20L ROTARY EVAPORATORSpace-saving model for use
in the laboratory
Model N-4100 / 4100H / 4100W
The model series include 20L sample
flask and single or dual 10L receiving
flasks as standard.

Sample flask
Diameter
φ100 ㎜

10L

20L

Replaceable with
optional 10L
sample flask
Bath heater capacity

3.5kW
Temperature control rangeRT10 to 180­
(Bath for water or oil)

Built-invacuum controller

Footprint: 1060W × 570D (mm)N-4100NVCнPowerоLeak

Vacuum controller

Rotation and temperaturecontroller

Vacuum control function

Safety cover

Flask base

Dual receiving flasks

The vacuum controller is programmed for
55 different of type solvents, including thosespecified in environmental regulations.
By selecting the type of solvent in the vacuum
controller, the vacuum will be appropriately
controlled, allowing efficient solvent recovery.

A safety cover is provided as
standard equipment toprevent hair or clothes fromgetting caught during rotation.

нThe combination of flask
base and one-touch clamp
makes it easy to attach anddetach sample flasks.
оThe height of the bath canbe set to 800 mm for easy
attachment/detachment
operation (bath: 800-1000mm). Easy to change to 10L
sample flask (optional).

Model N-4100W is equippedwith two receiving flasks,
allowing the distillate to bedischarged from the receiving
flask without stopping theequipment during concentration.
Since the vacuum conditions
hardly change, continuous
concentration can be performed
under stable conditions.

TOKYO RIKAKIKAI CO., LTD.

N-4100W

N-4100 / N-4100H Å1281208 / 281650

Sample flask

Round shaped flaskӠ20L (Diameter 100mm)

Rotation speed range

10 to 140rpm (Continuous variable speed)

Evaporation capacity
Ultimate vacuum20L Standard system

Max.4.0L/h (Water)
4.6hPa(3.5Torr) or less

2.6hPa(2Torr) or lessTemperature control range

Room temperature+10 to 180­ӡWater or oil)Temperature control accuracy±1­/±3­(with water/oil, when flask rotating)

Vacuum control

Constant (1 to 760 Ӂ Hg/1 to 1013 hPa), Programmable (pre-set internally for each
representative solvent), Auto (temperature sensor optional), Step control

Receiving flask

Round shaped flaskӠ10L(with drain valveӢ (Model W: 2pcs)

Stand basewith / without

Bath dimension, capacityand material

ID430×250㖁Ӂ , approx. 40L, Stainless steel

Connection diameter

Suction/cooling water nozzle: OD16 mm, Vacuum pump connectionnozzle (vacuum control solenoid valve): Nozzle OD 13 mm

withOuter dimensions(mm) 1060W×570D×1910H / 1570H

1170W×700D×1910H

WeightApprox.141kg / Approx.118kg

Power input and supply voltage

17 to 18A, 3.9 to 4.3kVA, 230 to 240V single-phase 50/60HzPower utility

System code: SYS09513

281218

Approx. 152kg

230VAC single-phase 23A capacityÅSpecifications are room temperature 20­, rated power supply voltage, 50Hz, and no load.
ÅEvaporation capacity varies depending on conditions such as degree of vacuum, bathtemperature and cooling water temperature.
ÅTemperature control range depends on the ambient temperature and evaporation rate.
ÅUltimate vacuum is based on the use of an oil-rotary vacuum pump.
ÅPower plug is not included. Å1: N-4100H (Cat. No. 281650) is 200VAC.

Product name
Rotary Evaporator
Low temp. circulator
Diaphragm vacuum pump
Cooling hose ID15mm, 5mx2 pcs
Vacuum hose ID9xOD21mm, 5m

ModelN-4100
CA-2610
N950

Cat. No.
281208270140251170174460119190ÅThe diaphragm vacuum pump N950 (sold separately) automaticallyoperates according to the operating status of Model N-4100 when thevacuum pump and N-4100 are connected by the dedicated power cord.

DataFactory options

Model N-4100J (N-4100 with power failure supported specification)
Cat. No. 281660
Model N-4100WJ (N-4100W with power failure supported specification)
Cat. No. 281680
Model N-4100HJ (N-4100H with power failure supported specification)
Cat. No. 281670

ÀHeating curvesTemperature䠄䉝䠅Power failure supported specification (with automaticbath descending function during power failure)ÀEvaporation capacity curve

200
180
160
140120100
806040200

䞉Silicone oil (KF-54)
Set temperature 180䉝, rotation speed 70rpm

Measuring point
䚷䚷Bottom of bath䚷䚷Bottom of sample flask䠄100䟚 or less)䞉WaterCondition
䞉RT 20䉝
䞉200V䚷50Hz

102030

Set Temperature 80䉝, rotation. 100rpm

40 50 60Time(min)Measuring point
䚷䚷Bottom of bath䚷䚷Bottom of sample flask䠄100䟚 or less)

Evaporation speed（L/h）

ModelCat. No.

4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.50

Condition: RT 20䉝

Rotation speed

䚷䚷140rpm
䚷䚷 60rpm

5 10 15 20 25 30 35t
t：Difference between the bath temp. （℃）
and the boiling point of the sample (water)※Sample injection/solvent discharge unit
Model IDU-1000
Cat. No. 259820

This option is used in combination with a medium-sized rotary evaporator.
The fiber-optic sensors installed in the sample flask and receiving flask detect
the increase or decrease in liquid volume of the sample and solvent, and allow
the sample to be injected into the sample flask and the solvent to be drained
from the receiving flask (PAT.) continuously without stopping the equipment(without releasing the vacuum). Significantly reduces the time required forconcentration.
光ファイバーセンサ

Fiber optic
sensorSampleflask

Fiber optic
sensorReceiving
flask

Capillaryfor
injection
Sampleinjection

Solvent
discharge

See the video
on N-4100

ՔUltimate vacuum: Ultimate vacuum of rotary evaporator + 3hPa
ՔSolvent discharge pump: Maximum discharge rate 0.8/0.96L/min(50/60Hz)
ՔOperating fluid temperature: 10 to 40°C
※Vessels for sample injection and solvent discharge are not included.
※Acid samples cannot be used.

TOKYO RIKAKIKAI CO., LTD.
https://eyelaworld.com

TN Koishikawa Bldg.
1-15-17 Koishikawa
Bunkyo-ku, Tokyo
112-0002 Japan

Tel: +81-3-6757-3378
Fax: +81-3-3868-6571
E-mail: contact@eyelaworld.com⃸The appearance and specifications of the products are subject
to change without notice.