Operator comfort, easy maintenance and enhanced productivity
As always, operator comfort remains a top priority for Case, and the DV Series compactors feature an iso-mounted
operator platform that minimizes vibration and reduces operator fatigue. Operators also have superior visibility to
the drum edge on both sides of the machine with a lateral sliding seat as standard equipment, even on the smallest
machine. The automatic vibration control system includes automatic or operator-controlled start and stop to the
drum.
The machines are built to minimize maintenance time and maximize productivity for years to come. Routine
maintenance is performed easily with the gas strut assist opening hood and unmatched access to key internal
engine components. The compactors feature an external fuel fill and Teflon articulation joint. In addition, all check
points are conveniently located on one side of the machine for faster service.
The Case DV23, DV26, DV36 and DV45 asphalt rollers have drum widths ranging from 39 inches (1,000 mm) to
54 inches (1,380 mm), and operating weights from 4,960 lb (2,250 kg) to 10,295 lb (4,670 kg).
Indoor edition of 100 t Grove all-terrain crane
Two specially designed GMK4100 mobile cranes from
Grove, customized for work indoors and in tight industrial
spaces, have completed their first job. The 100 t capacity
cranes lifted an 82 t piece of machinery at a 6.5 m radius
inside a manufacturing facility just 10 m tall in Germany.
The GMK4100S’s 35.6 m boom is shorter than the
standard GMK4100L (which has a 60 m boom) and is
capable of telescoping loads of up to 50 t and lifting
32 t with the boom horizontal. When retracted, the
crane’s boom is just 8.5 m long. The crane also features
a tiltable boom head with hydraulic pinning to improve
under roof reach and a new compact hook block that
combine to offer market-leading lift ability in a compact
package.
Andreas Cremer, all-terrain cranes product manager at Manitowoc, oversaw the special project to create the
new crane.
“Designing a 100 t crane for indoor use presents a lot of challenges but it gave us the opportunity to design
something unique,” he says. “We know the standard version is a very capable crane and so our experienced
engineers got to work adapting it. We’ve made a lot of specialized design changes and created a compact machine
that doesn’t compromise on strength.”
The customized crane features the same number of boom sections but each section has been shortened to
reduce the length of the boom itself. The crane also features a shortened telescopic cylinder taken from the
GMK5130-2, which gives better telescoping strength up to 50 t. With a greatly reduced boom weight, the crane has
the stability and capacity to lift impressive loads at shallow angles, including at zero degrees, where the crane can
lift 32 t at an 8 m radius or up to 4.2 t with the boom fully extended to 36 m.
In addition to giving the crane excellent indoor lift abilities, Manitowoc also had to make numerous design
adjustments to allow it to operate in very tight locations. For example, the company created a tiltable boom head
and new compact hook block. The tiltable boom head means the boom can extend closer to the ceiling while the
compact hook block brings the hook closer to the boom and allows the crane to perform lifts at tighter angles.
At just 10.7 m long, the carrier with all-wheel steering and Megatrak suspension is highly manoeuvrable. The
four-axle crane can also be configured with a GVW of 40 t, 44 t or 48 t, making it ideal for easy transport on German
and other European roads.
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Contractors World - International Vol 4 No 3
What’s New in Plant & Equipment
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