When the drum is under high-speed operation, the suspension enters the drum through the feeding pipe. Under the action of centrifugal force, the suspension is evenly distributed in the filter cloth of the drum. The liquid phase passes through the pore of filter cloth, the gap of screen mesh, and the filter hole of the drum and then is discharged from the outlet of the mother liquid pipe; while the solid phase is intercepted to form a ring filter slag layer on the filter mesh. When discharging, the main engine of inverting centrifuge first slows down to the discharging speed, then starts the discharging motor and pushes the pusher out of the drum. Because the two ends of the filter cloth turn over, and the retained material is turned to the outside of the filter cloth.
FW Main technical parameter
Item / Model
Drum diameter (mm)
Drum volume (L)
Filter area (m2)
Max. revolving Speed (r/min)
Max. Separating factor (N)
Weight of Machine (Kg)
Outline Size (mm) (L×W×H)
1. Fully sealed structure design, reliable sealing, no pollution to materials
2. The shell can be completed and turned over for easy cleaning and inspection.
3. Discharge without scraper mechanical parts, no damage to grain crystal.
4. There is no material residue in the filter cloth, which is convenient for the separation of materials in the next batch.
5. Unmanned operation, automatic detection, and operation.
After the start-up of the equipment, firstly judge whether the proximity switch of the motor end is effective or not. If not effective, the assist motor will work to seal the drum. After that, the assist motor will stop and the main motor start to run. After the drum reaches the set speed, the feeding valve will open and suspension will enter into the full-speed rotary drum filtration through the feeding pipe. Under centrifugal force, the solid of the suspension will be distributed evenly on the internal surface of the filter mesh and most of the liquid will pass through the small holes on the filter mesh and drum wall and be drained outside through the liquid outlet. After a long time operation, the thickness of the solid product inside the drum will keep gaining. When reaching the set time, the feeding valve will close automatically. (feeding time will be changed for different products and can be adjusted at first commissioning).
FW series are inverting filter centrifuges with intermittent feeding and intermittent discharging.
Feeding, separating, washing, dehydration, and other operating procedures are completed under full speed; discharging is completed under the condition of deceleration, which avoids material contact with subject other than equipment, and can protect the operator and material from pollution as well.
The machine meets GMP specifications and is suitable for filtration and separation in pharmaceutical, food, and chemical industries.