Thread: linisher sander restoration

Haydn
re shaft. you would have to get one machined up. A good back shed bloke could do it or find a local engineering shop and get a quote. Take the old one in as a sample and you would have to tell them what the missing bit is like.That might be a bit of a problem if you can't supply sizes. If you can get some pics of a similar machine thats complete, or even better, take some measurements of one, it would make it a lot easier for the turner to make the new shaft. Also cheaper.
Same deal for the belt drum. depending on the dia it should be fairly easy to turn one out of some billet. That would probably be the cheapest way as against getting one cast and then machined.(I'm assuming its alloy?) You would have to find somewhere that would sell you a short lump of billet though. Again, your eng shop should be able to help there, either in having some on the rack or knowing a supplier that will sell cut lengths.

Best of luck with it. post some pics if you can please

regards
bollie7

Thanks for your advice Bollie- I guess there's no easy way out with this one. I took the sander into a local Engineer this morning and he wants to charge me $800 to sort it out- I'd rather buy a lathe with that and have a go myself!

Haydn
I have no idea what hourly rate a machine shop would charge these days but there would be a fair bit of work in making your shaft. I'm talking total time here, not just machine time.
If you are not in a hurry to get your sander finished, your idea of putting the money towards a lathe could be a good one. What size is the shaft. (aprox)

bollie7

HaydnG,
The $800.00 does sound expensive.
Can you take some pictures of the Linisher/Sander and post them so we can see the construction so we can offer some advice.

Regards,
Keith.

I"ll be different and disagree with everyone so far.
$800 does not sound a lot when you consider what labour costs.

Its hard to make an estimate on something sight unseen, but what are we talking about?

A fabrication of the drum in aluminium.
To machine a shaft and fit bearings.

Some pictures will help a lot to give a better estimate.

Grahame

The drum section is a 'Contact Wheel' in polisher terms and you should be able to buy them over the counter at any industrial abrasives outlet. The normally are available in rubber tyred on metal, metal, and fabric. Fabric mount to a polishing taper on the spindle, the others normally screw onto or are keyed onto the shaft.

I would look for a wheel thats suitable first, and then look at getting a shaft to suit.
You would probably get a well used (but undersized) fabric contact wheel for near nothing from a polishing shop, but would need a taper to mount it. Might also be able to get a taper off a discarded machine, and thread the shaft to match

Haydn,
I understand that you may not well be a mechanical type but it would help greatly if you gave some dimensions of at least what you have and perhaps what you would hope to have.
Then the rest of the bods here will be able to chip in and will be able to help you much better than we are able to at the moment.
We may be able to cobble together something from what we find here,but can't help you much if we don't know belt widths,drum diameters and shaft diameters and widths.Motor Kw or Hp will help too!
For a polishing taper ,they are readily available as screw ons to the shaft threads on 8" bench grinders.Your shaft could be made as a step down diameter with the thread cut into it.Places like Bunnings sell these tapers along with the other mops and stuff .The name Josco comes to mind.

Again, its all about knowing what you have now and how it be added to or modified.

If you have what I think you have, you could not buy it for $800, for example,the Jet equivalent in 6"belt runs about $3000 or so,from memory.When I taught ,we had one of these units in or Man Arts.

Check this link out for some possible spares. It took seconds to type into Google and get a result.

http://www.garrickherbert.com.au/catalogue/30.pdf
and

http://www.australianabrasives.com/b...tactwheels.htm

cheers
Grahame

Hi,
Re the sander these should start appearing on the market for sfa as they no longer meet OH&S regs in schools etc.
This has been modded to try and meet this requirement.
Keep your eyes open you'll probably find one easier than sourcing bits.
On the last Grays online auction the was a Wadkin that probably didn't make what you've been quoted to make these bits!
H