This page explains how Coating Drum is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
Rotating cylindrical vessel in pharmaceutical coating machines where tablets are coated with polymer films.
Technical details and manufacturing context for Coating Drum
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Nominal Volume | 10–1000 L | Select based on batch size; larger volumes require more floor space. |
| Max Tablet Load | 5–500 kg | Exceeding max load affects coating uniformity. |
| Rotation Speed | 2–15 rpm | Adjustable; higher speeds for smaller tablets. |
| Coating Angle | 30–45 ° | Affects tablet movement and spray coverage. |
| Temperature Range | 20–80 °C | Inlet air temperature; too high may damage heat-sensitive coatings. |
| Air Flow Rate | 500–5000 m³/h | Ensure adequate drying and solvent exhaust. |
| Spray Rate | 5–50 mL/min | Too high causes sticking; too low leads to uneven coating. |
| Spray Pressure | 0.2–0.6 MPa | Affects atomization and droplet size. |
| Motor Power | 1.5–15 kW | Depends on drum size and load. |
| Power Supply | 380 ±10% V AC | Three-phase; other voltages available on request. |
| Ingress Protection | IP54–IP65 | Higher IP for washdown environments.IEC 60529 |
| Material Grade | 304/316L | 316L for corrosive or sterile processes.ASTM A240 |
| Weight | 500–5000 kg | Affects installation and floor loading. |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
| pressure: | Atmospheric to 0.5 bar (slight positive pressure for containment) |
| flow rate: | 5-50 L/min (coating solution spray rate) |
| temperature: | 20-80°C (typical coating process range) |
| slurry concentration: | 5-25% solids (polymer coating suspension) |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
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The coating drum is typically made of stainless steel. The source data lists material grades 304 and 316L, with 316L recommended for corrosive or sterile processes. The specific grade should be confirmed with the manufacturer based on the application.
Rotation speed influences tablet movement and mixing. Higher speeds are suitable for smaller tablets, while lower speeds may be needed for larger or fragile tablets. The speed must be adjusted to ensure uniform coating without damaging the tablets.
The coating angle affects tablet movement and spray coverage. An optimal angle ensures that tablets are exposed to the spray uniformly and that the coating solution is distributed evenly. The angle is typically set between 30 and 45 degrees.
The ingress protection (IP) rating indicates the level of protection against dust and water. In washdown environments, a higher IP rating (e.g., IP65) is necessary to prevent damage from cleaning processes. The required rating depends on the installation environment and should be confirmed with the supplier.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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