CG800 i GYRATORY CRUSHER SERIES 5. 6 CG800 i GYRATORY CRUSHER SERIES CG810i CG820i CG830i CG850i Piston Material Cast Steel Diameter, inner, mm 350 140 140 140 Diameter, outer, mm 600 690 955 1,000 Weight, kg 855 1,344 2,760 2,985 Mainshaft step Material Bronze Diameter, mm 520 580 800 840 Thickness, mm 75 69 102 Weight, kg 137 155 486 391 .