Edwards nEXT 240
Edwards nEXT 300
Edwards nEXT400
Pumping speed with N2
 

 

nEXT - the new experience in turbopumps

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Edwards, a world leader in vacuum technology, is proud to present the nEXT generation of turbopump.

Built on over two decades of experience based on our tried and trusted EXT and STP ranges, nEXT sets the new benchmark for scientific turbopumps.  nEXT offers you the best turbopump for performance, reliability and end user serviceablity.

nEXT has been designed to combine all the latest technological advances in turbomolecular pumps with end-user serviceability, delivering a truly class leading product.

Pump sizes available offering true 240, 300 and 400 litres per second pumping speed performance (N2).

  • State-of-the-art rotor design to deliver exceptional pumping speeds and compression ratios
  • Field proven reliability in the most demanding environments
  • Standard fit in many of the leading scientific instruments with over 100,000 turbopumps installed
  • Fully end user serviceable in minimum time without complex tooling or major disassembly... you can do it
 
  nEXT Sneak Preview:
End-user serviceability
 


The Edwards nEXT pumps are truly end user serviceable in just minutes…you can do it.

In a conventional turbopump, the bearing is supported both axially and radially by damping elastomers. While these provide some damping of rotor vibration such that it is not transmitted to the pump body, the characteristics of these can change in time leading to increased vibration levels.

The lower bearing on Edwards nEXT pumps is hard mounted into a special suspension system and the damping elastomers eliminated. This suspension system is designed to be stiff in the axial direction which ensures precise rotor positioning, but more compliant radially which absorbs vibration. These low vibration levels are maintained for the life of the pump.

When changing the pump bearing, the rotor does not need to be re-balanced enabling the end user to complete the service in the field without the use of complex tooling, jigs, fixtures or indeed major disassembly.

• Low cost of ownership – do the service yourself
• Reduced time – no customs paperwork or health & safety
   forms to complete
• Increased up time – no shipping product for service

Edwards nEXT, the new experience in turbopumps!

 

Edwards nEXT Bearings
 
 

Tehcnical Data:
nEXT240
nEXT300
nEXT400
N2
He
H2
N2
He
H2
N2
He
H2
Speed l/s
240
230
165
300
340
280
400
390
325
Compression Ratio
>1 x 1011
3 x 105
1 x 104
>1 x 1011
1 x 106
5 x 104
>1 x 1011
1 x 108
5 x 105


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Edwards Ltd, Manor Royal, Crawley, West Sussex, RH10 9LW, UK. T: +44 (0) 1293 52 88 44
© Edwards Limited 2008. All rights reserved. Registered in England and Wales No. 6124750
Edwards and the Edwards logo are trade marks of Edwards Limited.

 
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