Post by: stlaser on April 04, 2020, 02:44:45 PM
5hp @ 18 cfm @ 100 psi $800
7.5hp @ 26 cfm @ 100 psi $1050
10hp @ 43 cfm @ 100 psi $1500
There will be a little truck freight on top of those prices in addition.
Post by: TexasRedNeck on April 04, 2020, 03:32:44 PM
www.mediablast.com/sandblasting-compressed-air-chart
I’d add the biggest to what you already have.
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Post by: stlaser on April 04, 2020, 03:58:45 PM
Post by: KensAuto on April 04, 2020, 04:32:02 PM
Post by: stlaser on April 04, 2020, 05:49:26 PM
Just rent a scroll compressor now and then. 125cfm can push one heck of a blaster.
Screw compressor? Yeah, not into renting equipment. The last screw compressors we had IR were crap too.
So by using that nice chart Charles provided and going with his recommendation of bigger is best. I’d have 61 cfm available at 100 psi. Guess I should call Eaton Monday and see what they can do. I believe last time I bought motor and compressor head from them. With above figures I was sourcing motor from amazon as I couldn’t find motors on their site. Maybe they can do a package deal....
Post by: stlaser on April 05, 2020, 08:04:26 PM
And the compressor head I’m strongly considering
https://eatoncompressor.com/product/10hp-air-compressor-pump-43-cfm/
Post by: Flyin6 on April 05, 2020, 08:26:48 PM
Found a supplier of rebuilt 10 hp single phase motors. Should be able to cut $300 off the price but with a 10 hp motor and the start load I’ll need a mag starter for sure so I reached out to a friend who might have a good used one in his stash.That's the one I am using. 4 cyl mag start, 220V 10 HP
And the compressor head I’m strongly considering
https://eatoncompressor.com/product/10hp-air-compressor-pump-43-cfm/
Keeps up with everything I have ever asked of it
Sounds cool too!
Post by: JR on May 09, 2020, 06:45:00 PM
My 5hp Century has kept up with my needs. In fact I am going to a kobalt (cheap) 3.7hp, 11cfm here at home now. I may add a second tank but the same setup was double the price for 2gal more.
Post by: stlaser on May 09, 2020, 07:32:46 PM
Had to buy some more hockey pucks in bulk from amazon for machine isolators, they came in Friday.
Spare 120 gal tank is in loft, need to purchase black pipe and plumb shop yet.
Will add pics shortly
Post by: JR on May 09, 2020, 07:37:32 PM
Post by: stlaser on May 09, 2020, 08:58:27 PM
Post by: KensAuto on May 09, 2020, 09:54:05 PM
Post by: stlaser on May 09, 2020, 10:05:30 PM
Pretty big blast cabinet so when I was looking at it for 2-300 hundred extra I could jump about 20cfm and decided to do so.
Business has been good this spring, really blessed considering. Truck build side has been really dropping off but parts sales are double and going towards triple last years numbers so far. Along with axle core assembly and components sales exploding as well.
Post by: JR on May 09, 2020, 10:37:28 PM
Post by: stlaser on May 10, 2020, 11:13:43 AM
Here is the 43cfm 10hp beast of a head
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Post by: KensAuto on May 10, 2020, 12:13:39 PM
... some kind of maintenance gauge on the side? Can't zoom in enough.
Post by: stlaser on May 10, 2020, 12:52:34 PM
Oil pressure guage
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Post by: dave945 on May 10, 2020, 01:42:58 PM
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Post by: stlaser on May 20, 2020, 04:43:14 PM
Well, with a fancy c10 tying up my lift waiting on a duragrip carrier from Tate I decided to start putting the tank together to hold the compressor and 10hp motor. Added pads to bottom along with some hockey pucks. Made a trip to hardware to buy incorrect size fitting for tank drain.
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Post by: Farmer Jon on May 20, 2020, 09:20:14 PM
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Post by: stlaser on May 20, 2020, 09:47:18 PM
Post by: JR on May 20, 2020, 10:09:29 PM
Post by: stlaser on May 20, 2020, 10:14:28 PM
Post by: KensAuto on May 20, 2020, 11:29:15 PM
Love to add another tank here and at the ridge. Been checking CL but people want stupid prices for tanks.I got free propane tanks out of the junk yard. They don't like to deal with them and they're pretty thick.
Post by: stlaser on May 21, 2020, 03:08:01 PM
Picked up correct fittings this morning, then mounted motor and added pulley. Cutting mount for compressor frame to bolt to now.
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Post by: TexasRedNeck on May 23, 2020, 07:28:29 AM
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Post by: JR on May 23, 2020, 02:16:59 PM
That motor looks about like someone stuffing a Cummins in a pinto
Real motors do, the 3.7 on my kolbart looks puny.
Post by: stlaser on May 23, 2020, 03:37:05 PM
Post by: Sammconn on May 23, 2020, 07:58:42 PM
That’s some serious air!
Post by: stlaser on May 27, 2020, 07:10:04 AM
Started lifting this 300# head into position on the mount I built and had to leave on a bit of a fummins goose chase which I’ll update later today on that thread.
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Post by: stlaser on May 27, 2020, 10:05:15 AM
(https://uploads.tapatalk-cdn.com/20200527/4f5b8aed707904236ee3557cc6f156b5.jpg)
I did use a level too btw
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Post by: Bigdave_185 on May 27, 2020, 10:34:27 AM
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Post by: Sammconn on May 27, 2020, 10:37:43 AM
One monster of a compressor here!
Post by: JR on May 27, 2020, 12:53:30 PM
Post by: stlaser on May 27, 2020, 03:06:57 PM
Naw, it will torque roll!
That was pretty good, it’s stable as stable as 500# can get mounted to the top of a 2’ diameter tank
Went and picked up seven 10’ lengths of 1” pipe and some various fittings. Doesn’t take much to spend a couple hundred at HD
Post by: JR on May 27, 2020, 03:28:26 PM
Post by: Flyin6 on May 27, 2020, 04:26:08 PM
The “Real Parts” sure dwarf the tank.It should get up to pressure after just two revolutions
One monster of a compressor here!
Post by: stlaser on May 27, 2020, 05:00:41 PM
The “Real Parts” sure dwarf the tank.It should get up to pressure after just two revolutions
One monster of a compressor here!
If it was only that 60 tank maybe, it’s pumping another 180 gallons worth of tank in the shop though
Post by: Sammconn on May 27, 2020, 05:40:15 PM
Post by: Bob Smith on May 27, 2020, 06:25:38 PM
Post by: TexasRedNeck on May 27, 2020, 06:47:28 PM
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Post by: stlaser on May 27, 2020, 07:07:38 PM
Can’t believe you didn’t just lift that compressor head up on to the tank yourself....wimp. ;-). Lol
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I agree Bob, Charles ten years ago I would have..... :wink: I used to load 14 bolt 10.5 axles into bed of truck by myself! Lol
Post by: TexasRedNeck on May 27, 2020, 08:45:40 PM
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Post by: stlaser on May 27, 2020, 08:48:52 PM
Yeah, youngster. You get older and you’ll do it just to prove you can....
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I didn’t say I couldn’t do it, I just have learned not to. Also why I’m adding another job crane to shop this summer.
Post by: JR on May 27, 2020, 09:00:12 PM
Post by: wyorunner on May 28, 2020, 12:15:29 AM
Put a knuckle boom on the ferd flat bed, should be able to do anything you need in the shop, and more importantly, away fromYeah, youngster. You get older and you’ll do it just to prove you can....
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I didn’t say I couldn’t do it, I just have learned not to. Also why I’m adding another job crane to shop this summer.
The shop!!
That compressor is amazing, would be perfect on the back of a oil field truck.
Post by: stlaser on May 28, 2020, 07:45:27 PM
110’ of 1” black pipe cut, fitted and hung. All the overhead is done minus hanging the two reels and plumbing the tanks yet.
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Post by: stlaser on June 02, 2020, 08:37:47 PM
Yesterday my local electrician wired up the 10hp motor. Just waiting on me to plumb the rest of compressor so he can finish the two wires to the pressure sensor. Waiting on some flex hose from a good friend to plumb the tanks at compressors and storage into the overhead plumbing.
Being that it’s been 90+ last several days I added a second ceiling fan in shop to help circulate the hot air down and out.
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Post by: JR on June 02, 2020, 11:59:02 PM
Have you used these quick connects? Provest is the main brand but are $15 each.
https://smile.amazon.com/Campbell-Hausfeld-DA403400-Industrial-Push-Button/dp/B06XBJ6HZG/ref=pd_bap_rp_58?_encoding=UTF8&pd_rd_i=B06XBJ6HZG&pd_rd_r=b70acdfc-16c8-4986-b3f9-18296483bce2&pd_rd_w=QOJZH&pd_rd_wg=079BF&pf_rd_p=c25aa194-ae80-4837-964b-4db215970f69&pf_rd_r=V9KAVZCCVNYXAQDE73BB&psc=1&refRID=VBEE181FK5N6CYXA3C14
Post by: stlaser on June 03, 2020, 12:02:21 AM
I haven’t used those quick connects, I’m old school
I guess using the brass ones I buy in bulk.
Post by: JR on June 03, 2020, 12:07:46 AM
I still have lots of the old school but am switching once I used them. Greasy hands are no issue and easy plug in. Probably not as durable (like dropping the hose end) being a composite housing but worth the convenience IMHO.
Post by: stlaser on June 03, 2020, 12:28:31 AM
Going to try and get the new compressor plumbed tomorrow and v belts purchased for it. We had the motor running for a few seconds last night. Still need to wire air pressure switch once the plumbing on that tank is done. Then need to work on storage tank in loft too.
Considering building a copper water separator unit on output of storage tank prior to final line with reels and drop leg pipe for blaster. As it is now both compressors tanks are connected and plumbed to the 120 gal storage in loft. I’ll have a drain on that tank that drops down so I can drain it without having to go up into loft. Then maybe plumb it into copper water separator and have a drain on that as well. The line with reels is angled back towards storage tank currently with outputs for reels and drop leg coming out top of it via street L fittings.
Post by: JR on June 03, 2020, 12:36:14 AM
I may source another tank too, but people want WAY to much for them.
Post by: stlaser on June 03, 2020, 04:53:00 PM
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Plumbed more of the compressor today, HD didn’t have much in the way of pipe stand off components so I built my own out of the scrap tub after purchasing a cheap ubolt at HD
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Post by: stlaser on June 03, 2020, 06:00:32 PM
(https://uploads.tapatalk-cdn.com/20200603/3200be295ce685e53b5bf0b36915b63c.jpg)
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Post by: JR on June 03, 2020, 06:27:00 PM
Post by: stlaser on June 03, 2020, 07:27:32 PM
Looks good, is there a cooler?
I believe I posted about that earlier, so the two 60 gallon tanked compressors are plumbed together and dump into a 120 gallon unit in the loft. From that tank it goes out into the feed line for the hose reels and single drop to blaster. So I’m considering making a ladder frame cooler out of some rigid copper pipe. Then place that between 120 gallons tank in loft and feed line. As it is currently w/o that cooler air will travel 100’ before hitting final feed line.
Post by: TexasRedNeck on June 03, 2020, 08:00:07 PM
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Post by: stlaser on June 03, 2020, 08:08:42 PM
Why am I inclined to think that a cooler works better closer to the head where the moisture is in the hotter air?
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I don’t know, it’s above my pay grade. However, the moisture drops out as it cools. So I’d think it shouldn’t matter as long as it’s cool by the time it gets to my blast cabinet and the moisture has a place to collect prior. My 2 cents
Edit: if someone has experience in this regard I’d love to hear. I do know in our manufacturing facility the chillers were right before going into the cnc machines.
Post by: Nate on June 03, 2020, 09:33:13 PM
One would think that an air compressor manufacturer would have some tips and tricks?
Post by: stlaser on June 03, 2020, 09:51:04 PM
Shawn, have you talked to eaton and got their thoughts on it?
One would think that an air compressor manufacturer would have some tips and tricks?
Nate, good idea and I have not. Right up until Charles brought it up I had not even considered it an issue worth discussing, thanks redneck!
I guess my thinking was it is a “closed system”. The copper pipe is a great heat sink material, keeping it away from the heat source would seem like a good idea with the added benefit I only need one instead of two as the two compressors are across shop from each other. Putting it after the storage tank allows me to run one. Only downside is it’s up high in a shop (heat rises) however it would be located near a ceiling fan for air movement in the summer and winter months.
Post by: TexasRedNeck on June 03, 2020, 09:56:12 PM
On longer days when you needed to change out the water, you could have a toilet style fill valve and float with a manual drain valve. Every several hours just open the drain and then close it and the fill valve would take care of the rest.
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Post by: stlaser on June 03, 2020, 10:55:55 PM
Post by: JR on June 03, 2020, 11:33:31 PM
That beautiful tube you have running from your head to your tank is a great place for it. Run a few cooling tubes up your walls, you will neglect the water tub.
I have heard the HF cooler does a good job for under $400. Not cheap but think what you have in that now and what you want it to do.
Post by: stlaser on June 03, 2020, 11:39:37 PM
We’ll see how much water ends up in the final tube run to the reels. Then adjust from there.....
Post by: Sammconn on June 06, 2020, 10:54:57 PM
The hydro plants I work in have miles of air line literally.
The coolers are all at the compressors.
The coolers all allow water to the tanks.
Critical air goes through an air dryer.
Service air just goes everywhere.
Part of the design of the piping is water drops, just a nipple off of a low point to collect condensate.
A globe valve and a plug to allow draining.
Our big air receivers, have auto blow downs on them.
Every so often (varies on 100, 600, 1000 pound air system) the auto valve opens and allows the water to blow out of the bottom of the receiver.
I wouldn’t sweat it too much, and just add a water trap nipple or drop to each tank.
Check them at some interval and see how much you actually have.
Post by: stlaser on June 07, 2020, 07:16:54 AM
So I’ll chime in on the water thing.
The hydro plants I work in have miles of air line literally.
The coolers are all at the compressors.
The coolers all allow water to the tanks.
Critical air goes through an air dryer.
Service air just goes everywhere.
Part of the design of the piping is water drops, just a nipple off of a low point to collect condensate.
A globe valve and a plug to allow draining.
Our big air receivers, have auto blow downs on them.
Every so often (varies on 100, 600, 1000 pound air system) the auto valve opens and allows the water to blow out of the bottom of the receiver.
I wouldn’t sweat it too much, and just add a water trap nipple or drop to each tank.
Check them at some interval and see how much you actually have.
Thanks for chiming in, yeah will have several points to drain water throughout system. Seriously considering building a water trap from copper prior to final run with three automatic auto drains at bottom of it as well. Prior to that setup I would have at least three places to trap water and drain off manually couple times a week etc.
Post by: Bigdave_185 on June 07, 2020, 08:28:38 AM
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Post by: stlaser on June 07, 2020, 08:32:30 AM
Post by: JR on June 07, 2020, 01:20:13 PM
Long as you get the dry air where you need it, don't fill the tanks and drain, you should be good.
I have an auto drain on mine now and adding a cooler. The less I have to think about it the better.
Post by: stlaser on June 12, 2020, 05:01:44 PM
Also wired up the pressure sensor on new compressor. It turns on just need to install belts and pressure guage to see if it shuts off.
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Post by: JR on June 14, 2020, 01:20:54 PM
Post by: stlaser on July 28, 2020, 05:25:45 PM
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So after 3 trips to HD for plumbing parts I completed the total shop air setup. Worth noting to always check ALL of the ports on the air storage tank before placing it in a corner. Do not assume all ports have plugs in them or are tight. With both compressors running (62 cfm total output) it took 5 mins to crest 100 psi in the 240+ gallon system and just over 8 mins to shut off just over 150 psi
Super stoked and yes it’s a bit loud in the shop with them both running. The 10hp is far quieter than my older 5hp for what it’s worth.
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Post by: JR on July 28, 2020, 05:31:43 PM
I see 1 hose clamp off the valve, is that an issue for the size line?
Post by: stlaser on July 28, 2020, 06:10:57 PM
Shop air lines were 1” the port coming off compressor head and tank were 3/4” so had to add a reduced bushing and 3/4” valves are less than 1”
Post by: JR on July 28, 2020, 06:18:42 PM
Post by: stlaser on July 28, 2020, 06:53:37 PM
Post by: TexasRedNeck on July 28, 2020, 07:23:09 PM
And I’m amazed at some of those hose barb connections. Easily 300psi
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Post by: stlaser on July 28, 2020, 09:51:16 PM
Nice! Well done.
And I’m amazed at some of those hose barb connections. Easily 300psi
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Thank you, I wanted the t bolt type clamps but supplier was out of those and these are rated high enough so no big deal.
Post by: KensAuto on July 28, 2020, 10:26:24 PM
Post by: stlaser on July 28, 2020, 11:13:00 PM
That's a heck of a system you have there. I'm trying not to be jealous.
Thank you, it was nice being able to plug into the drop airlines now instead of that hose laying all over the floor. Need to finish permanently wiring in the 4 post and other than some paint and wall shelving it’s done for awhile. Need to give the blast cabinet some love then.
Post by: stlaser on May 08, 2021, 08:51:47 PM
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So I did a thing, small shops and equipment on rollers helps tremendously. So from some scrap angle and a set of USA casters I built a cart for my blast cabinet.
The cabinet will get loaded on this and wheeled to my buddies shop. He needs this more than I and needs my cfm of air and storage to run said cabinet. So he’s volunteered to get the older commercial blast cabinet up and ship shape.
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Post by: JR on May 08, 2021, 11:06:17 PM
I have so many parts/stuff in milk buckets and all those are on HF dollies. Saves lots of work.