Technical Data Performance Characteristics Leybold D25B
Nominal pumping speed 50 / 60 Hz, DIN 28 400 m3/h 29.5 / 35.4
Pumping speed 50/60 Hz according to DIN 28 400 m3/h 25.7 / 30.8
Ultimate partial pressure without gas ballast DIN 28 400 mbar 1E-4
Ultimate total pressure without gas ballast DIN 28 400 mbar < 2E-3
Ultimate total pressure with gas ballast DIN 28 400 mbar < 5E-3
Water vapor tolerance DIN 28 400 mbar 25
Water vapor capacity g/h 476
Oil filling, min. / max. l 0.6 / 1.4
Noise level DIN 45 635 without - with gas ballast dB(A) 52 / 62
Admissible ambient temperature °C 12 - 40
Motor rating - AC motor 230 V 50 Hz W 750
Nominal speed 50/60 Hz 1/min 1500 / 1800
Motor protection IP 54
Weight - with AC motor version 230 V 50 Hz kg 32
Connections exhaust and intake Inch 25 KF
Click here to see a Leybold D25B Pumping Speed Demo!
Please note: JMI has thousands of machines in stock and the photo of the item taken at our facility is for reference. There may be multiple models of this item in stock. JMI will email a video of any machine purchased under payment terms agreed, demonstrating operation (prior to shipment) at your request.
JM Industries is selling this item in good condition and fully operational. The refurbished LEYBOLD D25B comes with a 30 day warranty. (extended warranties are available for an additional cost).
If you purchase the LEYBOLD D25B, JMI will fully test the item. In many cases JMI will also run your product with the LEYBOLD D25B to minimize your set up time. (just ask).
Buy the LEYBOLD D25B direct and avoid broker commissions.
Email us for more photos of the guaranteed LEYBOLD D25B. Feel free to call us with any questions regarding the machine in stock. Also contact JMI to learn about options that may be available for this item.
If there are any special details that are critical on the LEYBOLD D25B for your process, please let us know so we can be sure it meets your needs.
J.M. Industries offers support for many other machines, like the LEYBOLD D25B, even after the OEM (Original Equipment Manufacturer) discontinues offering parts or service.
Please inspect all shock watch indications when you receive the LEYBOLD D25B from J.M. Industries before signing the bill of lading to ensure the LEYBOLD D25B has been delivered in the same good condition it was shipped.
If would would like to see an emailed video of the LEYBOLD D25B you have purchased in operation prior to shipment, please let us know. Please note: We may need a deposit prior to sending a video of the LEYBOLD D25B to cover techncian costs.
About JMI Vacuum Pumps
J.M. Industries is one of the few dealers of semiconductor equipment
that performs vacuum pump rebuilding services on the LEYBOLD D25B at
With over 250 pumps in stock, in most cases we can also sell a rebuilt LEYBOLD D25B,
or equivalent model and ship faster than any other source.
You can avoid downtime waiting for your purchasing department to approve the
purchase of a LEYBOLD D25B by calling in credit cards M/C or Visa.
J.M. Industries can rebuild the LEYBOLD D25B for use with many different vacuum oils.
Hydrocarbon oil is standard, but if your LEYBOLD D25B will be subject to corrosive processes,
just ask us to upgrade your oil to Technical White for a small additional cost. If your application requires
the use of explosive gases, your LEYBOLD D25B can be rebuilt and be prepped KRYTOX or
FOMBLIN oil for an additional fee.
Power Saving Upgrade
JMI now offers power saving upgrades to the LEYBOLD D25B
We will install new motors with programmable motor speed controllers.
We can also install a new vacuum gage to change speed of the LEYBOLD D25B
automatically if the tool the pump is connected to does not have a output to control
the pump speed.