Posted on 10/26/2018
Six excavator models in the 7- to 10-ton range have been upgraded to Next Generation: 307.5, 308 CR, 308 CR VAB, 309 CR, 309 CR VAB, and 310. The 309 CR and 310 are new models.
CR designates compact radius, and VAB indicates a variable-angle swing boom. Operating weights range from 18,152 to 22,447 pounds, and maximum digging depths range from 13 feet 5 inches to 17 feet. The 307.5 has a 55.9-horsepower Cat C2.4 turbo diesel, and the other machines use a 70.3-horsepower Cat C3.3 diesel engine.
Cabs are sealed and pressurized, have suspension...