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Oerlikon / Leybold
Leybold / Oerlikon D90AC Dual Stage Rotary Vane Pump, D 90 Mechanical Vacuum Pump, PFPE Oil, Vacuum Pump Rebuild
Condition: Refurbished Need a repair?
MSRP Price: $4,149.87
Sale Price:$4,068.50
Temporarily Out of Stock
Call us for Availability
Item#: PN06683

Refurbished Fully rebuilt Leybold / Oerlikon D90AC (D90 D90AC) D-90AC Dual Stage Rotary Vane Vacuum Pump with KF 40 Inlet Flange and KF 40 Outlet Flange, R

12-Month Warranty

This item comes with a full 12 month warranty.

Financing Available

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Refurbished Leybold / Oerlikon D90AC Dual Stage Rotary Vane Pump, D 90 Mechanical Vacuum Pump, PFPE Oil, Vacuum Pump Rebuild

Fully refurbished Leybold / Oerlikon D90AC Dual Stage Rotary Vane Pump coupled with a KF40 Inlet Flange and KF40 Outlet Flange. This Leybold / Oerlikon Rotary Vane Pump has a peak pumping velocity of 53.7 cfm and a final pressure of 1 x 10-3 Torr. It has been thoroughly examined and is ready for broad range of applications within the research and industrial industries. The Leybold / Oerlikon D90AC Pump comes with an entire 12-Month Warranty.


  • Peak Pumping Speed: 53.7 cfm
  • KF40 Inlet Flange
  • KF40 Outlet Flange
  • Ultimate Pressure: 1 x 10-3 Torr.
  • This pump is fully rebuilt and comes with a FULL 12-MONTH WARRANTY!

Rotary Vane Pump Applications:

  • Gas analyzers
  • Leak detection
  • Mass spectrometers
  • Other spectrometers
  • Electron microscopes
  • Surface analyzers
  • Centrifuges
  • Sterilization
  • Electron tubes
  • Lamps
  • TV tubes (CRT)
  • Refrigeration
  • Air conditioning
  • Drying
  • Distillation
  • Metallurgy
  • Free drying
  • Ion implantation
  • Dry etching
  • Load-lock
  • Cryogenics
  • Gas recovery
  • Oxygen pumping


A rotary vane pump can be described as a positive-displacement pump that is comprised of vanes mounted to a rotor that rotates inside of an enclosure. In some instances these vanes can be of varying length and tensioned to maintain contact with the walls as the pump rotates.

The simplest rotary vane pump is a circular rotor revolving inside of a larger round enclosure. The centers of these two bands are offset, inducing eccentricity. Vanes are allowed to slide in and out of the rotor and seal on all edges, making vane chambers that do the pumping work. On the intake side of the pump, the vane chambers are increasing in volume. These increasing volume vane chambers are filled with fluid forced in by the inlet pressure. Inlet pressure level is actually the pressure level from the system being pumped, frequently just the atmosphere. On the exhaust side of the pump, the vane chambers are decreasing in volume, forcing fluid out of the pump. The activity of the vane drives out the same volume of fluid with each rotation. Multistage rotary vane vacuum pumps can reach pressures levels as low as 103 mbar (0.1 Pa).Visit the rotary vane pump wiki page for more information.



Service & Repair

AJVS Repair and Service of High Vacuum Equipment

A & J Vacuum Services provides repair service for all types of High Vacuum equipment. We perform Turbomolecular Pump repair, Turbo Pump Repair, Dry Pump repair, Vacuum Pump repair, Mass Spectrometer repair, Rotary Vane Pump repair, Vacuum Booster repair, and Leak detector repair. Our highly trained technicians have years of experience and guarantee the highest quality service.

We operate at our own full service repair facility in Clifton, NJ. We have invested in state-of-the-art equipment including; complete line of decontamination, cleaning, drying, balancing, vibration analysis and software to minimize failures. Our in-house machine shop is capable of machining various components, prototypes and housing conversions as needed.

We support all major manufacturers including Pfeiffer Vacuum, Alcatel / Adixen, Edwards Vacuum, Varian, Oerlikon / Leybod Vacuum, Vacuubrand, and Agilent Technologies.

Repair Steps

  1. Full incoming inspection and run up time check, vibration check, drive inspection.
  2. Full disassembly, decontamination and cleaning.
  3. Pump is balanced utilizing state-of-the-art equipment from the world leader in equipment balancing and analysis to reduce noise and vibrations and extend bearings life.
  4. Assembly and replacement of all necessary parts such as shafts, bushings, bearings, sleeves, O-rings, gaskets, seals, wicks, etc. Only parts that meet or surpass OEM specifications are used to ensure dependable highest quality service and long pump life.
  5. Final test and leak check. The pump in fully assembled condition is checked for vacuum seal. Leak test to 1 x 10-9 Mbar l/s. Vibrations are analyzed and test data is digitally recorded.

Every pump and instrument is extensively tested for 48 hours. During our final tests, we monitor total pressure, temperature, vibration and noise level utilizing newest testing technologies and techniques specified by OEM. Upon request, we can provide our customers with a pump down graph. Call us for your free repair estimate at 1-973-249-0854.

A&J Vacuum Services
16 Somerset Place
Clifton, NJ 07012
Customer Service
Phone: 973-249-0854
Fax: 973-249-0855
Phone & Store Hours:
8:00am to 5:00pm
Monday thru Friday EST
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