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Faulty motor ultrasonic cleaner rotisserie

74.65.78.43
Posted on March 3, 2025 at 07:49:58
fstein
Audiophile

Posts: 3078
Location: fstein
Joined: May 18, 2006



I have been using a homemade ultrasonic record cleaner for several years. The parts can be bought from aliexpress or amazon for a few hundred bucks. I have been satisfied, again after several years of hard use...
Recently the motor in the rotisserie failed and I have now returned my third replacement unit to amazon. These arrive dead on arrival. I have swapped out the wall-wart with no improvement. I am beside myself and don't know what to do.

 

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I would double check the function with a battery. , posted on March 3, 2025 at 19:10:49
beach cruiser
Audiophile

Posts: 7409
Location: so cal
Joined: September 24, 2003
 three failed DC motors is a very exceptional occurrence. the manufacturing of these simple motors is very well known.

I would suspect the power source, and perhaps use a battery to double check a faulty motor. . if these motors really are consistently defective it might be time to switch horses.

I noticed Walmart often is out of stock on the very cheap machines they sell, and I wouldn't recommend trading with them , but they do include a warranty . It might be possible to use them as a lower price reference, when they have stock.

the market has changed , you might find something you like without having to build it yourself. knowing what is needed gives you the advantage of being a very informed consumer.

good luck. I am stoked to have finally taken record cleaning more seriously and ditched my old ways for an ultrasonic device.

of course, if building stuff is your deal, rewind the armature , it probably got hot and shorted out. but check the brushes first, of course.

 

RE: I would double check the function with a battery. , posted on March 4, 2025 at 07:25:02
fstein
Audiophile

Posts: 3078
Location: fstein
Joined: May 18, 2006
 In the first two failures it was a defective switch
I checked power by switching out the wall-warts several times.
The second and third ones were thru amazon, and they did replace or refund, but I'm not sure how I can keep flogging that horse.

 

Most of the alternatives I saw online were at Aliexpress. However, , posted on March 4, 2025 at 12:18:43
alaskahiatt
Audiophile

Posts: 7738
Joined: December 9, 2000
Contributor
  Since: November 1, 2005
 many of them looked similar to your unit. My Vinyl Stack is still doing fine after 6 years, but I couldn't find any on eBay.

Too bad this small company in Taipei never mass marketed this ultrasonic cleaner. After ultrasonic cleaning was done, it automatically raised the record, then vacuumed both sides.






 

I have read that sucking blows, and repeat that here ., posted on March 4, 2025 at 16:19:37
beach cruiser
Audiophile

Posts: 7409
Location: so cal
Joined: September 24, 2003
 you might already be aware of the intrinsic design problems with vacuum drying a record, but I will repeat it for those new to the vinyl asylum collective mind, since I learned it here.

vacuum works by the speed of the air movement. the design problem is to not accelerate the carrier fluid so quickly that it separates from the other heavier molecules that can't accelerate into the air steam as quickly , and are then left behind.

I would think a satisfied customer would instinctively think more vacuum is better, so a machine with only a very rapid air movement as a primary design goal would have many happy customers.

But that might contribute to the review stories one reads about less surface noise after a vacuum cleaned record is cleaned by an ultra sonic machine utilizing evaporative drying by a fan inside the unit.

 

I'll take the vacuum method. nt, posted on March 4, 2025 at 21:38:25
alaskahiatt
Audiophile

Posts: 7738
Joined: December 9, 2000
Contributor
  Since: November 1, 2005

 

Rinse with clean water, THEN vacuum, posted on March 5, 2025 at 16:14:20
Lew
Audiophile

Posts: 11011
Location: Bethesda, Maryland
Joined: December 11, 2000
 I noticed a difference in favor of a water rinse with my VPI HW17. That way, even if your argument against a strong vacuum dry is valid, rinsing with water already removes the residue you don't want to leave behind.

 

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