The newly released Commander 4000 Series of digger derricks from Terex Utilities are built for long-term reliability. Four models in the series have sheave heights of 42.5, 45.5, 47.4, and 50.4 ft. Work zone capacities at median digging radii range from 5,778 lbs to 4,232 lbs.

“Commander 4000 digger derricks continue to boast leading work zone capacities. That means they can dig holes and set poles without requiring the operator to reposition the truck,” Director of Marketing Joe Caywood said.

Crews can also load pole trailers without having to unhook the trailer and move it. Meanwhile, optional X-Boost increases lifting capacity when crews need to lift at high boom angles above 50 degrees.

Strength and Rigidity in a Lightweight Package

Contributing to the strong work zone capacities is a high strength box-beam boom design boasting strength and rigidity in a lightweight package. Dual hydraulic lift cylinders with trapezoidal design stabilizes the boom during digging and rotation, which provides superior out-of-the-hole lifting.

A large nut retention system for the main hinge pin locks the boom and side plates together, which additionally contributes to excellent rigidity. The pedestal has a large diameter rotation bearing and rigid upper and lower mounting plates, according to a press release.

A wide variety of augers, designed for various types of soil conditions, further contributes to increased productivity on the jobsite. In addition, augers with interchangeable heads are now available.

“We recommend the Bullet Tooth Augers for rock applications and the TX Series Augers for dirt or cobble conditions,” Regional Account Manager for Auger Tooling Greg Adler said.