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Edwards EXT and nEXT Series

nEXT Features:

  • Patented bearing suspension system minimizes noise and vibration transmitted to the vacuum system.
  • Advanced simulation tool derived rotor design to give better speed and compression performance.
  • Multiple drag stages for higher compression ratios and greater backing pressure tolerance.
  • Permanent magnet upper bearing for a hydrocarbon free vacuum, reduced vibration and minimum wear.
  • Manual vent port with automatic valve accessories for rapid venting and quick cycle times
  • Purge port for safe pumping operation of specialized gases.
  • Automatic wide operating voltage range from 24V to 48V dc for versatility in system integration.

Applications:

  • Mass spectrometry
  • Electron microscopy
  • Research and development
  • High energy physics
  • Industrial

Specifications Table

Pump Model nEXT85D nEXT240D nEXT300D nEXT400D
Pumping Speeds
N2: 84.0 L/s
Ar: 80.0 L/s
H2: 54.0 L/s
He: 78.0 L/s
N2: 240 L/s
H2: 165 L/s
He: 230 L/s
N2: 300 L/s
H2: 280 L/s
He: 340 L/s
N2: 400 L/s
H2: 325 L/s
He: 390 L/s
Max Gas Throughput Ar: 21.0 mbar*L/s
He: 232 mbar*L/s
N2: 60.0 mbar*L/s
Ultimate Pressure
ConFlat Flange
5.00 x 10-10 hPA
5.00 x 10-10 mbar
5.00 x 10-8 Pa
3.75 x 10-10 Torr
ISO-K Flange
8.00 x 10-8 hPA
8.00 x 10-8 mbar
8.00 x 10-6 Pa
6.00 x 10-8 Torr
ConFlat Flange
5.00 x 10-10 hPA
5.00 x 10-10 mbar
5.00 x 10-8 Pa
3.75 x 10-10 Torr
ISO-K Flange
8.00 x 10-8 hPA
8.00 x 10-8 mbar
8.00 x 10-6 Pa
6.00 x 10-8 Torr
ConFlat Flange
5.00 x 10-10 hPA
5.00 x 10-10 mbar
5.00 x 10-8 Pa
3.75 x 10-10 Torr
ISO-K Flange
8.00 x 10-8 hPA
8.00 x 10-8 mbar
8.00 x 10-6 Pa
6.00 x 10-8 Torr
ConFlat Flange
2.00 x 10-10 hPA
2.00 x 10-10 mbar
2.00 x 10-8 Pa
1.50 x 10-10 Torr
ISO-K Flange
1.00 x 10-8 hPA
1.00 x 10-8 mbar
1.00 x 10-6 Pa
7.50 x 10-9 Torr
Max Foreline Pressure 1.90 x 101 hPA
1.90 x 101 mbar
1.90 x 103 Pa
1.43 x 101 Torr
2.50 x 100 hPA
2.50 x 100 mbar
2.50 x 102 Pa
1.88 x 100 Torr
3.00 x 100 hPA
3.00 x 100 mbar
3.00 x 102 Pa
2.25 x 100 Torr
3.00 x 100 hPA
3.00 x 100 mbar
3.00 x 102 Pa
2.25 x 100 Torr
Cooling Method(s) Method
Forced Air
Water
Method
Forced Air
Water
Method
Forced Air
Water
Method
Forced Air
Water
Foreline Flange KF16
KF25
KF25
KF25
Inlet Flange KF40
ISO63-K
DN63CF (4.50" OD)
ISO100-K
DN100CF (6.00" OD)
ISO100-K
DN100CF (6.00" OD)
ISO160-K
DN160CF (8.00" OD)
Compression Ratio(s) Ar: 1.00 x 109
H2: 2.10 x 105
He: 8.50 x 106
N2: 1.00 x 1011
H2: 1.00 x 104
He: 3.00 x 105
N2: 1.00 x 1011
H2: 5.00 x 104
He: 1.00 x 106
N2: 1.00 x 1011
H2: 5.00 x 105
He: 1.00 x 108
N2: 1.00 x 1011
Weight Lbs (kg) 6.38 - 9.68 ( 2.90 - 4.40 ) 12.6 - 19.4 ( 5.70 - 8.80 ) 12.6 - 18.7 ( 5.70 - 8.50 ) 14.3 - 21.6 ( 6.50 - 9.80 )
Technology Dry
Dry
Dry
Dry


* Natural convection (30-35°C Ambient). Other cooling methods differ.

Charts

Edwards nEXT85D
 
Edwards nEXT85D Edwards nEXT240D Edwards nEXT300D Edwards nEXT400D

Videos

Edwards nEXT85 turbomolecular pump

With an increased customer choice of standard and higher compression variants, Edwards nEXT85 turbomolecular pump is able to offer superior performance for all needs, and yet is the smallest pump in its class on the market.

Runtime: 02:46

Product Datasheet
For a download of the product datasheet, click here.
Vacuum Pump Repair
& Services
World class service center for scheduled maintenance, evaluation, and vacuum pump repair.
Request a Service Quote
Request a Pump RMA
Remanufactured Vacuum
Pumps
Click here to view a list of remanufactured vacuum pumps available from The KJLC's Remanufactured Vacuum Pump Division.
Pumps FAQ
Click here for answers to some of the most common questions we are asked.
Contact Us
To speak with someone directly, please call +1 412 387 9200 or email international@lesker.com.
Note:
  • All pumps require a Controller and Power Cord for proper operation. An Inlet Screen, Vent Valve, and Air Cooling Fan may be required for select applications.

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Ordering Table

(Click column headers to sort data)

Accessories Pump
Model
Inlet
Flange
Foreline
Flange
Manual Part
Number
Price In Stock Add To Cart
Accessories Pump
Model
Inlet
Flange
Foreline
Flange
Manual Part
Number
Price In Stock Add To Cart
nEXT85D
DN63CF (4.50" OD)
KF16
Download PDF
B8G210C01
P.O.R.
Call for Availability
nEXT85D
ISO63-K
KF16
Download PDF
B8G210B01
P.O.R.
Call for Availability
nEXT85D
KF40
KF16
Download PDF
B8G210A01
P.O.R.
Call for Availability
nEXT300D
ISO100-K
KF25
Download PDF
B82200100
$10,852.00
Call for Availability
nEXT240D
ISO100-K
KF25
Download PDF
B81200100
P.O.R.
Call for Availability
nEXT300D
DN100CF (6.00" OD)
KF25
Download PDF
B82200200
$13,189.00
Call for Availability
nEXT240D
DN100CF (6.00" OD)
KF25
Download PDF
B81200200
$12,482.00
Call for Availability
nEXT400D
DN160CF (8.00" OD)
KF25
Download PDF
B83200400
$15,073.00
In Stock
nEXT400D
ISO160-K
KF25
Download PDF
B83200300
P.O.R.
Call for Availability

Can't Find The Pump You're Looking For? Let our new Pump Selection Guide help! With over 450 vacuum pumps to choose from, the KJLC® Vacuum Pump Selection Guide is designed to help you find one that meets your vacuum requirements. You can narrow down our pump offering by simply choosing from a list of different search criteria. For more information please e-mail international@lesker.com.

Accessories Table

For Pump Model(s) Description Part Number Price In Stock Add
To Cart
For Pump Model(s) Description Part Number Price In Stock Add
To Cart
EXT75DX, nEXT85D
Auto-Soft Flow Actuated Check Valve (KF40)
225-0040
P.O.R.
Call for Availability
nEXT400D
Bolting Kit, For DN160CF (8.00" OD) Flange, Including Bolt, Nut, and Washer Set and Copper Gasket
DN160CF-HDKIT
P.O.R.
Call for Availability
EXT75DX, nEXT85D
Bolting Kit, For DN63CF (4.50" OD) Flange, Including Bolt, Nut, and Washer Set and Copper Gasket
DN63CF-HDKIT
P.O.R.
Call for Availability
nEXT240D, nEXT300D
Bolting Kit, For Dn100CF (6.00" OD) Flange, Including Bolt, Nut, and Washer Set and Copper Gasket
DN100CF-HDKIT
P.O.R.
Call for Availability
EXT75DX, nEXT240D, nEXT300D
Clamping Kit, For QF100 (ISO100-K) Flange, Including (8) Cold Steel (Zinc Plated) Clamp and FKM Centering Ring
QF100K-HDKIT
P.O.R.
Call for Availability
EXT75DX, nEXT85D
Clamping Kit, For QF16 Flange, Including Aluminum Clamp and FKM Centering Ring
QF16-HDKIT
P.O.R.
Call for Availability
nEXT400D
Clamping Kit, For QF160 (ISO160-K) Flange, Including (8) Cold Steel (Zinc Plated) Clamp and FKM Centering Ring
QF160K-HDKIT
P.O.R.
Call for Availability
nEXT240D, nEXT300D, nEXT400D
Clamping Kit, For QF25 Flange, Including Aluminum Clamp and FKM Centering Ring
QF25-HDKIT
P.O.R.
Call for Availability
EXT75DX, nEXT85D
Clamping Kit, For QF40 Flange, Including Aluminum Clamp and FKM Centering Ring
QF40-HDKIT
P.O.R.
Call for Availability
EXT75DX, nEXT85D
Clamping Kit, For QF63 (ISO63-K) Flange, Including (4) Cold Steel Zinc Plated) Clamp and FKM Centering Ring
QF63K-HDKIT
P.O.R.
Call for Availability
All EXT and nEXT series pumps
Coolers for ACX75 Air Cooling Accessory
B58053075
$359.00
Call for Availability
All EXT and nEXT series pumps
Main Cables (suitable for TIC or relay box)
EUR 2m
D40013030
P.O.R.
Call for Availability
All EXT and nEXT series pumps
Main Cables (suitable for TIC or relay box)
US 2m
D40013120
$15.33
Call for Availability
All EXT and nEXT series pumps
TAG Turbo and active gauge controller
D39592000
P.O.R.
In Stock
All EXT and nEXT series pumps
TAV5 Vent Valve
B58066010
$507.00
Call for Availability
All EXT and nEXT series pumps
TIC RS232 interface cable 2m
D39700834
$57.36
Call for Availability
All EXT and nEXT series pumps
TIC Relay Box for Small Backing Pump
D39711805
P.O.R.
Call for Availability
All EXT and nEXT series pumps
TIC logic interface cable
D39700833
P.O.R.
Call for Availability
All EXT and nEXT series pumps
TIC100 Turbo and Instruments Controllers
D39721000
P.O.R.
Call for Availability
nEXT series pumps
TIC200 Turbo Controller
D39712000
P.O.R.
Call for Availability
All EXT and nEXT series pumps
XDD/DX/EXDC extension cable 2m
D39700836
$352.00
Call for Availability
nEXT series pumps
nEXT Bearing Change Tool
B80000805
P.O.R.
Call for Availability
nEXT series pumps
nEXT Oil Cartridge
B80000811
P.O.R.
Call for Availability
nEXT series pumps
nEXT Oil Cartridge Change Tool
B80000812
P.O.R.
Call for Availability
nEXT 240, 300, and 400 series pumps
nEXT Radial Fan
B58053175
$404.00
In Stock
nEXT85
nEXT Radial Fan, AXC85
B8G200820
P.O.R.
Call for Availability
nEXT series pumps
nEXT Replacement Bearing Assembly
B80000810
P.O.R.
Call for Availability
nEXT series pumps
nEXT Water Cooling
B80000815
P.O.R.
In Stock