air screw

air screw

[′er ‚skrü]
(mechanical engineering)
A screw propeller that operates in air.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Maxi-Air 100, 375DP and 400 Portable Air Compressors are designed with a heavy-duty, oversised rotary air screw end to run at lower RPM for longer life and improved fuel efficiency.
The company's product category covers a variety of air drills, air impact wrenches, air die grinders, air screw driver and air tools in general, all of which are sold under its own brand Airboss, and orderable on an OEM (original equipment manufacturing) or ODM (original design manufacturing) basis.
Several thousand Kobelco oil-free air screw compressors are already in service in some of the largest and most important manufacturing companies in the United States.