Case upgraded to Tier-4, Stage-1-certified Isuzu engines with 54 net horsepower in its CX75 minimum-swing-radius excavator and CX80. The CX75 and CX80 have operating weights of 17,468 pounds and 18,585 pounds, respectively. The CX75 has a maximum dig depth of 13 feet 7 inches, while the CX80 has a maximum dig depth of 13 feet 9 inches.