Unitfine Machinery

Granulators/Granulating Machine

Unitfine Machinery

Laboratory Sieves

Fine Screw Conveyor


Several industrial sectors make use of Screw Conveyors in their production and manufacturing processes. One can effectively convey a wide variety of bulk materials over small distances thanks to the Screw Conveyors. Also known as Augers, such sealed machines enable users to move small-sized or fine-grained materials in bulk. This type of machinery is among the six simple equipment that people have been using for many years now.

Unitfine Screw Conveyors are made from top quality stainless steel with a mirror-polished finish. The screw blade itself is carbon steel. These come in different types which range from built and function. There are simple augers set in a trough while others tend to be a part of a more complex material handling apparatus

The working principle of a screw conveyor involves the following steps:

Material Intake: Material is loaded into the inlet of the screw conveyor. This can be done manually or through a feeder system.

Screw Rotation: When the motor is activated, it causes the screw to rotate. As the screw turns, the helical flighting creates a continuous spiral path along its length.

Material Conveyance: The rotating screw captures and lifts the material from the inlet. As the screw continues to rotate, the material is pushed forward along the trough or casing of the conveyor.

Discharge: When the material reaches the outlet, it is discharged from the conveyor and can be directed to a storage container, another conveyor, or a processing unit.

The key to the efficiency of a screw conveyor lies in the design of the screw’s pitch (the distance between each flight of the helix), the speed of rotation, and the size and shape of the trough or casing. These factors are carefully chosen to ensure that the material is conveyed effectively with minimal spillage and degradation. Screw conveyors are versatile and can be designed to handle a wide range of materials and applications.

Main Features of a UnitFine Screw Conveyor

  • Cost-effective, inexpensive to purchase
  • Easy to install, easy to disassemble
  • Fast and effortless to clean
  • Virtually maintenance-free
  • Airtight and dust-tight, guaranteed contamination-free
  • Easy to operate
  • Comes in two designs – portable and stationery

Fabrication Process of Screw Conveyors
The fabrication process involves six main steps.

  • Pipe cutting
  • Flange measuring
  • Screw blade making
  • Carbon steel screw blade welding
  • Shaft processing
  • Assembly

Design Considerations

Screw Conveyors serve different purposes. It is the very reason why one needs to consider the design when choosing an auger. Selecting the design with your needs in mind will ensure that you will achieve optimal performance for every use. To help you find the perfect screw conveyor, here are some of the things you need to consider.

  • The types of materials you wish to convey in the auger
  • The desired volume of materials
  • The density of the materials in pounds per square inch
  • The distance and speed you need to carry
  • The properties of the material you wish to convey (for example, viscosity, corrosiveness or abrasiveness)
  • Feed and discharge positions
  • Length of the trough
  • Gear motor brand requirements, be it domestic or imported

Knowing the answers to the list below can help you find the ideal screw conveyor to meet your demands. Unitfine will then design the auger with the appropriate motor and metal according to its pitcher, length, trough and diameter requirements

unitfine screw conveyor (3)

Screw conveyors have a wide range of applications across various industries due to their versatility and efficiency in material handling. Some common applications of screw conveyors include:

  1. Agriculture: Screw conveyors are used for transporting grains, seeds, and other agricultural products within farming and processing operations.
  2. Food Processing: They are employed in the food industry for moving ingredients, powders, and bulk materials during the production of food products.
  3. Mining: Screw conveyors are used in mining operations to transport ores, minerals, and other materials from one point to another, such as from a mine to a processing facility.
  4. Chemical Industry: They handle various chemicals, powders, and granules in chemical manufacturing processes.
  5. Wastewater Treatment: Screw conveyors are used to transport and dewater sludge and other waste materials in wastewater treatment plants.
  6. Construction: In construction sites, they can move materials like sand, cement, and concrete to different parts of the construction area.
  7. Bulk Material Handling: Screw conveyors are commonly used in bulk material handling systems, including those in cement plants, power plants, and recycling facilities.
  8. Packaging: They assist in moving and filling materials into packaging machines for various consumer products.
  9. Wood Processing: Screw conveyors are used in sawmills and woodworking operations to transport wood chips, sawdust, and other wood byproducts.
  10. Chemical Processing: They handle materials in chemical processing plants, including transporting, mixing, and blending various chemicals.
  11. Plastics Manufacturing: Screw conveyors are utilized in plastic manufacturing processes to move and mix plastic resins and compounds.
  12. Pharmaceuticals: They play a role in pharmaceutical manufacturing by transporting powders and granules for drug production.
  13. Aggregate and Mining: In addition to mining, they are used in the aggregate industry to transport sand, gravel, and crushed stone.
  14. Environmental Remediation: Screw conveyors are used in environmental cleanup projects to move and process contaminated soil and materials.
  15. Energy and Utilities: They handle materials like coal, biomass, and ash in power plants and other energy-related facilities.

These are just some examples, and the versatility of screw conveyors makes them suitable for many other applications where bulk material handling and transportation are required. The design and specifications of a screw conveyor can be customized to meet the specific needs of each application


Model UFTC-100 UFTC-300 UFTC-1000 UFTC-1500 UFTC-2000 UFTC-3000
Main Motor Power (KW) 1.5 1.5 1.5KW-6 2.2 3 3KW-6
Products Pushing Motor(KW) N/A N/A 0.55 N/A N/A 0.55
Tube Diameter(MM) 89 102 114 141 159 159
Screw Speed(RPM) 360 360 360 360 360 360
Conveying Height(MM) 1900 1900 2500 2800 2800 2800
Capacity(kg/h) 50-100 200-300 1000 1000-1500 1000-2000 2500-3000
Control Type Adjustable Accel/Decel Adjustable Accel/Decel Adjustable Accel/Decel Adjustable Accel/Decel Adjustable Accel/Decel Adjustable Accel/Decel
Loading Hopper Dimension
700*700*900 700*700*900 700*700*900 1000*700*1000 1000*700*1000 1000*700*1000


  1. Versatile: Handles various materials.
  2. Efficient: Minimal spillage and degradation.
  3. Simple: Easy to operate and maintain.
  4. Cost-effective: Low operating costs.
  5. Customizable: Tailored to specific needs.
  6. Compact: Fits into tight spaces.
  7. Reliable: Long service life with low maintenance.
  8. Environmentally friendly: Can be enclosed for dust control.
  9. Energy-efficient: Can use variable speed drives.
  10. Safe: With proper safety precautions.

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