Ian Parkin | 28/07/2023 11:31:37 |
![]() 1174 forum posts 303 photos |
I have a need for a motor like this one its dc 50v it needs to fit in a smallish space hence its build (like a pancake) |
Ady1 | 28/07/2023 11:34:56 |
![]() 6137 forum posts 893 photos | Fan motor? Apparently small computer fans are brushless for reliability |
Ian Parkin | 28/07/2023 12:00:09 |
![]() 1174 forum posts 303 photos | Sorry for got to say its about 7 inches diameter and the alloy bit is about 3.5 inches long its a fairly powerful motor but i have no specs at all its fused by a 15 amp so I’m guessing it draws about 8-10 in use so 500 watts or so |
Bazyle | 28/07/2023 12:44:55 |
![]() 6956 forum posts 229 photos | 3 phase so probably designed for soft start. Variable speed fan application perhaps. |
Ian P | 28/07/2023 12:48:05 |
![]() 2747 forum posts 123 photos | Posted by Bazyle on 28/07/2023 12:44:55:
3 phase so probably designed for soft start. Variable speed fan application perhaps. 3 Phase, where did that come from? Looks like a high torque DC motor, possibly a stacked printed armature as it has face commutator? Ian P |
Ian Parkin | 28/07/2023 12:55:15 |
![]() 1174 forum posts 303 photos | Ian p have you seen one of these before? What would it be called?
Ian p |
Ian P | 28/07/2023 13:08:48 |
![]() 2747 forum posts 123 photos | Ian Put 'pancake motor' into Google images and see if you can identify yours
Ian P |
Hairy Pete | 28/07/2023 13:20:34 |
17 forum posts 3 photos | I would call it a pancake motor. Like this: https://www.printedmotorworks.com/brushed-pancake-motors/ Or closer still, like this: https://www.electronic-circuits-diagrams.com/store/LONGFORD-KOLLMORGEN-12CD-003-PANCAKE-DISC-SERVO-MOTOR-NNB-_155234707000.html "12CD-003" seems to be thee part number. |
peak4 | 28/07/2023 13:24:45 |
![]() 2207 forum posts 210 photos | I've had a brief look, but can't find anything immediately similar.
Edited By peak4 on 28/07/2023 13:28:15 |
Bazyle | 28/07/2023 13:36:37 |
![]() 6956 forum posts 229 photos | 3-phase. My mistake. I saw 3 brushes but now I look again there are 4. |
Ian Parkin | 28/07/2023 13:44:01 |
![]() 1174 forum posts 303 photos | Hairy pete it is off a longford |
Ian Parkin | 28/07/2023 13:47:42 |
![]() 1174 forum posts 303 photos | That’s the type but surely there must be a cheaper replacement
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Ian Parkin | 28/07/2023 13:52:45 |
![]() 1174 forum posts 303 photos | From the site hairy Pete linked to this is what i need
Unique Features of Brushed Pancake MotorsBrushed pancake motors, or printed motors and Scheibenläufermotoren as they are known in Germany, have a number of unique features that make them stand out from other electric motors:
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Ian Parkin | 28/07/2023 16:04:21 |
![]() 1174 forum posts 303 photos | from the machine maker its £2500 |
Robert Atkinson 2 | 28/07/2023 18:17:56 |
![]() 1891 forum posts 37 photos | What's wrong with it?
|
Ian Parkin | 28/07/2023 18:40:10 |
![]() 1174 forum posts 303 photos | Well it was blowing the fuse (15 amp) resistance between the leads was only 1 ohm on removing the brushes a strong smell of burnt windings.. i may strip it down next week just for a look but I don’t think these types can be rewound/repaired economically in this machine it has to start for a preset time (sheets delivered) usually about 1 second then stop for perhaps 2 seconds then restart and do that for 12 hours a day…perhaps a better way would have been a induction motor running continuously via a clutch and brake Edited By Ian Parkin on 28/07/2023 18:44:39 |
peak4 | 28/07/2023 19:08:17 |
![]() 2207 forum posts 210 photos | I'm sure you've looked on the web, but did you spot these folk Good Luck |
Ian Parkin | 28/07/2023 19:18:01 |
![]() 1174 forum posts 303 photos | Bill the customer needs it running asap so its up to them they have 12 of these motors so it may be well to see how much a rebuild is
ian |
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