Exceptional pumping speeds and compression ratios
Built on decades of experience and based on our tried and trusted EXT and STP ranges
Up to 4 years between pump service
Quick and low-cost oil lubrication cartridge and full bearing change
Ceramic lower bearing and dry permanent magnet upper bearing
The nEXT pumps offer superior performance, reliability and end user serviceablity, setting the benchmark for scientific turbomolecular pumps.
nEXT has been designed to combine all the latest technological advances in turbomolecular pumps offering pump sizes of 55, 85, 240, 300, 400, 730, 925 and 1250 l/s pumping speeds for Nitrogen these pumps provide end-user serviceability and deliver a truly class leading product.
The nEXT240, nEXT300 and nEXT400 set the benchmark for scientific turbomolecular pumps, built on decades of experience and based on our tried and trusted EXT and STP ranges. With these long established models we offer a wide variety of sizes and variants giving OEMs and end users a greater choice and the flexibility to tailor the most appropriate vacuum solution to meet their individual needs.
With the nEXT730 and nEXT930, Edwards extended the range of our market leading nEXT platform with two larger pumps offering speeds significantly over 730 l/s and 925 l/s for nitrogen. We are now extending this again to include the nEXT1230 with pumping speeds of 1250 l/s for nitrogen. These compact pumps are able to operate in any orientation, and are supported by a full range of accessories for cooling, venting, powering and control. As well as addressing the general R&D market, where faster pumping speeds are sometimes required, these pumps are also designed to meet the requirements of the coating market and other diffuse market sectors such as Heat treatment, Furnace applications, Ebeam welding, Etch, Ion implant, Degassing and Cylinder evacuation.
superior performance
proven reliability for peace of mind
flexible solutions
ease of use
Extended lifetime and low cost of ownership
large variety of standard variants
| Unit | nEXT55 | nEXT85H | nEXT85H | nEXT85H | nEXT85H | nEXT240 | nEXT240 | nEXT300 | nEXT300 | nEXT400 | nEXT400 | |
| Peak pumping speed | NW40 | ISO63 | CF63 | ISO100 | Version D | Version T | Version D | Version T | Version D | Version T | ||
| N2 | l/s | 55 | 47 | 84 | 84 | 86 | 240 | 240 | 300 | 300 | 400 | 400 |
| Ar | l/s | 55 | 44 | 80 | 80 | 84 | 230 | 230 | 280 | 280 | 380 | 380 |
| He | l/s | 41 | 61 | 78 | 78 | 78 | 230 | 230 | 340 | 340 | 390 | 390 |
| H2 | l/s | 27 | 44 | 54 | 54 | 54 | 166 | 165 | 280 | 280 | 325 | 325 |
| Compression Ratio | ||||||||||||
| N2 | l/s | >1011 | >1011 | >1011 | >1011 | >1011 | >1011 | >1011 | >1011 | >1011 | >1011 | |
| Ar | l/s | >1011 | >1011 | >1011 | >1011 | >1011 | >1011 | >1011 | >1011 | >1011 | >1011 | |
| He | l/s | 8 x 106/2 x 107 (D/H) | 2×10⁷ | 2×10⁷ | 2×10⁷ | 2×10⁷ | 3×10⁵ | 106 | 106 | 3×106 | 108 | > 108 |
| H2 | l/s | 2 x 105/5 x 105 (D/H) | 5×10⁵ | 5×10⁵ | 5×10⁵ | 5×10⁵ | 104 | 105 | 5×104 | 10⁵ | 5×10⁵ | 106 |
| Ultimate vacuum | mbar | <5×10-10 | <5×10-10 | <5×10-10 | <5×10-10 | <5×10-10 | <5×10-10 | <5×10-10 | <5×10-10 | <5×10-10 | <5×10-10 |
| nEXT730D | nEXT930D | nEXT1230 | |||||
|---|---|---|---|---|---|---|---|
| ISO-K 160 | CF 160 | ISO-K 200 | CF 200 | DN 200 CF | DN 200 ISO-F | DN 200 ISO-K | |
| Main input Pumping speed | |||||||
| N2 l/s-1 | 730 | 925 | 1250 | ||||
| He l/s-1 | 820 | 905 | 1 150 | ||||
| H2 l/s-1 | 715 | 735 | 1350 | ||||
| Ar l/s-1 | 665 | 865 | 1 150 | ||||
| Maximum compression rate between discharge and admission. | |||||||
| N2 | > 1 x 1011 | > 1 x 1011 | 1 x 1011 | ||||
| He | 1,2 × 108 | 1,2 × 108 | 4 x 108 | ||||
| H2 | 4 × 106 | 4 × 106 | 1 x 107 | ||||
| Ar | > 1 x 1011 | > 1 x 1011 | 1 x 1011 | ||||
| Maximum pressure (mbar) (CF) | 3,0 × 10-10 | 3,0 × 10-10 | < 5 x 10-10 | Indicates higher pressure for ISO-K and ISO-F | |||
| Weight (kg) | 14,6 | 19,6 | 15,4 | 21,7 | 32,6 | 24,9 | 23,7 |
| Full throughput: | |||||||
| N2 | 14 | 14 | 12 | ||||
| He | 21 | 21 | < 20 | ||||
| H2 | >14 | >14 | < 20 | ||||
| Ar | 3.5 | 3.5 | 4 | ||||
