Synthesis and processing
Unopex B15 Laboratory Spray Dryer
Single-step conversion of solutions, suspensions and emulsions into free-flowing powders of controlled size and morphology, for microencapsulation and granulation.

In short
Single-step conversion of solutions, suspensions and emulsions into free-flowing powders of controlled size and morphology, for microencapsulation and granulation. The Unopex B15 is a laboratory-scale spray dryer in which the liquid feed is atomised into fine droplets through a nozzle and dried within seconds in a stream of heated air to yield a dry powder.
- Drying principle
- Nozzle atomisation, co-current hot air flow
- Scale
- Laboratory scale; small batches and formulation development
- Controlled parameters
- Inlet/outlet temperature, feed rate, atomising gas, air flow
Services on this instrument
Spray Drying and Powder Engineering
from €2507–15 business daysRequest this serviceService details
Overview
The Unopex B15 is a laboratory-scale spray dryer in which the liquid feed is atomised into fine droplets through a nozzle and dried within seconds in a stream of heated air to yield a dry powder. Inlet and outlet air temperature, feed rate, atomising gas flow and drying air flow are controlled independently, allowing particle size, residual moisture, bulk density and morphology (solid sphere, hollow sphere or collapsed structure) to be steered. The dried powder is recovered in a cyclone separator, and the short residence time protects heat-sensitive actives. The system is used to produce granules from ceramic and battery precursor solutions, to convert nanoparticle suspensions into redispersible powders, to microencapsulate drugs, flavours, probiotics or oils in biopolymer matrices, and to prepare food and cosmetic powders with improved flow. Resulting powders are characterised by particle size, moisture, SEM and BET analysis.
Measurement principle
Capabilities
Single-step dry powder production from solutions and suspensions
Particle size and moisture control via inlet/outlet temperature and feed rate
Microencapsulation of drugs, flavours, probiotics and oils
Conversion of nanoparticle suspensions into redispersible powders
Free-flowing granule preparation from ceramic and battery precursors
Short-residence-time drying of heat-sensitive biomolecules
Suitable samples
Aqueous and solvent-based solutions
Nanoparticle and ceramic suspensions
Emulsions and oil-containing systems
Polymer and biopolymer solutions
Protein, enzyme and probiotic formulations
Food, plant extract and cosmetic raw materials
Technical specifications
| Drying principle | Nozzle atomisation, co-current hot air flow |
|---|---|
| Scale | Laboratory scale; small batches and formulation development |
| Controlled parameters | Inlet/outlet temperature, feed rate, atomising gas, air flow |
| Powder collection | Cyclone separator and collection vessel |
| Feed types | Solution, suspension, emulsion |
| Typical product | Micron-scale spherical or hollow particles |
Services on this instrument
Spray Drying and Powder Engineering
from €2507–15 business daysRequest this serviceService details
- Manufacturer
- Unopex
- Model
- B15
- Catalogue no.
- 10
Quick answers
Spray Dryer: key facts
What is Unopex B15 Laboratory Spray Dryer used for?
It is used for: Single-step dry powder production from solutions and suspensions, Particle size and moisture control via inlet/outlet temperature and feed rate, Microencapsulation of drugs, flavours, probiotics and oils, Conversion of nanoparticle suspensions into redispersible powders, Free-flowing granule preparation from ceramic and battery precursors, and Short-residence-time drying of heat-sensitive biomolecules.
Which samples can Unopex B15 Laboratory Spray Dryer analyse?
Suitable samples: Aqueous and solvent-based solutions, Nanoparticle and ceramic suspensions, Emulsions and oil-containing systems, Polymer and biopolymer solutions, Protein, enzyme and probiotic formulations, and Food, plant extract and cosmetic raw materials.
Which NAKTEM services use Unopex B15 Laboratory Spray Dryer?
Spray Drying and Powder Engineering.
What results do I receive?
Typical deliverables: Dried powder product (labelled, moisture-protected packaging), Process record covering inlet/outlet temperature, feed rate, atomisation setting and solids content, Yield calculation and mass balance, Product moisture, particle size and SEM morphology characterisation on request, and Process summary report (PDF).
Related services
Sample preparation and processing
Spray Drying and Powder Engineering
Laboratory-scale spray drying to convert solutions, suspensions and emulsions into free-flowing, spherical powders with controlled particle size and moisture.
Related instruments
Particle and surface characterization
HORIBA Partica LA-960V2 Laser Diffraction Particle Size Analyser
Laser diffraction particle size distribution from 10 nm to 5 mm in wet or dry dispersion, supporting powder specification, formulation and quality control.
Thermal, mechanical and rheology
Shimadzu MOC63u Halogen Gravimetric Moisture Analyser
Rapid gravimetric determination of moisture and volatile content in powders, granules, pastes and liquids by halogen heating and precision weighing.
Microscopy and imaging
ZEISS EVO 10 Scanning Electron Microscope with Oxford EDS Detector
Nanometre-scale surface morphology imaging with simultaneous elemental mapping by energy-dispersive X-ray spectroscopy.
Separation and purification
CRP-02A Cross-Flow (Tangential Flow) Membrane Filtration System
Fouling-resistant concentration, diafiltration and size-based fractionation of nanoparticle, protein and colloidal suspensions through MF and UF membranes.
Request analysis on this instrument
Tell us about your sample and the question. Our scientists confirm feasibility and propose a measurement plan.