international
construction
january-february 2014
COMPACT EQUIPMENT
40
Exhaust emission impetus
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Bobcat for example has releases its first Tier 4 loaders with
seven medium sized skid steer and tracked, machines in the most
popular classes featuring engines without diesel particulate filters.
Built around its 500-series frame, the machines in question are
the S510, S550 and T550 radial lift path loaders, which are suited
to digging and dumping applications, and the S530, S570, S590
and T590 vertical lift path models, which are better for loading
at height.
These machines offer rated capacities up to 998 kg, and come
with several new features such as a machine protection system
that monitors, manages and shuts down the engine if there
is a problem like coolant or oil temperatures getting too high.
Meanwhile, a cold weather protection system limits maximum
engine revs to prevent damage if oil temperatures are too low.
Reduced tail swing
In the excavator segment meanwhile, Bobcat has two new
machines in the shape of the 6 tonne class E62 and 8 tonne class
E85 reduced tail swing (RTS) models, which replace the E60 and
E80.
Power for both comes from a Yanmar engine, with the
44.3 kW unit in the E85 offering +10% more power than was
available in the E80. EGR and a DPF are used to meet exhaust
emission requirements, and Bobcat also said there had been big
improvements in fuel efficiency over the previous model.
Both excavators feature upgraded hydraulic systems resulting
in higher pressures and flows, generating smoother and greater
digging and lifting performances.
The new E62 compact excavator offers a +10% increase in the
arm digging force to 28.7 kN and an +8% increase in the bucket
digging force to 43.1 kN in the short arm version. In the E85
Hanix’s new H09D micro and H17D are designed with the rental industry in mind,
with steel body panels and a top-mounted boom cylinder to protect it from damage.
One of Doosan’s latest compact radius excavators is the 6
tonne class DX62R-3. A similar machine is available from the
company’s specialist compact equipment subsidiary, Bobcat,
as the E62.
Perfect fit
Track width helps seal a sale for Hyundai
D
SB Civil Engineering of Kirkby Stephen, UK has taken delivery of a new Hyundai
R55-9A 5.8 tonne excavator. It is only the third machine off the production line, and
the first to be sold in the UK.
The mini excavator was bought for use on a railway embankment stabilisation project,
and a crucial selling point was its width. It fits between the train tracks with just 3 mm to
spare, which means it can be used without the risk of tipping over.
The R55-9A was delivered direct from the Hyundai factory with no modifications. David
Bainbridge of, DSB Civil Engineering said, “This new excavator can drive up onto the
railway tracks with no extra machinery needed. There have been one or two excavators on
the market from other manufacturers but the nearest is 20 mm too wide – therefore not
nearly as safe or effective as the new Hyundai mini.”
One of Ditch Witch’s last additions is the SK750 mini
skid steer loader, which is available with as many as 70
attachments and offers 800 lbs (363 kg) of lift capacity.
