Ion CombiNEG 40-400 Pump

The Agilent Ion CombiNEG 40-400 integrates the high-capacity D400-2 non-evaporable cartridge inside the 40 L/s VacIon pump. The NEG cartridge provides extra pumping speed for active gases (up to 400 L/s hydrogen) and the StarCell ion pump provides high pumping speed for argon and other residual noble gases. Performance is further boosted by the optimized magnetic field and vacuum firing process, assuring minimum outgassing at low pressure. The inner shield preserves the NEG operating life.

This is the only pump that handles high amounts of noble gases, with the highest pumping speed and capacity for methane, argon, and helium. It is meant for demanding applications where extra pumping speed is required at ultrahigh and extreme high vacuum.

Product details Related Product


  • StarCell ion pump elements offer excellent pumping speeds for noble gases, and the NEG cartridge has a high pumping speed for reactive gases resulting in a high combined pumping speed for faster UHV/XHV pumpdown times
  • Sintered NEG cartridge, in a very compact design, provides a superior solution to lower-quality powder-pressed NEG cartridges, eliminating the risk of releasing powder into your system
  • Available with ConFlat 4.5² non-rotatable flange and ConFlat 2.75² flange for the NEG cartridge
  • Choice of feedthroughs in different orientations for maximum flexibility
  • No moving parts ensures vibration-free operation for sensitive applications
  • Low leakage current provides stable vacuum pressure reading
  • Low magnetic field minimizes system interference
  • Vacuum processed at >400 °C and pinched off under vacuum to ensure cleanliness and vacuum integrity prior to installation


Element Type
  • StarCell
  • Diode
  • SEM
Feedthrough Style
  • Fischer
Heater Power
  • 250 W
Heater Voltage
  • 100-120/200-240 V
Inlet Flange
  • 2 ¾ inch CFF (NW 35)
Maximum Baking Temperature
  • 350 °C
Maximum Starting Pressure
  • ≤5 x 10-2 mbar
Operating Life
  • 80,000 hours
Ultimate Pressure
  • < 1 x 10-11 mbar
Weight (pump only)
  • 17 kg
  • 37 lbs



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