Spiradrill Topdrive Utility Drill

STUD
Excavator-Mounted Low-Drill
Built for Versatility

The STUD is Spiradrill's excavator-mounted drilling rig engineered for tight access and low-clearance environments. With the ability to reach up to 60 feet in depth and drill up to 72-inch diameter bores, it combines power and flexibility for utility and infrastructure projects in confined spaces. Designed for ease of operation and quick setup, the STUD excels in challenging conditions — easily reaching over obstacles and operating under overhead lines or existing structures.

View Specs and ConfigurationsReach Out Today
40–80′Max Pile Depth
72"Max Pile Diameter
60,000ft-lbs Rotary Torque
STUD in action

Built Different

Why Choose the STUD

The STUD is built for crews who need serious drilling power in spaces where traditional rigs cannot go. Whether working near power lines, under bridges, or in tight urban corridors, this excavator utility drill delivers the performance, flexibility, and ease of use needed for complex utility and infrastructure jobs.

Excavator-Mounted VersatilityReach over obstacles up to 16 feet away with stable, flexible positioning.
Low Clearance AccessDrills under power lines, bridges, and tight overhead structures where conventional truck rigs cannot operate.
Fast Setup and OperationExcavator-style controls are intuitive for quick starts and efficient operation without a steep learning curve.
Big Performance in Small SpacesDrills up to 40 feet deep with bore diameters up to 72 inches.
Built for Demanding ConditionsEngineered to handle tough ground and complex site layouts with the confidence and reliability Spiradrill is known for.
OEM Parts and SupportThousands of parts stocked in Texas, with expert support from the team that builds and services every STUD.

Technical Data

STUD Specs

Exact specs vary by configuration. Contact us to discuss your specific project needs.

Performance

Rotary Torque 60,000 ft-lbs
Max Pile Depth 40′–60′
Max Pile Diameter 72"
Max Kelly RPM (Low Range) 18 RPM
Max Kelly RPM (Mid-Range) 50 RPM
Spin Off RPM (Hi Range) 122 RPM

Machine

Crowd 24,000 ft-lbs
Main Winch 15,000 lbs
Aux Winch 8,000 lbs
Fuel Tank 50 gallons
Engine CAT/Volvo

Configurations

Drill Depth Working Height Kelly Bar Round Kelly Bar Square # of Stages
40′ 20′ Y Y 5
60′ 25′ Y Y 5
80′ 30′ Y Y 5
STUD travel dimensions diagram
STUD working dimensions diagram

Accessories and Add-ons

All LHD rigs can be outfitted with:

  • Auxiliary winch
  • Pro heat
  • Enclosed cab
  • Toolboxes and lighting
  • Telemetry package for remote monitoring
  • Outrigger pad storage
  • Water tank, and more

Real World Use

STUD Common Applications

01

Drilling Under Existing Infrastructure

Reach up to 16 feet away from the carrier, under power lines — the STUD is the ideal choice for infrastructure support drilling that requires flexibility and precision without disturbing existing structures.

02

Utility Pole and Substation Installation

The STUD excels in utility drilling applications, particularly when working near existing structures. Its compact design and extended reach make it perfect for substation work and overhead line installations.

03

Streetlight and Signal Pole Foundations

With its ability to drill deep holes in tight urban environments, the STUD is a prime solution for streetlight and signal pole installations where space and access are limited.

04

Confined Site and Urban Construction

Designed for complex urban environments where space is limited and access is challenging, the STUD delivers reliable performance in the tightest conditions without sacrificing depth or power.

Get in Touch

Ready to Put the STUD to Work on Your Next Job

Our team is ready to answer your questions, walk you through configurations, and help you find the right setup for your operation.