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

  • Engine supplier Volvo Penta is developing its partnership with Sandvik
    January 6, 2017
    Volvo Penta and Sandvik are co-operating on engine supply. Under the terms of the deal, Volvo Penta and Sandvik Mining and Construction have an agreement intended to boost the long-term competitiveness of Sandvik products. With rapid advances in technology and emission legislation, not only the choice of technology but also the choice of engine supplier has become an important issue for equipment manufacturers for the construction industry.
  • Engine supplier Volvo Penta is developing its partnership with Sandvik
    April 17, 2012
    Volvo Penta and Sandvik are co-operating on engine supply. Under the terms of the deal, Volvo Penta and Sandvik Mining and Construction have an agreement intended to boost the long-term competitiveness of Sandvik products. With rapid advances in technology and emission legislation, not only the choice of technology but also the choice of engine supplier has become an important issue for equipment manufacturers for the construction industry.
  • Key moves for diesel engine sector
    January 22, 2014
    A series of key moves are being seen in the diesel engine sector, with major firms offering new solutions – Mike Woof writes Several of the major engine builders are introducing key innovations from the beginning of 2014 to meet with tough new emissions regulations for Europe and the US. Another key issue is providing solutions for engine customers in countries with less stringent regulations on emissions. Caterpillar has developed options for customers in lesser regulated countries who may wish to buy seco
  • Electromobility in the off-highway industry
    September 14, 2020
    Electrification brings many benefits to off-road machines including zero exhaust emissions, improved efficiency and significantly reduced noise levels, so why aren’t we seeing more of them yet? Zeyd Okutan, Volvo Penta’s product manager responsible for the company’s Industrial Segment Electromobility Product Planning and Strategy, explains what direction the industry is heading in and what needs to happen before electric-powered machines become the norm