Oil Rotary Vacuum Pump PKS Series

The PKS series models are extremely durable, large oil rotary vacuum pumps with very stable pumping characteristics. High-grade cast iron is used, providing strength and resistance to abrasion. They are used in many applications, in areas ranging from the metal and automotive industries, to the chemical, pharmaceutical and food industries.



  • Robust and long life. Low speed rotation with few sliding parts.

  • Excellent abrasion resistance material are used.

  • Vacuum heat treatment furnace, sintering furnace, carburizing furnace

  • Solvent exhaust

  • High efficiency multi voltage motor (IE-3) which enable to use 200-240 / 380-460 V.

    * Please select the voltage of solenoid for oil circulation. * For PKS-070B with 200V class, a single voltage motor will be recommended.

  • For PKS-070B, bigger oiler and oil level gauge are introduced. Inspection hole for V belt is added.

  • Vacuum impregnation, casting

  • Large chamber exhaust


Model PKS-016 PKS-030 PKS-070B *1
Designed pumping
50Hz 96 m3/h
(1,600 L/min)
180 m3/h
(3,000 L/min)
420 m3/h
(7,000 L/min)
Ultimate pressure *2 GP Close 2.7 Pa
GP Open 400 Pa
Maximum water
vapor tolerance
GP Open 650 Pa 900 Pa 6000 Pr
Maximum water
vapor capacity
GP Open 5 g/h 7 g/h 12 g/h
Motor *3 Type of motor Totally enclosed fan cooled 3 phase induction motor
Energy efficiency
Power 2.2 kW(4 poles) 3.7 kW(4 poles) 11 kW(6 poles)
Voltage 50Hz 200 ~ 240 V / 380 ~ 415 V
60Hz 200 ~ 240 V / 380 ~ 460 V
Capacity 50Hz 10 kVA 15 kVA 65 kVA
60Hz 75 kVA
Oil *4 ULVOIL R-72
Oil capacity 6.5 L 8 L 20 L
Cooling method Air cooled Water cooled
Cooling water Primary side pressure ≦ 0.3 Mpa
Inlet / outlet differential
≦ 0.1 Mpa
Cooling water capacity 3 L/min 5 L/min
Cooling water temperature 5 ~ 30 ℃
Inlet port connection JIS B 2290 VG50 equivalent VG80 equivalent VG100 equivalent
Outlet port connection JIS B 2290 VF50 equivalent VF80 equivalent VF100 equivalent
External dimension WxDxH 587 x 884 x
572 mm
721 x 675 x
973 mm
971 x 983 x
1190 mm
Weight ( without pump and pump base ) 225 kg
( pump only )
380 kg
( pump only )
900 kg
( pump only )
Applicable standard CE, cTUVus
Standard accessory A dose of oil, a set of manual, Motor pulley 1 set
Option TM-2 TM-3 TM-4 ( S )
Oil mist trap, other oil types, gas ballast valve,
explosion-resistant motor,
special type for special application ( spec H and L )

Note)This specification uses SI measurement units.
  2.7 Pa = 2 × 10-2 Torr
*1 PKS-070B has been improved by changing the casting shape and adopting a large oil level gauge,
   a large capacity oiler,and a sealed belt cover with inspection view holes.
   There is no change in the mating dimensions and performance from the conventional model.
*2 Measured with a Pirani gauge. ( Apprx. 2.7 x 10-1 Pa when measured with a McLeod vacuum gauge. )
*3 Factory shipment setup is 200V class Δ delta connection. Please change it to Y connection if working
   voltage is 400V class.
*4 Other oil types are also available, please contact us.


Pumping Speed Curve




Dimension / Drawing