Mini 4 Bolt Oil Expeller, a bolt type oil machine with a 16"X3" chamber and a crushing capacity of 30 kg/hour for mustard, flax, coconut, sesame, sunflower, peanuts, canola, neem and camellia seeds. It turns at 45 RPM on a 5 H.P motor or an 8H.P engine. The bright blue body carries white line detailing and stands on white legs. An open cage of light grey bars forms the pressing chamber, with a cylindrical hopper and feed chute above it and a drive shaft at each end.