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Here is a spec sheet for a motor I've used. Wiring diagram is on the last page. https://res.cloudinary.com/engineering-com/image/upload/v1728657533/tips/36L553Y104G1_Customer_information_packet_fhpegz.pdf

The way I see this you're applying the entire 30,000# directly to the mid-point of the shaft and using a moment arm of 45". The drum should carry the force out to the flanges, then to shaft. Best case loading is mid-point of the drum, 30,000 / 2= 15,000# Worst case, all 30,000# one end, up...

Look for some sort of "Float Valve" that will shut of when the level drops to a certain point. When the level rises, then the valve opens and lets the fluid get sucked out.

EdStainless, we're making non-magnetic anchors for the Navy out of A128, so we use their drawings and specs. We do make some parts from CF8M that we send out for pickling/passivating per ASTM A967 Nitric 5. It does reference A380. The castings are for the guiding the ropes on Ocean going tugboats.

@EdStainless, I found the Mil spec. Some of it didn't copy right, but I think you'll get the jest of it. MIL-S-17249 I love the part about the Government not having any responsibility if you use this for non-government work. 6.3 piC!diM. - A 1:1 hydrochloric acid solution at afiroximately...

@EdStainless, I'm looking for the document that stated the acid and concentration, the passivating company in Kansas was freaked out by how aggressive it was. We were etching the black scale off so they would be non-magnetic.

If I recall correctly, Meehantie was a trade name of a particular foundry back in the day. I have some gears I still make for machines that go back to the 1930's or there about. The drawing only calls out "Meehanite". I believe it was an old-timer metallurgist that told me that to use Class 40...

We make ships anchors out of the A128 for the Navy for its non-magnetic properties. Thats after we remove the scale which is very labour intensive or a VERY scary acid bath.

Have you looked at ASTM A128; Hadfield manganese? It the cast version of the AR plate used in the earth mover buckets, rock crushers.

There are a few examples of where having a "rougher" surface is desirable. One is the crosshatch pattern in an engine cylinder to hold a layer of oil and help seal the piston rings. I belief that the oil impregnated bushings recommend a 32rms to hold a layer of lub. There is a marine paint...

I have found that my 1999 Suburban front brakes will lock up first on snow and ice if I leave it in drive. If I put it in neutral, I have more control. I have a 1993 manual pick up which is where I got the idea to put the automatic in neutral. It takes the extra force off the brake shoes.

May be print out a big piece of Graph paper, place the cover on it and trace it. It's a lot easier to measure it when it's all on the same plane and solid surface.

MFAMET; Thank you for the input. Sorry about taking so long to respond, I've been traveling, and things are nuts at work. Best regards, David

It's been a long time ago, but if I recall, the filter system in the powder coat booth in a place I used to work at, had a "Back Flush" built in that would release a pulse of air to blow off the excess powder. I believe that there were 4 really big PTFE cartridges in it.

I'm looking for recommendations for an alternative to ASTM A487 Gr 10B. A487 is for Pressure Service castings and requires a lot of heat treating to process. Many years ago, our Metallurgist, who has since passed, selected this material to cast hammer heads out of. We hadn't made any of these...

Try Thern Winches. They do offer VFD drive with pendant.

If they are PTFE material,( looks like it in the photos) you may be able to wash them with water. I've had one for my shop vac for about 30 years, I just back flush it with air and rub the fins. It's as good as new after that.

Keep pulling the string. If you don't get anywhere going through their web site, talk to the local distributors and get names and number of their contacts and keep climbing up the chain of command. Ask to speak with application engineers, anyone on the technical side of things. Pick peoples...

Hillard has disc brakes of different styles. Stearns also some disc brakes, and DC coils for the electric motor brakes. If you have a hydraulic system as part of your machine, you could add an accumulator and some dc valving and use automotive callipers.

In my "Scrap" book of engineering articles, I have one from Machine Design magazine, dated July 26, 1990, for shrink fits that take in to account different materials. "Saving weight with shrink fits" I'd scan it, but I'm not sure about Copy Rights.