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Naka Liquid Control Co., Ltd. > Products Information > Single-component dispensers > RD-Type High-accuracy Constant-Volume Dispensing Units - Screw Pump Dispenser
Single-component dispensers

RD-Type High-accuracy Constant-Volume Dispensing UnitsScrew Pump Dispenser

RD-Type High-accuracy Constant-Volume Dispensing Units - Screw Pump Dispenser
  • Provides accurate metering across a wide range of liquid viscosities.
  • Features the Endless-Piston system for continuous, interruption-free discharge.
  • The suckback technique eliminates drooling and ensures a clean nozzle.
  • Simple, easily accessible mechanism for ease of maintenance.
  • Easily incorporated in automated machinery.

Specifications

Model No. 4RD6 3RD8 3RD10 3RD12
Theoretical
discharge
rate
0.12ml/
revolution
0.35ml/
revolution
1.15ml/
revolution
1.7ml/
revolution
Flow rate 0.6 -
18
ml/min.
1.75 -
52.5
ml/min.
5.75 -
172.5
ml/min.
8.5 -
255
ml/min.
Permissible
liquid
viscosities
Low to high
Permissible
liquid
temperature
range
- 20 - + 80
Atmospheric
operating
temperature
range
Ambient temperature: +10 - +40
Atmospheric pressure: 0.1MPa
Weight 2.5kg 2.5kg 2.8kg 3kg
Maximum
speed
150rpm
(Motor speed reduction ratio: 1:20)
Model No. 4RD6 3RD8
Theoretical
discharge
rate
0.12ml / revolution 0.35ml / revolution
Flow rate 0.6 - 18
ml/min.
1.75 - 52.5
ml/min.
Permissible
liquid
viscosities
Low to high
Permissible
liquid
temperature
range
- 20 - + 80
Atmospheric
operating
temperature
range
Ambient temperature : +10 - +40
Atmospheric pressure : 0.1MPa
Weight 2.5kg 2.5kg
Maximum
speed
150rpm
(Motor speed reduction ratio: 1:20)
Model No. 3RD10 3RD12
Theoretical
discharge
rate
1.15ml / revolution 1.7ml / revolution
Flow rate 5.75 - 172.5
ml/min.
8.5 - 255
ml/min.
Permissible
liquid
viscosities
Low to high 
Permissible
liquid
temperature
range
 - 20 - + 80
Atmospheric
operating
temperature
range
 Ambient temperature : +10 - +40
Atmospheric pressure : 0.1MPa
Weight 2.8kg 3kg
Maximum
speed
 150rpm (Motor speed reduction ratio: 1:20)
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