The ability to supply motors with custom engineered shafts and wide voltage bandwidth has enabled AEG Electric Motors to satisfy the requirements of Haigh Engineering of Ross-on-Wye for its HVL 'Filtramatic' macerators, which are used around the world with extensive use in both marine and offshore markets. The motor shaft has four step-downs and is precision ground. This is to accommodate secondary bearings employed to minimise shaft run-out and a vacuum/pressure water seal prior to the location of the cutter ring.
With customers around the world and a strong emphasis on maritime related applications, AEGs motors wide bandwidth (50Hz 190-220V and 380-400V, and 60Hz 190-240V and 380-440V) facilitates meeting many different international power requirements, ideal for Haigh Engineering with its many international markets.
Because of the importance of the maritime market for the macerators, the motors are built to Lloyds specification. Marine applications for the macerator are typically black water related where it is employed for reducing material before passing through to biological sewage treatment plant. Typical installations are on passenger vessels/ferries, offshore oil/gas rigs and platforms/FPSOs. The motor supplied to Haigh Engineering by AEG is the companys 3-phase AM112MAA4 2.2kW machine.