Ametek Lamb 5.7'' 2 Stage 24 Volt Vacuum Motor #116599-13The Ametek Lamb 5. 7'' two stage 24 volt motor delivers the sustained suction output that commercial and industrial vacuum systems depend on. Running on a 24 volt power supply, this two stage design generates significantly more airflow and lift than single stage alternatives. Genuine Ametek Lamb motor one of the most trusted names in vacuum motor manufacturing Two stage design for superior suction power and airflow compared to single stage motors 5.