Auto Coater Manufacturer – Bombay Engg

About Auto coating machine

Auto Coater Manufacturer

Unveiling the Magic of Autocoater: A Revolutionary Technology in Pharmaceutical Manufacturing

In the fast-paced world of pharmaceutical manufacturing, every second counts. That’s why advancements in technology play a vital role in optimizing productivity and efficiency. One such revolutionary technology is the Autocoater, a game-changer in the industry.

The Autocoater is a sophisticated machine that automates the coating process of pharmaceutical tablets and capsules. It ensures a uniform and precise coating, delivering consistent quality and reducing the risk of human error. With its state-of-the-art features and cutting-edge design, this technological marvel has taken the pharmaceutical world by storm.

The Autocoater’s ability to coat large batches of pills at a time has significantly increased production speed, making it an indispensable tool for pharmaceutical manufacturers. Its intuitive interface allows for easy programming and monitoring, resulting in a streamlined manufacturing process. Moreover, the Autocoater’s energy-efficient design translates into cost savings and environmental benefits.

By eliminating manual labor and improving accuracy, the Autocoater has revolutionized pharmaceutical manufacturing, accelerating production and ensuring superior product quality. As the industry continues to evolve, this groundbreaking technology remains at the forefront, empowering pharmaceutical manufacturers to meet growing demands while maintaining the highest standards.



Auto coater is used to coat tablets, pills, candies, granules, sweets with sugar film, an organic film, and aqueous coating in the Pharmaceutical and food industry. we are well known for auto coaters manufacturer in india and mumbai 

Featuring mechatronics and confirming the requirement of cGMP. It is a high efficiency, energy-saving, safe and clean equipment for film & sugar coating of tablets, Pills, and candies with film – organic solvent and aqueous coating and flim coating of tablets.

The tablet to be coated makes a continuous complicated orbital motion the closed rotating Drum under the action of a streamline of Baffles. During the movement, the coating medium automatically sprays according to the technological process and rational technical parameters. At the same time, hot filtered air is supplied under negative pressure.

The hot air penetrates through the tablet’s core layers. It is discharged from the bottom of the layers. The coating medium sprayed on the tablet cores’ surface will dry rapidly and evenly, forming a stable and smooth surface film on the tablet.

Working Principle Of Auto Coater Machine

The auto coater consists of a control system, a hot air filtering system, coating pan, solution tank, and exhaust system. The film to be coated on the tablet is in liquid form before the process is started so the liquid is filled in the solution tank. The liquid is stirred well in the solution tank and then pumped into the coating pan. The coating pan is perforated and holds a batch of tablets that are to be coated. A set of spray guns are present at the center to spray the coating liquid on the tablets. The coating pan is able to rotate on its axis.

Hot air is passed in from a hot air blower which is passed through a series of filters to remove impurities. The filters used are a washable filter, pre-filter, and HEPA filter. The air from the blower is not hot initially so a steam heater is used to heat the air before passing it into the coating pan. The machine is operated by PLC controls from the control panel.

In the coating process, the tablets or similar products that are to be coated with film coating are filled in the coating pan. The coating liquid is pumped from the solution tank into the coating pan. The spray guns spray the tablets with atomized particles of

the coating solution as the perforated coating pan is rotated so that the entire batch of tablets is evenly coated. Simultaneously, the hot air from the blower is passed in to the drum at negative pressure which dries the sprayed coating evenly and rapidly which then causes it to become a solid and smooth surface film on each of the tablets.

The air is then exited from the perforated coating pan and moves to the exhaust system. The exhaust system consists of an exhaust blower to send the exit air from the coating pan to the external environment. The exhaust system consists of a dust collector which is also called a scrubber. In some systems, wet scrubbers are used to filter the particulates in the exhaust. The liquid droplets within the wet scrubber absorb the particulate matter thereby filtering the exhaust air before release.


what is the auto coating?

Auto coater or automatic coating machine is an apparatus that is used to coat surfaces of small particles with a thin film of coating substance.

In pharmaceutical industries the auto coater is used to coat the tablets. The tablets are sprayed with a coating as the tablets move on in a device and then hot filtered air is passed so that the applied coat dries immediately to form a thin layer of coating on the tablet surface.


It is the application of coating solution to the rotating bed of tablets with the application of hot air to facilitate the evaporation.


A compound or multiple layer over the tablet or granules is called coating.


How Autocoater works in the pharmaceutical manufacturing process

The Autocoater automates the coating process of pharmaceutical tablets and capsules, ensuring a precise and uniform coating. Understanding how it works is essential to grasp its transformative impact on pharmaceutical manufacturing.

The process begins with loading the tablets or capsules into the Autocoater. The machine’s advanced feeding system ensures a consistent and controlled flow of tablets, preventing any clumping or uneven distribution. Once loaded, the tablets move into the coating chamber, where the coating material is applied.

The Autocoater utilizes a sophisticated spraying system to evenly distribute the coating material over the tablets. The spraying system consists of nozzles that release a fine mist of the coating solution, ensuring a uniform coating on each tablet. The machine’s innovative air handling system ensures efficient drying of the coated tablets, minimizing the risk of defects or inconsistencies.

Throughout the process, the Autocoater’s intuitive interface allows operators to monitor and control various parameters, such as the spraying speed, coating thickness, and drying temperature. This level of control ensures the desired coating results are achieved consistently, without the need for manual intervention.

In conclusion, the Autocoater automates the coating process of pharmaceutical tablets and capsules through its advanced feeding system, spraying system, and air handling system. Its intuitive interface allows for precise control and monitoring, ensuring a uniform and high-quality coating.

Comparison of Autocoater with traditional coating methods

Traditional coating methods in pharmaceutical manufacturing rely heavily on manual labor and are more prone to variations and errors. Comparing the Autocoater with traditional coating methods highlights the advantages and improvements brought by this revolutionary technology.

One key advantage of the Autocoater is its ability to coat large batches of tablets or capsules at a time. This significantly increases production speed compared to traditional methods, where tablets are coated individually or in smaller batches. The Autocoater’s advanced feeding system ensures a consistent and controlled flow of tablets, preventing clumping and uneven distribution.

Another advantage lies in the precision and uniformity of the coating achieved by the Autocoater. Traditional coating methods often result in variations in coating thickness, leading to inconsistent product quality. The Autocoater’s spraying system, with its precise control over spraying speed and angle, ensures an even distribution of the coating material, resulting in uniform coating thickness and coverage. This eliminates variations and enhances overall product quality.

The Autocoater also reduces the risk of human error compared to traditional methods. Manual coating methods require extensive manual labor, increasing the likelihood of mistakes or inconsistencies. The Autocoater’s automation reduces the reliance on manual labor, minimizing the risk of human error and ensuring greater process control. Operators can easily program and monitor the coating process, reducing the likelihood of errors and ensuring consistent results.

In terms of efficiency, the Autocoater outperforms traditional methods by streamlining the coating process. Its intuitive interface allows for easy programming and monitoring, reducing the time and effort required for manual coating. Additionally, the Autocoater’s energy-efficient design translates into cost savings and environmental benefits, making it a more sustainable option compared to traditional methods.

In summary, the Autocoater offers numerous advantages over traditional coating methods, including increased production speed, improved quality control, reduced labor requirements, and cost savings. Its precision, automation, and efficiency make it a revolutionary technology in pharmaceutical manufacturing.

Features of autocoater 

  • Automated process
  • Conforms to cGMP
  • Flexible batch operations
  • Product protective handling to prevent clipping of tablets
  • Complete separation of production and technical area
  • Extremely user-friendly software and operation through PLC
  • Excellent mixing and tumbling by a unique design of baffles
  • Made up entirely of S.S. 316
  • Advanced CIP system
  • Treatment of exhaust for pollution-free operation
  • AVAILABLE CAPACITIES: 12 “, 15″, 18″, 24″, 36″, 48”, 60 “, 66″, 72″, and 96″ dia.

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specification of autocoater

MODEL BEW 24” BEW 36” BEW 48” BEW 60”
Approximate working capacities


(depending upon tablet shape and powder density)

10 Kgs 75 Kgs 150 Kgs 350 Kgs­
Pan Diameter 610 mm 915 mm 1220 mm 1575 mm
Drive Motor (Flame proof) 1 HP 2 HP 3 HP 7.5 HP
Exhaust Fan Capacity 350 cfm at 150 mm KW 1350 cfm at 200 mm KW 2750 cfm at 200 mm KW 6000 cfm at 200 mm KW
Hot Air Fan Capacity 300 cfm 1200 cfm 2550 cfm 5500 cfm
Hot Air Fan Motor (Flame proof) 1 HP 3HP 5HP 10 HP
Steam Consumption (Steam pressure 3 to 5 Kg / cm²) 25 Kgs / hr or


9 KW

50 Kgs / hr or


36 KW

100 Kgs / hr



200 Kgs / hr



Compressed Air requirement at 7 Kgs / cm² pressure 15 cfm


(25 NM³ / hr)

30 cfm


(51 NM³ / hr)

40 cfm


(68 NM³ / hr)

50 cfm


(85 NM³ / hr)