Model: ssp800-2 The machine is specially to make office or school chalk The machine has 2 molding stations, one motorized gypsum powder mixer Output: 8000-12000 chalks/hour 800 chalks per cycle/operation Chalk size: top 8mm, base 10mm, length 76mm Weight: 260kgs Model: ssp800-4 The machine is specially to make office or school chalk The machine has 4 molding stations, one motorized gypsum powder mixer Output: 12000-24000 chalks/hour 800 chalks per cycle/operation Chalk size: top 8mm, base 10mm, length 76mm Weight: 350kgs Wood case