Hi all!
I have an old weak permanent magnet chuck and I have been considering to convert it to electromagnetic operation.
I have seen this really cheap coils that promise 180kgs of pulling force at 12v:
Electromagnetic electric magnetic door lock 6KG/18KG/28KG electronic lock 12V Waterproof/Signal feedback/Time Delay/embedded-in Access Control Kits from Security & Protection on Aliexpress.com | Alibaba Group
I suspect I am missing something for sure as the typical electromagnetic chucks draw around 1Amp at 100v (this gives 100 Watts) while this cheap ones draws only 0.4A @ 12V (4.8 Watts).
That´s a huge difference! What am I missing?
Thank you fellows!!
I have an old weak permanent magnet chuck and I have been considering to convert it to electromagnetic operation.
I have seen this really cheap coils that promise 180kgs of pulling force at 12v:
Electromagnetic electric magnetic door lock 6KG/18KG/28KG electronic lock 12V Waterproof/Signal feedback/Time Delay/embedded-in Access Control Kits from Security & Protection on Aliexpress.com | Alibaba Group
I suspect I am missing something for sure as the typical electromagnetic chucks draw around 1Amp at 100v (this gives 100 Watts) while this cheap ones draws only 0.4A @ 12V (4.8 Watts).
That´s a huge difference! What am I missing?
Thank you fellows!!