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Fish feed producer saves 135,000 kWh per year

13 May 2018

Following replacement of an ageing, damaged DC motor on its principal extruder, Aller Aqua, a Danish specialist in aquafeed production has benefitted from significant annual savings in energy costs – up to 135,000kWh per year.

Aller Aqua is continually looking for ways to improve its production technology and processes to benefit from the growth in the farmed fish market. The company has a broad product range, consisting of feed for 30 species of fish. As a result, production schedules are demanding, which is why it sought to maximise its potential gains when the DC motor on one of its main extruders needed to be replaced.

Aller Aqua had a particular interest in energy efficiency for its new motor solution as extruding feed stuff is a very energy-intensive process. After evaluating possible solutions, the company opted for a 310 kW (2400 rpm) Dyneo permanent magnet synchronous motor, from Leroy-Somer, part of the Nidec group. Offering an efficiency level exceeding IE4 requirements, this option will enable the saving of at least 135,000 kWh of electricity per year.

Beyond energy performance, Aller Aqua is now also able to benefit from significant savings in maintenance costs, allied to increased machine availability, as the previous DC motor featured a brush and collector system, which included a variety of wearing parts. The Dyneo motor also allowed the existing installation to be simplified by eliminating the cooling/ventilation circuit required by the old motor. 


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