Benelabo’s hot melt spray coating system couples to three fluid bed scales — mini, pilot and production — spraying molten coating materials that solidify on cooling, eliminating solvent handling and drying: one process for moisture protection, taste masking, enteric and controlled-release films.
Highlights
Molten waxes and lipids solidify under cooling air — no VOC compliance, no solvent recovery, no drying time.
Heated tank, insulated hose and temperature-controlled gun keep material above melting point, batch after batch.
Couple to your existing fluid bed with the retrofit package, or take complete mini/pilot/production systems.
Moisture protection, taste masking, enteric and sustained release — tuned by melt blend and film thickness in trials.
Applications
- Moisture protection for hygroscopic APIs
- Taste masking for pharma and nutraceutical pellets
- Enteric films with fatty-acid or polymer melts
- Food glazing: candy, nuts, cereals
- Agrochemical controlled-release granules
Product Images
Full Specifications
| Coupling scale | Fluid bed | Duty |
|---|---|---|
| Mini + melt unit | Lab mobile cart | Feasibility and formulation |
| Type-Ⅱ + melt unit | Pilot | Scale-up, parameter lock |
| DPL-120 + melt unit | Production | Sustained-release output |
| Retrofit package | Existing machine | Heated gun, hoses, temperature control |
FAQ
When should I use hot melt coating instead of solvent-based coating?
When the API is moisture-sensitive, the plant lacks solvent handling, or drying time and VOC compliance must go. The molten film solidifies on cooling — no solvent, no drying.
How do you prevent the melt solidifying inside the gun?
Material stays above melting point through heated tanks, insulated lines and a temperature-controlled gun designed against nozzle freeze-up.
Is it suitable for controlled-release pellets?
Yes — wax and polymer blends tune release by film thickness and composition, with moisture protection and taste masking in the same step.
Ready to verify on your material?
Send your formulation and target spec — a test plan and quotation come back typically within one working day.