Grit size

Hello - I am soon going to have to replace the belt and disc on my FOX linisher which is still fitted with the original 80 grit belt and disk. Can some one tell me which way the scale goes for grit size on this stuff. For instance - is 80 grit coarser or finer than 120 grit? ----- Thanks ---- Rik

I think the higher the number the finer the grit, something to do with the number of holes per square inch that the grit is sorted through.

Roy.

Grit size is the number of wires per inch in a wire mesh used to sort the grits. So the higher the number the finer the grit. For belts 40-150 is commonly available. In Wet & Dry 100-1500 is common.

regards,

Billy

I recently bought a used linisher without any belts that I would like to use for general model engineering type activities i.e. ferrous, brass and aluminium.

A local supplier stocks a wide range of suitably sized 1"x 42" belts Sharpening/Sanding Belts of various of types and grits. But not having used a linisher before I am at a loss as to what belts to get. So any recommendations would be appreciated.

Thanks,

Clive

My linisher came fitted with a belt and disk of 80 grit. I have found this grit to be what I would describe as multi purpose and would therefore recommend this to you.

Rik

I have a M/Mart 6" linisher, came supplied with 80 grit belt,I bought some more belts... spare 80 grit & a couple of 120 grit for a finer finish... so the higher the grit # the finer the grit size & smoother finish. I am looking for belts with an even higher grit # .. 400 - 600 grit.. anyone have any info' as to retailer/supplier?

George

p.s. Clive's link is for US suplier (thanks Clive) I am looking for UK supplier...?

George

Clive

It's hard to spec a particular grit because it all depends on what you want to do. 80 is a good rough grit for fast surface removal on most soft materials, if you change to 120/150 then you get a finer finish but much slower cutting and a tendancy to clog when pushed too hard. Beyond 150/200 belts are harder to find. 400-600 might be very difficult to find.

There is an interesting point that a belt driven quickly produces a much finer scratch pattern than if you were rubbing down by hand. For a small linisher the belt might be around 1000mm long and will go past the job many times per second so the job is abraded by very many grits along the whole belt so there is an averaging process at work to produce a smoother/ many more scratches per mm width that if you were handworking the job. So large grits can remove a lot of material quickly and give a good finish.

Billy

Thanks to all for the advice, and to Billy for the great explanation.

George, Although the link I gave is to a Canadian supplier - Lee Valley tools, I believe that they do ship to the UK, although it should be possible (and far more cost effective) for you to obtain the belts locally. Have you tried eBay?

Clive

Edited to add: After typing the above, as an experiment, I entered sanding belts into the search box at ebay.co.uk and was completely overwhelmed by the huge number of results, there were literally thousands.

Edited By clivel on 28/07/2013 02:49:21

If you cant find the size or grit size you want you can always make your own:

**LINK**

Russell.