Here is a Rockwheel G5 Twin (60hp) is attached to a Cat 450 backhoe in a utility trenching application in Las Vegas, NV.
The rock here is Caliche, and the G5 Twin's power and design makes trenching easy and more productive than a hammer. The G5 Twin works in tough rock with low noise and vibration, AND all of the cuttings can be reused as backfill on site!
Productive - Quiet - Efficient
This is the ultimate trenching and rock grinding attachment in this region!
Visit RockwheelAmericas.com for more info and rental/purchase prices.