expert opinion: - OPERC - Off-highway Plant and Equipment ...
expert opinion: - OPERC - Off-highway Plant and Equipment ...
expert opinion: - OPERC - Off-highway Plant and Equipment ...
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SPECIAL REPoRT<br />
Milestones...<br />
1911 Acquisition of the Swiss<br />
patent for a small walk-behind roller.<br />
Ulrich Ammann <strong>and</strong> his team can<br />
already look back on 42 eventful years<br />
of company history.<br />
26<br />
Articulated DTV 822<br />
at work on the asphalt surface of the Gotthard tunnel in 1978<br />
Ammann’s development engineers<br />
spontaneously embraced a welcome<br />
development in drive technology for<br />
compaction rollers <strong>and</strong> put it to many<br />
different uses – much to the benefit of<br />
the company’s customers. Mechanical<br />
drives were successively replaced by<br />
hydrostats that were soon available to<br />
the manufacturer in every performance<br />
category. This epochal development<br />
enabled the engineers to achieve<br />
goals that had previously seemed<br />
unattainable. Steplessly controllable<br />
drives <strong>and</strong> smooth-driving, reversible<br />
machines were soon an everyday<br />
occurrence on construction sites.<br />
Furthermore, these advantages soon<br />
become prerequisites for installing<br />
increasingly subtle bitumen recipes<br />
with the necessary fine control.<br />
Ammann was once again a step ahead<br />
of the dem<strong>and</strong>s raised by road-building<br />
engineers. The self regulating measuring<br />
June 2011<br />
<strong>and</strong> control system for compaction<br />
rollers patented as Ammann ACE<br />
<strong>and</strong> introduced during the mid-<br />
1990s transformed the machines<br />
into intelligent, thinking partners.<br />
This ingenious technology became<br />
available for Ammann machines of<br />
1914 Launch of the Rugel roller<br />
with a combustion engine.<br />
Complete DTV product range: 12, 152, 222, 472 <strong>and</strong> 822<br />
soPhisticateD DriVe technology: oil-hyDraulics<br />
1935 First mounted roller<br />
in the medium weight class enters<br />
the market.<br />
“everyone’s talking about it!”<br />
every type <strong>and</strong> class in the years that<br />
followed. Today, even hydrostatic<br />
vibratory plates from Ammann<br />
are able to increase or decrease<br />
their compaction force depending<br />
on the level of compaction <strong>and</strong> to<br />
inform the operator continuously<br />
of the compaction result.<br />
Heavyweight asphalt compactors AV 95-2 <strong>and</strong> AV 130X with ACE, 2010<br />
1967 The first Double<br />
T<strong>and</strong>em Vibratory roller DTV 22<br />
leaves the factory in Langenthal.
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