How a coating machine works?
A coating machine, also known as a tablet coater, is a process equipment used in the food industry, especially in the chocolate and confectionery industry, or in the pharmaceutical industry.
These processing machines are used to coat tablets or food products. In the food industry, coating turbines are used to coat products (e.g. hazelnuts, sugared almonds) with chocolate, caramel or sugar. These coating machines can also be found in the pharmaceutical sector to coat tablets with sugars or colourings.
Composition of a coating unit
The coating pan is a stainless steel or copper tank designed to rotate. Tablets or primary products are impregnated by the continuous rotary movement of the pan.
A spray ramp, consisting of one or more spray nozzles, sprays the coating solution onto the products inside the coater. This allows the tablets to be completely and uniformly coated, without sticking together.
These machines are also equipped with a hot air aeration and ventilation system. The fan blows hot air to fix the sprayed solution. This removes humidity and helps the tablets to dry.
Finally, there is a suction and ventilation system to prevent the spread of particles in the air.
Technical characteristics of a coating machine: capacity (in kg), volume (in litres), diameter, temperature of the blown air.
Recognised brands: Dumoulin, Manesty, …