As it spins, rotary head of abrasive blasting machine produces even coverage in spans up to 20 in. Moving back and forth under head at constant speed, cart conveys parts up to 2 ft long. Potentiometer adjusts blast-head-rotation and cart speed from 1-60 rpm and 1-10 fpm, respectively. System is powered by VS dc motor. Programmable controller sets cart-trip counts. Unit includes long-lasting tabletop cart surface, tunable media reclaimer, two access doors for loading, and cartridge-type dust collector.