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    L.B. Bohle BTC Tablet Coaters

    products-servicesL.B. Bohle
    September 21st 2023

    L.B. Bohle is a technological leader in development and production of coating systems for the pharmaceutical industry. Its well-established series of BTC Tablet Coaters have become an industry standard for efficient and effective combined spraying, mixing, and drying.

    These machines have become synonymous with economical tablet coating, with their flat tablet beds, innovating air flow system and high spray volumes ensuring high quality results and reducing processing times by up to one third.

    Harmonized process

    Successful film coating processes must combine basic operations: spraying of coating suspension, drying, and mixing to ensure uniform distribution. Each individual production step must be carefully planned and optimized in harmony with the others.

    In the BTC Tablet Coater, a flat tablet bed with a long pan geometry ensures the optimal flow of the tablet cores. The systematic forced guidance in the pan keeps the load in constant motion. This prevents twinning and minimizes loss of solids and coating to very low levels.

    Novel concepts for both process management and cleaning improve the functionality of the tablet coater and produce outstanding results.

    The air flow design unlocks clear process advantages, eliminating risk of spray-drying the suspension, reducing spray losses, and improving coating texture.

    Gentle tablet handling

    The pan geometry in combination with the mixing elements guarantees the gentle handling of the tablets. By reversing the rotational direction of the pan, the tablets can be emptied out quickly and completely.

    In addition, in the Bohle Tablet Coater, all nozzles are supplied with suspension fluid via a single pump head.

    Distinctive features of the BTC Series include ultra-functional easy to clean housing, designed for ‘through-the-wall’ installation, with built-in control cabinet incorporating multi-panel display with operator touch panel to make the machine easy to control and monitor.

    BTC Range and Benefits

    There are four BTC production scale machines that use increasing numbers of nozzles fed by single peristaltic pump head in the suspension unit. The BTC range comprises:

    Across the range, BTC Tablet coaters deliver quantifiable user benefits that include:

    • Processing times reduced by up to 35 % compared to conventional coating systems
    • Homogeneous mixing due to innovative mixing spirals
    • Gentle, mechanical treatment of the tablets, no tablet breaking or twinning
    • Uniform film application
    • Fast and easy discharge through reversal of rotational direction
    • Nozzles with anti-bearding caps allow long operation duration
    • Losses of spray suspension minimized to less than 5%
    • Geometric similarities among all machine sizes allow for easy scale-up
    • User-friendly software and display
    • Easy and fast cleaning.


    Click on L.B. Bohle BTC Tablet Coaters for further details.
    Click on Bohle Coating Technology to watch video.
    Click on BTC Tablet Coater Range to download product brochure (registration required).
    Click on White Paper on Tablet Coating to access technical paper (registration required).
    Visit our Technology Center and Service Center virtually in a 360° tour.


    Machinery for Your OSD Production

    L.B. Bohle BTC Tablet Coaters

    L.B. Bohle BTC 400 Tablet Film Coater: Batch sizes of 200 – 650 liters (brim volume).

    L.B. Bohle BTC Tablet Coaters

    Entire peristaltic pump head and nozzle assembly slides out as single unit for easy cleaning.

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