Search found 4813 matches

by BadDog
Tue Sep 24, 2019 3:18 pm
Forum: General Discussion
Topic: Will a Bigger Compressor Make me Happy?
Replies: 31
Views: 5704

Re: Will a Bigger Compressor Make me Happy?

If you don't speed up the pump on a compressor, it can't pump more air, so I'm not sure I understand the comment about not having to speed it up. The motor may still run at 1725 or whatever, but if the compressor is pumping more air, the pump has to be turning faster. My comment is based on a conve...
by BadDog
Mon Sep 23, 2019 7:30 pm
Forum: General Discussion
Topic: Will a Bigger Compressor Make me Happy?
Replies: 31
Views: 5704

Re: Will a Bigger Compressor Make me Happy?

I thought I remembered mine was cast with "Made in USA", but just took a look, and it appears either I am mistaken, or it's on the side near the wall. I didn't care enough to climb over to see... Yeah, I know what you mean. In a previous life, I owned various vehicle related businesses and hobby stu...
by BadDog
Mon Sep 23, 2019 6:56 pm
Forum: General Discussion
Topic: Will a Bigger Compressor Make me Happy?
Replies: 31
Views: 5704

Re: Will a Bigger Compressor Make me Happy?

IIRC, when I was considering upgrading my Curtis to 7.5 HP, all that was required (according to Curtis tech) was to fit the pulley hub to the larger shaft. No speed change. But that was a couple years back now, so my memory may be fooling me. Perhaps that was an intermediate but wouldn't produced th...
by BadDog
Mon Sep 23, 2019 6:48 pm
Forum: General Discussion
Topic: Will a Bigger Compressor Make me Happy?
Replies: 31
Views: 5704

Re: Will a Bigger Compressor Make me Happy?

I found this on another page. Nobody called him on it, but it is the internet... 21.2 @ 100 psi 20.3 @ 175 psi It runs my big blast cabinet just fine. I don't just lay on it for hours, but that same cabinet literally took ALL the wind out of my previous "7.5 chinese HP" 60 gal in just a couple of mi...
by BadDog
Mon Sep 23, 2019 6:42 pm
Forum: General Discussion
Topic: Will a Bigger Compressor Make me Happy?
Replies: 31
Views: 5704

Re: Will a Bigger Compressor Make me Happy?

I decided to take a moment to look it up. Curtis site seems to no longer make it easy to find ratings and such... https://krugeair.com/fs-curtis-reciprocating-air-compressor/ Mine (yours?) is the vertical on this page. Curtis 5E2VT8-A2 is what I have. According to them, it looks like it's rated up t...
by BadDog
Mon Sep 23, 2019 6:38 pm
Forum: General Discussion
Topic: Will a Bigger Compressor Make me Happy?
Replies: 31
Views: 5704

Re: Will a Bigger Compressor Make me Happy?

Mine is a 2 stage intercooled, so 2 pistons with a heat exchanger between stages. And you don't upgrade the compressor by speeding it up. The compressor design has a specific working range for efficiency. You upgrade by adding HP within the limits of the pump. And I seem to recall seeing that the E5...
by BadDog
Mon Sep 23, 2019 6:24 pm
Forum: General Discussion
Topic: Will a Bigger Compressor Make me Happy?
Replies: 31
Views: 5704

Re: Will a Bigger Compressor Make me Happy?

If I recall correctly, you have the same compressor that I have. Curtis 5 HP 80 gal with the E57(?) compressor? If so, that already has the big pump on it, but just the smaller 5HP motor. The only difference between and the higher capacity is the motor HP, so very easy upgrade. I've considered doing...
by BadDog
Mon Sep 23, 2019 1:58 pm
Forum: General Discussion
Topic: Vise Squad
Replies: 23
Views: 4775

Re: Vise Squad

To be fair, I didn't "think they are cast iron", they were cast iron, and as you enlightened me, they no longer are. { Not an engineer, so talking above my pay grade, but this is what I think I understand } That said, I don't think it's the same thing. Vise bodies are relatively consistent in design...
by BadDog
Wed Sep 18, 2019 7:59 pm
Forum: General Discussion
Topic: Upgrading Harbor Freight 20-ton Press to Air
Replies: 34
Views: 6024

Re: Upgrading Harbor Freight 20-ton Press to Air

Oh, didn't know that. Mine had those grey cast iron things that were not only not flat, but far too easily broken in use. My current press has 2" x 12" x 20" steel AR 600 plate. Freaking heavy but they aren't going to be damaged by a measly 50T press. A friend of mine repairs heavy mining equipment ...
by BadDog
Wed Sep 18, 2019 4:22 pm
Forum: General Discussion
Topic: Upgrading Harbor Freight 20-ton Press to Air
Replies: 34
Views: 6024

Re: Upgrading Harbor Freight 20-ton Press to Air

Sounds like the same thing. I think it was a couple or three hundred for the air-over pump I have. I got it planning to put quick fittings on a variety of setups. For example there is the press, and a big tube bender, maybe even the engine crane, etc.
by BadDog
Wed Sep 18, 2019 3:42 pm
Forum: General Discussion
Topic: Upgrading Harbor Freight 20-ton Press to Air
Replies: 34
Views: 6024

Re: Upgrading Harbor Freight 20-ton Press to Air

Yes, that's a fantastic feature. Mine still has the 2 speed hand pump, which is good enough for my needs. But I've often pondered converting to air-over. I've got one of those little stand alone air-over power packs (like a big brick), so all I would need is a coupler. And it even has the foot opera...
by BadDog
Wed Sep 18, 2019 3:37 pm
Forum: Welding
Topic: Buy Acetylene Outfit for Both Acetylene and Propane?
Replies: 48
Views: 8567

Re: Buy Acetylene Outfit for Both Acetylene and Propane?

Mine is much like that on the O/A cart, and the shield bottles. The main diff is my chains drop into what amount to grab hooks on the side, and stay in place by gravity. And the bottoms are held in place by bits of material welded roughly tangent to the bottle edge so it can't slip.