
Gyratory Sifter Machine is also called reciprocating screen / square tumbler screen, if see from the motion trail of screen box. The vibratory force produced by its driving device is the inertial force twining along the dead axle, the direction of which is change according to a certain regular. The essence of square swinging screen is the reciprocating inertial force formed by the rotation of eccentric wheel winding the dead axle. According to the structure characteristics and working principle of swinging screen, the screen surface is arranged with level or incline (angle of inclination is 0-5 degree). After turn on the swinging screen, the screen box take reciprocating movement under the inertial force, screen box drives screen surface to make periodic shaking, which makes the materials on the screen surface to make directional jumping movement with the screen box. During the period, the material less than the screen aperture falls to under layer, the material bigger than the screen aperture make jumping movement, discharged from the coarse outlet.




Model | Screen size | Screening area | Screen inclination | Layers | Power | Number of turns | Case travel |
FY 1536 | 1.5*3.6m | 5-45 | 5.4±3 | 1-10 | 5.5 | 180-260 | 25-60 |
FY 2040 | 2.0m*4.0m | 8-72 | 5.4±3 | 1-10 | 7.5 | 180-260 | 25-60 |






The proper selection of the square tumbler screen depends on the material, mesh size, output required, method of input etc: |
1. Name of material: _____ |
2. Moisture:_____% |
3. Specific gravity:_____ [It means g/cm3 or kg/m3] |
4. Capacity:________kg/ hour |
5. Screen layers:_______ layers |
6. Screen mesh size:______ mm . ______ mm. ______ mm.______ mm. |
7. Voltage:______V, Frequency:______HZ, 3 phase |
8. SS304/316L stainless steel or Q235A carbon steel? |