Scroll Air Compressor/Pump suits small medical equipment.

Press Release Summary:

Suited for use in laboratory equipment, fuel cells, and mass spectrometers, P5H7 scroll pump measures 1.4 x 1.4 x 3 in., delivers up to 10 psi, and has no load flow of 0.14 cfm. Quiet and vibration-free, it provides compressed air or vacuum source and is available in aluminum or injection-molded plastic models. Device uses spinning scroll technology, can be adapted to pump liquids, and offers oil-free operation for laboratory and medical environments.

Original Press Release:

Air Squared Introduces the World's Smallest Scroll Air Compressor/Pump for Medical Equipment, Fuel Cells, Mass Spectrometers

Measures only 1.4 in.-square x 3 in. long, provides up to 10 psi and no-load flow of 0.14 CFM for reliable duty on medical devices, laboratory equipment, fuel cells and mass spectrometers November 2003 - Air Squared, the world's only maker of sub-1-hp scroll compressors, introduces the world's smallest scroll air compressor/pump for easy integration into small medical and laboratory equipment, fuel cells and mass spectrometers. Measuring just 1.4 in.-square x 3 in.-long (35 mm-square x 78 mm), the tiny P5H7 scroll pump delivers up to 10 psi and has a no load flow of 0.14 CFM (4.0 lpm). Quiet and inherently vibration-free, the scroll pump provides designers with a reliable compressed air or vacuum source for small medical equipment, such as portable nebulizers and suction devices, and can also be used to supply the roughing stage of vacuum for mass spectrometers. It is available in aluminum or affordable injection molded plastic models, at prices starting around $3 for plastic version with DC motor. The scroll pump can be easily adapted to pump liquids, making it ideal for low-cost disposable applications. Flexible scroll design allows for easy scaling up/down to suit individual requirements, while oil-free operation makes it well suited for clean laboratory and medical environments. Looking inside scroll technology Air Squared's proprietary small scroll pump uses spinning scroll technology. Inherently balanced, spinning scrolls utilize pure rotary motion, eliminating the need for counterweights and crankshafts. Low-noise spinning scroll units can run at relatively high speeds to 6000 rpm and higher without vibration. The core of the unique pump consists of two identical meshed scrolls (involute spirals), each attached on its "out" side to a flat base. Each scroll rotates about its centerline. Indexed 180° to each other so their spirals mesh, the scrolls fit together to form two halves of a chamber. The indexing motion creates crescent-shaped pockets between the involutes of the meshed scrolls and the base plates. Air entering the pump gets trapped in these pockets. As the scrolls rotate, the pockets follow the spiral inward, getting progressively smaller and compressing the air. Finally the air is exhausted through an outlet at the center of the scrolls. Air Squared's website at has a moving graphic that clearly demonstrates scroll motion. For more information on Air Squared's P5H7 small scroll air compressor/pump, contact: Robert Shaffer, president; Air Squared, Inc.; 7014 Rock Springs Drive; Hamilton, OH 45011. Tel: 513-755-2559. Fax: 513-755-2533. E-mail:

All Topics