Diy Pneumatic table saw clamps/Holddown

  • Advertise with us

« back to Power Tools, Hardware and Accessories forum

Forum topic by mark4345 posted 03-28-2013 05:30 AM 11379 views 0 times favorited 7 replies Add to Favorites Watch
View mark4345's profile


71 posts in 2386 days

03-28-2013 05:30 AM

Spent the day working on a better way to hold down my workpieces to the slider. Ive grown tired of constantly fiddling with the standard hold down toggle clamp. I ran across the pneumatic clamps felder sells but at $870 each i cannot justify that for a clamp.

I bought 2 spring return air cylinders, then went to lowes and raided the plumbing isle and heres what i came up with…


All in all really easy to do, aside from the air cylinders they are all parts from the hardware store.

7 replies so far

View Loren's profile (online now)


10244 posts in 3611 days

#1 posted 03-28-2013 06:51 AM

That’ll do. Good idea.

Bessey makes some manual clamps which adjust automatically
for variations in material thickness… range is 3/8” or something.

... of course pneumatics are more fun to fiddle with.

View Picklehead's profile


1041 posts in 1892 days

#2 posted 03-28-2013 10:46 AM


-- You've got to be smarter than the tree.

View Kaleb the Swede's profile

Kaleb the Swede

1821 posts in 1932 days

#3 posted 03-28-2013 11:36 AM

One valve, instant hold down with really strong results. I have messed with air rams (on a touch larger scale) on the commercial fishing vessel I worked on for a time. Really smart idea you have there.

-- Just trying to build something beautiful

View FirehouseWoodworking's profile


705 posts in 3236 days

#4 posted 03-28-2013 04:30 PM

Very cool idea, Mark. Well done! Where do you get the cylinders and roughly how much do they run?

-- Dave; Lansing, Kansas

View Loren's profile (online now)


10244 posts in 3611 days

#5 posted 03-28-2013 04:42 PM

You can buy all sorts of bargain cylinders on ebay. A lot of
it is new old stock and in small lots.

Not cylinder clamping, but check out the vacuum clamping
rig I made for ripping crazy tapers on my slider.

View mark4345's profile


71 posts in 2386 days

#6 posted 03-28-2013 05:30 PM

As loren said, there are lots of them available on ebay. The ones i used are 1 1/16” bore with a 3” stroke. On ebay they can be had for $15-30. Grainger also has a large selection though they are more expensive $25+

That is a pretty slick vacuum clamping rig you got there, that is something i have been thinking about i just haven’t had the need nor the project to use it on yet. I am currently working on building a cnc machine, once that is done (who knows when, i have a lot im working on now) i will be taking a closer look at vacuum clamp options.

View Ocelot's profile


1956 posts in 2601 days

#7 posted 04-24-2014 01:46 PM

I just did a search on pneumatic clamps and found your thread.

i was wondering if anybody did shop-made pneumatic vises or bench clamps. i gather that such things are widely used in industry.

How is your clamp / holddown working out for you after a year in service?


Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics