Drainage Contractor

Mastenbroek to unveil new Bulldog trencher at ConExpo

January 27, 2023  By Drainage Contractor

Mastenbroek will unveil its first-ever utility trencher designed specifically for North America at ConExpo-Con/Agg 2023 in March.

The leading designer and manufacturer of self-propelled trenchers and crawler trucks will use the construction trade show to unveil the Bulldog, a small-footprint and compact yet powerful trencher designed to meet the need of utility cable and pipeline layers.

The Bulldog, which is 38 feet 7 inches (10.9m) long, is designed to work in confined areas, and its forward discharge conveyor system retracts to give an 8 foot 2 inch (2.5m) width making it is easy to transport.¬†Borrowing much of Mastenbroek’s engineering prowess from the existing 17/17 trencher, the new Bulldog features a new engine and enhanced digging mechanism.

The new U.S.-specific trencher features a U.S. EPA Tier 4 final compliant Volvo 8-litre engine offering the ideal combination of power, efficiency and emissions. Complementing the Volvo engine is a new diesel hydrostatic drive system developed by Mastenbroek to power the new heavier digging mechanism, which can achieve the six-foot trench depth required by U.S. cable layers.


The Bulldog also features an offset cutting head and forward swing conveyor making it ideal for operating in cities and on highways where access is restricted and excavated material needs to be loaded onto trucks for removal offsite. A steerable undercarriage enables curved trench lines, and the track lift allows the machine to straddle raised pedestrian walkways.

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