Screw Conveyor

Screw conveyor according to the conveying form is divided into shaft screw conveyor and shaftless screw conveyor. According to the appearance, it is divided into U shape screw conveyor and tube type screw conveyor. Shaft screw conveyor is suitable for the non-sticky powder material and small particle material such as cement, fly ash, lime, food, etc. Shaftless screw conveyor is suitable for conveying sticky and easy-winding materials such as sludge, biomass, litter, fibers, etc.

Product Overview

Conveying Distance ≤30m
Conveying Capacity 100m³/h
Application Industry uitable for various industries such as building materials, chemical industry, electric power, metallurgy, coal mining and food etc. (For more, please click “Free Consultation”)
Applicable Materials  Applicable for conveying powder, granules and small lump materials block in horizontal or oblique such as cement, fly ash, pesticides, titanium dioxide, paint, etc. The material temperature is less than 200 ℃. Screw conveyor is not suitable for transportation of perishable, high viscosity, or easy to agglomerate materials.

Working Principle

When the screw shaft is rotating, due to the gravity of the material and the friction between the materials and the wall, it makes the material moving forward along the conveyor bottom under the push of the blade. It looks like an un-rotatable nut does translational movement along the rotating screw. The materials movement at the mid bearing is pushed by the moving-forward materials from back. Therefore, the materials delivery inside the conveyor is like a kind of slip movement. To have the screw shaft under better pulled state, normally have the motor and discharging port at same side of the screw conveyor. And have the outlet at the other end of screw. The screw blade push the materials to realize materials-delivery. Because of the materials gravity and also the friction between the materials and shell, the materials will not rotate together with the screw. The screw blade surface type according to the to-be-conveyed materials, it can be: entity type, belt type, and leaf surface type. The screw shaft of the Screw Conveyor is with thrust bearing at the end of the materials moving direction to give the screw shaft reverse force together with the materials. When it is comparatively long, then mid hanging bearing is required.

Product Advantages

  • High efficiency conveying
    Adopt new hanging type with bearing frame hanging in the middle to increase the delivery space for materials and also reduce the resistance of logistics. Together with small diameter, high rotation speed, changed screw pitch to ensure smooth, fast and uniform feeding.
    rotation speed, changed screw pitch to ensure smooth, fast and uniform feeding.
  • Casually arrangement
    he shell is made of high quality seamless steel tube, each section is connected by the flanges and become a whole piece. No matter it is horizontal one or inclined one, it can deliver materials continuously. It can connected and fixed with the auxiliary device and no need for foundation. Taking fully use of space, can be removed and disassembled easily.
  • Diversified connection
    Inlet and discharging port can use flange connection, cloth connection, cloth with derrick connection, universal interface connections, and other forms.
  • Reliable sealing
    The joint of casing tube is with the seepage water device, process hole has carefully improved to avoid materials blocked or machine stops due to the cement agglomerate inside the tube resulting in rain infiltration.

Technical Parameter

Model Screw diameter

(mm)

Speed

(rpm)

Conveying Capacity

(T/h)

Conveying Distance

(m)

Installation Angle

(°)

Power

(KW)

Weight

(Kg)

STLS-102 Φ102 120 0~1 0.5~2 0~30 0.75~1.5 100~300
STLS--159 Φ159 120 3~5 1~8 0~45 3~5.5 400~800
STLS--219 Φ219 120 5~15 1~12 0~45 4~11 500~1000
STLS--273 Φ273 120 10~15 1~12 0~45 5.5~15 600~1200
STLS--325 Φ325 100 30-100 1~12 0~45 11~30 600~1800
STLS-219 U219 50 0-5 1~12 0~10 1.1~4 500~1000
STLS-273 U273 50 5~10 1~15 0~10 3~5.5 600~1500
STLS-300 U300 50 10~20 1~20 0~10 4~11 600~1500
STLS-400 U400 50 15~40 1~30 0~10 5.5~18.5 800~2000

* The capacity is data based on powder with specific gravity 1g/cm3. The model selection shall be based on the data such as the materials mesh, specific gravity etc.

* Special operation condition, such as high temperature, high pressure, explosive, combustible and corrosive etc., details are required for correct model selection.

* If any change in the above table, subject shall prevail without notice.

* The table cannot include all products, please contact with our sales engineers for more information.

Contact Information

  • Office

    Rm. 305-307, Building 1, No. 168 Taihong Rd.,
    Hongqiao Business District, Shanghai China

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  • Factory

    Block D2, D5 Intelligent Industry Park, No. 2777 WanfengRd,
    Jinshan District, Shanghai, China

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  • Tel

    +86 21 52913185 / 52913186

  • Fax

    +86 21 52912822

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