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Induction Unimat motor?

Tinkerer22 All Messages By This Member #63146 Some older Unimats feature the type of motor pictured below. Is this an induction motor? It has a housing on the side that indicates presence of a capacitor, and no sign of brush access holes. It is also 125W, an improvement over typical 90W. Induction motors hold speed and torque under load much better than brushed universal ones. Does anyone have any information or experience with it? Thank you.
Alan Ehrlich All Messages By This Member #63150 开云体育 Very interesting: “MADE IN HOLLAND”. ? Did Emco have a subsidiary in the Netherlands? Or a ‘big’ Benelux importer who found a customs/import-duty advantage by adding the motors locally? There are historical examples of the latter elsewhere in other countries/industries (e.g. Swiss watch movements “Cased and timed” locally in the UK, North America and Canada... including significant numbers of Rolex, JLC, Longines, Cartier, etc. wristwatches). ? Some ‘precedent’ also can be seen in the example of Edelstahl’s role for North America. ? Could you please also show us a photo of the label that’s on the Unimat itself! ? Kind regards, Alan Geneva, Switzerland ? ? toggle quoted message Show quoted text From: [email protected] <[email protected]> On Behalf Of Tinkerer22 via groups.io Sent: Wednesday, June 12, 2024 2:15 AM To: [email protected] Subject: [Unimat] Induction Unimat motor? ? Some older Unimats feature the type of motor pictured below. Is this an induction motor? It has a housing on the side that indicates presence of a capacitor, and no sign of brush access holes. It is also 125W, an improvement over typical 90W. Induction motors hold speed and torque under load much better than brushed universal ones. Does anyone have any information or experience with it? Thank you.
Alan Ehrlich All Messages By This Member #63151 开云体育 P.S. Sorry, wanted to say: “Cased and timed” locally in the UK, North America and Australia! ? toggle quoted message Show quoted text From: [email protected] <[email protected]> On Behalf Of Alan Ehrlich Sent: Wednesday, June 12, 2024 6:42 AM To: [email protected]; vpol1@... Subject: Re: [Unimat] Induction Unimat motor? ? Very interesting: “MADE IN HOLLAND”. ? Did Emco have a subsidiary in the Netherlands? Or a ‘big’ Benelux importer who found a customs/import-duty advantage by adding the motors locally? There are historical examples of the latter elsewhere in other countries/industries (e.g. Swiss watch movements “Cased and timed” locally in the UK, North America and Canada... including significant numbers of Rolex, JLC, Longines, Cartier, etc. wristwatches). ? Some ‘precedent’ also can be seen in the example of Edelstahl’s role for North America. ? Could you please also show us a photo of the label that’s on the Unimat itself! ? Kind regards, Alan Geneva, Switzerland ? ? From: [email protected] <[email protected]> On Behalf Of Tinkerer22 via groups.io Sent: Wednesday, June 12, 2024 2:15 AM To: [email protected] Subject: [Unimat] Induction Unimat motor? ? Some older Unimats feature the type of motor pictured below. Is this an induction motor? It has a housing on the side that indicates presence of a capacitor, and no sign of brush access holes. It is also 125W, an improvement over typical 90W. Induction motors hold speed and torque under load much better than brushed universal ones. Does anyone have any information or experience with it? Thank you.
Tinkerer22 All Messages By This Member #63152 It's on e-bay with more pictures? I've seen other Unimat motors made in Holland.
Keith S. Angus All Messages By This Member #63153 That machine looks very little used, or else very well cared for. Yes, it's an induction motor. 115 V 60 Hz, 2800 rpm. If it has one capacitor it's capacitor start, if two, then it's also capacitor run, which improves the performance. I notice it has the proper Vee belts as I had on my first Unimat, and I have seen a few times since - as recently as a year ago - so they can last. Some folks have denied that such things ever existed, but I didn't imagine them, honest!
Alan Ehrlich All Messages By This Member #63154 开云体育 Hadn’t immediately noted that the motor in your post was 110 volts. The eBay photo also shows it has a U.S. electrical plug. ? Could it be that the same tariff regulations which caused watch manufacturers to complete their products locally in North America also caused Edelstahl (or whoever imported Unimats into the USA back then) to ‘finish’ them locally too? ? Also, regarding the history, pros and cons regarding induction motors, came accross an interesting presentation at ? Kind regards, Alan ? ? toggle quoted message Show quoted text From: Tinkerer22 via groups.io <vpol1@...> Sent: Wednesday, June 12, 2024 7:03 AM To: Alan Ehrlich <alan.ehrlich@...>; [email protected] Subject: Re: [Unimat] Induction Unimat motor? ? It's on e-bay with more pictures? I've seen other Unimat motors made in Holland.
MtnMikes.us All Messages By This Member #63195 i happened on one of these, gov surplus. It had Nevada Bureau of Mines stickers and under that is carved USBM Spec. It is fan cooled, 3450 rpm capacitor motor. I am wondering if the pulleys are different to achieve the same spindle speeds or if these turn slower (just posted about o-ring sizes and mine may have been different). Also hoping this is a 100% duty cycle motor. I saw the? capacitor motor is listed as standard on the earliest DB200, below link. Mine looks like a later model due to the centering pin for the headstock (rather than the slot and key). Perhaps there was a special run for the US government?
Tinkerer22 All Messages By This Member #64072 Update. I since aquired a unimat with induction motor and used it a bit. It is definitely an improvement over more common brushed one. Does not bog down as easily and its the performance is almost as good as my 150W DC. It's got a cooling fan and is probably constant duty cycle. Still, gets quite warm.

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