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Bench mounted Disc sander - HELP!!!!

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Forum topic by madburg posted 07-21-2020 01:40 AM 334 views 0 times favorited 8 replies Add to Favorites Watch
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madburg

288 posts in 1731 days


07-21-2020 01:40 AM

Topic tags/keywords: bench sander capacitance question sander

Hi all,
I’m in Western Australia and have one of these bench sanders, which I guess is from China and probably available world wide.

Mine is actually a VidaXL Disc Sander 550W, but is identical apart from being painted blue!!

I left it running for too long the other day and the start capacitor melted!!! It’s an easy job to get a new one and replace it, but unfortunately when it melted the capacitors specification disappeared. The capacitor is behind the black plastic plate that the start/stop switch is fixed to. The plate is easily removed by taking out the four screws. Does any fellow lumberjock have a similar sander, and if so can you have a look and tell me what the capacitors value is. It’s usually printed on the case. Alternately I’m told some modern digital multimeter have a capacitance measuring facility. I’m no electrician so don’t understand these hi-tech things!!!
There are loads of different capacitors and I guess if I put the wrong one in then I’ll burn out the motor.
I have contacted a couple of suppliers but have had no reply.
Hope someone can help.
Thanks in anticipation.

-- Madburg WA


8 replies so far

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SMP

2692 posts in 794 days


#1 posted 07-21-2020 02:58 AM

Can you post a pic of the motor or at least specs? Voltage, amps etc.

View MrUnix's profile

MrUnix

8246 posts in 3087 days


#2 posted 07-21-2020 03:13 AM

Guessing it’s a 550 Watt motor running on 220V (50hz).

Generic value would be somewhere around 100-120mfd.
Be sure to get one rated for or higher than 220V.

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

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madburg

288 posts in 1731 days


#3 posted 07-21-2020 04:27 AM

Thanks Brad – most helpful.
A picture for SMP

and a spec for it, well as much as I can find, is:
vidaXL Disc Sander 550W
• Mains supply: 230 V, 50 Hz
• Power: 550 W
• Speed: 1450 /min
• Sanding disc diameter: 10 inch (254 mm)
• IP rating: IP20
• EAN: 8718475964544
• SKU: 142009
Thanks all.
Martin

-- Madburg WA

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SMP

2692 posts in 794 days


#4 posted 07-21-2020 05:03 AM

Do you still have the capacitor and is it still intact enough to measure the diameter and length? I would probably look at something like this
https://www.supplyhouse.com/Packard-PTMJ108-220-250V-Start-Capacitor-108-130-MFD
And see if the size is right, if not look for one with similar specs. (Not recommending that site, just came up in google)

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madburg

288 posts in 1731 days


#5 posted 07-21-2020 05:23 AM

Thanks SMP.

Size is around 2.5” x 1.25” so your link looks about right, and it has similar 2 terminals. Here’s a couple of pictures of the melted capacitor.

But I’m now confused as Brad suggests a 100-120 mfd capacitor, and you a 108 -130 mfd, where as an Aussie supplier of a similar sander has said a 12μf. Are they the same value, just written in a different way?

Thank again Martin

-- Madburg WA

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MrUnix

8246 posts in 3087 days


#6 posted 07-21-2020 06:14 AM

But I m now confused as Brad suggests a 100-120 mfd capacitor, and you a 108 -130 mfd, where as an Aussie supplier of a similar sander has said a 12μf. Are they the same value, just written in a different way?
- madburg

Different values. 12uf would be more applicable as a run capacitor, which it sounds like you have – not a start capacitor.

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

View 4wood's profile

4wood

62 posts in 842 days


#7 posted 07-21-2020 11:36 AM

I googled CBB60 several capacitors came up. Looking at the pictures the information you need may be under the clamp on your capacitor and not damaged. I would try to carefully remove the clamp.

https://www.amazon.com/cbb60-capacitor/s?k=cbb60+capacitor

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madburg

288 posts in 1731 days


#8 posted 07-21-2020 11:52 AM

Thanks 4wood and every one who’s helped. There’s nothing under the clamp as its an integral part of the casing. I’m going to go with a run capacitor of 12mfd. Thanks all.

-- Madburg WA

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