Air Requirements for Air Impact Markers

Published by Marc Steele on

Air Requirements

A simple chart gives various information for Air Impact Models. The information includes the bore size, stroke length, and relative time to extend, CV, SCFM, and expected drop in pressure of the compressed air.

The Air Impact Marker is not generated solely dependent on the air flow. The force is a combination of the air pressure and speed at which the rod/hammer is moving.

Air Requirements for Impact Markers*

ModelBoreStroke LengthTime to ExtendCVSCFMdrop in pressure
781.12515/1625ms0.628.32
88/2881.1252.550ms0.8311.12
2881.125470ms0.9512.72
2881.125680ms1.2516.72
98/2981.6252.560ms1.4519.32
2981.625490ms1.5520.62
2981.6256130ms1.6121.42
751/8511.5 (hammer)2.570ms1.3818.42
751/8513 (cylinder)4250ms1.1915.82

*CMT uses a standard valve with 1.7 cv 


Marc Steele

Marc has been in the marking business for over 15 years. He provides technical assistance through emails and online chat.