Clemco Classic Blast Machine Model 2452 with Flat Sand Valve (FSV), Portable, 6 cuft 600lbs., with 11/4 inch Piping. The 6 cuft classic blast machine holds 6 . More. Clemco Blast Machines Free Shipping. Take the guess out of buying a blast machine and separate, compatible parts by choosing a complete sandblasting system. Our packages include the blast machine, remote .