a clear edge nEXT turbopumps Vacuum science... product solution.

a clear edge innovative thinking, practical solutions Applications You can be assured Edwards has the application expertise and vacuum solution to meet your needs. Mass spectrometry GCMS, LCMS, ICPMS, MALDI, inorganic MS, RGA, surface science, leak detectors Glove boxes, coating systems, XRD/ XRF systems, lamp evacuation Electron microscopy TEM, SEM, SPM, sample prep benches Research and development Chamber evacuation, coating systems, turbopump systems High energy physics Beam Lines, accelerators, mobile pump carts, turbopump backing, laser evacuation, medical systems Semiconductor Load locks...

nEXT - The new experience in turbopumps 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 enduser serviceability. fast State-of-the-art rotor design to deliver exceptional pumping speeds and compression ratios robust Field-proven reliability in the most demanding environments simple Standard fit in many of the leading scientific instruments...

Technology The compact design allows for close pitch positioning in multiple pump installations. Backwards compatible with existing EXT and DX ranges offering superior performance in a smaller space envelope. Compatible with Edwards TIC Controllers Multiple drag stages for higher compression ratios and greater backing pressure tolerance Sensorless drive for high efficiency and compactness with reduced stray magnetic fields Patented bearing suspension system minimises noise and vibration transmitted to vacuum system. User replaceable oil cartridge for a speedy interim service Regenerative stage...

Permanent magnet upper bearing for a hydrocarbon free vacuum, reduced vibration and minimum wear Advanced simulation tool derived rotor design to give better speed and compression performance Manual vent port with automatic valve accessories for rapid venting and quick cycle times Purge port for safe operation of pump with specialised gases Manual as well as serial setting of standby speed for flexible system tuning Simple parallel operation or more sophisticated serial control in both RS232 and RS485 protocols Automatic Wide operating voltage range from 24 V to 48 V dc for versatility in system...

Advanced technology nEXT has been designed to combine all the latest technological advances in turbo pumps with some new thinking in design for manufacture, delivering truly class leading product to market. nEXT is available in three sizes The pump name refers to the true peak pumping speed for nitrogen gas. The nEXT platform brings a high level of modularity to offer maximum flexibility for customer application and requirements. Each pump is available in two different internal configurations to offer differing performance Duplex - “D” - variants with both turbomolecular and drag stages for improved...

Boost technology “T” variants of nEXT employ a unique viscous pumping stage which can be used to ‘boost’ the performance of the backing pump. This offers a much simplified vacuum solution with greatly improved pumping speeds and system power reduction. The example in the image below shows how the boost ports can be used to replace a primary pump on a differentially pumped system. To take maximum advantage of boost technology, please contact Edwards. Service New technologies employed in nEXT have enabled the pumps to be serviced by the end user in the field. An interim oil lubrication change can...

Inlet flange Inlet pumping speed (l/s) H2 Interstage pumping speed (l/s) Backing/interstage/boost ports Critical backing pressure D (mbar) Critical backing pressure T (mbar) Vent/purge port Maximum continuous inlet flow (nitrogen, sccm) Water cooling (40°C ambient) Forced air cooling (35°C ambient) Natural convection (30°C ambient) Maximum continuous backing pressure (mbar) Water cooling (40°C ambient) Forced air cooling (35°C ambient) Natural convection (30°C ambient) Recommended backing pump* Peak booster speed m3h-1 (T variants) RV12 Start time to 90% speed (sec) D (T) Normal rotational speed...

Performance nEXT240D Pumping Speed 300 250 200 Nitrogen Argon Helium Hydrogen Inlet Pressure (mbar) nEXT300D Pumping Speed 400 Helium Hydrogen Inlet Pressure (mbar) nEXT400D Pumping Speed 500 450 1.00E-04 1.00E-03 1.00E-02 Inlet Pressure (mbar)

Envelope Vent Port 1/8” BSP (Interstage) Electrical Drive Unit Body Purge Port 1/8” BSP 4 holes M8 x 12 deep base mounting holes and fan mountings (supplied with feet fitted but not shown)

Controllers and accessories The TIC turbo and instrument controller automatically recognises and supports 1 turbo-molecular pump from the nEXT range, plus 3 Edwards’s active gauges. Cooling and vent valve support is provided directly from the controller. Backing pump power is provided for a compact 24V diaphragm pump (on 200W versions only), or where greater pumping speeds are required, mains backing pumps (up to RV12/XDS10) may be controlled via an optional relay box. The relay box can also be used to control a mains heater band and backing line isolation valve. Time delays and normal speed...

Global contacts Belgium United Kingdom Shanghai (toll free) 400 111 9618 United States www.edwardsvacuum.com/nEXT [email protected] Publication Number: B80000895, Issue B. © Edwards Limited 2013. All rights reserved. Edwards and the Edwards logo are trade marks of Edwards Limited.