The
sterilized powder stored in two powder
hoppers is agitated by pair of mechanical
agitators for maintaining consistency
and uniform bulk density, each powder
wheel having eight ports rotates at
the pre determined speed below the
powder hopper with practically no
clearance. Powder wheel consist of
Piston in each port and behind the
powder wheel, vacuum plate is provided
there is no clearance between powder
wheel and vacuum plate due to back
spring pressure. Precise volume of
powder is sucked in to the port of
powder wheel during vacuum according
to the piston length different fill
size can be achieved. The excess powder
is doctored off by a doctor blade,
the doctor blades can also be adjusted
from outside without removing powder
hopper. When powder wheel indexes
further and remain in the port due
to the vacuum till it reaches just
vertically above the vial. The time
dose of Compressed air, sterilized
low pressure air or Nitrogen Gas sequentially
flushes out powder from the port of
powder wheel in to the container one
by one. It is a double wheel Double
track machine, so each powder wheel
is filling vials alternately with
double track system. The filled vials
are immediately separated on the conveyor
by vial separator and moves further
for stoppering operation. (Different
grooves separator can be used which
depends on the container diameter
or multiple dosing system). After
separated from vial separator, vials
move further towards rubber stoppering
unit and in between it will be converted
in to single track from double track
with the help of suitable guide rails
on machine conveyor. |
