A 7- to 10-ton excavator will deliver approximately 36 to 50 THHP to a lighter 36-in. attachment. And a 20-ton excavator will deliver about 115 THHP to attachments with a 36- to 60-in. width.

Komatsu America Corp. is no exception, replacing its 110-ton P1100 series with a new 125-ton PC1250 series of crawler excavators. Komatsu, Vernon Hills, Ill., considers the PC1250LC-7 its flagship ...