The dual screw conveyor, also known as coarse fine screw conveyor, is composed of mother screw and sub screw. The mother screw ensures fast feeding in the early stage of the weighing cycle and shortens the time. In the later stage of the weighing cycle, the sub screw works alone for micro feeding and precision measurement.

Technical Features

High reliability:

  1. The outer pipe is made of high-quality steel pipe, the inner pipe is made of seamless steel pipe, the CNC intersecting wire cutting machine is cut, the CNC ring seam welding machine is welded, and the straightness and wear resistance are good;
  2. The blade is rolled with 6mm manganese plate, which is wear-resistant and stable.
  3. Homemade high-quality gearbox, gear grinding treatment, bearing Swedish SKF brand, oil seal adopts the “Sidaxing” brand, designs a new output end cover seal, with transmission torsion
  4. The moment is large and the noise is low, and there will be no oil leakage or dust leakage.


High adaptability:

  1. Double screw pitch or three screw pitch design reduces the compression degree of materials in the transportation process, and there will be no material plugging;
  2. The universal joint process of the feeding port makes the installation and adjustment steering flexible and dust-free;
  3. The fixation mode of the middle crane shaft is improved, and a fixed baffle ring is added to the spline sleeve to avoid the misalignment of the inner tube caused by the failure of the elastic baffle of the shaft.

Equipment parameters

Model No LX168 LX219 LX273 LX323 LX407
External diameter(mm) 168 219 273 323 407
Max lenght(m) 12 15 15 15 11
Operation angle(°) 0-45 0-45 0-45 0-45 0-45
Capacity(t/h) 17 40 80 110 170
Power(kw) 4-11 4-15 5.5-18.5 7.5-30 15-37
External diameter(mm) 140 140 140 140 168
Power(kw) 1.5 1.5 1.5 1.5 4
Measuring accuracy(kg/s) 0.7 0.7 0.7 0.7 2.5


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