No suggestion on a repair but a couple of questions that may help prevent
Are you running them in the correct direction?
Are they less than 1 year old? Old and unused belts can fail quickly.
Hey Leon, Others,
I'm new to using belt sanders and I have several old, but never used
belts (for a 6 x 48 machine ). Do you think I will have seam
separations in these older pieces earlier than a brand new belt? I'm
using the machine infrequently now but in a few weeks I'll be ready to
do a lot of production sanding. I'm just curious about what might
happen, not that anything has happened yet.
If they're significantly over a year or so old, yes, I would expect
early failures. How soon will depend on a myriad of factors, not all
As for what will happen, in almost all cases the glue joint separates
and the belt just runs off the end. Wakes one up, may make a mess if it
happens to shred and jam itself into the gap around one or the other
rollers but unlikely to do any real damage.
I had one of from Klingspor's "bargain box" which was quite old
(probably closer to 7-8 years) and they would all fail within a very few
minutes of getting warm.
I talked to Klingspor about whether any way to rejuvenate or repair --
very nice, but answer was basically "no, at least any way we're going to
tell you :)" and their adhesive supplier only guarantees it to them for
I do know that those were fine for 3-4 years; it was somewhere after
that when the actual breakdown occurred such that the belts were
essentially worthless for anything other than hand sanding.
Leon, yes these belts are several yrs old. I was wondering if the tape used
is available for retail or if anyone knew of a glue that would work. I had a
business several yrs ago and have several belts of different sizes.
In High School shop we used to make our own from huge rolls donated by
a plywood company. We used a grinding wheel on a DeWalt RAS to grind
off the grit on the overlap area. Then we applied white glue and
ironed it with a hot clothes iron. Never remember any separating.
I have grinding and sanding belts that have been around here for many
many years and I don't ever remember on breaking at the joint. On my 1"
belt grinder that I use all the time for sharpening tools and chamfering
edges of metal cutoff, I NEVER throw a belt away. I just keep
relegating it to the worn-to-smoother nail. U bet I've got belts for it
that are 15 years old or more!
On my 2 1/2" by 48" belt grinder it's the same thing; no failures.
But on that one, I wear them out a lot more quickly and do throw them
away. But, I had a chance to buy 100 belts of the grit I use fairly
often and I am still unwrapping and using them and its 8 or 9 years
since I bought them.
Could it be the mfr? I know of one company at least that claims to
have better adhesives than the rest.
Having seen threads like this before, I see that the answer is always
the same. NO, not really.
Am I missing something here?
No, I have belts well over 10 years old and they work fine. I can only
remember one belt ever separating and I figure it was a defective belt
to begin with. I imagine there are numerous qualities of belts out
there, some may not hold up over time. Busy shops probably don't have
them around long enough to make a difference.
Just a note about your site. Whenever you click on a link (that works fine)
and then on the homepage icon, you get a 404 error. Didn't test all links
but the one above and a couple of more I tried didn't work. Seems it can't
find your index.html page.
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