50L Rotary Evaporator: Features, Applications, Specifications and Price Guide
A 50L rotary evaporator is a practical choice for pilot-scale evaporation, solvent recovery, concentration, and gentle distillation. For laboratories moving beyond small-batch workflows, a 50 liter unit offers a balanced combination of higher throughput, better efficiency, and manageable operating control.
In This Guide
What Is a 50L Rotary Evaporator?
A 50L rotary evaporator is a large-capacity evaporation system designed to remove solvents from samples under reduced pressure while rotating the evaporating flask in a heated bath. Compared with small benchtop units, a 50 liter rotary evaporator is built for larger batches, pilot plants, extraction labs, chemical processing, and production support environments.
The principle is simple: vacuum lowers the boiling point, rotation increases the evaporation surface area, and condensation recovers the solvent efficiently. This makes the equipment suitable for heat-sensitive materials and for faster solvent removal than atmospheric evaporation.
Why is a 50L rotary evaporator often selected instead of a 5L or 10L model?
From a practical equipment selection perspective, the 50L size fits operations that need higher daily throughput, fewer batch changes, and more efficient solvent recovery. It is especially useful when a process has already moved beyond small R&D scale but is not yet at full industrial evaporation volume.
Why Choose a 50 Liter Rotary Evaporator?
Higher Processing Capacity
A larger evaporating flask reduces the need for repeated small-batch cycles. This helps improve workflow efficiency in extraction, distillation, and solvent reclamation operations.
Better Pilot-Scale Transition
A 50L rotary evaporator is often the bridge between laboratory development and production. It allows teams to validate process conditions at a more realistic operating scale.
Gentle Solvent Removal
With vacuum-assisted evaporation and controlled heating, sensitive materials can be handled more carefully than with open heating or conventional boiling methods.
Improved Solvent Recovery
Large condensers and properly matched chillers help recover valuable solvents more effectively, which can lower operating cost over time.
Key Specifications for a 50L Rotary Evaporator
Based on the provided technical parameter sheets, the 50L class is represented by models such as RE-5002 and R1050. While exact configuration can vary, the following specifications are highly relevant when evaluating a 50L rotary evaporator.
| Parameter | RE-5002 | R1050 |
|---|---|---|
| Evaporating Flask | 50L | 50L |
| Receiving Flask | 20L | 20L |
| Rotating Motor | 250W class | Brush-less 250W |
| Rotating Speed | 0–90 rpm | 20–120 rpm |
| Bath Power | 7000W / 9000W | Whole power 4.0 kW (220–240V) |
| Temperature Control Range | RT–99℃ (up to 250℃ noted) | Configured by system version |
| Evaporation Rate (Water) | >9 L/h | Pilot-scale high-efficiency configuration |
| Condenser | Vertical double condenser | High-efficiency reflux condenser |
| Lifting Mode | Manual bath lifting | Electric + hand lift |
| Lifting Height | 0–220 mm | 0–180 mm |
| Sealing Mode | PTFE, fluoro rubber sealing | Pilot-scale sealing system |
| Voltage | 380V / 50Hz | Three-phase 220–240V / 380V / 60Hz |
These numbers show why 50L units are positioned for demanding applications: stronger drive systems, larger bath power, larger condensers, and a much higher evaporation rate than small laboratory machines.
Common Applications of a 50L Rotary Evaporator
Solvent recovery in chemical laboratories and pilot plants
Ethanol evaporation and concentration for extraction workflows
Botanical extract concentration
Recycling of reusable solvents to reduce material cost
Concentration of reaction mixtures before further purification
Preparation steps for distillation, crystallization, or downstream processing
For users interested in the process background, the role of rotary evaporation in chemical workflows can be understood more clearly in this internal guide onrotary evaporator chemistry.
Can a 50L rotary evaporator be used for ethanol recovery?
Yes. In many pilot-scale applications, a 50L rotary evaporator is selected specifically for ethanol recovery because the larger flask volume, effective condenser, and compatible vacuum setup make the system suitable for repeated solvent reclamation cycles.
If the process is specifically focused on ethanol handling, this internal resource may also be relevant:ethanol rotary evaporator guide.
50L Rotary Evaporator Price Reference
According to the provided product price list, several 50L rotary evaporator related listings appear in a broad range depending on configuration, condenser type, lift system, and included accessories such as vacuum pump and chiller.
When there are multiple prices, the more reasonable middle lower option should be selected. Based on the supplied data, a practical reference price for a standard RE-5002 50L rotary evaporator is:
RE-5002 50L Rotary Evaporator: approximately US$2,545
This value aligns with the listed RE-5002 and multiple 50L rotary evaporator offers in the provided pricing sheet. Final price may vary according to electrical standard, condenser setup, explosion-proof requirements, and whether a full set includes a vacuum pump and recirculating chiller.
In real purchasing decisions, the cheapest listing is rarely the best reference. Buyers should compare condenser size, motor type, bath configuration, sealing quality, frame strength, and service support before making a decision.
How to Choose the Right 50L Rotary Evaporator
1. Check the Actual Throughput Requirement
A 50L rotary evaporator makes sense when batch volume, daily solvent load, or recovery target is too high for 10L or 20L equipment. Matching capacity to process demand helps avoid under-sizing and unnecessary production delays.
2. Evaluate the Condenser Design
A large rotary evaporator needs an efficient condenser to support rapid vapor capture. Vertical double condensers and high-efficiency reflux condensers are both common options for 50L systems.
3. Match the Chiller and Vacuum Pump
The evaporator alone does not determine performance. The chiller and vacuum pump must be matched properly to achieve stable evaporation speed, reliable condensation, and lower solvent loss.
4. Consider Lift Structure and Ease of Operation
At the 50L level, lift design matters. Electric lift or electric-plus-manual lift can make operation safer and more convenient, especially when the bath and glass assembly are larger and heavier.
5. Verify Material and Sealing Quality
PTFE and fluoro rubber sealing are important for corrosion resistance and vacuum stability. Good sealing directly affects performance, especially in long production cycles.
What usually matters more in a 50L rotary evaporator purchase: the lowest price or system matching?
System matching matters more. A 50L rotary evaporator performs best when the evaporator, condenser, bath, vacuum pump, and chiller are selected as a complete working set. A low initial price can become expensive if recovery speed, vacuum stability, or solvent condensation is poor.
Why the 50L Rotary Evaporator Remains a Strong Investment
The market demand for the keyword 50 liter rotary evaporator reflects a practical need: many laboratories and pilot-scale production teams need more than a benchtop instrument, but still require the flexibility, visibility, and gentle evaporation advantages of glass rotary systems.
A well-configured 50L rotary evaporator can support extraction, solvent recycling, concentration, and scale-up trials with good efficiency and process control. It is especially attractive for companies that need reliable daily operation without moving immediately to large industrial evaporators.
For readers comparing process basics and operation principles, another useful internal article is:how rotary evaporators work.
Final Thoughts on Choosing a 50L Rotary Evaporator
A 50L rotary evaporator is a strong choice for users who need larger evaporation capacity, dependable solvent recovery, and pilot-scale process flexibility. Based on the supplied technical data, the RE-5002 and R1050 class machines offer the core capabilities expected from this category: large flask volume, robust motor performance, strong heating support, efficient condensation, and practical lifting systems.
With a reference price around US$2,545 for a standard 50L configuration, this equipment category offers meaningful value for labs and processing teams ready to scale up.
View 50L Rotary Evaporator Product Details
