Standard · Non-flameproof
For general-purpose installations.
Rotary Evaporators
Industrial rotary vacuum evaporation for solvent recovery and gentle concentration of heat-sensitive materials, available from 5 to 100 litres.
UD Technologies · Vadodara, India
Operating principle
Efficient, gentle thin-film evaporation.
Rotation spreads the feed into a thin, uniform film across the evaporating flask, increasing the heat-transfer area while avoiding local overheating. Vapour travels to the condenser and the recovered solvent collects in the receiver.
As the batch concentrates, rotation speed and bath temperature can be adjusted. Full-vacuum operation and optional vacuum control lower the boiling point, helping protect heat-sensitive products. The same principle supports concentration, crystallisation, drying and combined solid-liquid extraction.
Standard · Flameproof
For classified operating areas.
GMP · Non-flameproof
For validation-led production.
GMP · Flameproof
Validation and hazardous-area protection.
Salient features
Built around safe operation and process flexibility.
Configurations can be adapted to the feed, process duty, validation requirements and site safety classification.
Four production scales
Compact, mobile models are available in 10, 20, 50 and 100 litre sizes.
Custom glass assemblies
The distillation arrangement can be configured for the application and process.
Long-life vacuum sealing
A dry mechanical seal and glass or PTFE contact parts reduce downtime.
Single-person flask handling
A dedicated arrangement supports safer removal of the hot evaporating flask.
Operator-friendly controls
Microprocessor-based controls use clear, large digital displays.
Rugged instrumentation
Industrial instruments are selected for long service life.
Safety variants
Choose non-flameproof, flameproof or ATEX-compatible configurations.
Validation options
Standard and GMP models are available with supporting documentation.
Process-specific design
Glass arrangements can be adapted around client operating requirements.
Extraction combinations
Combo models support solid-liquid extraction followed by concentration.
Process guidance
Choose operating vacuum from the solvent boiling point.
Use the solvent chart to compare boiling points at different vacuum levels and coordinate bath, vapour and coolant temperatures.
Capacity-wise specifications
Compare 5, 20 and 50 litre rotary evaporators.
Open a model to review its construction, controls, safety provisions and process performance.
5 litre rotary evaporator
Rotary film evaporator — 5 litre
Designed for solvent removal and concentration of heat-sensitive materials. A rotary extractor variant combines solid-liquid extraction and concentration. For research work, 500 mL, 1 L and 2 L evaporating flasks can also be fitted.
Technical specifications
- Model
- RE–05-SW–02
- Electrical connection
- 230 V, 50 Hz, single phase + neutral
- Total power consumption
- 2 kW
- Rotation drive
- 0.18 HP, three-phase, weatherproof TEFC motor
- Bath lift
- 0.12 HP, three-phase, weatherproof TEFC motor
- Speed control
- 20–200 RPM, electronic control with digital display and frequency converter
- Heater
- 2 kW, weatherproof
- Bath heating control
- Electronic on/off control with PT-100 and digital display
- Bath movement
- Motorised
- Vapour temperature
- PT-100 with digital display
- Vapour-shaft seal
- Borosilicate glass and PTFE mechanical seal
- Bath temperature
- Up to 180°C
- Process timer
- Digital indication
- Control panel
- Push buttons, switches and electrical safety protection; weatherproof
- Bath construction
- Double-wall stainless steel with insulation
- Glass evaporation setup
- 5 L flask, 0.2 m² upward condenser, 2 L receiver with drain valve and Soxhlet extractor
- Housing and trolley
- Powder-coated mild steel with movable, lockable castors
- Supporting structure
- Powder-coated mild steel
- Flanges and gasket
- Powder-coated mild-steel flanges and 100% PTFE gasket
Alternative glass distillation assemblies are available. GMP, flameproof, SS 304 and SS 316 configurations can be supplied.
20 litre rotary evaporator
Rotary vacuum evaporator — 20 litre
An industrial configuration with selectable electrical supply, flameproof options and validation documentation.
Electrical
- Voltage
- 230 V or 200 V single phase; 440 V three phase
- Frequency
- 50 Hz; 60 Hz on request
- Power consumption
- 4.4 kW with a 4 kW heater
Safety and standards
- Flameproof standard
- Certified enclosures for Gas Groups I, IIA and IIB
- ATEX
- Compliant models available
- Safety-coated glassware
- Optional, except for the evaporating flask
- Over-temperature protection
- Independent monitoring circuit with manual reset
- Rotation protection
- Soft start and overload stop
- Bath displacement
- Travel limited by limit switch
Validation and display
- Validation
- GMP model available; FAT documentation provided
- Temperature display
- Bath and vapour temperature in 1°C steps
- Rotation display
- Set speed in 1 RPM steps
- Vacuum display
- Actual and set vacuum optional; 1 mm Hg steps
Performance
- Water condensation
- 3.5 L with a 40°C bath-to-boiling temperature difference
- Operating point
- 750 mm Hg vacuum at 90 RPM
50 litre rotary evaporator
Rotary film evaporator — 50 litre
Designed for duties ranging from standard evaporation to complex distillation with vacuum control. At a 40°C bath-to-vapour temperature difference, the system can distil approximately 5.5 L/h water equivalent or 16 L/h acetone.
Validation and display
- Validation
- GMP model available; FAT documentation provided
- Temperature display
- Bath and vapour temperature in 1°C steps
- Rotation display
- Set speed in 1 RPM steps
- Vacuum display
- Actual and set vacuum optional; 1 mm Hg steps
- Leakage rate
- Less than 1 mbar/minute
Materials of construction
- Gear head
- Powder-coated cast iron with SS 304 parts
- Heating bath
- Stainless steel 1.4301 / AISI 304
- Heating element
- Stainless steel 1.4301 / AISI 304
- Glass
- Borosilicate 3.3
- Product-contact materials
- FDA-compliant materials
Cooling
- Consumption
- 250–450 L/h depending on solvent, at 5°C temperature difference
- Pressure restriction
- Maximum 2.7 bar absolute without pulsation
Performance
- Water condensation
- 5.5 L with a 40°C bath-to-boiling temperature difference
- Operating point
- 750 mm Hg vacuum at 60 RPM
- Variants
- Four safety and validation combinations available
Discuss your requirements