Rough Backing Pump is a requirement. Again, Turbo Pump can't operate without backing mechanical/diaphragm pump. Sorry, Rough Backing Pump not included. Turbo Pumps use a high speed rotor (fan) to direct gas molecules in the pump throat down into the bottom of the pump and out the exhaust. Leybold has several educational movie on YouTube.
Item is in great working condition (PLS review last picture of pump under test). We also sell MacBook Pros and Precision Electronics Analytical Balances. Thanks for checking out my listing.
The item "LEYBOLDTPURBOPUMPTW 701TURBOMOLECULARVACUUMPUMPAIRCOOLEDTURBOMOLECULAR" is in sale since Monday, April 1, 2019. This item is in the category "Business & Industrial\Hydraulics, Pneumatics, Pumps & Plumbing\Pumps & Pump Accessories\Vacuum Pumps\Turbomolecular Pumps".
The seller is "redsalt1455" and is located in Fast Shipping from Chicago. This item can be shipped to United States.