37
d
&
ri
JULY-AUGUST 2013
H
usqvarna Construction has added
two new demolition robots to its
existing three model line-up
discussed in the last issue of this magazine
in the form of the 1,750 kg (3,850 lb)
DXR 270 and the 1,960 kg
(4,312 lb) DXR 300.
Commenting on
the launch of the two
new 1,000-2,000kg
robots, Husqvarna
believes it is now
able to offer
its customers a complete series of remote
demolition robots. Husqvarna global product
manager Lars Gustafsson said: “We can now
offer customers robots in the 1,000–2,000
kg range, depending on the needs of the
customer.
He said of the smaller DXR 270: “We have
developed the DXR 270 because we have seen
a demand for lighter units in this equipment
segment. With its compact design and low
weight, it is easy to transport as it fits through
all normal doorways and can be transported
in most lifts, while the larger
DXR 300 is only 78 cm wide.
That means it will also fit
through most doorways
and construction
lifts, making it
suitable for diverse
applications within
the construction area,”
The 19 kW DXR 270, along
with the 300 and 310 machines,
features new outriggers with a wider 160 cm
(64 inch) span to provide increased stability
but also to allow the machines to carry a
greater payload. According to Husqvarna, its
fixed boom arm design is stable, durable and
requires minimal maintenance, and delivers
precise tool positioning while the machine is
working. Its low height provides a clear view
of the tool for the operator while the machine
is being worked while further enhancing
stability. As with the company’s other robots,
the machine is controlled by a modular CAN
based PLC that is easy to use and features
a 8.75 cm (3.5 inch) colour display. It has a
reach of 5.2 m (17 ft).
The 22 kW DXR 300 has a reach of
6.2 m (20.4 ft) and uses the same control
system as its smaller brother. Thanks to
the new outriggers, it can carry in excess
of 400 kg (880 lb), and according to the
company, is ideal for concrete and brick
demolition applications in staircases, roofs
and balconies, as well as sensitive locations
such as courtyards, since the control system
is adapted to handle conventional demolition
environments with high vibrations, concrete
dust and water.
■
EQUIPMENT
The DXR270’s
compact dimensions
and low profile make it easy to
operate
Robotic double
from Husqvarna
The DXR300 has a fixed
arm to provide precision
tool placement
Liebherr has unveiled its first hybrid excavator
– the concept R 9XX machine, pioneering the
company’s in house developed diesel/electric
powertrain technology. Billed as an example
of energy recuperation techniques that will be
possible in the future, the 40 tonne R 9XX is
powered by a 160 kW (215 hp) Liebherr diesel
together with hydraulic and electrical energy
storage devices. A pressure reservoir
and a generator are used to recover
hydraulic energy. This combination of
electrical and hydraulic power train
is said to reduce fuel consumption,
but at the same time increase the
excavator’s load handling performance.
