PRODUCT DATA SHEET XDS35i and XDS35i Enhanced Family The XDS35i family of scroll pumps offer proven dry, clean vacuum solutions for a wide range of applications, with smart drive technology to look after the pump and provide world wide performance. Now, a combination of the patented double start scroll form technology and by-pass valves have enabled Edwards to offer the XDS35i Enhanced range of pumps to complement our original family. Take another step. With reduced peak power requirements at roughing pressures and continuous higher roughing speeds these enhanced pumps enable the user to take another step in terms of the performance envelope to address those special applications where roughing performance or the ability to evacuate a large volume is important. XDS35i and XDS35i Enhanced pumps are available as standard pumps with gas ballast, versions of the pump with no Gas Ballast (well suited for rare gas recirculation and gas recovery applications) and the C versions of the pumps featuring Chemraz® internal valves and stainless steel fittings for extra protection from the pumped media. Features and benefits Bearing shield ensures separation between process gases and bearing lubrication to ensure clean vacuum and no possibility of contamination to lubrication from process gases, which prolongs bearing life. Smart motor drive means consistent performance globally, pump overload protection and remote start/stop capability. High flow gas ballast feature allows pumping of vapours including water vapour at up to 240 gh-1. Simple single sided scroll design allows maintenance to be done in minutes for low cost of ownership and maximum up-time. Take another step the Enhanced versions offer up to 20% lower peak power requirements during initial pump down which means it has the ability to pump down large volume chambers with no loss of performance and has up to 25% more pumping speed at these roughing pressures which helps on higher frequency cycling applications as well.

PRODUCT DATA SHEET edwardsvacuum.com Technical data * Use at higher inlet pressure speeds up tip seal wear (1) measured as total pressure (2) These pumps are designed to pump down from atmospheric pressure, but prolonged operation at inlet pressures higher than specified may reduce bearing life. (3) for UK 240 V use 13 A fuse

PRODUCT DATA SHEET edwardsvacuum.com Accessories and spares: Ordering information Pumps: XDS35i Family Pump spares kits: Tip seal & exhaust service kit XDS35i Exhaust valve kit (Chemraz®) By-pass valve Kit 35iEC (Chemraz®) Please remember to order appropriate valve and gas ballast kits as required

PRODUCT DATA SHEET Performance XDS35i PUMPING SPEED AND POWER 1800 Pressure (mbar) XDS35i speed The graph shows typical pump performance Note that peak power for XDS35i is supplied for a short period of time before the intelligent drive reduces the power and speed XDS35i Enhanced, with its bypass valves, is not limited and will pump down continuously at full speed GLOBAL CONTACTS Publication Number: 3601 0458 01 © Edwards Limited 2018. All rights reserved Edwards and the Edwards logo are trademarks of Edwards Limited. UK Belgium France Germany Italy Israel Whilst we make every effort to ensure...