Underground Construction - May 2021 - 47

In addition to enlarged windows, the arms of
these models have been redesigned for better
visibility when connecting attachments with the
hydraulic coupler, enabling operators to connect
attachments without getting out of the cab. With
new delta-shaped loader arms that run parallel and
become narrow at the cab and widen at the end of
the loader arms, operator visibility is enhanced when
the bucket is lifted at full height.
Inside the cabs, a wide range of comfort features
reduce operator fatigue and boost productivity. By
moving the reconfigured console and switch layout
to the right side of the cabin, operators have more
foot and leg room, and all controls are just a finger
touch away.

the top of the handle, an operator can now select
high or low speed travel.
Standard 9018F features include a low-speed,
high-torque, Tier 4 Final Yanmar engine rated at 18
gross horsepower (17 net horsepower), as well as
auto-idle and auto shutdown.
Better fuel consumption is achieved through
a more efficient hydraulic system using 15- to
20-percent less engine power than its predecessor.
An improved load-sensitive hydraulic system, with
14.5-gallon-per-minute main pump displacement,

utilizes a proportional control valve for better management of flow distribution for all attachments.
Flow rate for the hammer-shear and hydraulic
thumb is set right from the operator's monitor. A
LiuGong hydraulic thumb ( " bucket grabber " ) comes
standard with the unit.
Travel pedals and joysticks give an operator hydraulic control for machine functions: travel, boom,
boom swing, arm, and bucket. Auxiliary hydraulic
functions are controlled by electrical proportional
solenoids for precise control. *

LiuGong North America
liugongna.com

New Ditch Witch All-Terrain Directional Drill Boosts Productivity
LiuGong North America, headquartered in Katy,
Texas, launched the first of its new F-series
excavators. The 1.8-metric-ton, mini-class, 9018F
represents the smallest of the powerfully efficient
LiuGong F-Series excavator models.
The unit is available with both a FOPS-rated
closed pressurized cab, featuring heater and
window defroster, as well as a TOPS-rated canopy
design. The closed cab 9018F version stands just 7
feet 9 inches tall, resulting in a lower height that all
but eliminates headspace concerns while traveling
through tunnels and beneath overpasses.
The 9018F's short stature, combined with a retractable undercarriage, give its operator access to
the most restrictive workspaces. Its 51-inch outsidetread-to-outside-tread measurement retracts to just
39 inches, allowing it to easily pass between onsite
obstructions and through almost any bay door.
" Its versatility is not solely a result of its compact
size, " said Mike Watt, product manager, LiuGong NA
Excavators. " The 9018F is a powerful, robust base unit
for a variety of attachments, and supports the installation of consumer-requested aftermarket add-ons. "
Back-filling or dozer operation no longer requires
the operator to remove his or her hand from blade
control to change travel speed. By simply pressing

To enhance utility contractors' productivity while drilling through hard rock, Ditch Witch has introduced
the AT32 all-terrain horizontal directional drill (HDD). The newly designed mid-size drill replaces the
AT30 and provides greater power and easier system operation for increased efficiency and profitability.
The AT32 features 4,200 foot-pounds of outer rotational torque and 1,200 foot-pounds of inner
rotational torque - 29-percent and 50-percent more, respectively, than its predecessor - to help
contractors stay productive on the job.
With 32,000 pounds (150 kW) of thrust and pullback, AT32 provides the power and stability necessary for efficient installations through tough ground conditions. The drill is powered by a 155-horsepower Cummins Stage V diesel engine that meets European emissions standards for a cleaner job site.
Further improving productivity downhole, AT32 features a new rod loading system that gives
operators the ability to carry 450 feet of all-terrain drill pipe on board - 30-percent more than the
AT30 - and manually insert additional sticks of pipe when running low.
In addition, a higher-powered fluid pump helps contractors get the most out of their machine by
providing 40-percent more fluid flow to help operators stay productive on longer bores with larger
diameters. It also allows for better efficiency with less wear and tear on your downhole tooling.
" The AT32 is in a class of its own, " said Jeff Davis, Ditch Witch HDD product marketing manager.
" It fills a gap in the mid-size HDD market, bringing full-size power to the job site without the full-size
footprint. The result is a more accessible, compact and versatile machine that provides boosted
productivity on a variety of rural and urban jobsites. "
AT32 follows the same modern design evolution as the latest Ditch Witch directional drills to
enhance operator comfortability and ease operator use. The consistent design also makes it easy for
current customers to step into the machine and instantly be familiar with its controls, features and
operator platform, which boosts uptime.
The drill also comes with Ditch Witch's Orange Intel Fleet Management System, which delivers
centralized fleet and machine information, maintenance indicators, and critical performance insights.
FOR MORE INFORMATION
Ditch Witch, (580) 336-4402, ditchwitch.com
UCONonline.com | MAY 2021

http://www.liugongna.com http://www.ditchwitch.com http://www.UCONonline.com

Underground Construction - May 2021

Table of Contents for the Digital Edition of Underground Construction - May 2021