5 1/2' s Short Head Cone Crusher. 5 ½ s Short Head Crusher Ser # 5579 (1968). Mainframe and Adjustment Ring. This is an external pin design,. More details. Complete Cone Crusher w/ Manganese, Lube System, Motor and 's ASRi System. . Rim-Tec / s New 5 1/2' Shorthead Extra Coarse, Long Liners.