From the sterilizing tunnel the empty sterilized vials are routed to the infeed turn table. Guides are provided in the turn table which properly aligns the empty vials and passes it to the conveyor. The conveyors takes the vial to the filling unit. A chamber type arrangement is provided for the pre gasing of nitrogen into the vials. The flushing of nitrogen takes place before the filling unit. No vial no filling sensor is provided to avoid the wastage of costly powder. The vials are held under the powder wheel by a pair of timed vial separators. The timing of the vial separator are adjusted in sequence with the intermittent motion of the powder wheel.
This machine is equipped with canister loading arrangement in which the canister is fitted on top of the powder hopper. From the powder hopper the powder is drawn by vacuum in to the powder wheel. Vacuum is applied through the nylon tips filter which is fitted on top of the piston inside the powder wheel. This piston retains the powder during indexing till it reaches exactly above the vial neck.
Instead of the front facing of the powder wheel this machine has side facing. The conveyor moves under the powder filling unit. The powder wheel consists of 12 ports instead of 8 port standard powder wheel.
When the vial is held in position by the vial separators a signal is relayed to the solenoid valve in the powder dosing system. This solenoid activates vacuum which holds the powder in the port of powder wheel, duing the rotation at the lowest end the outlet port is connected with compressed air / nitrogen and changes to pressure. The pressure forces the powder out of the port into the vial positioned directly below the powder fill wheel. The vial separators then rotate and the vials are forwarded on the conveyor towards the vial liquid filling unit.
A separate forcep type conveyor is provided for the eight head vial liquid filling unit. Individual drive system is provided for this conveyor. Here at a time eight vials are gets filled with liquid. Here the vials are moving and along with the vials the diving nozzles also moves along with the vial resulting in the pouring of liquid into the vial. In this system the syringe rotates 180° . This system ensures that you get a perfect accuracy while filling.
In this machine you can use powder filling and liquid filling together or you can use any one (i.e. Either powder filling or liquid filling). All the operations are controlled through plc system. Post gasing arrangement is provided at the rubber stoppering unit
After filling the vials moves towards the rubber stoppering unit. The sterilized and siliconised rubber stoppers are stored in the vibrator bowl. From there the rubber stoppers moves veritically to the chute. A fibre optic sensor is provided in the chute which shuts down the machine when there is no rubber stopper in chute during the operation. The vial is hold firmly between pair of timing belt to pickup rubber stopper from exit end of the chute. Further the vials are passed between two pressing roller for tight fixing of rubber stopper. After the rubber stoppering the vials moves towards the next operation of sealing.
Utilities (To be Provided by Buyer)
Pneumatic Air : Filtered, oil free, sterile low pressure air at 4 kg/cm2(4/6 bar)
Vacuum line : 20 Hg. (pump will be supplied by us)