Repair Disc cutter CM12Y. Armature assy burned out

[Jonny Vee]

Hi All,

Does anyone know if can try and get an aftermarket replacement for this parts.

It is the armature assy for electric disc cutter

Someone decide to use a 110v into a 230v and this has completely burned out.

Armature Ass'y 110 Volt - Genuine Hikoki Hitachi Part - OEM No. 360287C

Overview: The Armature Ass'y 110 Volt is a genuine Hikoki Hitachi part, designed specifically for use in power tools requiring reliable electrical components. This armature assembly is crafted to ensure optimal performance and durability, making it an essential component for maintaining the...

www.lsengineers.co.uk

Thanks

 

[jj4091]

They seem to be available with a google search but not as cheaply as your link, perhaps that's why they are out of stock.

 

[bernardgreen]

If the armature windings have been burnt then there is every chance that the field windings will also be damaged.

 

[conny]

It may be better to consider replacing the whole cutter against the cost, (and time), of replacing various parts.
As @bernardgreen says, there is a high chance the field coils will also have been damaged. Maybe not burnt out, but certainly they would have over heated and possibly damaged the insulation between the turns.

Are you sure they used 110v to supply a 230v unit? Or was it the other way round, 230 into a 110 unit?
Using 110v into a 230v unit will actually lower the amps, not raise them, whereas using 230v into a 110v unit will more than double the amps, thereby causingit to burn out. The incorrect voltage will also affect other things such as the power rating and probably speed etc.
I would go for a whole new unit and charge the cost to the person who damaged it. It raises the question as to how they used the wrong voltage if it had the correct plug fitted.

 

[bernardgreen]

If the field winding is damaged and is only able to produce a weak magnetic field then there is a serious risk of the motor over speeding and self destructing as centrifugal force tears the armature apart.

Google ~~ "field winding" overspeed ~~ for a detailed explanation.

This relates primarily to DC motors but AC motors can also suffer a similar fate

 

[Jonny Vee]

It may be better to consider replacing the whole cutter against the cost, (and time), of replacing various parts.
As @bernardgreen says, there is a high chance the field coils will also have been damaged. Maybe not burnt out, but certainly they would have over heated and possibly damaged the insulation between the turns.

Are you sure they used 110v to supply a 230v unit? Or was it the other way round, 230 into a 110 unit?
Using 110v into a 230v unit will actually lower the amps, not raise them, whereas using 230v into a 110v unit will more than double the amps, thereby causingit to burn out. The incorrect voltage will also affect other things such as the power rating and probably speed etc.
I would go for a whole new unit and charge the cost to the person who damaged it. It raises the question as to how they used the wrong voltage if it had the correct plug fitted.

Hi. I meant to say. They used a 110v machine into 230v. The plug was fine. A dickhead just managed to doggy wire into a 230v. Very expensive grinder. Was hoping to fix it

 

[Harry Bloomfield]

Might it be worth enquiring of a small motor rewind company, for a price?