Automatic Metering Screw Feed System for Mixing and Dispensing Dry Polymers into A Secondary Process
The Model VMF-90D Volumetric Screw Feeder with Vibratory Agitator has been designed to be an “off the shelf” option for upgrading or replacing existing volumetric feeding units. The VMF-90D is capable of accurately dispensing many common chemicals found in the water and waste water industries, as well as, a host of other industrial chemicals. Scaletron decided to offer many optional features as standard equipment on the VMF-90D so that one feeder can be adapted to many systems. Features like a concentric material conditioning overwind auger, remote location mountable SCR controller, 4-20mA output, integrated cycle timer, LIW recording with scale, alarm sensor and a vibratory agitator.
Standard Features
- Rugged, corrosion resistant 304 stainless steel construction
- Built-in 1.5 cu. ft. gravity fed hopper with maintenance access hatch and integrated load cell attachment point
- Stainless steel, 1.5″ diameter open helix feed screw
- Standard concentric material conditioning overwind auger
- Electric vibratory hopper agitator/material conditioner
- Remote location mounted, programmable SCR motor controller with HMI screen in water and dust proof NEMA 4X stainless enclosure
- 90 VDC right-angle geared, wash down motor
Options
- Integrated “Loss in Weight” measurement system with four (4) load cells and Model AccuPro 5000 Digital Controller
- Explosion proof motor
- Pneumatic vibratory agitator
- Removable lid
- Adapter lid
- Feeder stand
- Programmable controller module stand
Chemicals
Feeder and scale are designed to accurately dispense:
- Aluminum sulfate (alum), calcium hydroxide (hydrated lime), carbon, ferric and ferrous sulfate, magnesium hydroxide, polymers, potassium, soda ash, sodium sulfite and thiosulfate, and other dry powders or pelletized materials
