤20°. Shaftless screw conveyors are suitable for oat flour with a moisture content of 12%-15% or prone to clumping. The lack of a central shaft reduces adhesion. Vertical screw conveyors are used for 90-degree elevation from floor silos to high-rise packaging lines and require a high-power motor and variable-diameter screw design.
Parameter Matching: The screw diameter is selected based on the conveying capacity, with 100-400mm being the most common range. 200mm is an option for small production lines, and 400mm is suitable for large factories. The speed is controlled between 15-60r/min to prevent material breakage and dust.
The price of an oat flour screw conveyor is influenced by multiple factors, including equipment type, material, specifications, and customization requirements. Our quotes start at $1,500. As food-grade conveying equipment, material is a key factor influencing price. Models made of 304 stainless steel are more expensive than standard carbon steel models due to their hygienic, corrosion-resistant, and easy-to-clean design. Regarding specifications, longer conveying lengths and larger screw diameters require higher-power motors, leading to higher prices. Furthermore, tubular models are slightly more expensive than U-shaped models due to their enhanced sealing. Equipment with customized features like variable speed control and explosion-proof technology also carries higher prices due to increased processing costs.
Dahan Machinery specializes in providing high-hygiene and high-stability screw conveying solutions for oat processing companies. We utilize 304/316L stainless steel and offer a variety of designs, including shaftless, shafted, and vertical conveying, to precisely meet the conveying needs of both dry and wet oat flour. Equipped with an intelligent speed control system and modular structure, the product supports operation over long distances, at high angles, and in low-temperature environments. It currently serves numerous companies worldwide, offering one-stop services from selection to after-sales service, helping customers improve production efficiency and food safety.
As a key piece of equipment in the food processing industry, the Oat Flour Screw Conveyor's precise matching of materials, structure, and parameters directly determines conveying efficiency and food safety. 304/316L stainless steel ensures corrosion resistance and hygienic standards, while shaftless, shafted, or vertical configurations can be flexibly customized based on material characteristics.
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