Tag : Green & McCahill

Classic Machines Scrapers

Classic Machines: Caterpillar’s DW21 scraper revisited

Charles Fairbairn
Born of necessity, the Caterpillar DW21, the great granddaddy of all Caterpillar 2-axle scrapers, went on to become a very successful scraper for Cat and
Classic Machines Scrapers

Classic Machines: The Caterpillar J621 elevating scraper

Charles Fairbairn
A logical development of the Caterpillar J619, Caterpillar’s J621 elevating scraper was introduced in 1965.   By Richard Campbell The Caterpillar J621 was a pairing of
Classic Machines Excavators

Classic machines: The Caterpillar 225 excavator

Charles Fairbairn
After years of planning and testing in secrecy, Caterpillar finally unveiled its first hydraulic excavator a fair bit later than a lot of the competition.