[TheForge] Air cylinders

Sat Jul 13 16:05:01 2002

What I bought isn't going to compare well:

four 8" diameter, 10" stroke
one 6" diameter, 10" stroke
one 2.5" diameter, 6" stroke
The lot went for $57.50 on Ebay, plus significantly more in shipping. 
There was some confusion on the part of the person running the auction 
(who no longer works there....), there were supposed to be six 8" x 10". 
Mike threw in the little cylinder. I figured the price was still too 
amazing a bargain to pass up! The person-no-longer-working-there gave me 
a way too cheap shipping cost ($14 each). I was amazed that Mike stood 
by it--when he shipped me the cylinders, he paid UPS more than I paid 
him! When he shipped, he was out 6 cylinders and about $50.

After I checked the cylinders out, I sent him a check to make up the 
difference. I was really impressed with his attitude. He was absolutely 
following through on the deal that a fired former employee set up. All 
told, I paid Mike $57.50 and UPS about $200, so he made out all right.

They were supposed to have been used as a door press (i.e. squishing 
stuff together to glue up a door). The cylinder walls are non-magnetic 
and look like aluminum; the end plates are steel 1 1/4" thick. All 
cylinders are double acting.

I'm pretty sure all the cylinders that Blackhawk carries are used (which 
I should have said before). They mostly deal in wood machinery. I don't 
know if they make porta powers, but doubt it. There's a lot of blackhawk 
this and blackhawk that in Iowa.

I'm aiming at using one of the 8" and the 6" to make a self contained 
Krause/Nazel type air hammer. I don't know if I will be making it this 
winter (and have to move it), or after I get out East. I'm going to 
experiment with ram weight a bit to see how many HP it takes to drive 
how much weight. My larger phase converter has a 7.5HP motor, and I have 
a nice 10HP motor also. I will probably put the 10HP in the converter 
and see what kind of hammer I can make with the 7.5HP. Unless, of 
course, I end up with three phase.

Steve

Ralph Sproul wrote:
>         Steve,   What did you buy the air cylinder for?  and air hammer?
> What was the size vs price so as to compare it to McMaster Carr or another
> manufacturer in reguards to mass produced items like they carry.  Was the
> cylinder you purchased steel or aluminum barrel?
>         If this was a special order item needing to be manufactured custom,
> I would then say we can't compare soup to nuts here.  Do they have a line
> sheet of the products they carry or is it all custom to fit orders?
>         Just curious as I buy a fair amount of this type of gear and I'm
> wondering a bit more on the "quite satisfied" part.
>         Another question for you would be:  Are these the folks that make
> the Blackhawk porta powers for body work?
> 
> Ralph Sproul - Bear Hill Blacksmith
> Webster, NH
> 
> 
> 
> 
> 
> ----- Original Message -----
> From: "Steve Smith" <[email protected]>
> To: "theforge" <[email protected]>
> Sent: Friday, July 12, 2002 9:18 PM
> Subject: [TheForge] Air cylinders
> 
> 
> 
>>If you need an air cylinder (probably hydraulic cylinders too), I
>>recommend you try:
>>
>>Blackhawk Machinery
>>54 Lane Street
>>Waterloo, Iowa 50703
>>(319)232-8184
>>
>>I recently completed a purchase from them and was quite satisfied. Tell
>>Mike I sent you.
>>
>>Steve Smith
>>Loveland, Colorado
>>
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