Sand Castings An overhead sand system delivers consistent sand to the molding stations. Our in-house lab runs daily quality tests on our green sand system properties. The core-room features CO2 and shell core production. The 8 station green sand molding line includes squeezer, rotolift, floor and cope and drag lines. Production: one-off, prototypes, low and medium runs Casting weight: ounces to 300 pounds Flask sizes: from 12’” x 12” up to 30” x 50” flasks Comprehensive cleaning and finishing rooms round out the casting process to deliver your product with a clean and smooth surface finish.