ACE SC300M-3, also listed as SC-300M3, is a compact self-compensating miniature shock absorber designed for industrial automation tasks. It features a 0.75-inch (19.05 mm) stroke and an M20 x 1.5 mounting thread, delivering about 300 in-lbs of energy per cycle to decelerate moving parts with a controlled, soft contact action. The unit is offered in variants with body lengths of 87.4 mm and 117.4 mm and is described as self-compensating with soft contact. It supports an impact velocity range of roughly 0.5 to 12 ft/s (0.15–3.66 m/s), and each shock absorber ships with a lock nut for mounting security.
