In the inclined body made in the form of a channel, with the rotation of the rubber-coated helical shaft, the material is both rubbed and dragged in the opposite direction of the slope and dewatering is provided by the backward flow of water. The thin shaft floating in the water is precipitated in the pools on both sides of this channel and the material escaping with the dirty water is minimized. Spiral washers produced as single and double helical shafts are a very common machine for washing materials between 0 and 10 mm.

Type / Type YH16 single YH18 single YH26 double YH28 double Helix Diameter / Screw Diameter (mm) 600 800 600 800 Length / Length (mm) 6000 8000 6000 8000 Capacity / Capacity ( m3/h ) 25 - 35 35 - 60 45 - 65 70 -80 Drive / Drive (kW) 5.5 22 2 X 5.5 2 X 22 Weight / Weight (kg) 2500 4600 5250 7400 Dimension A / Dimension A (mm) 1500 1800 1500 1800 Dimension B / Dimension B (mm) 6300 8400 6300 8400 Dimension C / Dimension C (mm) 1450 2000 1450 2000 Dimension D / Dimension D (mm) 1500 1700 2200 2800 Dimension E / Dimension E (mm) 800 one thousand 1400 2000