The Ridley C-10 is a heavy-duty machine for spraying gunite material. The C-10 is refined for ease of use, such as recent upgrades to the feed system (allowing a more manageable setup). The C-10 features a 9 hp air motor with heavy duty spur gear drive, continuous feed hopper, dust suppression and up to 15 cu. yd./hour production. The C-10 is suited for construction, repair, mining and refractory applications. Gunite Supply & Equipment. 888-321-5526.