Truck & Off-Highway Engineering - April 2020 - 27
FROM TOP: SAE/SHUTTLEWORTH; HYUNDAI CONSTRUCTION EQUIPMENT
ORIGINAL EQUIPMENT
near-ideal conditions of firm, flat surfaces with a grade of 5 degrees or less.
With current ANSI (American National
Standards Institute) standards, after 5°,
traditional boom lifts are cut off in
terms of functionality. "If they are uneven, they cannot ascend," Hoover said,
adding that the new 670SJ boom lift is
also able to drive at height while maintaining active leveling.
"As an alternative, we've seen people
simply taking boards and shoving them
under a tire just to be able to get it level
for a period of time," Hoover said.
"We've also seen them having to use
excavating equipment in order to create
a level location in uneven terrain.
Another pain point they shared was
having to use a very high-value, larger
boom lift in order to do the job. They
would take this large machine, whether
it was an 800-series or even an ultraboom, place it at a distance from the
building and reach over all the terrain."
Besides offering safety and productivity benefits, JLG also discovered that
the self-leveling suspension helped reduce operator fatigue because the platform was continuously level and tools
and materials on the platform do not
shift as they normally would. This new
technology will be phased into production across a wide range of models, the
company said, and will evolve to meet
international compliance standards in
the future. "Our hope is that this becomes a 'Why didn't we have this before?' type of moment for the industry,"
said Hoover. "Now that it's here, let's
make it universally applicable."
The 670SJ will be available for shipment to North America-based customers in fall 2020. A limited number of
pre-orders for the 670SJ were being
taken at ConExpo. "We believe the
670SJ self-leveling boom is a step
change for the industry; a technology
that will transform the way people work
at height," said Milan Klimes, senior
chief engineer for JLG.
Ryan Gehm
Read more ConExpo
coverage at www.sae.org
TRUCK & OFF-HIGHWAY ENGINEERING
Hyundai reveals compact electric excavator
prototype
The 2-ton-class R18E prototype is Hyundai's first electric-powered compact excavator and is
designed for use both indoors and in urban settings.
Hyundai Construction Equipment
Americas (HCEA) demonstrated a working prototype of its electric-powered
compact excavator at ConExpo-Con/Agg
2020 in Las Vegas. The R18E would be
Hyundai's first electrically powered compact excavator to be introduced to the
market. The R18E uses a Li-ion (lithium
iron phosphate type) battery, generating
a power capacity of 19.6 hp (14.6 kW). Its
battery charger is rated at 3 kW, with a
free-voltage range of 100-230 V AC.
Designed and engineered in-house in
Korea, Hyundai debuted the prototype at
a media event at its ConExpo indoor
booth. Electrically-powered compact excavators offer a variety of benefits, including no carbon emissions and quiet operations, noted Tito Sosa, HCEA senior product specialist. "One key feature about this
electric type of machine is the quietness,
of course," Sosa said during the demonstration. The R18E operates at 70.1 dB.
The prototype Hyundai R18E is a
2-ton-class machine designed for use
both indoors and in urban settings.
"That really isn't a big market in the
compact excavator size but still, given
its niche application, we get a lot of
interest for indoors applications -
basements, metros, subways, indoor
pools - so there's really an interest for
it right now. We're just wanting to see
what the demand is. We anticipate it at
full production as soon as the demand
comes to us," Sosa said.
Offering power and productivity
The R18E uses a Li-ion battery and inductiontype motor generating a power capacity of 19.6
hp (14.6 kW), and its 3-kW battery charger has
a free-voltage range of 100-230 V AC.
equivalent to the diesel-powered
Hyundai R17Z-9A compact excavator,
the R18E is 60% more energy-efficient.
With an operating weight of 3,800 lb
(1,725 kg), digging depth of 7 ft 11 in.
(2,405 mm), and dump height of 8 ft 10
in. (2,680 mm), the R18E is powered by
an induction-type motor, with a onehour current rating of 225 amps.
Digital control is provided through a
microcontroller. The excavator can operate up to eight hours on a full charge
and can be fully recharged in five hours.
Hyundai expects to have the R18E in
production early next year yet anticipates a possible 2022 production.
Jennifer Shuttleworth
April 2020 27
https://www.sae.org/
Truck & Off-Highway Engineering - April 2020
Table of Contents for the Digital Edition of Truck & Off-Highway Engineering - April 2020
Contents
Truck & Off-Highway Engineering - April 2020 - Intro
Truck & Off-Highway Engineering - April 2020 - Cover1
Truck & Off-Highway Engineering - April 2020 - Cover2
Truck & Off-Highway Engineering - April 2020 - Contents
Truck & Off-Highway Engineering - April 2020 - 2
Truck & Off-Highway Engineering - April 2020 - 3
Truck & Off-Highway Engineering - April 2020 - 4
Truck & Off-Highway Engineering - April 2020 - 5
Truck & Off-Highway Engineering - April 2020 - 6
Truck & Off-Highway Engineering - April 2020 - 7
Truck & Off-Highway Engineering - April 2020 - 8
Truck & Off-Highway Engineering - April 2020 - 9
Truck & Off-Highway Engineering - April 2020 - 10
Truck & Off-Highway Engineering - April 2020 - 11
Truck & Off-Highway Engineering - April 2020 - 12
Truck & Off-Highway Engineering - April 2020 - 13
Truck & Off-Highway Engineering - April 2020 - 14
Truck & Off-Highway Engineering - April 2020 - 15
Truck & Off-Highway Engineering - April 2020 - 16
Truck & Off-Highway Engineering - April 2020 - 17
Truck & Off-Highway Engineering - April 2020 - 18
Truck & Off-Highway Engineering - April 2020 - 19
Truck & Off-Highway Engineering - April 2020 - 20
Truck & Off-Highway Engineering - April 2020 - 21
Truck & Off-Highway Engineering - April 2020 - 22
Truck & Off-Highway Engineering - April 2020 - 23
Truck & Off-Highway Engineering - April 2020 - 24
Truck & Off-Highway Engineering - April 2020 - 25
Truck & Off-Highway Engineering - April 2020 - 26
Truck & Off-Highway Engineering - April 2020 - 27
Truck & Off-Highway Engineering - April 2020 - 28
Truck & Off-Highway Engineering - April 2020 - 29
Truck & Off-Highway Engineering - April 2020 - 30
Truck & Off-Highway Engineering - April 2020 - 31
Truck & Off-Highway Engineering - April 2020 - 32
Truck & Off-Highway Engineering - April 2020 - Cover3
Truck & Off-Highway Engineering - April 2020 - Cover4
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