Pfeiffer
ACP28G
The Pfeiffer Adixen ACP28G dry vacuum pump is designed for pumping traces of corrosive gas. The Pfeiffer Adixen ACP28G uses a frictionless multi-stage roots design and requires an inert gas purge to protect its bearings. The Pfeiffer Adixen ACP28G operates on any input voltage from 90 to 254 VAC at 50 or 60 Hz.[1]
What it is
The Pfeiffer ACP28G is a dry roughing vacuum pump based on a multi-stage roots (rotary lobe) design. The pump is designed for operation without lubricants inside the pumping module. The ACP28G variant is intended for pumping traces of corrosive gas and requires an inert gas purge to protect the pump bearings.[4][3]
Dry pumps such as the ACP28G provide oil-free and particulate-free vacuum. The ACP28G has a pumping speed of 27 m³/h (16 cfm) and an ultimate pressure of 22.5 mTorr. The pump is air cooled and includes an integrated digital timer.[4][3]
The pump accepts input voltages from 90 to 254 VAC at 50 or 60 Hz via a single-phase integrated frequency converter. The ACP28G has a KF25 inlet and KF25 exhaust.[4][3]
How it works
The ACP28G includes a single-phase integrated frequency converter with automatic voltage range selection, which keeps rotational speed and pumping speed constant across the input range of 90 to 254 VAC at 50 or 60 Hz.[4][3]
The inert gas purge protects pump bearings from corrosive gases. The pumping module contains no lubricants, eliminating hydrocarbon backstreaming and particle generation from tip seals.[4][3]
What do the numbers mean?
Power & electrical1
Vacuum & pumping5
Configuration & options3
What does it need to run?
Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.
Where are the manuals?
Generated from public-source data on file. Enter your email to access — nothing is published; details are routed privately.
Not publicly documented
Field notes
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Frequently asked questions
Not publicly documented
The following facts about the ACP28G are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.
No publicly documented production dates or lifecycle milestones (introduction, end of production, EOL) for the ACP28G are on record.
Answerable by: OEM historical records or a trade-press announcement
No publicly documented variants, configuration options, or revision breakpoints of the ACP28G are on record.
Answerable by: an OEM product catalog or an engineer who ordered or specified the tool
The control-system platform and OS era of the ACP28G are not on record.
Answerable by: an engineer who operated it or OEM installation records
No publicly documented failure modes or field errata for the ACP28G are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the ACP28G is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No research found yet — worked with this tool? Share what you know.
Sources & citations
Sources (4)Every fact above is drawn from these public sources
- [1]Ideal Vacuum | Pfeiffer Adixen ACP 28G Dry Vacuum Pump For Pumping Traces of Corrosive Gas PN V6GATSGABF Pfeiffer Vacuum — idealvac.comidealvac.com
- [2]epfl.ch — epfl.chepfl.ch
- [3]idealspectroscopy.com — idealspectroscopy.comidealspectroscopy.com
- [4]Ideal Vacuum | Pfeiffer Adixen ACP 28G Dry Vacuum Pump For Pumping Traces of Corrosive Gas PN V6GATSGABF Pfeiffer Vacuum — idealvac.comidealvac.com
Last updated Sep 22, 2026.
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