My new BIG Brushless motor
 

Guys, thought you might get a kick out of this. I fix these things at work. I placed a dime on the mounting flange so you could get an idea of the size of this thing.

It is a submersible motor, and is water cooled. It has a hermetically sealed stator. This one is a little guy (only 75HP).Attachment 1075

Holy $h#t!! That thing is a MONSTER!!! Someone should fit it in a 1/10 truck:) ;)

What is it used for?

It is a submersible pump motor. This particular unit powers a pump (which I also rebuild) that goes inside a reverse-osmosis (RO) filtration system. This is a specially built motor that is made entirely of 316 stainless, has a special mechanical seal, and has a 17-4 PH mainshaft.

This particular motor and pump is heading back to a semiconductor manufacturer after being repaired. This particular customer of mine has about 15 of these units that run 'round the clock supplying clean water to the entire chip-fab.

Fabs from all over the country send their stuff here to be fixed. I also repair the pumps for Coca Cola that make Dasani drinking water.

It's a lot of work, -but it's still pretty cool stuff to work on. As a matter of fact, a lot of 3-phase AC induction motors are run on variable frequency drives (VFD's) that change the frequency of the AC, -esssentially doing the same thing as our ESC's do. The difference of course being that our ESC's are a form of "chopped DC", but the principle and operation is very very similar.

This one weighs in at almost 500 pounds!

Better build a big truck!

That's awesome! I'm curious, how much would a motor like that go for?

This one new is around 6 grand.

Thats not that bad.;)

Only 75 HP eh? That's 55,950 watts! :dft002: It would need a "few" batteries. And that must weigh quite a bit! A bit much for an R/C truck, unless it was a life size go cart or something. And for $6k, you could get a few LMTs and ESCs, with some cash left over for batteries. :)

What's the kV rating and max rpm of that motor - just for giggles?

A life size semi more like.

These aren't rated using the kV method like the DC setups are. The speed on AC induction motors is controlled by the frequency of the AC power. Here in the states, 60 Hz is the normal frequency on the mains.

You can vary the speed with a VFD (variable frequency drive), but some motors don't take kindly to being operated below their rated speed (heat buildup).

This particular motor runs at 3525 RPM at 460 Volts/60Hz. It is rated at 768 foot pounds of startup torque, and comfortably operates at 128 foot pounds when it is up to speed. Because it is water cooled, it can run well into the nameplate service-factor without too much concern. When I test this one on Monday, it will likely run somewhere around 105 amps at 480 volts.

Testing pumps around a 480 panel isn't for everyone, especially when hoses blow off (which does happen).

Oh well, gotta make the bacon so I can buy my playtoys. :027:

I once met a guy that built brushless motors for a living. I remember him telling me he worked on some really big brushless motors, like 400kW+. I showed him my little BASIC XL, and he seemed pretty impressed that something so small could have such a high power output.

Don't they use BL motors on the pods that hang under the big ships?

i thought i heard my neighbour talking about that..
6k is not bad, considering it's power/price ratio.

Possibly serum. I know the guy I spoke to made them for trains, but I presume they must be used in all sorts of applications

I would have to agree. The efficiency of these systems we play with are really good.

That's why I can't figure some of these hard-headed old-school guys that grumble about brushless motors.

Some people have a really difficult time embracing new technology and change. That's unfortunate, because brushless RC is here to stay, like it or not.

Just think what we'll have five years from now in BL or battery technology?

Kinda makes me wonder what lies on the horizon. I wonder if Lipoly's will get even smaller?

Whatever happens, if nothing else, maybe it will make the stuff we have now less expensive. Even in the last year or so, Lipoly's have dropped in price pretty significantly, -I like it!

You mean the bow-thrusters? I think the larger ones are hydraulic motors, but I'm pretty sure the smaller ones are likely electric.

No, it really isn't. Lots and lots of these motors are made, because the vast majority of them are used for pumping well water. The motor you see in the pic is sort of a "glorified" version of a well motor, with special bearings, etc. Because they manufacture these in such vast quantities, it helps keep the cost down.

And as we all know, we all have to get our water from a well of sorts, -somewhere.....

Daniel, known here as Dafni, can tell you some things about the future when it comes to energy delivering sources. (think in terms of fuel cells)

Only 7 posts young, and i like him already..... :p

I quite agree Jato Killer. One thing I have always wondered with the brushless motors we use in our rc's is that they really can't be that expensive to manufacture. Brushed motors have far more moving and fiddly parts to manufacture and assemble than brushless motors. Surely, with the higher demands that I'm sure will come in the future, the manufacturing costs of brushless motors will dramatically decrease.

Nope..

a friend of mine is chief engineer on a large passenger ship (280 meters long)
every motor that drives the ship (named Pods) works on electricity. those things are H U G E! the big Diesels and Gasturbine are used as energy generators..

a few megawatts..

Thanks for the kind words! -I'm just a realist. It really irritates me when someone won't look ahead and "get on board" with some of this stuff. Instead, they would rather live in a cacoon somewhere. I agree, not ALL new technology is great. My Mom just bought a computerized dishwasher that does everything but wipe your......

-At any rate, it would be great, except it has been through three circuit boards in a months time, the parts are on backorder, etc. etc. This is a brand new piece of equipment that is less than two months old, -and it's a POS. Some "new technology" stuff is just plain uncalled for. However, some of it is also very cool.

In regards to the fuel cell thing, -yes, I've been reading about it. That is truly something that could make batteries obsolete.

I can hardly wait!

Exactly. Look at how inexpensive you can find CDRom motors and fan motors. They crank those things out by the tens of thousands.

Admittedly, comparing a CDRom motor to a Lehner isn't a fair comparison, especially considering the magnets used, the windings in the stator, etc.

The motors we are playing with are very much a hybrid in terms of construction.

I have another brushless motor here in the shop I've been playing with. I'll post a picture of the motor and controller in a post or two. I'm at work right now and gotta get busy before I get busted!!

It's small, -5 amps at 110V. This sucker has some pretty serious torque. I tried to hold it with my hand and roll the speed control up, -that was a mistake!! OUCH!!!

I'll get back with you guys in a bit.

To an earlier post: Why would anyone grumble about BL motors? They are superior in just about every way (except maybe for cost) to brushed motors.

As far as new BL technology, I can see maybe better magnets, and better starting (low speed) control. I really think battery technology (or some type of fuel cell) is what is going to get better by leaps and bounds. I too like new technology and am usually willing to give it a try, just gotta watch out for those stupid "computerized dishwasher" type things. I like my manual dishwasher just fine - one of the kids. :) Just gotta apply new technology where it makes sense, not just for the sake of having it.

Oh, I've ran into several older guys who were so stubborn that they insisted their original RC-10 running a 15 turn motor was just the way it was meant to be. I had one older guy make the comment, -"man, you can't even control that thing at 50 mph, -what's the point?" People with that type of attitude will never be convinced, -they simply won't allow it. As to your comment about BL being far superior, -those of us that have gone BL, -well, let's just say that we'll NEVER go back!!

I agree 100%

That is a good size motor. I think in a small car or so it would be pretty cool.

Ok, here's one of those smaller units I was talking about. These are basically brushless stepper motors that are driven off of a brushless controller that is slaved to either a PC, or a PLC.

This one is one of the smallest one's we get to work with. These motors also act as positioning devices for manufacturing, etc. and are used for indexing stuff for robotics, etc. They replace complex mechanical positioning devices of yesteryear.

Attachment 1076


Here is one of the larger ones we work with. This is the one that almost wrenched my hand off!! After reading the 2HP rating on the nameplate afterwards, I really felt like an idiot!!

Attachment 1077


Here is the LVD-5 brushless controller. This unit is one of the smaller ones made. It is rated at 5 amps continuous at 110 volts. This unit can be controlled remotely via a PC realtime, -or even operate off of a PLC remotely.

Attachment 1078

mmm gocart :017:

Mmmmm dual BL gocart!:027:

Jato Killer, what engine is that in your avatar?

I would guess a 572 cubic in big block chevy. I think they put out about 650 hp out of the crate. Depends on the options you get.

Could you get me a couple of 100 hp models for my real truck?:005: :027: :018: Just kidding, but the way gas is going up up I'm considering it.

yup. its the imfamous chevy zz572 crate engine. i believe they come available in 650 and 750hp. its got aluminum heads, forged crank and pistons, bowtie intake, ect. all the really good parts. it what stacie off of trucks put in the '67 pickup he called copperhead.

OK, I can see the 572 now on the valve cover, couldn't make it out before.
That Stacie guy is a bad ass. Is there anything that guy can't do? Maybe Jato killer can give Stacie a couple of those motors and make a Hybrid out of that 572 engine?:005: That makes sence, right? 900hp Hybrid?

Man, I couldn't agree more. The guy is simply incredible. The thing that impresses me more than his unlimited skill and knowledge is his modest attitude. The same can be said for Jesse James as well. He is someone else who is highly skilled, -and yet, very modest and personable. Chip Foose is another.

It kind of goes without saying, but it has been my experience in life that it is the quiet guy sitting in the corner that you have to be worried about! <G>

I have met plenty of people who talked a REALLY good talk, and thought they were "all that", when in reality they didn't have a clue.

It reminds me of when I used to drag race every weekend. It wasn't the polished motors with the guys running their mouth you had to worry about. It was the quiet guy with the flat black painted motor that would unsuspectingly get everyone's attention.

And yes, the avatar is a ZZ-502 rat motor. Nothing signifies brute out-of-the-box power quite like that thing does. And, when you're a dyed in the wool Chevy guy like me, it is very fitting!

I am really enjoying this thread even though my original topic wasn't really related to the hobby. In all actuality, a 502 rat motor could be considered brushless, -couldn't it? I have been on forums where guys have been kicked off for going off topic. It's nice to finally belong to a normal forum that so far seems like a bunch of decent and knowledgeable guys.

Thanks for having me, -and thank you Mike for hosting the forum!

This is a cool thread, but Stacy is no longer on Trucks. they have a muscle head and a pretty boy on there now. They do know their stuff though

yea, they do, but i liked stacie better. i read on his website he is gonna be in a new show though.