Rotary Evaporators

Rotary Evaporators

If you are searching for a pump for rotary evaporation applications, then this page will provide you with useful information on selecting the correct model. Pumps for rotary evaporators have many features and uses, which we have listed below:

• Built-in tuneable vacuum to control evaporation rate

• Three vacuum levels to meet your needs

• Rugged chemical duty construction to resist harsh vapors

DryFast PTFE dry vacuum pumps for rotary evaporators include essential features to ensure efficient rotary evaporation. The DryFast tunable vacuum adjustment allows the user to optimize the vacuum for the solvent being evaporated - see Application Note below. The tunable vacuum adjustment can also be used to stop accidental bumping/foaming.

Use 9 torr (12 mbar) DryFast models for common solvent evaporations. DryFast Ultra models offer 2 torr (2.7 mbar) ultimate vacuum to strip DMF fast along with other high boiling point and low boiling point solvents.

The rugged low maintenance oil free pumps have PTFE heads, perfluoroelastomer valves, and fluorinated plastic wetted surfaces, making DryFast a durable choice for solvent, acidic and basic vapors.

rotary-cheatsheet

 

Rotary-Model

 

Model 2014 Collegiate Single stage PTFE diaphragm pump with excellent flow for evaporations of solvents with atmospheric boiling points to 80 °C. Maximum vacuum is 40 torr(53 mbar), 35 l/min. Strip ethanol at 35°C.

Models 2034 / 2044 Research Two stage PTFE diaphragm pumps provide tunable vacuum to 9 torr(12 mbar) – perfect for evaporation of solvents with atmospheric boiling points to 110 °C.

Select Model 2044 (35 l/min) for evaporations up to 10 L flask. Strip DMF at 55?C, toluene at 35°C.

Models 2032 / 2042 DryFast Ultra Two stage PTFE pumps are excellent for all common evaporations, drawing a deep vacuum down to 2 torr(2.7 mbar) for solvents with atmospheric boiling points to 160 °C. Distills DMF rapidly at 35 °C.

Select Model 2042 (35 l/min) for evaporations up to 10 L flask. Strip DMF at 35°C, DMSO at 55°C.

 

Rotary-evap

 

• Anti-bumping / foaming feature with controlled evaporation rate

• Rugged corrosion resistant PTFE construction

• Self-cleaning for long life and repeatable performance

Self-Cleaning Dry Vacuum SystemsTM are complete vacuum solutions for rotary evaporation. All systems feature rugged corrosion resistant PTFE diaphragm pumps for low maintenance and long life. Optimize each solvent evaporation using handy vacuum adjustment. Also included with all models:

• Digital or analog vacuum read-out

• Inlet and outlet traps to protect the pump and exhaust line from liquids

• Prominent emergency "bump stop" switch for bumping/foaming control

• Automatic self-cleaning purge at shutdown

The self-cleaning feature and vacuum control technology contribute to Self Cleaning Systems’ long diaphragm life. All models are 35 l/min at 60Hz (29 l/min. at 50Hz).

Model 2025 analog vacuum read-out, vacuum regulator, 9 torr(12 mbar) ultimate vacuum for fast stripping of most common rotary evaporation solvents. Fast stripping of rotary evaporator solvents with boiling point < 110 °C.

Model 2026 adjustable high vacuum. Analog vacuum read-out, vacuum regulator, 2 torr(2.7 mbar) ultimate vacuum for fast stripping DMF and other solvents with boiling point < 160 °C.

Model 2027 digital adjustable high vacuum. Digital vacuum read-out, vacuum regulator, 2 torr ultimate vacuum for fast stripping DMF and other solvents with boiling point < 160 °C.

Model 2028 programmable high vacuum. Five user entered programs with one or two solvents and times, keyboard or electronic dial vacuum selection, digital vacuum display with menu enabled programming, 2 torr (2.7 mbar) ultimate vacuum for fast stripping of DMF and other solvents with boiling point < 160 °C.