Take a wild guess

Stories, News and General Yakking
Post Reply
PHPaul
Site Admin
Posts: 451
Joined: Fri Jul 12, 2019 6:43 am
Location: Downeast Maine

Take a wild guess

Post by PHPaul » Tue Sep 08, 2020 5:15 pm

Image

Image

Bought a set of arbor press plates for my 30 ton shop press. They're made of grade 50 A572 steel plate, approximately 10x10x1, machined flat both sides. The pair of them came in a flat rate box that weighed 67 pounds. The postmaster was NOT impressed...

First person to guess within $5 of the cost including shipping gets a free Attaboy from The Webmaster. :lol:

Bkeepr
Posts: 253
Joined: Fri Jul 12, 2019 7:23 am
Location: West-central Maryland

Re: Take a wild guess

Post by Bkeepr » Tue Sep 08, 2020 5:34 pm

$196.50 for the plates and shipping.

PHPaul
Site Admin
Posts: 451
Joined: Fri Jul 12, 2019 6:43 am
Location: Downeast Maine

Re: Take a wild guess

Post by PHPaul » Tue Sep 08, 2020 5:38 pm

Low.

Jim in RP
Posts: 147
Joined: Fri Jul 12, 2019 6:16 pm
Location: Negros Island

Re: Take a wild guess

Post by Jim in RP » Tue Sep 08, 2020 8:27 pm

$204.85 :?: 8-)
Only The Dead Have Seen The end of WAR. "Plato"

PHPaul
Site Admin
Posts: 451
Joined: Fri Jul 12, 2019 6:43 am
Location: Downeast Maine

Re: Take a wild guess

Post by PHPaul » Wed Sep 09, 2020 6:16 am

$253.15 :shock: :shock:

Got tired of trying to scrounge up enough scrap steel to press things together/apart. I've been choking on the price of these things for months but finally decided to just pay the man.

Bkeepr
Posts: 253
Joined: Fri Jul 12, 2019 7:23 am
Location: West-central Maryland

Re: Take a wild guess

Post by Bkeepr » Wed Sep 09, 2020 9:14 am

So Fawteen,

please don't take this wrong, I'm just trying to understand.

Background. I got my press at Harbor Freight about 8-10 years ago (I think you may have suggested it to me) and paid about $200 for it, including the sales tax. The press came with 2 plates that look like the ones you have in the picture. I doubt that they've been machined flat, and I don't know what kind of steel they're made from, but I do know that I've used the press a lot since I've got it, and the plates have been under a lot of pressure and (so far!!) not broken or bent.

My question: what's the added benefit of your machined, grade 50 A572 steel ones over my "made in China" freebies? Are mine going to fail soon? Or is it a pride in workmanship issue?

PHPaul
Site Admin
Posts: 451
Joined: Fri Jul 12, 2019 6:43 am
Location: Downeast Maine

Re: Take a wild guess

Post by PHPaul » Wed Sep 09, 2020 12:01 pm

I have a 30 ton press. I had a pair of Harbor Freight plates and wound up breaking one of them as they're cast, not forged. Most of it is that cast is brittle. Part of that is an excess of brute force and ignorance on my part, part is that the plates barely bridged the gap on my press with very little overlap. That puts a lot of load on the unsupported portion of the plate and increases the likelihood of failure.

The 1" thickness is overkill, but I needed the 10" width to fit the bridge on my press.

Bkeepr
Posts: 253
Joined: Fri Jul 12, 2019 7:23 am
Location: West-central Maryland

Re: Take a wild guess

Post by Bkeepr » Wed Sep 09, 2020 2:39 pm

OK, I got it. I can see that, and if mine ever break, I will go with larger ones, too...sometimes the ones that came with are just a bit skimpy to maneuver where/how I want them. Thanks for the edumacation...

Post Reply