Skip to main content

Quieter demolition

Hydrodemolition specialist Aquajet is offering an improved, low-noise power pack for its equipment. Redesigned to meet tough restrictions on noise emissions for equipment used in urban locations, the power pack is also more economical on fuel, an important point given fast rising fuel costs. The firm's hydrodemolition unit is aimed at concrete scarification and removal, and the noise levels from the new Ecosilence Power Pack are so low that normal conversation can continue alongside as it operates. Accordin
July 30, 2012 Read time: 2 mins
Hydrodemolition specialist 2784 Aquajet is offering an improved, low-noise power pack for its equipment.

Redesigned to meet tough restrictions on noise emissions for equipment used in urban locations, the power pack is also more economical on fuel, an important point given fast rising fuel costs.

The firm's hydrodemolition unit is aimed at concrete scarification and removal, and the noise levels from the new Ecosilence Power Pack are so low that normal conversation can continue alongside as it operates.

According to Aquajet, the power pack generates 66.5dB, at least 10dB lower than conventional models (conventional units generate noise levels from 78dB-82dB, depending on the manufacturer and application).

Ecosilence Power Pack's reduced fuel consumption is claimed to save an estimated €35,000/year in typical operation. Conventional power packs use from 105-120litres/hr of fuel: the improved Ecosilence unit uses just 70litres/hr when producing a flow rate of 189litres/min at 1000bar at 73% power.

Improvements include a 40% increase in sound insulation with tailor-made seals for doors and hatches to cut noise propagation and acoustic surface treatment and sound-absorbing insulation to reduce noise and vibrations in the sides.

The Ecosilence powerpack has a sophisticated heat exchange system in place of conventional cooling as well as a new exhaust silencer. Other improvements include a new vibration dampener as well as upgrades to internal pipes, hoses and tubing.

Power now comes from a 783 Volvo Penta marine diesel engine, which delivers a high torque range from 1,100-1,800 rpm, as well as having low noise characteristics and high fuel efficiency. The high pressure water output is from a 522kW plunger pump.

For more information on companies in this article

Related Content

  • It’s Miller time for Doosan excavators and loaders in Scotland
    April 17, 2018
    Scottish Doosan dealer Balgownie has supplied new Doosan DX225LC-5 22tonne and DX255LC-5 25tonne excavators and a new DL420-5 wheeled loader to Miller Plant. Miller Plant offers services from bulk earthworks and contract crushing and screening to plant hire, site clearance, demolition, aggregate supply and heavy haulage and tipper hire. As the machines will do more than 60 hours a week each, they come with a peace-of-mind five-year warranty and Balgownie’s fast response to requests and service support.
  • Low-emission construction machine engines launched
    April 20, 2012
    Deutz has unveiled its latest range of 2.9-16litre EU emission standard diesel engines. The TCD 2.9 L4 is available in either naturally aspirated or turbocharged versions, each with the optional extra of an intercooler. It features cooled external exhaust-gas recirculation and common-rail high-pressure fuel injection. Generating up to 55.4KW, the TCD 2.9 L4's maximum torque of 255Nm is up to 15% higher than comparable Tier 3 engines.
  • New driveline developments boost machine efficiency
    April 24, 2013
    Advances in transmission technology will help to optimise machine performance – writes Mike Woof. As construction machines have become more sophisticated, so have the transmission systems used in items of equipment. Advances in electronics and software in particular have allowed the development of integrated transmissions. These operate more efficiently and help optimise power delivery from an engine, boosting torque response and cutting fuel consumption and emissions at the same time. The smart electronics
  • Super paving with Aggregate Industries’ SuperThin
    February 21, 2019
    Aggregate Industries’ contracting division recently laid a total of 1,800 tonnes of an ultra-low noise asphalt at Brampton Hut Services in Huntingdon in one weekend. Section 1 of Highways England’s A14 Cambridge-to-Huntingdon Improvement Scheme will see 21km of the road upgraded to three lanes in each direction and is expected to cut journey times by up to 20 minutes. The pavement works at Brampton Hut motorway services specified minimum sound level requirements of -7.5db (A). The limits are designed