27 April 2015, 00:00
Very low hand-arm vibrations thanks to the new center pole for reversible plates
A new center pole for reversible vibratory plates from Wacker Neuson in the weight class from 300 to 800 kilograms, or 40 to 100 kN of compaction performance allows vibration values of less than 2.5 m/s² for hand-arm vibrations. According to the Directive 2002/44/EC of the European Parliament and of the Council on the minimum health and safety requirements regarding the exposure of workers to the risks arising from physical agents (vibration), the operator may therefore work without a time limitation with this equipment.
With a new damping concept for the center pole of the reversible vibratory plates, Wacker Neuson has managed to reduce the hand-arm vibrations to a value that allows the operator to work without a time limitation and at the same time provides for more comfort and safety. Since the values are not only below the threshold for hand-arm vibrations of 5 m/s², but rather are also well below the trigger value of 2.5 m/s², the plant manager also saves the statutory burden of documentation and instruction of the employees. This means more time for other tasks. The diesel-powered vibratory plates DPU 4545, DPU 5545 and DPU 6555 achieve values of less than 1.5 m/s². The DPU 4045 lies at just 1.2 m/s².
Oliver Kolmar, product manager for reversible vibratory plates at Wacker Neuson, says: "With this new equipment generation, it was important to us to find an optimal balance between maneuverability and vibration damping in the center pole. The new vibratory plates are precisely guided with little effort and at the same time maintain a high level of operating comfort due to the low hand-arm vibrations."
Strong performance – more comfort
As a part of the revision, Wacker Neuson made additional improvements to the center pole. For example, the throttle lever now has an easily selectable idling position that prevents an accidental turning off of the machine. The Bowden cable for the engine speed adjustment runs inside of the center pole. This prevents the wire cable from being damaged. More stability during transport is also provided by the sturdy center pole lock, which was taken from the time-tested and proven model DPU 100-70 for all vibratory plates 300 kilograms and above. Changes to the new equipment generation only affect the center pole. The time-tested and proven machine and compaction performance remains unchanged.
The advantages for customers are obvious: they have powerful vibratory plates, save time and money due to the reduced documentation and training effort and operators benefit from the low hand-arm vibrations, which ensure more comfortable and gentle work.
With the introduction of the new center pole, Wacker Neuson is now offering the entire product series of reversible vibratory plates - from 140 to 800 kilograms - with an operating time of at least one working day, since the vibration values are below the trigger value of 2.5 m/s², or for the 30 kN equipment are below the exposure limit value of 5 m/s² (permissible working time: 8 hours per day).