Screw conveyor


The screw conveyor has the advantages of small section size, good sealing performance, stable and reliable operation, multi-point loading and unloading in the middle and simple operation and maintenance


Screw conveyor is suitable for chemical industry, electric power, metallurgy and other industries.

NAR Automation engineering can provide customers with customized product solutions,Including equipment installation, debugging, training, etc. If you need equipmentmaintenance, we will provide you with quality after-sales service.


Components of Screw Conveyor

  • Conveying screw
  • Groove
  • inlet
  • outlet
  • driving device
  • coupling
  • Electric motor

Classification of screw conveyors

  • Horizontal screw conveyor: Horizontal screw conveyors is the most common type of conveyor, which can use multiple inlet feeding and unloading point conveying the materials to the required location in a wide range.
  • Inclined screw conveyor: The inclined screw conveyors is mainly used to conveying materials in an inclined route. In this way, no additional equipment is required to send materials to the high point for conveying.
  • Vertical screw conveyor: The vertical screw conveyor systems conveying bulk materials on vertical paths and very steep slopes, which with an inclination angle of 45 degrees higher than the horizontal plane. They are also space and cost-effective in transporting bulk materials.

Screw Conveyor Characteristics

  • Suitable for short-distance and small-yield material transportation, and suitable for working conditions such as limited installation space or requiring precise control of output;
  • The structure is relatively simple, the work is reliable, and the cost is low.
  • Compact size, small section size, and small floor space. It is easy to get in and out of hatches and carriages during unloading operations.
  • Sealed transportation can be realized, which is conducive to the transportation of flying, hot and strong-smelling materials, which can reduce environmental pollution and improve workers’ working conditions.
  • Convenient loading and unloading: the horizontal screw conveyor can be loaded and unloaded at any point on the conveying line.
  • The vertical screw conveyor system can be equipped with a relatively screw-type reclaiming device to have excellent reclaiming performance.
  • Modular design, safe and convenient to replace accessories.

Screw Conveyor Optional configuration

  • Shaft screw conveyor: suitable for non viscous dry powder materials and small particle materials
  • Shaftless screw conveyor: suitable for viscous and winding materials


Widely used in grain and oil, feed, fertilizer, mining, ports, power plants and many other industries.


  • Spiral pipe noise or abnormal sound
    • Cause: inner wall of spiral mandrel scraper tube; The middle hanging shaft is broken
    • Measures: adjust the coaxiality of the mandrel and replace the bearing of the same model; Replace the middle suspension shaft
  • Noise or abnormal noise of reducer
    • Cause of bearing damage: Dirty or insufficient lubricating oil
    • Measures: replace bearings of the same model; Replace the lubrication and replenish it to 2 / 3 of the oil mirror
  • Oil leakage of reduction gearbox
    • Cause: the shaft end seal is damaged
    • Measure: replace the shaft end seal

Advantages of our machining service

  • Competitive price and quality from our own factory
  • Approved by ISO9001, CE, SGS every year
  • Best service with 24 hour`s reply
  • Flexible payment with T/T,L/C , paypal, kunlun bank, etc
  • Smooth production ability
  • Quick delivery and standard exporting package


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