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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 mbarL/s He:* 232 mbarL/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

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

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		B8G210C01	P.O.R.
	nEXT85D	ISO63-K	KF16		B8G210B01	P.O.R.
	nEXT85D	KF40	KF16		B8G210A01	P.O.R.
	nEXT300D	ISO100-K	KF25		B82200100	$10,852.00
	nEXT240D	ISO100-K	KF25		B81200100	P.O.R.
	nEXT300D	DN100CF (6.00" OD)	KF25		B82200200	$13,189.00
	nEXT240D	DN100CF (6.00" OD)	KF25		B81200200	$12,482.00
	nEXT400D	DN160CF (8.00" OD)	KF25		B83200400	$15,073.00
	nEXT400D	ISO160-K	KF25		B83200300	P.O.R.

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