Description
The MEDILAB Rotary Vacuum Film Evaporator, ‘Universal Diagonal’, is a precision-engineered system designed for efficient distillation, solvent removal, concentration, and purification under reduced pressure. Its diagonal configuration improves condensate flow and thermal performance, making it ideal for high-throughput laboratory and industrial applications. With robust mechanical components and high-grade borosilicate glassware, it ensures safe, reproducible, and high-purity evaporation processes across pharmaceutical, chemical, and research environments.
Key Features
- Efficient vacuum evaporation: Reduces boiling points, enabling rapid solvent removal with minimal thermal degradation.
- Diagonal design: Enhances condensate drainage and ensures stable performance for viscous or heat-sensitive samples.
- High-clarity glassware: Borosilicate Glass 3.3 offers excellent visibility, chemical resistance, and durability.
- Geared drive motor (220V): Smooth, non-sparking drive ensures vibration-free rotation and long service life.
- Variable speed regulation: Allows precise control for optimised evaporation rates.
- Thermostatically controlled water bath: Maintains uniform heating for accurate and consistent sample processing.
- Rack & pinion jack system: Enables effortless height adjustment of the evaporating flask.
- Double-coiled diagonal condenser: Ensures superior cooling efficiency and higher solvent recovery.
- Safety-enhanced design: Stable stand, secure joints, and heat-shielded components for safe continuous operation.
- Large receiver & evaporating flask options: Supports diverse sample volumes and workflows.
Material Specifications
- Material: Premium Borosilicate Glass 3.3
- Thermal Properties:
High resistance to thermal shock
Suitable for high-temperature water bath heating - Chemical Resistance:
Inert to most organic solvents, acids, and reagents
Non-reactive surface ensures purity of recovered solvents - Mechanical Properties:
High structural strength with stress-free precision joints - Compliance:
Conforms to ISO 3585, ASTM E438 Type I, DIN glassware standards
Technical Specifications
- Evaporating Flask Capacity: 800 mL (with ball joint)
- Receiving Flask Capacity: 1 L
- Drive Motor: Non-sparking geared drive, 220V
- Speed Control: Variable digital/analog controller
- Heating Bath: Thermostatically controlled stainless steel water bath
- Condenser: Double-coiled diagonal glass condenser with 3 ports for vacuum and cooling
- Frame Construction: Stainless steel support stand with jack arrangement
- Glass Assembly Positioning: Adjustable stainless steel rod for secure alignment
- Included Accessories:
Evaporating flask
Receiving flask
Diagonal condenser
Vacuum connectors
Feeding tube with Teflon pipe extension
Vapour path tube
Water bath - Packaging:
Export-grade foam-lined packaging
Separated compartments for glassware and mechanical parts
Shock-resistant outer cartons for international shipping
Handling & Precautions
- Safe Use:
Avoid operating without cooling water.
Ensure the vacuum pump and glass joints are securely connected.
Do not exceed the recommended flask rotation speed. - Cleaning Instructions:
Use non-abrasive cleaners; rinse with distilled water.
Remove residues immediately to avoid buildup. - Autoclaving/Heating Limits:
Borosilicate Glass 3.3 tolerates high temperatures; avoid sudden cooling.
The heating bath should operate within the manufacturer-recommended range. - Do’s:
Inspect for cracks before use.
Lubricate glass joints with suitable vacuum grease.
Keep the condenser free from blockages. - Don’ts:
Do not apply excessive vacuum beyond rated capacity.
Avoid bending or twisting glass tubing. - Best Practices:
Maintain pump oil and check seals regularly.
Store glassware in padded racks after cleaning.
Applications
- Pharmaceutical Research & Development: Solvent removal, concentration of extracts, formulation studies.
- Chemical Laboratories: Purification, distillation, and recovery of organic solvents.
- Biotechnology: Preparation of heat-sensitive compounds and concentration of biological samples.
- Academic & Research Institutions: Routine evaporation work for student and research labs.
- QC/QA Laboratories: Sample preparation for purity testing and analytical workflows.
- Food, Flavour & Fragrance Industries: Concentration of natural extracts and volatile compounds.
Why Choose MEDILAB
- 35+ Years of Expertise: Trusted manufacturer of laboratory glassware and scientific instruments.
- Exporting to 40+ Countries: Strong global presence with long-term international distributor partnerships.
- Export-Quality Manufacturing: Precision engineering, strict QC, and reliable performance.
- OEM & Private Labelling: Custom branding solutions for distributors and large buyers.
- Consistent Quality & Reliability: Durable components designed for demanding labs.
- Strong Packaging & Worldwide Supply: Safe, secure, and timely delivery for global markets.






