LabTech EV400H Rotary Evaporator

Category Rotary Evaporator
Manufacturer LabTech
Country of manufacture China
Average customer rating based on 5 reviews

With an innovative and ergonomic design, the LabTech EV400H rotary evaporator includes a color digital display and adjustable control knob to monitor and control rotation speed and temperature and offers an innovative design to prevent corrosion and splashing. The EV400H is designed to operate on 115V/60Hz with a standard 115V US plug for use with similar electrical requirements. The unit includes vertical manual lift and has the option for online sample adding through a PTFE valve, granting high efficiency and easy operation. The color digital display and adjustable control knob allows for rotation speed from 20-260rpm. It can handle sample volumes in evaporation flasks ranging from 50-3000mL and has a 5L bath volume. The stand-alone heating bath supports both oil and water baths, has a temperature range of Ambient - 180°C, and is made from PTFE/Stainless Steel to guarantee safety and easy maintenance.


  • Automatic protection function that immediately switches off the unit in dry bath conditions
  • PTFE/FKM sealing offers protections against corrosion
  • Safety clamps are included for safe attachment of collection flask and evaporation flask
  • Includes a 1L evaporating flask, 1L receiving flask and vertical condenser as standard
  • Rotation speed 20-260 rpm.

Also available in a package with a H50-500 water chiller and a VP18R Plus vacuum pump

Key Attributes
Condenser type Vertical or Diagonal
Arm lifting Manual
Temp Range (°C) Ambient to 180
Max. Flask Size 3000 mL
Brand LabTech
Rotation speed 20-260rpm
Stroke: 150mm
Temp Accuracy (°C) ±1
Vacuum controller included No
Programmable No
Warranty (years) 1
Weight (lb) 51
Width (in) 15
Depth (in) 14
Height (in) 28


Manufacturer Specifications

Part No.                           LEW400H

Speed Range                  20 - 260 rmp

Temperature range       Ambient - 180℃

Temp. Control Mode     PID

Heating power               1300W

Bath material                  PTFE coating/SS 

L×W×H                             15×14×28 inches

Weight                              51  lbs

Power Supply                  115V, 60Hz


Does the LabTech EV311H come with glassware?

In addition to the selected condenser, all LabTech rotary evaporators come with a 1 liter collection flask, a 1 liter evaporating flask, and a 29/32 joint size vapor tube.


What is the minimum pressure the system will support?

EV311 series rotary evaporators can support an ideal minimum pressure of 0.0002mbar. However, most vacuum pumps don't have that low of a pressure capability so the minimum vacuum will most likely be limited by the vacuum pump you use.


What size tube is needed to attach to the cold water coil and vacuum ports on the condensers?

The condensers come with GL-14 thread size hose barbs which can accommodate tubing of 1/4" inside diameter.


I'm concerned about purchasing a rotary evaporator from China. What happens if it breaks?

LabTech has offices, including a warehouse and repair facilities, in Hopkinton, Massachusetts. If you experience any issues with your equipment which require repair, it will be performed by their staff in the United States.


I'm using an aggressive solvent and want to ensure it will not degrade the sealing ring. What is the sealing ring made of?

The sealing ring on all EV311 rotary evaporators is made of PTFE + FKM.


Is the LabTech EV311H UL certified?

No, the EV311 series of rotary evaporators are not UL listed.


What is the amperage of the EV311H rotary evaporator?

The EV311H requires 15 Amps.


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Customer reviews

based on 5 reviews

LabTech EV400H Rotary Evaporator Accessories