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Shaftless Screw Conveyor

Applicable materials:looser, viscous, and easily entangled materials, conveying materials up to 100 °C.

Processing capacity: 1.9-199 cubic meters

Feed size: no limit

Speed:20-120 (r/min)

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Shaftless Screw Conveyor
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Leading-in

The shaftless screw conveyor adopts the design of non-central axis. It can be driven by the integral steel screw with certain flexibility. It can be used in a multi-purpose machine. It can be used for discharging below and discharging at the end. The conveying capacity is strong. Dahan shaftless screw conveyor is made of carbon steel and stainless steel. Users need to choose according to the characteristics of screening materials. This series of screw conveyors is very suitable for conveying belt-shaped and easy-wound materials because there is no central axis interference.

Application scope of shaftless screw conveyor 

Shaftless screw conveyor is mainly used in building materials, chemical industry, environmental protection, power, medicine, metallurgy, food and other industries. It has unique advantages in transporting cohesive materials, sticky materials (such as chemical raw materials, waste pulp, malt, sludge, etc.) and easily winding materials (such as waste).

Outstanding advantages of shaftless screw conveyor 

1. Shaftless screw conveyor adopts special liner, which can work at high temperature and is durable.

2. Because the shaftless screw conveyor is designed without shafts, the material is not easily blocked in the process of conveying, and improve the screening effect.

3. Low-speed operation, smooth transportation, can effectively reduce energy consumption.

4. Shaftless screw conveyor adopts fully enclosed conveying and easy cleaning spiral surface, which has good environmental protection performance.

5. Shaftless screw conveyor has a torsion distance of 4000N/m and a single conveying length of 60 meters. The conveying capacity is 1.5 times than that of the traditional shaft screw conveyor with the same diameter.

6. According to the needs of users, tandem installation can be used to transport materials over long distances.

Working principle of shaftless screw conveyor 

The shaftless screw conveyor adopts a shaftless screw type. When the material enters from the feeding hopper of the conveyor, the material is pushed and slid by the rotation of the spiral blade, and is sent to the discharge port along the conveying groove of the shaftless screw conveyor, and then the material will be processed in the next step.

Technical Parameters

WLS type 100 160 200 250 315 400 500 630 800 1000 1250
Screw diameter(mm) 100 160 200 250 315 400 500 630 800 1000 1250
Screw pitch(mm) 100 160 200 250 315 355 400 450 500 560 630
Rotation speed(r/min) 140 120 90 90 75 75 60 60 45 35 30
Transportation volume QΦ=0.33(m3/h) 2.2 7.6 11 22 36.4 66.1 93.1 160 223 304 458
PowerPd 1=10m(KW) 1.1 1.5 2.2 2.4 3.2 5.1 4.1 8.6 12 16 24.4
Power Pd 1=30m(KW) 1.6 2.8 3.2 5.3 8.4 11 15.3 25.9 36 48 73.3
Rotation speed(r/min) 120 90 75 75 60 60 45 45 35 30 20
Transportation volume QΦ=0.33(m3/h) 1.9 5.7 18 18 29.1 52.9 69.8 125 174 261 305
Power Pd 1=10m(KW) 1.0 1.3 2.1 2.1 2.9 4.1 4.7 6.8 9.4 14.1 16.5
Power Pd 1=30m(KW) 1.5 2.3 4.5 4.5 7 8.9 11.6 20.4 28.3 42.2 49.5
Rotation speed(r/min) 90 75 60 60 45 45 35 35 30 20 16
Transportation volume QΦ=0.33(m3/h) 1.4 4.8 15 15 21.8 39.6 54.3 97 149 174 244
Power Pd 1=10m(KW) 0.9 1.2 1.9 1.9 2.5 3.4 4.3 5.4 8.1 9.5 13.3
Power Pd 1=30m(KW) 1.2 2.2 3.8 3.8 5.4 6.8 9.2 16 24.4 28.6 39.9
Rotation speed(r/min) 75 60 45 45 35 35 30 30 20 16 13
Transportation volume QΦ=0.33(m3/h) 1.2 3.8 11 11 17 31.7 46.5 73.0 99.3 139 199
Power Pd 1=10m(KW) 0.75 1.1 1.6 1.6 2.1 3.1 3.7 4.6 5.7 7.7 11
Power Pd 1=30m(KW) 1.1 1.8 3.4 3.4 4.4 5.6 8 14 16.7 23.2 33

Technical Parameters

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