Mounting toroidal xformers

nezbleu · 18th May 2010, 01:26 AM

I purchased a couple of toroidal transformers recently for a project. They were a great price and I assume "surplus" as the don't look used. However, they came without any mounting hardware.

How do others mount toroids securely? Is it possible to purchase the usual dished metal washers and neoprene washers? I have searched at Digikey and Newark without success. I emailed Plitron who made the xformers, but they have not deigned to respond.

These transformers have no central potting, although they are well wrapped with heavy plastic. So far I am thinking I will use a couple of pieces of hardboard and some washers to spread the load, but I am concerned that th toroids will still be free to slide around laterally.

Thanks for any ideas.

lanchile · 18th May 2010, 01:50 AM

Try this. sales@alphacore.com

kavermei · 18th May 2010, 11:35 AM

Use a strip of aluminium and two rubber washers

or

Cable ties with self-adhesive cable tie bases...

nezbleu · 18th May 2010, 08:23 PM

Thanks for the pointers. The zip ties might be the way to go. Alpha-core have exactly what I need, and I don't mind buying their minimum quantity of 10 even though I only have 2 transformers to secure, but they want more than twice the value of the goods to ship them! *sigh* I love living in Canada, but it sure is a hassle when you try to shop on-line.

applevalleyjoe · 18th May 2010, 11:47 PM

You know, nezbleu, I checked the PLITRON web pages and I couldn't find anything about the washers to secure their toroids....but then again, I'm not surprised. My 1 dealing with them was disappointing at best. That was a good lead by lanchile though.

kavermei · 19th May 2010, 09:22 AM

The Belgian web shop "conrad" sells those nickel-plated dishes + large washers separate from the transformers, but I guess shipping to CA would be very expensive too

DIY is the way to go

lanchile · 19th May 2010, 01:07 PM

I got my transforme at www.toroid.com. They have all the kits for transformers. just call them. they are very nice people.

just check how big is your transformer and get the kit for it. good luck.

nezbleu · 21st May 2010, 07:47 PM

Quote:

Originally Posted by lanchile

I got my transforme at www.toroid.com. They have all the kits for transformers. just call them. they are very nice people.

just check how big is your transformer and get the kit for it. good luck.

I'm sure they are very nice people, but they won't sell the kits without the transformers. At least they had the decency to reply, which is more than 2 other suppliers did.

Zip ties it is!

Enzo · 22nd May 2010, 09:37 PM

Early on you mentioned clamping them down, but a concern they copuld still slide horizontally. So do what they do even with the huge cup washers - add a layer of rubber underneath. That won;t slide.

bobodioulasso · 22nd May 2010, 09:56 PM

What about filling the hole with resin and drill for a screw. Many xformers use that way.

18th May 2010, 01:26 AM	#1
nezbleu diyAudio Member Join Date: Dec 2009	Mounting toroidal xformers I purchased a couple of toroidal transformers recently for a project. They were a great price and I assume "surplus" as the don't look used. However, they came without any mounting hardware. How do others mount toroids securely? Is it possible to purchase the usual dished metal washers and neoprene washers? I have searched at Digikey and Newark without success. I emailed Plitron who made the xformers, but they have not deigned to respond. These transformers have no central potting, although they are well wrapped with heavy plastic. So far I am thinking I will use a couple of pieces of hardboard and some washers to spread the load, but I am concerned that th toroids will still be free to slide around laterally. Thanks for any ideas.

18th May 2010, 11:35 AM	#3
kavermei diyAudio Member Join Date: Jan 2005 Location: Lokeren, Belgium	Use a strip of aluminium and two rubber washers or Cable ties with self-adhesive cable tie bases... __________________ Never send a human to do a machine's job. --Agent Smith

18th May 2010, 08:23 PM	#4
nezbleu diyAudio Member Join Date: Dec 2009	Thanks! Thanks for the pointers. The zip ties might be the way to go. Alpha-core have exactly what I need, and I don't mind buying their minimum quantity of 10 even though I only have 2 transformers to secure, but they want more than twice the value of the goods to ship them! sigh I love living in Canada, but it sure is a hassle when you try to shop on-line.

19th May 2010, 09:22 AM	#6
kavermei diyAudio Member Join Date: Jan 2005 Location: Lokeren, Belgium	The Belgian web shop "conrad" sells those nickel-plated dishes + large washers separate from the transformers, but I guess shipping to CA would be very expensive too DIY is the way to go __________________ Never send a human to do a machine's job. --Agent Smith

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18th May 2010, 01:50 AM	#2
lanchile diyAudio Member Join Date: Sep 2008	Try this. sales@alphacore.com

18th May 2010, 11:47 PM	#5
applevalleyjoe diyAudio Member Join Date: Nov 2005 Location: Apple Valley, CA (Mohave Desert)	You know, nezbleu, I checked the PLITRON web pages and I couldn't find anything about the washers to secure their toroids....but then again, I'm not surprised. My 1 dealing with them was disappointing at best. That was a good lead by lanchile though.

19th May 2010, 01:07 PM	#7
lanchile diyAudio Member Join Date: Sep 2008	I got my transforme at www.toroid.com. They have all the kits for transformers. just call them. they are very nice people. just check how big is your transformer and get the kit for it. good luck.

22nd May 2010, 09:37 PM	#9
Enzo diyAudio Member Join Date: Sep 2004 Location: Lansing, Michigan	Early on you mentioned clamping them down, but a concern they copuld still slide horizontally. So do what they do even with the huge cup washers - add a layer of rubber underneath. That won;t slide.

22nd May 2010, 09:56 PM	#10
bobodioulasso diyAudio Member Join Date: May 2008	What about filling the hole with resin and drill for a screw. Many xformers use that way.

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