Caleva Mini Coater Drier:

The need for the antistatic unit in the pellet coater

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THE PROBLEM

* Spray nozzles with almost any solution generate static electricity on the droplets of spray material as they are formed.
* In substantially metal equipment this charge can be carried away through the metal of the equipment.
* Much of Spray nozzles with almost any solution generate static electricity on the droplets of spray material as they are formed.
* In substantially metal equipment this charge can be carried away through the metal of the equipment.​

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FOR TABLETS

* The forces that the electrostatic charge generates onthe particles being sprayed are small.
* If tablets (and only tablets) are being coated then the strength of electrostatic forces compared to the weight of the tablets is very small and generally can be
ignored.

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FOR PELLETS

* When small pellets are sprayed they have much less mass than tablets. In this case the electrostatic forces can have a significant effect of the way the pellets move in the spray chamber or stick together
* In certain formulations unless the charge is removed or reduced then the pellets will either tend to stick together or will stick to the sides of the coating chamber.

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THE SOLUTION

* The antistatic generator generates in the chamber a stream of charged ions designed to neutralize the electrostatic change generated by the spraying process.
* This will remove or reduce as much as possible, the effect of the electrostatic charge on the small pellets.

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The use of the optional anti static kit is recommended for all applications coating pharmaceutical pellets.

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