GRAVITY FILTERS
Model HGF
Model DBGF
Model LGF
Model LF (Li'l Fil)

AIR VACUUM FILTERS
Model SCF
Model HVSCF
Model FLA

LIQUID VACUUM 
FILTERS
Model LVF

PRESSURE FILTERS
Model APF

SLUDGE FILTERS
Model SF

ABSORPTION FILTERS
Model ABS

MAGNETIC 
SEPARATORS
Model MSI
Model MSI Video

CENTRIFUGES
Model ACF
Model ASF
Model MCF

EVAPORATORS
Model TEB

VACUUM 
DISTILLATION UNIT
Model VDU
Model VDU Video

OIL-WATER 
SEPARATION
Model OWS
Model DTOS

AUXILIARY
EQUIPMENT
Model SMR
Model SDU

ALUMINUM ROLLING AND DRAWING
Cold Rolling Coolants
Aluminum Wire Drawing

METAL GRINDING
Roll Grinding Coolants
Centerless Grinding
Parts Grinding Coolants

INDUSTRIAL 
WASTEWATER
Spent Coolants
Process Wastewaters

MACHINING
Machining Coolants
Honing Coolants
Gun Drilling Coolants

METAL FINISHING
Alkaline Cleaners
Acid Pickling Solutions
Electroplating Rinsewater

PAINT SLUDGE
Paint Sludge Dewatering

PHOSPHATING
Sodium Phosphate Solns
Iron Phosphate Solutions

STEEL ROLLING
Cold Rolling Coolants
Stainless Steel Rolling Oils

WIRE DRAWING
(NON-FERROUS)
Continuous Cast
Wire Drawing Emulsions
Annealer Quenchants
Spent Emulsion Disposal

WIRE DRAWING
(FERROUS)
Wire Drawing Emulsions
SST Drawing Oils
Annealer Quenchants
Dry Soap Rinsewaters

In various clarification processes involving viscous liquids such as drawing and rolling oils, the solids generated can cause excessive wear on tooling and adversely affect product quality.

To provide efficient liquid-solid separation, Filtertech offers our Model ACF, Automatic Self-Cleaning Centrifuge. The Model ACF Centrifuge utilizes centrifugal force, one of the most basic methods to separate solids from liquids based on their difference in specific gravity. The Model ACF magnifies this force up to 1,750 times gravity through centrifugal action.

Mode of Operation

FIGURE 1
PROCESSING CYCLE

1) Process liquid continuously flows down through the feed tube. 2) The impeller accelerates and distributes the liquid into the spinning bowl. 3) Liquid flows up the rotating bowl as the solids separate and compact at the perimeter of the bowl. 4) The clarified liquid passes around the efficiency ring and discharges through the bowl hub discharge ports and into the frame collection chamber. 5) The clarified liquid flows down the drain tubes and into the lower frame drain pan where it exits the discharge connection at the base of the centrifuge.

FIGURE 2
CLEANING CYCLE

6) Once the bowl fills to maximum capacity with waste solids, the load sensitive dump (LSD) automatic cleaning cycle is activated to remove the solids. The clean cycle frequency can also be controlled by an adjustable PLC process timer. 7) When the cleaning cycle is activated, the centrifuge shuts off the feed and quickly brakes to a complete stop. 8) After the “free” liquid drains, the sludge chute cover is electrically opened. 9) A second electric actuator engages the plow mechanism’s gear assembly into the ring gears. The lower gear then turns, rotating the plow blades while the upper gear rotates the bowl assembly in the opposite direction. 10) The plowing action discharges the compacted solids from the tapered section of the centrifuge bowl. The sludge drops through a chute into a waste receptacle below the machine. Upon completion of the cleaning cycle, the sludge chute cover closes, the plow gear retracts, the process timer resets, and the machine resumes its process cycle. A normal cleaning cycle takes less than 5 minutes.

For more information request Product Bulletin FT220C or download PDF file.

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