Highway HM-38 Pressure Digger

The Highway model HM-38 is mechanical drive & hydraulic bar pressure digger. It's purpose built final drive can withstand the ultimate abuse of large diameter augers from day to day and excells in the electrical transmission industry. It can also be fitted on to a single rear axle chassis for the ultimate power house in situations where manuverability is limited.

Highway HM-38 Specifications

Diesel 115 HP
Mechanical with torque convertor, 6sp forward, 3 reverse
52,513 ft/lbs
Digging Depths:
10' - 25'
Auger Capacities:
6" - 72"
Kelly Bar:
3" solid kelly bar
Final Drive:
18" ring gear with replaceable thrust plates, 5 year warranty on ring gear and mating gear
Slide Table:
36" slide
Turn Table:
240 degrees
Boom Leveling:
15 degrees over vertical, 45 degrees left, 20 degrees right on 20' dig depth and under.
Service Winch:
12,000 lb hydraulic
Pole Setter:
Fixed pole setter and 6' telescoping pole setter
Base Unit Weight:
14,500 lbs
Chassis Min. Specs:
33,000 GVW, 108" CA

Highway HM-38 Downloads

Literature Service Manual Technical Data YouTube
Contact us with serial #
Contact us with serial #