polaszko
having dreams about rocks
Member since August 2020
Posts: 58
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Post by polaszko on Dec 29, 2021 15:07:42 GMT -5
Yeah... during last summer I fried my tumbler's motor. I call Lortone dealer in my country, but spare motor is horrendously expansive. Well maybe not for residents of Canada, or US, but it would cost me more than my used tumbler! I can buy it, but Lortone engines are manufactured in china and there are a bunch of cheap shaded-pole motors on aliexpress made for microvawes and fridges. Some of them even have familiar power to Lortone engine, and sell for one third or even one sixth of Lortone price. So does anybody know how these cheap shaded-pole motors from Aliexpress work in tumblers? They can withstand non-stop work under load? Anybody tested them?
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Post by hummingbirdstones on Dec 29, 2021 22:14:50 GMT -5
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Post by knave on Dec 29, 2021 22:42:20 GMT -5
It’s true that many of the low cost open style shaded pole motors have similar mounting and frame size but the watts of power varies as well as shaft length and diameter. If you can confirm similar specs why not give it a shot? FYI I carry a universal kit on my service van that I’m sure could work in a 3 lb tumbler.
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AzRockGeek
has rocks in the head
Member since September 2016
Posts: 682
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Post by AzRockGeek on Dec 30, 2021 8:50:49 GMT -5
If you cannot match up a motor as knave suggested, you may need to get creative like this person did on this home built tumbler.
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polaszko
having dreams about rocks
Member since August 2020
Posts: 58
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Post by polaszko on Jan 4, 2022 2:17:58 GMT -5
Ok thanks for advice, I think I'll buy one of these chinese motors, when I get some opinion about it I'll write it here.
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Post by hummingbirdstones on Jan 4, 2022 9:07:38 GMT -5
Ok thanks for advice, I think I'll buy one of these chinese motors, when I get some opinion about it I'll write it here. Good luck!
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Post by oregon on Jan 4, 2022 15:37:13 GMT -5
Just a word of caution, The most prevalent use of these 3" motors seems to be for fan applications. This provides critical cooling to most of these motors as well. I acquired a bucket of 3" motors removed from service, and just spent a few days testing them on a QT6 to see if they would work. Most all of them ran until they got too hot, and a couple cut out with thermal overloads. The lortone motors tend to run hot as it is, but these were generally hotter. I believe the original motors have an internal fan, but I'm not sure. I have a very old Scott Murray NOS motor that does. I do have a couple 110/220V capacitor run versions that seem to run very cool wo a fan though, maybe that'll help you out, imagine you'll need a 220V version. I think you're better off with a PSC motor than a shaded pole version for heat generation as well... I'm sure some HVAC expert can correct all my mistakes.
I've also noticed that there are far more motors with 5/16" shafts rather than the 1/4" that lortone uses - The pulley's have plenty of material to drill this out to fit the larger shaft. 2c. Good luck.
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