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Tablet Coating Machine:
A tablet coating machine is a mechanical device that coats the surface of tablet dosage forms with a basically dry, thin coating of substance in order to provide certain advantages over uncoated varieties. That coating substance is applied on the external surface.
Advantages of Tablet Coating Machine:
- The main benefit of tablet coating is that it can regulate the drug’s rate of release and defends against the unpleasant flavor and odor of the medication.
- It is used for protecting the medicine both chemically and physically by providing defense against heat, humidity, and temperature.
- This prevents the medication from disintegrating in the stomach’s acidic medium before it reaches the intestine.
- It keeps the tablet’s form and gives it tamper-resistant.
- to offer consistency and visual attractiveness, a smooth surface, and an uniform application of color.
Features of Senieer Tablet Coating Machine:
- 2 Bar S.S. 316/304 Construction: tight dimensional tolerance, GMP compliance, and absence of fractures or fissures.
- Application of Coatings Across the Board: Water Solvent. The coating procedure is optimized by the sugar spray gun setup.
- Outstanding Process: Air Flow A wholly enclosed, extremely effective airflow system is used in the innovative perforated pan design to ensure maximum drying uniformity and minimal process air consumption.
- Quick and Simple Cleaning: C.I.P System
- Material Handling System: automated system for unloading.
- Spray System for Precise Solutions: Imported spray guns and a removable spray gun bar with a solution tank and a highly precise peristaltic pump.
- Control of automated processes: PLC control system for thorough monitoring, recording, and managing all important processes parameters
- Protection of the environment and safety: The auto-coating machine is equipped with a specific technology to stop all powders and fugitive coating material, neutralize solvent fumes, operate completely cleanly, and prevent environmental contamination.
How does Senieer tablet coating machine function?
- Depending on the kind of tablet and the desired coating, choose the appropriate coating materials.
- The tablets are then placed in a drum and rotated in an orbital pattern, with the streamlined plates controlling the majority of the operations.
- The nozzle sprays a coating solution that is controlled by an automated control system while the drum rotates.
- The method guarantees that the coating on the tablets is applied accurately and evenly.
- The machine pushes hot air into the drum as the spraying continues, resulting in a fast application of the solution.
- It maintains the same temperature on its own to keep the drug’s composition in excellent shape.
- When the required coating is achieved, the tablets are moved to the drying area, where air is blown over them.
- This is how the tablet coating machine works before the packing process, with the volume of air being controlled to ensure no interaction with the pills.
Process of tablet coating
There are 3 main processes of tablet coating here we can say film coating, enteric coating and sugar coating.
Film coating: A thin layer of a film-forming polymeric is deposited onto a product substrate in the process of film coating. The procedure can be carried out with standard panning equipment, but modern equipment is more advanced in order to provide effective drying, a high level of automation, and quick coating.
Film coating is a typical process in the production of tablets and can be used to enhance the product’s appearance, organoleptic qualities, or swallowing convenience. Functional film coats can also be utilized to adjust or postpone drug release as part of the product’s stabilization strategy.
Sugar coating: In quick release applications, sugar coating is used to hide the undesirable flavor and odor of some medications or to enhance the product’s visual characteristics. It is important to realize that the coating procedure may affect how quickly a medicine dissolves while also delaying the overall disintegration of the tablet.
The sugar coating serves as a barrier to external pollutants and safeguards the medication inside the tablet, among other functions.
Enteric coating: A polymer known as enteric coating is put on oral medications. It acts as a barrier to stop medications from being dissolved or degraded by the stomach’s gastric acids after you swallow them. Many medications would dissolve quickly in stomach acids without complete enteric protection. For medications like insulin that rapidly disintegrate in the stomach, enteric coating is a helpful delivery method because it stops the drug from being released in the stomach’s acidic environment before it reaches the intestine.
Types of tablet coating machines:
There are 3 types of tablet coating machines:
Here we can say Standard coating pan, Fluidized bed or Air suspension system, perforated pan or Drum
Standard coating pan:
The typical coating pan features an electric motor that rotates the circular metal pan horizontally around its axis. A batch of tablets tumbles because of the movement of this pan. Once more, the typical pan system has an air supply at the inlet. This input port provides warm air.
Fluidized bed or Air suspension system:
Typically, the chamber of a fluidized bed coater is a vertical cylinder. A column of air rising from the bottom center of the cylinder fluidizes the pellets by moving them upward. The tablets in the center are carried upward by the air current and then fall outward and downward to the chamber wall before reentering the air stream from the base of the column. There are spray nozzles at the bottom and top of the chamber for applying the coating solution.
Even under ideal circumstances, it is challenging to completely coat the tablet because of its fragile core, which is prone to chipping and abrasion. This is a result of the harsh contact between the tablet chamber and other tablets.
Perforated pan or Drum:
A perforated pan or drum is used in a perforated coating pan, which is spun on its horizontal axis inside of a housing. Through spraying nozzles positioned inside the drum, the coating solution is applied to the surface of the spinning bed of tablets.
Things to consider on a tablet coating machine:
Amount of air or Air capacity: The volume of air passing through the coating bed will affect how much water or solvent can be extracted during the coating procedure.
Coating substances: In addition to the solvent that serves as a carrier for the chemicals, the coating composition also consists of the substances that are applied to the surface. Air is forced through the coating machine during the coating process, which removes the solvent. A delicate balance must be struck between the rate at which the solvent can evaporate and the rate at which the coating liquid can be injected in order to speed up this process by heating the incoming air.
Tablet surface area: To estimate how much coating solution has to be applied, it is simple to weigh a batch of tablets that need to be coated. The amount of coating solution needed, however, is determined by the tablet’s surface area. The required quantities of solution and coating conditions can be greatly impacted by the size of the tablets and the characteristics of their surface. A larger tablet has a substantially lower overall area to weight ratio than a smaller tablet.
Efficiency of machinery: The coating material that has accumulated on the pan walls affects efficiency.
There are some optional items that can be included in tablet coating here we can say:
- Humidifier
- WIP system
- Interchangeable Pan
- Dry Dust Collector
- Electric Heat Exchanger
- Tablets charging by bin loader
why choosing Senieer?
Leading global manufacturer and supplier of pharmaceutical equipment, Senieer offers ONE STOP SOLUTION. Senieer is the finest global partner for businesses in the pharmaceutical, food, chemicals, and cosmetics sectors. For more than 34 years, Senieer has focused mainly on solid dosage forms in China. Reliable integrated process solutions. We produce equipment in compliance with global norms including GMP, cGMP, and US FDA.
Members of the Senieer technical team enhance one-stop solution services for comprehensive projects, from consulting to design. We fully satisfy your method and requirements for resolving all of your issues