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UNI 500x700 maxi HDD rig — most powerful directional drill for major pipeline crossing

UNI 500x700 Maxi HDD Rig

The most powerful horizontal directional drill in the Universal HDD lineup. 500,000 lbs pullback for major pipeline and large-scale trenchless projects.

UNI 500x700 Maxi HDD Rig

The most powerful horizontal directional drill in the Universal HDD lineup. 500,000 lbs pullback for major pipeline and large-scale trenchless projects.
Push/Pull

500,000 lbs

Torque

70,000 ft-lb

Engine

600 hp

Mast System

Parallelogram

UNI 500x700 Maxi HDD Rig — Most Powerful Horizontal Directional Drill for Major Pipeline Projects

UNI 500x700 maxi pipeline HDD rig for sale factory direct

The UNI 500x700 is Universal HDD's most powerful maxi-class horizontal directional drilling rig — engineered for large-scale pipeline projects where maximum power, stability, and precision control are non-negotiable.

With 500,000 lbs of thrust and pullback and 70,000 ft-lb of rotary torque, powered by a 600 HP turbo diesel engine, this biggest horizontal directional drill delivers reliable performance in the most challenging ground conditions. The Parallelogram Mast System ensures precise angle control under extreme high-stress conditions.

Standard: Multi-Person Panoramic Control Station with climate control and vibration-reducing air-suspension seating, Heavy-Duty top-entry rod loading, Heavy-Duty side anchor flanges, Hot and Cold Weather packages.

DOWNLOAD SPECIFICATIONS CALL (847) 955-0050

Specification and Dimensions UNI 500x700

Parameters Imperial Metric
Thrust / Pullback (max) 500,000 lbs 2,224 kN
Spindle Torque (max) 70,000 ft-lb 94,907.5 Nm
Spindle Rotation Speed (max) 80 rpm 80 rpm
Carriage Speed (max) 100 fpm 30.5 m/min
Operation Angle 16° 16°
System/ Feature Description Option
Cruise Control System Maintains preset maximum thrust and rotation parameters during operation Standard
Mud Flow Indicator Integrated system for real-time drilling fluid monitoring Standard
Mud Pressure Relief System Automatic pressure relief when breaking out joints to protect system components Standard
Rod Loading System Heavy-duty top-entry rod loading system Standard
Parallelogram Mast System Adjustable mast with parallelogram linkage, allowing precise angle control and improved load distribution under high stress conditions Standard
System/ Feature Description Option
Locating Remote Display Available as integrated or freestanding unit Standard
Wireless Remote Control Full control for maneuvering, loading, and setup operations Standard
Rod Lubrication System Operator-controlled lubrication with adjustable output for temperature and jobsite conditions Standard
Adjustable Thrust & Torque Limits Set maximum output parameters for improved control and system protection Standart
UNI Curve System Preset roll and steering coordination for precise bore path control Standart
Immobilization Safety System Wireless exit-side safety control system Optional
Breakout System Breakout system with automatic mud pump shut-off and pressure relief Standard
System/ Feature Description Option
Remote Locating Display Integrated or stand-alone display for real-time tracking data Standard
Strike Alert System Detects electrical hazards and alerts operator for safety Standard
Integrated Diagnostic System Allow operator to identify issues in real time and significantly reduce troubleshooting time in the field job site Standard
System/ Feature Description Option
Heavy-duty side anchor flanges Heavy-duty side anchor flanges for increased lateral stability and secure positioning during drilling operations Standard
Breakout System Breakout system with automatic mud pump shut-off and pressure relief Standard
Parameters Imperial Metric
Fuel Tank 145 gal 553 L
Hydraulic Tank 154 gal 583 L
Parameters Imperial Metric
Length 700 in 1778 cm
Width 124 in 315 cm
Height 170 in 432 cm
Weight 88,500 lbs 40,143 kg
Parameters Imperial Metric
Engine Type Turbo Diesel Turbo Diesel
Fuel Type Diesel Diesel
Gross Horsepower 600 hp 447.4 kW
Rated RPM 2,200 rpm 2,200 rpm
EPA Certification Tier IV Tier IV
Parameter Size & Thread type
Drill Rod Option 1 5 1/2" FN 30 ft
Drill Rod Option 2 6 5/8" FN 30 ft
System/ Feature Description Option
Multi-Person Control Station Standalone panoramic control station with climate control and vibration-reducing air-suspension seating Standard
Hot Weather Package Additional hydraulic cooling system for reliable operation in high ambient temperatures Standard
Cold Weather Package Electric hydraulic oil tank preheater and engine coolant preheater with programmable timer for reliable operation in low-temperature conditions. Standard
DOWNLOAD SPECIFICATIONS CALL (847) 955-0050

Key Features & Available Options

UNI 500x700 600 HP turbo diesel engine compartment

Powerful CAT® Engine

600 gross hp for strong output and smooth operation in demanding applications

UNI 500x700 integration diagnostic system

Integrated Diagnostic System

UNI 500x700 heavy-duty tracks and undercarriage detail

Heavy-duty side anchor flanges

Heavy-duty side anchor flanges for increased lateral stability and secure positioning during drilling operations

UNI 500x700 parallelogram mast system angle control

Parallelogram Mast System

Adjustable mast with parallelogram linkage, allowing precise angle control and improved load distribution under high stress conditions

UNI 500x700 multi-person panoramic control station

Operator`s Station

Standalone panoramic control station with climate control and vibration-reducing air-suspension seating

Manufactured in USA
Lead time 10-12 weeks
Full service Support
Worldwide Delivery

Explore the UNI 500x700 from multiple angles

Machine Overview

UNI 500x700 maxi HDD rig for sale — Universal HDD factory direct
UNI 500x700 maxi pipeline HDD rig rear view
UNI 500x700 maxi HDD rig right side view
UNI 500x700 most powerful directional drilling rig front view
UNI 500x700 large bore directional drill left side view
UNI 500x700 heavy-duty tracks and undercarriage detail
UNI 500x700 heavy-duty tracks and undercarriage detail
UNI 500x700 heavy-duty side anchor flanges detail
UNI 500x700 600 HP turbo diesel engine compartment
UNI 500x700 600 HP turbo diesel engine compartment
UNI 500x700 most powerful HDD rig manufactured in USA
UNI 500x700 maxi pipeline HDD rig for sale factory direct
UNI 500x700 600 HP turbo diesel engine compartment
UNI 500x700 maxi HDD rig on major pipeline jobsite
UNI 500x700 multi-person panoramic control station
UNI 500x700 multi-person panoramic control station
DOWNLOAD SPECIFICATIONS CALL (847) 955-0050

The UNI 500x700 is the flagship of the Universal HDD maxi-class horizontal directional drill lineup — the most powerful horizontal directional drilling rig in the UNI series, purpose-built for major pipeline contractors and energy sector operators who demand maximum pulling force, exceptional torque, and precision control for the largest and most complex trenchless projects in North America.

With 500,000 lbs of thrust and pullback and 70,000 ft-lb of spindle torque, this maxi hdd rig represents the pinnacle of custom-engineered hdd drilling machines. For contractors looking for the biggest horizontal directional drill available, or a maxi rig hdd for the most demanding pipeline crossings, the UNI 500x700 delivers unmatched performance.

Powered by a 600 HP EPA Tier IV turbo diesel engine at 2,200 RPM, the UNI 500x700 delivers sustained high-production output on major pipeline crossings, extended bore lengths, and large-diameter pipe installations. As a pipeline boring machine, this maxi hdd rigs solution outperforms any other horizontal directional drilling rig in its class.

Ideal for major oil and gas transmission pipeline crossings, large-diameter river and waterway crossings, interstate highway and major infrastructure crossings, high-pressure large-diameter pipeline installation, and extended long-distance bores requiring 500,000+ lb pullback in TX, CO, OK, PA, ND energy corridors.

Drill rod configurations: 5.5" FN 30 ft or 6.625" FN 30 ft. Standard: Multi-Person Panoramic Control Station with climate control and vibration-reducing air-suspension seating, Parallelogram Mast System, Heavy-Duty top-entry rod loading, Heavy-Duty side anchor flanges, UNI Curve System, Wireless Remote Control, Hot and Cold Weather packages.

Manufactured in Lake Zurich, IL, USA. Lead time 10–12 weeks. Request a quote at (847) 955-0050.