300V brush­less DC mo­tor

DEMM Engineering & Manufacturing - - MOTORS & DRIVES -

New 300V wind­ing for heavy duty brush­less DC mo­tor. This spe­cialised mo­tor is for use sub­merged in oil and is de­signed specif­i­cally for the ROV and sub­sea mar­ket.

The first de­liv­ery has just taken place of maxon mo­tor Aus­tralia’s new range of brush­less DC mo­tors de-signed to op­er­ate on a 300V power sup­ply. From a di­am­e­ter of only 32mm the unit is ca­pa­ble of power lev­els of 480W, speeds up to 12,000 rpm and can op­er­ate sub­merged in oil at up to 200C. The four pole lay­out achieves a power den­sity of un­der two grams per Watt and is con­structed of a laser welded stain­less steel case and f langes. Laser weld­ing con­tin­ues in­side the mo­tor with an en­cap­su­lated ro­tor and weld seams at the bear­ing seats and shaft col­lars. The mo­tors bear­ings are left open with­out shields to al­low for the f lood­ing with oil. Ca­pa­ble of with­stand­ing high vi­bra­tion and ex­treme pres­sures makes the unit suit­able for oil and gas ap­pli­ca­tions, sub­sea ap­pli­ca­tions and there are also vari­ants for use in vac­uum.

www.demm.co.nz/reader-en­quiry #160222

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