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Screw Conveyors

Used Screw Conveyors for Sale

View a range of used Screw Conveyors for sale from Revelation Machinery, here. We look forward to assisting you to find the equipment for your needs. If you don’t find the screw conveyor you are looking for, please contact us!

Revelation Machinery can always help you find what you need!  If you have any questions about screw conveyors or need to find a specific brand/type, please feel free to contact us!  If you need to sell your used screw conveyor, do so here!

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A screw conveyor is a mechanism that moves materials horizontally or at an inclined angle by rotating a helical screw blade inside a tube or trough. The screw blade is typically driven by an electric motor, and as it rotates, it moves the material along the length of the tube or trough. Commonly used in industrial applications to move various types of bulk materials, such as powders, grains, or granular materials, screw conveyors are often used for applications such as mixing, blending and transporting materials from one point to another.

 

Common Uses of Screw Conveyors

As versatile machines, screw conveyors are used in various industries to move materials horizontally or at an inclined angle including:

-Material Handling: Used for material handling tasks in agriculture, food processing, mining, and chemical processing industries, screw conveyors can move a wide range of materials, including powders, grains, and granular materials.

-Mixing and Blending: In industries where mixing or blending of materials is required, screw conveyors can be used to move the materials between processing stations. By adjusting the speed and direction of the screw conveyor, the materials can be mixed or blended to a desired consistency.

-Waste Water Treatment: Screw conveyors are used in waste water treatment plants to move sludge and other waste materials from the treatment process to the disposal area.

-Cooling and Heating: In some industries, screw conveyors are used to cool or heat materials as they are being transported.

-Dosing and Feeding: Screw conveyors can be used for precise dosing and feeding of materials. By adjusting the speed and flow rate of the screw conveyor, materials can be delivered at a controlled rate to downstream processing equipment.

 

Advantages of Screw Conveyors

Screw conveyors offer several advantages over other types of material handling equipment, including:

  • Versatility: As versatile machines, screw conveyors can be used to move a wide range of materials, including powders, granular materials, and sticky or viscous materials.
  • Efficiency: Screw conveyors are an efficient way to move materials over long distances or at high flow rates. They can also be designed to operate at a wide range of speeds, allowing for precise control over the flow of materials.
  • Minimal Maintenance: Screw conveyors are relatively simple machines that require minimal maintenance. They have few moving parts, which reduces the likelihood of mechanical failure or breakdowns.
  • Flexibility: Screw conveyors can be customized to meet the specific needs of a particular application. 
  • Space-Saving: Screw conveyors are compact machines that can be installed in tight spaces, making them ideal for use in plants or facilities with limited floor space.
  • Cost-Effective: Screw conveyors are typically more cost-effective than other types of material handling equipment, such as bucket elevators or pneumatic conveyors. They are also energy-efficient, requiring less power to operate than some other types of equipment.

 

Factors to Consider When Purchasing Used Screw Conveyors

When purchasing a screw conveyor, there are several important factors that should be considered, including:

  • Material Characteristics: The type of material being handled is one of the most important factors to consider when selecting a screw conveyor. The material’s physical properties, such as size, shape, density, and flowability, will affect the design of the screw conveyor.
  • Capacity and Flow Rate: The capacity and flow rate required for the application will also be an important consideration. The screw conveyor must be sized correctly to handle the required flow rate and ensure that the material is moved efficiently and effectively.
  • Length and Incline: The length and incline of the screw conveyor will also affect the design. Longer or more inclined conveyors may require more powerful motors or additional support structures.
  • Environment and Application: The environment and application in which the screw conveyor will be used should also be considered. For example, if the conveyor will be used in a corrosive environment, it may need to be made from corrosion-resistant materials.
  • Maintenance and Service: The ease of maintenance and availability of service and support should also be considered when selecting a screw conveyor. It’s important to choose a reliable supplier who can provide maintenance and repair services when needed.
  • Cost: It is important to balance the cost of the conveyor with its performance, durability, and reliability to ensure that the investment is cost-effective over the long term.

 

Screw Conveyor Alternative Names

Screw conveyors are sometimes referred to by alternative names, depending on the industry or application. Some common alternative names for screw conveyors include:

  • Auger conveyors
  • Spiral conveyors
  • Helix conveyors
  • Worm conveyors
  • Shaftless screw conveyors
  • Flexible screw conveyors
  • Paddle conveyors (for conveyors with paddles attached to the screw blade)
  • Ribbon conveyors (for conveyors with flat, ribbon-like blades)
  • Flight conveyors (for conveyors with thicker, U-shaped blades)
  • Archimedes’ screw conveyors (in reference to the ancient Greek inventor who first used this type of mechanism)

While there may be slight differences in the design and configuration of screw conveyors with these different names, they all generally function in the same basic way and are used for similar applications.
 
 

Types of Screw Conveyors

There are several different types of screw conveyors, each designed for specific applications and material handling requirements including: 

  • Horizontal Screw Conveyors: Used to move materials horizontally from one point to another, this is the most common type of screw conveyor. The trough of the conveyor is typically U-shaped and can be made of various materials such as stainless steel or carbon steel.
  • Vertical Screw Conveyors: Used to move materials vertically, typically from an intake point at the bottom to a discharge point at the top, the screw is typically housed in a tube, and the angle of inclination can be adjusted to suit the specific application.
  • Inclined Screw Conveyors: Used to move materials at an inclined angle, typically between 15 and 45 degrees, the screw can be configured in various ways to provide the necessary lift, including using a larger diameter screw or adding paddles to the screw blade.
  • Shaftless Screw Conveyors: This type of screw conveyor does not have a central shaft, and is designed for handling difficult-to-convey materials, such as sticky or fibrous materials.
  • Flexible Screw Conveyors: This type is designed with a flexible, spring-like auger that can be bent to fit around obstacles and other equipment.
  • Paddle Screw Conveyors: Has paddles attached to the screw blade to provide additional mixing and agitation of the material being conveyed.
  • Ribbon Screw Conveyors: Has a flat, ribbon-like blade that is used for moving cohesive or sticky materials.

 

 

Screw Conveyors & Material Handling

Screw conveyors are versatile and can handle a wide variety of materials, including:

  • Powders such as flour, sugar, and cement
  • Granular materials such as seeds, grains, and fertilizers
  • Sticky materials such as adhesives and pastes
  • Fibrous materials such as hay and wood chips
  • Wet materials such as sludge and slurries
  • Abrasive materials such as sand and gravel
  • High-temperature materials such as ash and hot metal
  • Hazardous materials such as chemicals and explosives

 

 

A screw conveyor is a reliable and efficient material handling solution that can save time and money in many industries. By automating the transportation of materials, a screw conveyor can improve production speed and efficiency while reducing labor costs and minimizing material waste. With the ability to handle a wide range of materials, a screw conveyor is a versatile investment that can provide long-term benefits for any business.

 

Revelation Machinery can always help you find what you need! If you have any questions about screw conveyors or need to find a specific brand/type, please feel free to contact our machinery experts. Interested in selling your equipment? Learn just how easy it is to sell your used industrial screw conveyor to Revelation Machinery today.