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Shaftless Screw Conveyor

No central shaft design to prevent material clogging and entanglement, the conveying capacity is 1.5 times that of the shaft screw conveyor, special equipment for kitchen waste, domestic waste, and sludge.

Price:$650.00-$3,560.00/Set Chat Now

Delivery capacity: 458 m³/h

Length: 40~70 meters

Speed: 13~140 rpm

Torque: 4000N/m

Materials: sludge, cement, domestic waste, kitchen waste, concrete, clay

Shaftless Screw Conveyor

What is a Shaftless Screw Conveyor?

Shaftless Screw Conveyor is designed without a central shaft, which can transport materials that are difficult to convey by ordinary screw conveyors, such as wet, pasty materials, semi-fluid, viscous materials, easy to entangle and easy to block, and the conveying capacity can reach 458 cubic meters. It is a shaft screw 1.5 times that of the conveyor, it is a special equipment for kitchen waste, domestic garbage, and sludge. The shaftless screw conveyor is generally arranged horizontally, and can also be placed at an angle (the angle of inclination does not exceed 45°), and the conveying length of a single machine can reach 60 meters.

Description of Shaftless Screw Conveyor

Shaftless Screw Conveyor Videos

Conveying Sediment

Conveying Silt

Conveying Sludge

conveying Concrete

Shaftless Screw Conveyor Application

Shaftless screw conveyor can convey wet and pasty materials, semi-fluid and viscous materials, easily entangled and easily clogged materials, materials with special hygienic requirements, such as: sludge, cement, mud, domestic garbage, kitchen waste, concrete , clay, etc.

Shaftless Screw Conveyor Solution

  • Sewage treatment plant

    The dehydrated sludge cake is transported to the sludge transport vehicle through the sludge Shaftless Screw Conveyor, and transported to the sludge landfill for landfill treatment

    Delivery capacity: 20 tons/hour

    Conveying length: 3 meters

    Recommended: WLS160

    Advantage: ①The sludge has many impurities and strong viscosity. The shaftless design can effectively prevent material clogging; ②The material is polluting, and the fully enclosed conveying method can reduce material leakage.

    point: When the moisture content of the material is greater than 80%, the conveying inclination should be ≤25°

  • Garbage disposal station

    It is used for the treatment and transmission of kitchen waste or domestic waste generated in household kitchens, restaurants, restaurants, canteens, markets and other industries

    Delivery capacity: 26 tons/hour

    Conveying length: 4 meters

    Recommended: WLS315

    Advantage: ① There are many impurities in the garbage, which can eliminate the blockage caused by winding during the transportation process. ②It is easy to produce leachate, and the smell will overflow. The fully enclosed and easy-to-clean spiral surface can prevent pollution.

    point: Garbage is perishable and must be made of stainless steel

  • concrete mixing plant

    Cement or dry powder is directly fed into the mixing host through the pan feeder and screw conveyor on the metering bin

    Delivery capacity: 30 tons/hour

    Conveying length: 12 meters

    Recommended: WLS400

    Advantage: ①The equipment can complete conveying, mixing, stirring, loosening and other processes, which can prevent blockage caused by agglomeration. ②The conveying length of a single machine is up to 60 meters, which can be arranged horizontally or inclined according to the site.

    point: Powder materials such as cement are conveyed in a sealed manner to avoid environmental pollution and damp materials

  • industrial waste

    Slag, fly ash, incineration fly ash and other materials are stirred and conveyed in the conveying tank according to the proportion until they are sent to the next process

    Delivery capacity: 1 ton/hour

    Conveying length: 4 meters (angle 20°)

    Recommended: WLS200

    Advantage:It adopts a fully enclosed structure, which can reduce dust pollution during the conveying process, and can be used in conjunction with other conveying devices to complete collection, distribution, mixing, mixing, dehydration, batching, stacking, etc.

    point: There are horizontal, inclined and combined forms, and can be used in conjunction with other devices

Shaftless Screw Conveyor Classification

Spiral Classification

Single and double shaftless

Single Shaftless Screw Conveyor—Consists of 1 screw, without mixing function.

Double Shaftless Screw Conveyor—composed of two spirals, the spiral blades rotate in opposite directions, and the conveying capacity is 1.5-2 times that of a single spiral, and can simultaneously perform functions such as conveying, mixing, and stirring.

Material Classification

Carbon Steel and Stainless Steel Shaftless Screw Conveyors

Carbon steel Shaftless Screw Conveyor—Made of carbon steel, suitable for conveying common materials, mainly used in cement, coal, stone and other industries with high wear and no special requirements.

Stainless steel Shaftless Screw Conveyor—304/316 stainless steel material, corrosion resistance, high temperature resistance, not easy to rust, special for food and pharmaceutical industries. Mainly used in grain, chemical, food and other industries that have requirements on the conveying environment. High cleanliness, no contamination of materials.

Shape Classification

Tubular and U-shaped Shaftless Screw Conveyors

Tubular Shaftless Screw Conveyor: Made of seamless steel pipe, good sealing

U-shaped Shaftless Screw Conveyor: Small range/small distance conveying, dust cover is removable

What is the Advantage of Shaftless Screw Conveyor?

Strong anti-winding: no central shaft design, can convey belt-shaped, viscous materials, easy-to-wind materials, and avoid material clogging.

Large conveying capacity: the torque of the shaftless screw conveyor can reach 4000N/m, and the conveying capacity is 1.5 times that of the shafted one, reaching 458 cubic meters per hour.

Flexible layout: the conveying length of a single machine can reach 60 meters, and multi-stage series installation can be adopted according to user needs.

Sealed conveying: The tank cover with gasket can avoid material leakage, no peculiar smell leakage, and ensure the sanitation of the conveying environment.

How does the Shaftless Screw Conveyor work?

The Shaftless screw conveyor is driven by the motor to run the cycloidal reducer, and the screw is rotated by the transmission of the mechanical seal shaft and the connecting plate on the shaftless screw body. When the material enters the feeding port, it is driven forward by the screw blade. Move until the outlet discharges.

Shaftless Screw Conveyor Specifications

Model WLS150 WLS200 WLS250 WLS300 WLS400 WLS500
Spiral diameter(mm) 150 184 237 284 365 470
Outer diameter(mm) 180 219 273 351 402 500
Incline degree(a) 0 °-30 ° 0 °-30 ° 0 °-30 ° 0 °-30 ° 0 °-30 ° 0 °-30 °
Max Length(m) 12 13 16 18 22 25
Capacity(t/h) 2.4 7 9 13 18 28
Motor Model L ≤ 7 Y90L-4 Y100L1-4 Y100L2-4 Y132S-4 Y160M-4 Y160M-4
Power kW L ≤ 7 1.5 2.2 3 5.5 11 11
Model L>7 Y100L1-4 Y100L2-4 Y112M-4 Y132M-4 Y160L-4 Y160L-4
Power kW L>7 2.2 3 4 7.5 15 15Notes : The parameter above is just for reference, Model please inquiry us directly. We accept customization.

Shaftless vs Shafted Screw Conveyor

Difference between Shaftless vs Shafted Screw Conveyor

Different shapes

The difference is mainly in the blades. The shaftless screw conveyor blades are designed without a central shaft, which is anti-winding.

Conveying different materials

Shaftless screw conveyor is suitable for conveying wet and pasty materials such as sludge, garbage, lime, semi-fluid and viscous materials, materials that are easy to entangle and block or have special hygienic requirements.

Shafted screw conveyor materials are suitable for powder materials, small particle materials, etc. If viscous materials are conveyed, the materials will stick to the blades and cause material blocking.

Different delivery angles

The Shaftless screw conveyor is generally conveyed horizontally, and the maximum inclination angle generally does not exceed 20° (according to actual usage conditions). Shafted screw conveyors can be arranged horizontally, inclined or vertically.

Shaftless Screw Conveyor Installation

installation method

Installation method: The company can provide hanging type according to needs; ground and hanging mixed type; mobile type, rotary type and turret type that can rotate around the axis of the feed inlet.

Shaftless Screw Conveyor Manufacturer

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