Rotary evaporator for solvent evaporation
Achieve precise solvent recovery and concentration control with this rotary evaporator, essential for processes requiring gentle thermal treatment and efficient volatile compound evaporation.

Facilitates Evaporation, Crystallization, and Drying Processes
The QVF® ROTADEST from De Dietrich Process Systems is a versatile rotary evaporator designed for industrial applications in pharmaceuticals, fine chemicals, and bio-pharmaceuticals. This unit excels in gentle but efficient evaporation, crystallization, and drying of liquids, powders, and granules. Utilized in applications such as active pharmaceutical ingredients and synthetic amino acids, it handles operations ranging from batch to continuous, even in EX-rated zones. Featuring a rotating spherical flask made from corrosion-resistant borosilicate glass 3.3, the ROTADEST allows for effective thermal treatment with minimal energy consumption, owing to its electrically heated, height-adjustable bath. It ensures optimal mixing and evaporation rates through its seamlessly integrated PTFE-lined drive system. Configurable for semi-continuous and manual control, it includes advanced instrumentation for precise monitoring and logging, with EX-rated versions available for hazardous environments. The unit supports seamless integration into existing production lines with materials adhering to FDA guidelines, ensuring high chemical compatibility and straightforward cleaning, aided by its mechanical design and optional CIP systems.
Benefits
- Enhances production efficiency by minimizing evaporation and drying time.
- Reduces operational costs and energy use with its optimized heating system.
- Ensures product integrity with gentle processing for temperature-sensitive compounds.
- Offers flexibility in hazardous areas, meeting EX-rated operation standards.
- Facilitates easy maintenance and cleaning, decreasing routine downtime.
- Applications
- D laboratories,Biofuels,Agricultural chemicals,Specialty chemicals,Fine chemicals,Organic chemicals,R,Biopharmaceuticals,Essential oils,Plant-based chemistry,Inorganic chemicals,Pharmaceuticals
- End products
- Active pharmaceutical ingredients,Phenol,Biodiesel components,Chlorine gas,Synthetic amino acids,Herbal extracts,Drug intermediates,Herbicide concentrates,High-performance pigments,Prototype chemical compounds,Lavender essential oil
- Steps before
- Mixing,Purification,Extraction
- Steps after
- Crystallization,Drying,Packing
- Input ingredients
- solvent,suspensions,powders,granulates,temperature-sensitive mediums,volatile media
- Output ingredients
- dry product,condensate,crystals,distillate
- Market info
- De Dietrich is renowned for manufacturing high-quality engineered-to-order (ETO) equipment, specializing in chemical process systems, glass-lined reactors, and filtration technologies, with a strong reputation for innovation, reliability, and safety in the chemical and pharmaceutical industries.
- Heating Bath Volume
- 50 l - 100 l
- Rotation Speed
- 0 - 82 min-1
- Drive Power
- 0.37 kW
- Heating Power
- 9 - 12 kW
- Temperature Range
- Heating Bath up to ~160°C
- Cooling Temperature
- ~15°C
- Vacuum Pressure
- ~10 mbar
- Evaporation Flask Volume
- 50 l - 100 l
- Seal Type
- PTFE/Ceramic
- Material
- Borosilicate Glass 3.3 / PTFE
- Working Mechanism
- Rotary evaporation with film evaporation
- Evaporation Rate
- Higher than non-stirred glass distillation
- Batch vs. Continuous Operation
- Semi-continuous/Batched
- Automation Level
- Manual / Electric motor with frequency converter
- Foam Prevention
- Reduced bubbling
- Vacuum Handling
- Low vacuum through PTFE/ceramic-seal
- Ex-rated Area Compatibility
- Zone 1 IIB
- Heating Bath Adjustment
- Height adjustable with hydraulic cylinder
- Temperature Range
- Up to 160°C heating bath
- Cooling System
- Condenser and optional distillate cooler
- Corrosive resistance (e.g. acids)
- Borosilicate glass 3.3,PTFE
- Biological compatibility
- FDA-approved materials
- Cleanability
- Easy to clean PTFE and glass surfaces
- Density/particle size
- Suitable for varied densities/particle sizes
- Abrasion resistance
- Highly resistant due to material choice
- Evaporation type
- Film evaporation
- Tank shape and size
- Rotating spherical flask,50l or 100l
- Feed method
- Gravity,pump,or vacuum
- Control panel type
- Operating touch panel
- Control panel type
- Operating touch panel
- Integration possibilities
- Data logging and remote control
- Heating bath type
- Height adjustable with hydraulic cylinder
- Rotation speed control
- Stepless adjustment with gear box
- EX-rated installation
- Up to zone 1 IIB