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Product name

Rotary Evaporator (20L) 
Model N-4100 N-4100W  N-4100H 
Cat. No. 281208 281218  281650 
Stand Standard accessory – 
Rotation speed range 10 to 140rpm Stepless speed control
Evaporation capacity Max.4L/h (Water evaporation) 
Ultimate vacuum 2.6hPa (2Torr) or less 4.6hPa (3.5Torr) or less  2.6hPa (2Torr) or less 
Bath temperature control range RT+10 to 180°C(For water/oil) 
Bath temperature accuracy ±1°C(When using water and rotating the sample flask)
±3°C(When using oil and rotating the sample flask)
Temperature control PID control 
Temperature setting / display Digital setting (Membrane keypad input, minimum setting digit 1°C), LCD display (Bath temperature, vacuum, vapor temperature: optional)
Rotation setting / display Speed control method, LCD
Vacuum control function Fixed value control (1 to 760 mmHg/1 to 1013hPa), Program control (Pre-set internally for each representative solvent), Auto control (When vapor sensor is used: option), Step control 
Safety features Rotating motor overcurrent protection, Liquid expansion type independent overload protector, Earth leakage breaker, Jack overload protection, Heat-sensitive dry-heating protector, One-touch clamp section safety cover 
Bath jack mechanism Electric automatic jack (Automatic descent function during power failure: factory option N-4100J) 
Heater For temperature control 3.5kW 
Motor  Induction motor output 90W (Inverter control) 
Condenser Vertical triple spiral, Cooling surface 0.5m2 (Suction/cooling water threaded connection, S65 ball taper joint) 
Sample flask 20L round shaped flask (Flange diameter 100mm)  
Receiving flask 10L round shaped flask x 1pc with drain valve 10L round shaped flask x 2pcs with drain valve (3-way valve for atmosphere, vacuum, drain) 10L round shaped flask x 1pc with drain valve 
Vacuum seal Teflon® seal
Bath dimensions / capacity / material 430 ID x 240H (mm) / 34L / Stainless steel 
Connection port diameter Condenser (Cooling water nozzle 16mm OD / Cooling water nozzle 16mm OD)
Vacuum control valve (Connection nozzle 13 mm OD / Release valve nozzle 10mm OD) 
Ambient temperature range 5 to 35°C 
Outer dimensions (mm) 1060W x 570D x 1910H 1170W x 700D x 1910H  1060W x 570D x 1570H 
Weight Approx. 141kg Approx. 152kg Approx. 118kg 
Power input  17-18A, 3.9-4.3kVA, 230-240VAC, single phase, 50/60Hz 19-20A, 3.8-4.4kVA, 200- 220VAC, single phase, 50/60Hz