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Enteric Coating Machine
The Enteric Coating Machine is used to apply a protective coating layer on tablets, pellets, and granules. It is widely used in pharmaceutical and nutraceutical manufacturing, especially for products that require controlled release or additional protection during processing and handling.
This machine supports batch capacities from 5 kg up to 500 kg, making it suitable for both small-scale and large-scale production. Drum speed can be adjusted between 2 and 35 RPM, depending on the model and coating requirements, to maintain an even coating across all materials.
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- Controlled Enteric Coating Process: Applies a protective layer that resists stomach acid and dissolves in the intestine. This helps improve product effectiveness and protects sensitive ingredients.
- Hot Air Drying System: This machine provides airflow from 450 to 6600 m³/h, depending on the model. With proper drying, the coating layer sets correctly without sticking or uneven buildup.
- Compact Industrial Design: It has a compact, space-efficient footprint, suitable for installation in laboratories and full-scale production areas.
- Suitable for Multiple Applications: Can be used for pharmaceutical tablets, nutraceutical products, and coated pellets. This flexibility makes it useful across different industries.
- Best for Long Runs: Designed to maintain consistent coating performance over extended periods. This helps reduce interruptions during production cycles.
| Model / Parameter | JGB-5 / BG-10(C) | JGB-35 / BG-75(C) | JGB-150 / BG-150(C) | JGB-500 |
| Max. Capacity (kg): | 5 – 10 | 35 – 75 | 110 – 150 | 500 |
| Drum Speed (rpm): | 5 – 35 | 3 – 28 | 2 – 20 | 2 – 10 |
| Main Motor Power (kw): | 0.37 – 0.55 | 0.75 – 1.1 | 1.5 – 2.2 | 3.0 |
| Exhaust Power (kw): | 0.75 – 3.0 | 3.0 | 4.0 – 5.5 | 7.5 |
| Hot Air Capacity (m³/h): | 450 – 600 | 2500 | 3600 | 6600 |
| Overall Size (L×W×H) (mm): | 800×610×1050 | 1000×780×1500 | 1570×1250×2010 | 2050×1910×2250 |
Coated Spray Gun
Control Panel
Electrical Box
Tablet Coated Pan
What type of machine is suitable for enteric coating?
What type of machine is suitable for enteric coating?
- Perforated drum: Maximizes airflow through the tablet bed for fast, uniform drying.
- Precise spray & temperature control: Critical for uniform, defect-free enteric films.
- Anti-bearding spray guns: Prevents nozzle clogging and droplet spitting.
- Explosion-proof version: Required for organic solvent-based coatings.
Can water-based (aqueous) enteric coatings be used?
Can water-based (aqueous) enteric coatings be used?
Yes. Aqueous systems are safer, greener and more widely used.
- Requirement: Machine must have high-efficiency drying (strong airflow, perforated pan) to avoid over-wetting and sticking.
- Advantage: Lower fire/explosion risk; better GMP compliance.
How to ensure enteric coating quality (dissolution test pass)?
How to ensure enteric coating quality (dissolution test pass)?
- Uniformity: Low CV (<2%) for coating weight; use optimized baffling & airflow.
- Curing: Post-coating heat treatment (e.g., 40–60°C for 1–4h) to complete film formation.
- Process control: Monitor inlet temp (35–55°C), exhaust temp (30–45°C), spray rate.
- Validation: Run acid resistance (2h in 0.1M HCl) & intestinal dissolution tests.
Can small-batch R&D use the same machine?
Can small-batch R&D use the same machine?
Yes. Use lab-scale models (1–10 kg) with the same perforated pan & precise control as production machines.
What is the difference between enteric and standard film coating machines?
What is the difference between enteric and standard film coating machines?
- Enteric: Higher drying efficiency; stricter temp/atomization control; often explosion-proof.
- Standard film: Lower drying demands; wider process window.
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