RE-501 5L Rotary Evaporator

The RE-501 Rotary Evaporator is a high-performance laboratory distillation system designed for efficient solvent recovery and compound purification. With its 5L evaporation flask capacity, this rotary evaporator (rotovap) delivers exceptional productivity for medium-scale applications in pharmaceutical, chemical, and research laboratories.

Featuring a precision temperature control system (-50°C to 180°C) and vacuum optimization capabilities, the RE-501 ensures rapid evaporation rates while preserving heat-sensitive compounds. Its compact design integrates a vertical lifting mechanism and PTFE+fluororubber sealing system, making it ideal for laboratories prioritizing space efficiency and leak-proof operation.  

Key Features of the RE-501 5L Rotary Evaporator  

1. Advanced Temperature Control: Digital PID thermostat maintains ±1°C accuracy for consistent heating bath performance.  

2. High-Efficiency Condenser: Large-surface spiral condenser with 2L/hour evaporation capacity.  

3. Safety-First Design: Automatic lift-stop function prevents flask collisions.  

4. Corrosion-Resistant Construction: All-glass components use GG-17 borosilicate glass.  

5. Intelligent Vacuum Management: Built-in vacuum gauge with automatic pressure regulation.  

6. Energy-Saving Motor: Brushless DC motor operates at 0-90 RPM with <50dB noise.  

Applications of the 5L Rotary Evaporator  

The RE-501 excels in:  

1. Pharmaceutical Production: Concentrating active ingredients and recovering solvents.  

2. Essential Oil Extraction: Gentle removal of extraction solvents from delicate botanicals.  

3. Chemical Synthesis: Purifying reaction products and isolating intermediates  

4. Food Science: Developing flavor concentrates and analyzing food additives.  

5. Academic Research: Conducting solvent recycling studies and material science experiments.  

Particularly effective for processing medium-viscosity liquids like DCM, ethanol, and acetone, this 5L rotovap meets GMP standards for traceability in regulated industries.  

Case: Optimizing Cannabis Extract Purification  

A Colorado-based cannabinoid producer upgraded to the RE-501 rotary evaporator to address their ethanol recovery challenges. Previously using a 3L system, they faced:  

40% longer processing times for 5kg batches.  

15% solvent loss due to inefficient condensation.  

Frequent glass joint failures.  

After implementing the RE-501:  

Batch processing time reduced by 35%.  

Ethanol recovery rate improved to 98.2%.  

Zero seal replacements in first 6 months.  

The enhanced temperature control also enabled preservation of heat-sensitive terpenes, increasing final product value by 22%. Maintenance costs decreased by $8,200 annually through reduced downtime and part replacements.  

Maintenance Guide for RE-501 Rotary Evaporators  

Daily:  

Wipe glass surfaces with 70% ethanol solution  

Check PTFE seals for particulate contamination  

Weekly:  

Lubricate lift rail with silicone grease  

Test vacuum pump oil clarity  

Monthly:  

Calibrate temperature sensor using reference thermometer  

Inspect condenser coils for mineral deposits  

Annual:  

Replace motor brushes (if applicable)  

Professional inspection of electrical components  

Always use original manufacturer replacement parts to maintain warranty coverage. Store glass components vertically in foam-lined cabinets to prevent stress fractures.  

FAQs  

1. Q: Why is my vacuum unstable?  

A: Check for seal degradation or condenser temperature fluctuations  

2. Q: How to prevent bumping?  

A: Maintain bath temperature 15-20°C above solution boiling point  

3. Q: Condenser efficiency declining?  

A: Clean with 10% citric acid solution to remove scale  

4. Q: Motor RPM inconsistent?  

A: Verify power supply stability (±10% voltage tolerance)  

5. Q: Glass joints sticking?  

A: Apply thin layer of silicone grease before assembly