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UNI 40x55 mid-range HDD rig for pipeline and utility drilling USA

UNI 40x55 HDD Rig

Mid-range horizontal directional drill engineered for pipeline, utility and infrastructure drilling. 40,000 lbs pullback across USA.

UNI 40x55 HDD Rig

Mid-range horizontal directional drill engineered for pipeline, utility and infrastructure drilling. 40,000 lbs pullback across USA.
Push/Pull

40,000 lbs

Torque

5,500 ft-lb

Engine

140 hp

Mud Pump

107 gpm

UNI 40x55 Mid-Range Horizontal Directional Drilling Rig for Pipeline and Utility Work

The UNI 40x55 is a mid-range horizontal directional drilling rig built for pipeline and utility contractors who need serious pulling power for longer bores, larger pipe diameters, and challenging ground conditions.

With 40,000 lbs of thrust and pullback and 5,500 ft-lb of rotary torque, the UNI 40x55 handles demanding trenchless installations across a wide range of soil and rock conditions. Powered by a 140 HP turbo diesel engine with a high-capacity mud system delivering up to 107 gpm, this directional boring machine delivers reliable pipeline and utility performance.

Features the UNI Curve System, four-point Stake-Down anchoring, and Air Hammer Ready configuration for rock drilling. Available with Panoramic Operator Cab and all-weather packages.

DOWNLOAD SPECIFICATIONS CALL (847) 955-0050

Specification and Dimensions UNI 40x55

Parameters Imperial Metric
Thrust / Pullback (max) 40,000 lbs 178 kN
Spindle Torque (max) 5,500 ft-lb 7,457 Nm
Spindle Rotation Speed (max) 200 rpm 200 rpm
Carriage Speed (max) 180 fpm 55 m/min
Operation Angle 18° 18°
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
Air Hammer Ready Configured for air hammer drilling in rock applications Option
Rod Loading System Semi-automatic bottom feed or top feed Option
System/ Feature Description Option
Wired Remote Control Full control for maneuvering, loading, and setup operations Standard
Wireless Remote Control Full control for maneuvering, loading, and setup operations Option
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
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 operators to identify issues in real time and significantly reduce troubleshooting time in the field job site Standard
System/ Feature Description Option
Stake-Down System Four-point auger anchoring system for secure ground stability, operated from the operator console Standard
Breakout System Breakout system with automatic mud pump shut-off and pressure relief Standard
Parameters Imperial Metric
Mud Pump Model Kerr KM-3300PT Kerr KM-3300PT
Flow (max) 107 gpm 405 lpm
Pressure (max) 1,000 psi 68.9 bar
Parameters Imperial Metric
Fuel Tank 40 gal 182 L
Hydraulic Tank 55 gal 250 L
Parameters Imperial Metric
Length 297 in 754 cm
Width 102 in 259 cm
Height 121 in 307.3 cm
Weight with rods 17,900 lbs 8,119 kg
Parameters Imperial Metric
Engine Type Turbo Diesel Turbo Diesel
Fuel Type Diesel Diesel
Gross Horsepower 140 hp 104.4 kW
Rated RPM 2,400 rpm 2,400 rpm
EPA Certification Final Tier IV Final Tier IV
Parameter Size & Thread type Basket Capacity
Drill Rod Option 1 2,625" x 10 ft Firestick I #700 54 rods
Drill Rod Option 2 2,625" x 15 ft Firestick I #700 40 rods
System/ Feature Description Option
Panoramic Operator Cab Enclosed cab with climate control for all-weather operation Option
Hot Weather Package Additional hydraulic cooling system for reliable operation in high ambient temperatures Option
Cold Weather Package Electric hydraulic oil tank preheater and engine coolant preheater with programmable timer for reliable operation in low-temperature conditions. Option
DOWNLOAD SPECIFICATIONS CALL (847) 955-0050

Key Features & Available Options

UNI 40x55 107 gpm mud pump drilling fluid system

Mud pressure relief system

Protects system components by regulating pressure during drilling operations

UNI 40x55 rod loading system bottom feed detail

Rod Loading System

Semi-automatic bottom feed or top feed

UNI 40x55 panoramic operator cab climate control

Panoramic climate-controlled cab

Provides all-weather comfort with wide visibility for safer operation

UNI 60x90 Integrated diagnostic system

Integrated Diagnostic System

Supports rock drilling applications with efficient air hammer integration

UNI 40x55 available drill pipes

Drill Pipe Compatibility

10 ft and 15 ft length · Firestick I connection

Manufactured in USA
Lead time 4-6 weeks
Full service Support
Worldwide Delivery

Explore the UNI 40x55 from multiple angles

Machine Overview

UNI 40x55 HDD rig for sale — Universal HDD factory direct
UNI 40x55 mid-range directional drilling rig front view
UNI 40x55 horizontal boring machine rear view
UNI 40x55 directional drill right side view
UNI 40x55 107 gpm mud pump drilling fluid system
UNI 40x55 rod loading system top feed detail
UNI 40x55 mid-range directional drill manufactured in USA
UNI 40x55 107 gpm mud pump drilling fluid system
UNI 40x55 107 gpm mud pump drilling fluid system
UNI 40x55 panoramic operator cab climate control
UNI 40x55 panoramic operator cab climate control
UNI 40x55 UNI Curve System bore path control detail
UNI 40x55 pipeline HDD rig for sale factory direct
UNI 40x55 remote control
UNI 40x55 107 gpm mud pump drilling fluid system
DOWNLOAD SPECIFICATIONS CALL (847) 955-0050

The UNI 40x55 is a mid-range horizontal directional drill engineered for pipeline and utility contractors who need high pullback capacity for demanding trenchless projects. With 40,000 lbs of thrust and pullback and 5,500 ft-lb of spindle torque, this horizontal directional drilling rig bridges the gap between utility-class hdd machines and large pipeline drills — delivering proven directional boring machine performance on water mains, gas transmission lines, telecom conduit, and road crossings.

Powered by a 140 HP EPA Final Tier IV turbo diesel engine at 2,400 RPM, the UNI 40x55 runs the Kerr KM-3300PT mud pump delivering 107 gpm at 1,000 psi — providing efficient borehole cleaning across mixed ground conditions including clay, sand, gravel, and soft rock. Contractors looking for a directional drill for sale in the mid-range class will find the UNI 40x55 a capable horizontal drilling rig for pipeline and utility work.

Ideal for gas transmission and distribution pipeline installation, water main and municipal infrastructure projects, telecom and fiber optic conduit long-distance bores, highway and road crossing installations, and rock drilling with Air Hammer option.

As an underground boring machine for mid-range pipeline projects, the UNI 40x55 is available in two drill rod configurations: 2.625" x 10 ft Firestick I #700 (54 rods) or 2.625" x 15 ft Firestick I #700 (40 rods) for maximum flexibility.

Manufactured in Lake Zurich, IL, USA. Lead time 4–6 weeks. Request a quote at (847) 955-0050.