Caterpillar is putting that century-old design to work in its heaviest tracked dozer yet – and the efficiency gains are incredible.

Among the 58 incidents reported to the NSW Resources Regulator in a single week were two involving dozers at open-cut coal mines.

“This rubber-tracked, articulated dozer is based on years of working with customers, and their interaction with our engineers,” says Scott Bayless, John Deere product consultant for the HSD. “It ...

Fitted with an external ROPS, the D155AX-5B crawler dozer, introduced in late 2003, weighed in at 86,400 pounds equipped with a semi-U blade and ripper. Its Komatsu SA6D140E-3 Tier-2 diesel engine was ...