Working principle:
Vacuum feeder is a vacuum feeding machine by using pneumatic vacuum pump as vacuum source, with this vacuum feeder materials could be directly from container to mixer, reactor, hopper, sheet press, packing machine, vibrating griddle, pellet trimming machine, hydro-state pellter, dry-state pellet disintegrator. To use this feeder could lighten workers labor intensity, put an end to powder pollution and ensure the at production process meets GMP requirements.
When a?? ON/OFFa?? key is pressed, compressed air gets into vacuum pump and the discharge of the hopper. Driven by Pneumatic cylinder. Is closed. Vacuum is establied in hopper. Vacuum feeder will form an air current under vacuum. Operated by this current, material is fed to vacuum hopper via hose. After a period of time( feeding time, adjustable). Compressed air is cut off, pneumatic vacuum pump could not generate vacuum and the discharge of the hopper. Driven by pneumatic cylinder, gets open the vacuum in vacuum feeder disappear and material is automatically discharged from the discharge into receiving machine( such as sheet press and packing machine). Meanwhile, compressed air stored in the air of time( discharge time, adjustable). Compressed air is restarted, Pneumatic vacuum pump generateds vacuum, discharge is closed. Vacuum feeder feeding material again. In this way the feeder works in cycles to make the material fed into receiving machine continuously.
For the vacuum feeder with material level control automatic feeding is realized with the hopper of the material-receiving machine through materials level control. When the material level is higher than a position in the hopper to the material a??receiving .

Technical Specification:

Model Feeding volume
(kg/h) Air consumption
( Liter/minute) Pressure of supplied air ( MPA)
QVC-1 350KG 180L 0.5-0.6
QVC-2 700KG 360L 0.5-0.6
QVC-3 1500KG 720L 0.5-0.6
QVC-4 3000KG 1440L 0.5-0.6
QVC-5 6000KG 2880L 0.5-0.6
QVC-6 9000KG 4320L 0.5-0.6