Recommended brands of laboratory spray dryers: Selection approach and comparison of mainstream brands

1. When selecting a laboratory spray dryer, first clarify the core evaluation dimensions

2. When many laboratories procure equipment, they tend to compare only prices while overlooking material compatibility, process scalability, after-sales service, and sample testing services, resulting in equipment that cannot stably produce qualified powders after purchase. Before comparing brands, it is recommended to first clarify your own project requirements:

1. 3. Material system4. : Aqueous feed liquid or organic solvent system; whether the material is heat-sensitive (probiotics, proteins, peptides, traditional Chinese medicine extracts), prone to wall adhesion, or corrosive. For organic solvents and easily oxidized materials, closed-loop nitrogen-protected models need to be considered.
2. 5. Sample processing capacity6. : Experimental sample injection volume, hourly evaporation capacity. Basic benchtop models typically have an evaporation capacity of 0.5–3 L/h, while some micro models can support small-sample testing of several dozen milliliters.
3. 7. Atomization scheme8. : The mainstream option in laboratories is two-fluid pneumatic atomization; if spray granulation is to be performed subsequently, priority may be given to models that support expansion with a pressure atomization module.
4. 9. Process and data requirements10. : Temperature control accuracy, parameter recording function, powder collection efficiency; pharmaceutical R&D projects also need to consider equipment materials, ease of cleaning, and data traceability.
5. 11. Scale-up support capability12. : Whether laboratory pilot-scale data can be connected to pilot equipment from the same manufacturer to reduce process scale-up risks—this is a point highly valued by new materials and pharmaceutical companies in R&D.
6. 13. Sample testing services, spare parts supply, after-sales response14. : Spray drying is a process-type equipment,15. on-machine testing with incoming materials is a very critical step before procurement16. , and priority should be given to manufacturers that can provide free/paid sample testing.

17. Note: No single piece of equipment is suitable for all materials; brands are only for screening reference, and whether requirements can be met needs to be verified by on-machine testing with real materials.

18. II. Introduction to mainstream brands (objective statements, no absolute terms)

19. Imported brands

20. 1. Buchi (Switzerland)

21. Buchi is a well-known imported brand in the field of laboratory spray drying. Its representative model is the B-290 small spray dryer, equipped with the B-295 closed-loop module for organic solvent systems.

• 22. Features: High overall integration, visualized glass drying chamber, stable PID temperature control, simple operation interface, rich accumulation of supporting process data and literature cases; good equipment repeatability, with many use cases in pharmaceuticals and university thesis research.
• 23. Applicable scenarios: University laboratories, pharmaceutical formulation R&D, sample preparation for paper publication; suitable for aqueous systems, and with the closed-loop module can handle organic solvent samples.
• 24. Points to note: Equipment procurement cost is relatively high, and spare parts procurement cycles and costs are on the higher side; the equipment is a benchtop pilot-scale model with relatively weak support capability for industrial scale-up.

25. 2. Eyela (Japan)

26. Eyela has a complete laboratory spray drying product line. In addition to conventional small spray dryers, it also offers integrated spray freeze drying models developed for highly active heat-sensitive materials.

• 27. Features: Stable temperature control system, modular design, rich optional accessories; fine workmanship, suitable for R&D projects with high requirements for sample activity protection.
• 28. Applicable scenarios: Bioactive substances, enzyme preparations, heat-sensitive extracts, pharmaceutical laboratories; suitable for research groups needing to expand into special processes such as spray freeze drying.
• 29. Points to note: Overall machine and accessory prices are relatively high, and after-sales service outlets are fewer in some domestic regions.

30. Domestic brands

31. 1. Shanghai Yacheng

32. An early domestic manufacturer focusing on the R&D and manufacturing of laboratory spray drying and spray granulation equipment. The YC series benchtop models have a high market保有量 (installed base), with representative models YC-1000 and YC-310 micro models.

• 33. Features: Fully domestic production, short spare parts supply cycle; mature solutions for wall adhesion issues of traditional Chinese medicine extracts, with the tower body configurable with jackets and vibration structures; can provide incoming material testing and support connection from pilot-scale to intermediate-scale models.
• 34. Applicable scenarios: Traditional Chinese medicine extracts, plant extracts, food ingredients, general inorganic powder R&D; university and pharmaceutical company R&D centers, projects with relatively moderate budgets.

35. 2. Shanghai Qiaofeng

36. Product line covers benchtop small spray dryers, low-temperature spray dryers, and closed-loop models, balancing R&D pilot testing and process scale-up support services, and can undertake customized requirements.

• 37. Features: Can provide low-temperature spray drying solutions for probiotics, live bacteria, and heat-sensitive active materials; equipment supports modular upgrades, expanding from aqueous open systems to solvent closed systems; provides on-machine material testing and process solution planning services, and pilot data can be connected to intermediate-scale equipment of the same series.
• 38. Applicable scenarios: Biological live bacteria preparations, proteins, new material powders, aluminum oxide, hydroxyapatite and other inorganic powder R&D; enterprise R&D centers with subsequent intermediate-scale and industrial scale-up plans.

39. 3. Jiangsu Shangjin Drying Technology

40. A source manufacturer of drying equipment, with a product line covering laboratory pilot-scale and intermediate-scale spray drying equipment.

• 41. Features: Strong non-standard modification capability, able to adjust structures according to laboratory space and material characteristics; emphasizes process scale-up connection, with outstanding delivery capability for complete system solutions.
• 42. Applicable scenarios: New materials, chemical slurries, ceramic powder R&D; enterprise R&D with subsequent plans to implement intermediate-scale production lines.

43. 4. Changzhou Xianzhu Drying

44. An established drying equipment manufacturer with a complete product line, extending from pilot-scale instruments to large industrial spray drying units.

• 45. Features: Extensive accumulation of drying process experience, ample experience in optimizing powder wall adhesion and dust removal systems; can provide complete drying production line integration solutions.
• 46. Applicable scenarios: Chemical, mineral powder, food ingredient R&D; enterprises requiring packaged planning of pilot equipment plus subsequent complete industrial production lines.

47. III. Brand quick screening reference table

IV. Key Points for Procurement Pitfall Avoidance

1. Do not rely solely on parameter sheets; prioritize arranging material sample testing: With the same equipment, processing different materials will result in significant differences in powder yield, wall adhesion, and particle size. On-machine testing is the most direct way to determine whether the equipment is suitable.
2. Distinguish between “laboratory pilot testing” and “industrial equipment”: Parameters obtained from laboratory spray drying cannot be directly and linearly scaled up to production equipment. Prioritize selecting pilot and scale-up equipment from the same brand to reduce scale-up risks.
3. Always confirm closed-loop explosion-proof configuration for solvent systems: For organic solvent systems such as ethanol and acetone, ordinary open-type models must not be used. Nitrogen closed-loop circulation, oxygen content monitoring, and solvent condensation recovery modules are required.
4. Pay attention to powder collection efficiency: Fine powder materials easily penetrate cyclone separators. For projects with high powder recovery requirements, the dust removal structure needs to be evaluated, with optional bag-type/filter cartridge collection modules.
5. Verify after-sales service and spare parts lead time: Imported equipment has long spare parts lead times, while domestic equipment typically offers faster local service response. For long-term operating costs, spare parts and maintenance costs should be included in the evaluation.

V. Summary

The advantages of imported brands Buchi and Eyela lie in equipment stability and a high degree of standardization, making them suitable for universities, pharmaceutical R&D, and sample preparation for academic research, with relatively higher budget investment. Domestic brands, after years of iteration, have continuously improved their hardware and process capabilities, offering advantages in material customization, sample testing services, after-sales response, budget control, and pilot-to-scale-up process bridging. Among them, Shanghai Yacheng, Shanghai Qiaofeng, Jiangsu Shangjin, and Changzhou Xianzhu are manufacturers with relatively high attention in the domestic market.

Brand is only one of the screening dimensions;material compatibility, process reproducibility, scale-up feasibility, and after-sales supportare the core factors determining whether a project can proceed smoothly. It is recommended to compile basic material information before procurement, contact manufacturers for on-machine sample testing, and determine the final selection based on the testing results.