Laboratory evaporator EVA-EC series

rotaryfor solventswith stand

Köhler VLM evaporators are a cost-effective alternative to rotary evaporators and other concentrators when a large number of samples need to be processed. The evaporation of the solvent is accelerated by gassing with nitrogen, a method that is particularly gentle on samples that are sensitive to oxidation. The metal block thermostats serve to compensate for the evaporative cooling, thereby maintaining the temperature of the system. A complete evaporator system consists of the evaporator unit with motor-driven lift or a manually height-adjustable stand, the gas dosing unit and the metal block thermostat QS, EC, LS or VIS. In the lift version, this stands on a base plate that can be pulled out to the front, which makes changing the heating blocks or samples very convenient. After turning the EVA lift's gas dosing unit by 180°, the stainless steel cannulas or Pasteur pipettes (adapter plate required) can be easily inserted into the silicone holders from above. In the tripod version, the gas dosing unit can be removed and also fitted from above after turning it over. As an accessory, we supply cabinets that can be connected to a laboratory ventilation system if there is no space in the fume hood. It is also possible to pulse the nitrogen flow and switch it off after a preselected time. The EVA-EC complete systems for 48, 24 or 16 samples consist of: • Evaporator with gas dosing unit and motor-driven lift or tripod unit • EC thermostat with heating pan for exchangeable heating blocks, working temperature up to 130°C or 210°C • 1 heating block for 48, 24 or 16 standard test tubes Ø16 mm, drilling depth 65 mm