High torque low speed DC mo­tor – cus­tom made

DEMM Engineering & Manufacturing - - PRODUCT WATCH -

This new maxon brush­less DC flat mo­tor is 68mm di­am­e­ter and only 38mm long de­liv­er­ing 100W of power on a con­trolled 24V sup­ply. The de­sign is unique in that it com­bines a 14 pole mo­tor wound in a three phase con­fig­u­ra­tion that de­liv­ers a high torque and low speed. This brush­less DC mo­tor is also unique in that it has a 4096 count per turn en­coder built in­side the mo­tor that does not con­trib­ute any ad­di­tional length. Act­ing as a torque mul­ti­plier is a 42mm 936:1 ce­ramic plan­e­tary gear­head. In this ex­am­ple we have shown a ver­sion with a cus­tomised shaft that has both been turned down in di­am­e­ter and ma­chined with an ad­di­tional flat. The gear­head ra­tio com­bined with the en­coder res­o­lu­tion gives a po­si­tion res­o­lu­tion of 3.8 mil­lion counts per revo­lu­tion. This high torque and high po­si­tion­ing res­o­lu­tion makes the brush­less mo­tor suit­able for po­si­tion­ing of heavy loads in the man­u­fac­tur­ing in­dus­try or also for the ac­cu­rate con­trol of sen­sors or valves in fluid han­dling pro­cesses.

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