The GCD Series direct drive, oil rotary vacuum pump is corrosion resistant making it an ideal pumping solution for toxic and corrosive gases. Three different sizes are available from 50 to 200 L/min.


  • Chemical type of Oil rotary pump with surface treatment on the gas contact surface.
  • Connectable to oil filtration system.
  • Low noise and low vibration.
  • The backflow prevention mechanism prevents oil from flowing back to the vacuum chamber when it is stopped due to a power failure.
  • The exhaust speed is stable due to the installation of the forced oil supply mechanism.
  • Operation from atmospheric pressure is possible.
  • Easy connection with flanged parts and connection by knock pins on internal parts.


Model GCD-051X GCD-136X GCD-201X
Unit 50Hz 60Hz 50Hz 60Hz 50Hz 60Hz

Actual pumping speed

L/min 50 60 135 162 200 240

Ultimate pressure※1

Pa 0.67 0.67 0.67


6.7 6.7 6.7
Full load current Single phase, 100V, 200W, 4P, Split phase starting Single phase, 100V, 400W, 4P, Capacitor start/run Three phase, 200V, 700W, 4P

Oil capacity

mL 5.6 4.8 7.7 6.1 3.45 3.08

Recommended oil

500~800 1,000 1,100



Inlet port diameter

mm 14.1 25.4 26.6

Outlet port diameter

KF-25 KF-25 KF-25

Ambient temperature

7~40 7~40 7~40

Catalog Download

Chemical Type Small oil rotary vacuum pump GCD series