Roots vacuum pumps

Edwards nXLi series

The Edwards nXLi series at a glance: 7 models from the field of Roots vacuum pumps – with technical data, variants and the option to send an enquiry.

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  • 7Models
  • 98–200m³/h pumping speed at 50 Hz
  • 0.02mbar lowest ultimate pressure
Operating principle: Roots vacuum pumps (schematic drawing)
Operating principle: Roots vacuum pumps

Product overview

Products of the Edwards nXLi series

Each row leads to the model with its technical data and variants.

Edwards nXL110iDPumping speed 98 m³/h 50 Hz98 m³/h 60 HzUltimate pressure Variants 1
Edwards nXL110iPumping speed 110 m³/h 50 Hz110 m³/h 60 HzUltimate pressure 0.02 mbarVariants 2
Edwards nXL200iPumping speed 200 m³/h 50 Hz200 m³/h 60 HzUltimate pressure 0.02 mbarVariants 2

About the series

Technology and features

Operating principle

Multi-stage Roots vacuum pumps compress the gas through several Roots stages arranged in series directly against atmospheric pressure and need no backing pump to do so. The pump chamber is dry and contact-free; gears and bearings are separated from the gas chamber.

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

Features of the series

  • Control panel as on the other Edwards dry pumps; remote and local operation, USB port for monitoring and diagnostics with the nST2 software
  • Single-phase connection 200–240 V ±10%, 50/60 Hz, for worldwide use
  • Air-cooled with controlled cooling that adapts the cooling capacity and keeps noise low
  • Transient Boost Mode: higher performance for a defined period, for example during initial pump-down or with briefly higher gas loads; according to Edwards, gas loads up to 60 slm nitrogen and chambers up to 300 litres
  • Oil-free and dust-free pump chamber for analytical applications and research

Manufacturer's data as given in the product descriptions of the individual models.

Frequently asked questions

Questions about the Edwards nXLi series

Which models does the Edwards nXLi series comprise?
The Ehrler & Beck catalogue lists 7 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 98 to 200 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 0.02 and 0.07 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 Roots 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 nXLi 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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