air hose crimping

fixerupper

Well-known Member
Here's a way to crimp a band on a new air hose end I just discovered this morning. I'm sure some of you guys are way ahead of me on this but it's a first for me and the materials are readily available if a person has a hydraulic hose crimper. I use 3/8 heavier duty air hose in the shops and occasionally a hose will need a new end. A regular screw type hose clamp works to clamp the hose to the new barb when the hose end is replaced but is bulky. After dome fiddling around and one failure I discovered a 3/4" PEX crimp band in a 3/8" hydraulic hose crimping die works like a champ. Just set up the crimp band in between the dies, poke the hose up through it to the right height, and crimp. It makes a corrugated looking crimp but it works. Just an idea.
 
I've used PEX crimp bands on assorted air and sprayer hoses, but I've crimped them with a regular PEX crimp tool. Pretty handy and functional.
 
For this application a 1/2 pex ring was too small and a 3/4 pex ring was too big for the pex crimp tool to crimp it down tight. If the Hose size is right the pex crimp tool is definitely the better way to go. The hyd hose die crimped it down smaller than the tool was able to.
 
I just crimp a hydraulic hose end on the
air hose works great and 1/4 npt are
only like 4 bucks
 
Probably could find cheapo ones from somewhere online, I know a 3/8 hose by 1/4 npt aeroquip like we have at work runs about 4 bucks
 
For those of us without a hydraulic hose
machine, this style can be crimed with a
pair of pliers Makes a good crimp without
too much sticking out. Not as nice as a
hydraulic crimp, but better than a screw
clamp.
a175520.jpg
 
While I agree using crimp rings is probably better than worm-gear hose clamps (and I've used them myself) I am going to move up to an air hose crimper with the correct ferrules and be able to do it correctly.

If someone would happen to be injured, I doubt using the incorrect crimp ring we are discussing here would be deemed appropriate, so for the ones of us doing any amount of these repairs at all, having the correct tool seems reasonable.

How bout it, guys?
 
Most folks don't have a hydraulic hose crimper.

Googling "air hose crimper" returns plenty of reasonably-priced tools.

Seventeen bucks will get you this <a href="https://www.amazon.com/Interstate-Pneumatics-H6-V-Grip-Crimper/dp/B0093JOLCW/ref=pd_lpo_vtph_469_lp_t_3?_encoding=UTF8&psc=1&refRID=S8NXTQ280394EHJVAQ27">Vise-Grip style tool</a>.

Or for $118 you can buy a nice <a href="https://www.amazon.com/Milton-1626-Hose-Ferrule-Crimping/dp/B000I0QC2C">Milton crimper</a>.

The ferrules run about 20 bucks for a box of fifty.
 
If you find yourself needing new fittings, consider the reusable ones. I'm still using two-piece reusable brass airhose ends that I bought 40-some years ago, and there's no need to buy anything other than new hose when I reuse them. The reusable fittings did cost more than crimp-on fittings, but they've been well worth the added cost.
 
If you find yourself needed new airhose fittings, consider the reusable two-piece ones. I'm still using brass Minton reusable fittings that I bought 40-plus years ago, and the only part to buy when it's time for a new hose is the new hose.
 
Well, how'd that happen? I guess the first posting didn't really disappear into the ether, but got stuck in the wires and ended up being pushed through by the second one?
 
i have been using 1/2 in pex crimps for years but you have to have the pex crimp tool beets the heck out of hose clamps
 
Here is my air hose fix. A 1/2 pex crimp ring on a 3/8 hose. Makes for a smooth compact connection. I like to use light weight hoses. Easier to maneuver around when using air wrenches and such.
a175544.jpg
 
Looks good. I have all the styles of pex crimpers and that looks like a good non snagging crimp.
Ive got one now that that's starting to crack at the hose and will give it a try.
 
I always liked the clamps Jeff Nwoh suggested but for some reason they are difficult to find. Despite the idiots at OSHA I just use automotive hose clamps. I had one leak a little once and had to tighten it but other than that they work fine.
 
(quoted from post at 19:43:41 10/17/17) Here is my air hose fix. A 1/2 pex crimp ring on a 3/8 hose. Makes for a smooth compact connection. I like to use light weight hoses. Easier to maneuver around when using air wrenches and such.
a175544.jpg

Mark that looks like a real professional crimp. This 3/8 hose of mine is too big OD to slip a 1/2” ring over it. Thanks everyone for showing your crimping ideas.
 
(quoted from post at 03:43:41 10/18/17) Here is my air hose fix. A 1/2 pex crimp ring on a 3/8 hose. Makes for a smooth compact connection. I like to use light weight hoses. Easier to maneuver around when using air wrenches and such.
a175544.jpg



That works, but doesn't have the 'factory' look of the OEM Milton ferrules....I got my whole set of crimper, ferrules, and hose barbs at the local welding supply. Probably Amazon today.....
 

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