Resonance Free Vibratory Hammers are ideal for noiseless operation

 Suretech Infrastructure Pvt. Ltd. is an authorised dealer of ICE-Holland, Netherlands (known as Dieseko Group BV) for their wide range of Hydraulic Vibratory Hammers, Resonance Free Vibratory Hammers, Excavator Mounted Vibratory Hammers, Earth Augers and Submersible Dredge Pumps.

“Dieseko Group is not only the largest supplier of Vibratory Hammers in the world but by far the largest in India. We have been the dealers of ICE Vibratory hammers from Dieseko Group for the past 12 years and are proud that we have supplied nearly 200 machines to Indian customers,” says Surajit Mukherjee, Managing Director, Suretech Infrastructure. 

The unique features of ICE Resonance Free Vibratory Hammers are discussed here.

ICE Resonance Free Vibratory Hammers
Resonance Free Vibratory Hammers are ideal for noiseless operation. Conventional vibro hammers have a constant eccentric moment. While passing the critical frequency area during start-up and stop, the constant amplitude causes disturbing negative vibrations in the boom of the crane and in the soil; not just at the spot, but with a considerable perimeter distance.

When using a Resonance Free Vibratory Hammer with an adjustable frequency of 0 to maximum 2,350 revolutions per minute, critical vibrations in start-up and stop are eliminated. After passing the critical frequency area, the eccentric weights are automatically adjusted and synchronised to the current eccentric moment.

Function
During the start-up of the vibratory hammer to the maximum frequency of 2,350 revolutions per minute, the eccentric moment is ‘0’. The eccentric weights cancel each other out and no vibrations (amplitude) are generated.

When reaching the maximum frequency, the automatic adjustment of the eccentric weights takes place – the so-called ‘in moment’ amplitude.

As the vibro hammer already reached its maximum frequency, there is no question of passing a critical frequency. Disturbing vibrations during start-up and stop are eliminated.

“The adjustment of the eccentric weights is completely automated. As manual (remote) control for shifting the eccentric weights is possible, the most ideal amplitude can be generated for each soil type,” informs Mr Mukherjee.

It is not required to readjust the vibro hammer when stopped and re-started. The hammer will automatically select the last setting. With RF, it is possible to maintain the hammer at its maximum frequency while bringing the eccentric moment to ‘0’. The hammer can be brought to standstill without causing any vibrations.

According to Mr Mukherjee, “Resonance Free Vibro Hammers can work next to even dilapidated structures without causing any damage. The advantage of Resonance Free Vibratory Hammers is that these do not pass bad or harmful vibrations to the surroundings and thus can work in city centres and congested areas.”

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The advantage of Resonance Free Vibratory Hammers is that these do not pass bad or harmful vibrations to the surroundings and thus can work in city centres and congested areas.

Surajit Mukherjee, Managing Director,
Suretech Infrastructure