Pilot & Small Scale Spray Dryers
ProTrus offers pilot and small-scale spray dryers tailored for laboratory-scale trials, formulation testing and product development. Designed for flexibility, precision, and energy efficiency, our systems enable fast transition from concept to production.
Our Spray Dryers
B 230 Pilot Spray Dryer
Sample composition:
water
Evaporation capacity:
max. 6 kg/h H2O
Maximum inlet temperature:
250 °C standard, 350 °C optional
Configuration:
co-current, mixed-flow
Atomizing system:
2-fluid nozzle, rotary atomizer
Final particle size:
5-80 µm
Exhaust gas cleaning:
bag filter
B 230-FZ Pilot Spray Dryer
Sample composition:
water
Evaporation capacity:
max. 6 kg/h H2O
Maximum inlet temperature:
250 °C standard, 350 °C optional
Configuration:
co-current, mixed-flow
Atomizing system:
2-fluid nozzle, rotary atomizer
Final particle size:
5-80 µm
B 230-C Closed Cycle Spray Dryer
Sample composition:
water, organic solvents
Evaporation capacity:
max. 6 kg/h H2O, higher for organic solvents
Maximum inlet temperature:
250 °C
Configuration:
co-current, mixed-flow
Atomizing system:
2-fluid nozzle, rotary atomizer
Final particle size:
5-80 µm
Exhaust gas cleaning:
bag filter
ATEX:
Zone 2/22
Pharma Spray Dryers
Sample composition:
water, organic solvents
Maximum inlet temperature:
200 °C
Configuration:
co-current, mixed-flow
Atomizing system:
2-fluid nozzle, rotary atomizer
Final particle size:
5-80 µm
Exhaust gas cleaning:
HEPA filter, bag filter
ATEX:
Zone 2/22
Qualification:
GMP documentation
Precision Solutions from Lab to Production
Unopex’s range of Mini and Pilot Spray Dryers are designed for research, product development, and scalable small-batch production. Whether you’re developing encapsulated nutraceuticals or functional food powders, these dryers provide laboratory-level precision and seamless transition to pilot and industrial scale.
Each unit—from the Unopex B 15 Mini Spray Dryer to the Unopex B 230 Pilot Scale Spray Dryer—offers a reliable and reproducible process thanks to advanced controls, flexible atomization systems, and compatibility with aqueous and solvent-based feeds.
Smart Control & Safe Operation
All Unopex spray dryers are equipped with intuitive touchscreen panels, PID-controlled heating, and CE-compliant safety systems. Accessories such as dehumidifiers (B 45) and inert cycles (B 60) expand the system’s capability for solvent recovery and microencapsulation, making them ideal for sensitive formulations.
Ready to configure your unit? Contact us today for expert support and tailor-made solutions to fit your R&D or pilot-scale production goals.
Contact Form
Designed for Versatility
From food and pharma to biotech and ceramics, Unopex spray dryers support a wide range of industries. Options like closed-cycle nitrogen drying, high-performance cyclone separators, and scalable evaporation capacities (1.5–6 kg/h) make them a reliable partner in formulation and scale-up workflows.
Advanced Features at a Glance
- Models: B 15 (Mini), B 230 (Pilot)
- Evaporation Capacity: 1.5–6 kg/h (water)
- Atomization: 2-fluid nozzle or rotary atomizer
- Materials: Borosilicate glass, stainless steel 1.4401 / 1.4404
- Drying Temp.: Up to 220°C (Mini), 350°C (Pilot optional)
- Safety: HEPA filters, explosion protection, nitrogen cycles
- Applications: Food powders, herbal extracts, active agents, ceramics
Scale Spray Drying for Innovation
Unopex B 15 Mini Spray Dryer is perfect for initial trials, microencapsulation, and feasibility studies. Its plug-and-play structure, automatic nozzle cleaning, and clear glass chamber ensure fast setup and efficient operation—even with small or sensitive batches.
From Feasibility to Production: B 230 Pilot Spray Dryer
Designed for scale-up, the Unopex B 230 Pilot Dryer is suited for semi-commercial runs and R&D validations. Co-current or counter-current airflow, rotary atomizer compatibility, and optional ATEX compliance ensure smooth scale transition while maintaining product integrity.
Closed-Cycle Spray Drying with Organic Solvents
The Unopex B 230-C supports inert gas drying for solvent-based feeds—perfect for pharma and cosmetics. The nitrogen cycle with solvent recovery guarantees explosion-safe, oxygen-free operation, minimizing inert gas consumption and maximizing safety.
Complementary Equipment for Greater Flexibility
Accessories like the B 45 Dehumidifier and B 60 Inert Cycle enable stable humidity control and organic solvent handling. The B 92 Spray Chilling unit even allows conversion of molten materials into powders at lab scale.
Ready to scale your spray drying process?
Partner with Unopex to access precision drying technology, application expertise, and global support—designed to take your R&D to the next level.
Get in Touch Today
Get in touch today to explore how our dairy processing solutions can elevate your production efficiency and product quality.