Tablet Coating Machine

Tablet coating machines are mechanical devices designed to perform a simple process of applying a thin layer of coating material to the surface of the tablets. They deliver a bunch of benefits by placing a coating solution around the solid oral dosage form.

A tablet is typically formulated with one or more active pharmaceutical ingredients (APIs). The properties of many APIs are highly sensitive to the environment, so they need to be protected by a film of coating against external influences.

Typically, the tablet coating equipment performs a process that includes the following 7 steps:

• Step 1 - Preparation: Batch identification and selection of coating solution recipe;
• Step 2 - Loading: A batch of tablets is loaded into the coating pan by the operator;
• Step 3 - Warming: Preheat the tablets until they reach the set temperature;
• Step 4- Spraying: As the tablets rotate continuously in the coating pan, the coating solution is automatically and evenly distributed onto the tablets by an air-atomized spray system;
• Step 5 - Drying: At the same time, heated air is directed into the coating pan under negative pressure. The heated air passes through the tablets so that the coating solution sprayed on the tablet cores will dry fast, producing a solid and smooth film on the surface of the tablets;
• Step 6 - Cooling: The spray guns stop. The pan keeps rotating, enabling the coated tablets to tumble and cool down;
• Step 7 - Discharging: After the batched tablets are completely coated and cooled down, unload them for the downstream process.

STV Coating machine is designed with various output capacity ranging from 5 kg per batch or more. By using advanced coating technology with fully perforated pan, air exchange efficiency is improved thus it reduces machine working time significantly while ensures coating uniformity for products.

Machine is available for both film coating and sugar coating, available for time-release tablet.

The coating system is designed for free-standing or through-the-wall. The technical area behind the room, gives minimum space requirement, fewer external surfaces to clean, all essential components are accessible from technical zone for maintenance and calibration.

• In all coaters, STV machine makes every possible effort to achieve a perfect quality of inlet and outlet air through an optimum designed air handling system.
• Viewing window installed in front of machine and illumination lamp help operator observe product during coating process easily.
• Temperature, moisture, air volume should be maintained at a constant level, without depending on ambient environment.
• Adjustable the Exhaust air chamber with guide plate The optimized horizontal process air guidance minimizes turbulence in the nozzle area, contributing further to a perfect coating result.
• Anti-Bearding cap “ABC” technology for spray gun.
• CIP
• Coating pan moved thanks to gear belt has minimum noise while operating.
• Minimum turbulence.
• Low process times.
• Through the wall installation.