Screw vacuum pumps

Edwards EOSi series

The Edwards EOSi series at a glance: 10 models from the field of screw vacuum pumps – with technical data, variants and the option to send an enquiry.

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  • 10Models
  • 400–5,004m³/h pumping speed at 50 Hz
  • 0.3mbar lowest ultimate pressure
  • 5.5–90kW rated motor power at 50 Hz
Operating principle: Screw vacuum pumps (schematic drawing)
Operating principle: Screw vacuum pumps

Product overview

Products of the Edwards EOSi series

Use the filters on the left to narrow the models down by their key figures. Each row leads to the model with its technical data and variants.

Edwards EOS350iPumping speed 400 m³/h 50 Hz400 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 5.5 kW 50 Hz5.5 kW 60 HzVariants 4
Edwards EOS585iPumping speed 560 m³/h 50 Hz560 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 7.5 kW 50 Hz7.5 kW 60 HzVariants
Edwards EOS730iPumping speed 730 m³/h 50 Hz730 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 11 kW 50 Hz11 kW 60 HzVariants
Edwards EOS900iPumping speed 900 m³/h 50 Hz900 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 15 kW 50 Hz15 kW 60 HzVariants 1
Edwards EOS1400iPumping speed 1,400 m³/h 50 Hz1,400 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 22 kW 50 Hz22 kW 60 HzVariants 1
Edwards EOS1700iPumping speed 1,620 m³/h 50 Hz1,620 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 30 kW 50 Hz30 kW 60 HzVariants 3
Edwards EOS2000iPumping speed 1,818 m³/h 50 Hz1,818 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 37 kW 50 Hz37 kW 60 HzVariants 1
Edwards EOS3800iPumping speed 3,828 m³/h 50 Hz3,828 m³/h 60 HzUltimate pressure 0.3 mbarRated motor power 55 kW 50 Hz55 kW 60 HzVariants 4
Edwards EOS4600iPumping speed 4,478 m³/h 50 Hz4,478 m³/h 60 HzUltimate pressure 0.3 mbarRated motor power 75 kW 50 Hz75 kW 60 HzVariants 4
Edwards EOS5400iPumping speed 5,004 m³/h 50 Hz5,004 m³/h 60 HzUltimate pressure 0.3 mbarRated motor power 90 kW 50 Hz90 kW 60 HzVariants 4

Model comparison

About the series

Technology and features

Operating principle

Oil-injected screw vacuum pumps compress the gas with two intermeshing screw rotors; the injected oil seals, lubricates and cools the compression chamber. An oil separator keeps the oil in the circuit. The design allows high pumping speeds with low energy demand and, on variable-speed versions, the pumping speed to be matched to the actual demand.

The technology page shows the operating principle with an interactive drawing: Screw vacuum pumps.

Frequently asked questions

Questions about the Edwards EOSi series

Which models does the Edwards EOSi series comprise?
The Ehrler & Beck catalogue lists 10 models of the series. The product overview names each model with its key figures and the number of its variants; the model page shows the technical data.
Which pumping speeds does the series cover?
At 50 Hz the models cover pumping speeds from 400 to 5,004 m³/h. The figure comes from the product data of the individual models; values for 60 Hz, where available, are given in the product overview.
What ultimate pressure do the models of the series reach?
Depending on the model, the ultimate pressure lies between 0.3 and 0.35 mbar. The figures on the page of the respective model are decisive.
How does the technology of the series work?
The series belongs to the field of screw vacuum pumps. The technology page explains the operating principle with an interactive drawing and names all series of this technology.
Does Ehrler & Beck supply spare parts and service for the Edwards EOSi series?
Yes. Ehrler & Beck supplies the models of the series as well as spare parts and accessories and takes care of maintenance and repair. For a quotation, an enquiry with the model or part number is all it takes.

Which model fits your process?

Tell us the gas to be conveyed, the working pressure and the flow rate you need – we will advise you on selection, spare parts and service.

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