Rewinding a Large Motor at KOFFLER

bukaymedia.com This shows how a large motor is re-wound, serviced, and tested. The scale, complexity, teamwork, and know-how required by the people at the KOFFLER Electrical facilities in San Leandro, CA. is amazing! Everything, from making the wire coils to the Vacuum Pressure Impregnation (VIP) process, is done at this one location. KOFFLER's website is at www.koffler.com
The motor in this video is used to power a pump that removes water from a submarine dry dock facility at Pearl Harbor. Another video at bukaymedia.com/... documents how the large pump impeller powered by this motor is balanced.
This movie is a good example of how web videos efficiently communicate a company's unique capabilities to its customers and prospects. Can you imagine trying to tell this story in 5 minutes without a video?

[@corin164]

I used to work on a submarine drydock in the UK. It was four sections of a much longer WWII battle ship dry dock. Each section had two alternators, neither of which were as large as the synchronous motor in the video. Very impressive facility and personnel at KOFFLER Electric.

[@antonmursid3505]

Antonmursid🙏🙏🙏🙏🙏🇮🇩🇮🇩🇮🇩🇮🇩🇮🇩

[@barrycooke2360]

What a great trip down memory lane this is. I started my armature winder apprenticeship in Manchester UK in 1960. Worked on small motors to 500 MW sets, motor testing, through college, drawing office, senior electrical engineer and qualified teacher. Hard work but creative and a great start in life! Loved it. The world should have an annual Tesla day. Best wishes?

[@johncantrell614]

Always nice to see guys who are proud of their work, and it shows here....

[@slimsammyone]

I'm jealous of the workers depicted in this video. They are skilled, and have the opportunity to work as part of a team in a technical field.

[@damianmartinez5578]

Rewinding the rotor, balancing the rotor, rewinding the stator, baking the stator then sealing the stator. I loved that job.

[@mx118racer]

Brings back memories of my apprenticeship days . Many hours goes into a build project like this . Solid bar windings building and insulation took over a month for a similar size stator . About 3months all up just for the stator rebuild of similar size .

[@TheKakkarvfx]

many hours

[@thomasgarner8403]

I work for a company that makes the coils that go into the motor always love seeing what happens after we get finished and send them off

[@christibbs7267]

Me too..i work in Birmingham...forming the stator coils

[@skateerdud]

2:50 I think we could really use that anti-corona paint rn

[@masterplayer5982]

XD silly you. It’s to prevent sparks.

[@saktimcqueen]

Awesome, i'm studying in electrical motor. And found this video. Thank you!

[@mbukay]

Hi Ari, I'm glad it was helpful! I also learned a lot about motors while filming these videos! Sort of like being a kid in a candy shop! Mike

[@noorazmi2329]

Chuck Norris want a 5 - 7 times this motor size and strength for his pocket sized cooling fan. Please help him build that.

[@aculasabacca]

@@noorazmi2329 Chuck doesn't have to cool his nuts. His nuts cool him.

[@kevinerhartjr.273]

I know this is old but where are you studying

[@gavincurtis]

Rosie O’Donnell thanks you guys for fixing her treadmill motor.

[@User0000000000000004]

"Hello? Yes, this is 1994. Who may I ask is calling? ... ... ... No thanks. We won't be needing that joke back, but thank you for calling." (click)

[@paulmonaco1148]

Nice video, I rewound my share of 2300 - 4160 volt stators, but the slip ring rotor was a very nice looking rewind. Of course we did more Mush / Random stators, just weren't that HUGE!!! LOL. My step dad worked at Vincent Electric in Oakland for 30 plus years Don Rader he was a Damn good winder. I retired 5-yrs ago, sold my business to a kid that I hired in 1979 and I still go in to visit and once in a while still stuff a cake job. I don't miss the knuckle busters.

[@DrunkenGuitarGuy]

Paul Monaco i just lost my job with GE doing this kind of work, even bigger motors than these, can i ask what kind of money a "winder" makes down there?? for the record i was getting 33/hr canadian, other places seems to pay about the same up here... just curious

[@thejavaman53]

Huge respect for you, sir.

[@paulmonaco1148]

@@DrunkenGuitarGuy I just your question, well in Portland Oregon the winders get paid a lot less. The range is from $17.50 -hr for beginner to $38.00 for an " OLD PRO " but the OLD guys always got plenty of OT. So they were really making $125K to $175K a year. In California where my step Dad worked I guessing back then he was in the $40.00 to $46.00 per hour range, Today they maybe $50.00 to $55.00 hr. The shop rate is $135.00 hr. so I'm guessing they make a little PROFIT!!! hahahahahaha.

[@theprof291166]

What an amazing job you guys do, very impressive.

[@mbukay]

I was truly amazed while filming their work! So hands-on, and must be done so precisely! Thanks for watching. Mike

[@TheKakkarvfx]

job

[@ExoticPromotionsRaw]

Amazing video and amazingly talented people doing the work, Thank You for this!

[@TheKakkarvfx]

work

[@ahmedelsheikh1987]

As an engineer, I find this video orgasmically interesting!

[@kahvac]

Excellent video and handcrafted work ! Thanks for taking the time to show us. True professionals !

[@nirbhaythacker6662]

As an electrical engineer, this video is a lot of fun to watch.

[@aculasabacca]

Who's looking for some of that anti-corona epoxy in 2020?

[@DAAI741]

All of us

[@DAAI741]

@k cookers Hey how much u want for it?

[@aculasabacca]

@Samuel Lynch Yes, we also know that corona is an electrical effect of magnetic fields. Our sun gets/has a corona around it. The virus when viewed through a microscope has some resemblance to the sun with it's corona and this is where the virus got it's name.

[@DAAI741]

@Samuel Lynch sir I think you missed the joke

[@janami-dharmam]

@@aculasabacca No, it is all about high electric field (has nothing to do with magnetic field). At sharp points, the electric field is so high it causes ionization of the air. Corona refers to crown, king's and queen's crown has lots of spikes and hence the name.

[@barrryrivers]

Love working with these guys! Real professionals!!!

[@joshuaamerson2365]

Very cool, my hands hurt watching this but i want to jump in!

[@nikolympiysky]

Such work is always forced to stand still open in amazement mouth. Great, very expensive equipment.

[@mbukay]

And so much knowledge and skill is required to do the job correctly!

[@sabitabhadra3866]

Ieiu I'll klGood Night 💤🌙 😊 Sweet Dream 🌠🌠🌠🌠🌠🌠🌠🌱🍯🌱🌱🍯🌱🐝🌱 🌱🍯🌱🌱🍯🌱🌱🌱 🌱🍯🍯🍯🍯🌱🍯🌱 🌱🍯🌱🌱🍯🌱🍯🌱 🌱🍯🌱🌱🍯🌱🍯🌱 🌼🌱 Hi honey! 🌱🌼Good Night 💤🌙 😊 Sweet Dream 🌠🌠🌠🌠🌠🌠🌠

[@sabitabhadra3866]

:O:: Pn

[@Barnekkid]

Nice image of the Russian sub at the beginning.

[@VOVKA_PUTIN]

Russian subs are the nicest in the world)

[@bryanmartinez6600]

Best submarine builders in the world Fastest Sub K-222 Largest sub Typhoon Class And they have great stealth subs as well The new Borei is lightly smaller but far more capable than the Typhoon

[@ShainAndrews]

While all valid points... I don't expect to see a Russian sub dry docked at Pearl Harbor so we can give it a once over.

[@nagarajnagaraj.1399]

Barnekkid

[@ct92404]

@@ShainAndrews Well...I guess if the Russians fork over some cash, they could slap a new coat of paint on it or something.

[@4bikeregistry]

Making money the old fashioned way, delivering true value to the customer. Great going!

[@mbukay]

So true!

[@wouldntyouliketoknow9891]

Nice to see a motor being rewound in America, by Americans with the proper tools and techniques. Too many of those dirt floor India rebuilds on YT.

[@hellohun7331]

This is real world work. Good job men.

[@izalman]

Just love those 1st few turns on the balancer.... will it stay on the rollers I ask...

[@carpii]

if you guys are looking to land your next major contract, the motor on my dremel has burnt out and needs replacing. The project is just in its early stages if youd like to send me your tender documents. Project budget is around $30

[@marekant7776]

carpii 😂😂😂

[@venkatbabu186]

Such huge motors. Pump water out of oil drilling. Ship docks. Mostly used for salt production from near by sea.

[@redsquirrelftw]

Will that fit in my Nissan Leaf? Seriously though that looks like crazy work. Need to always be on the ball since if you mess up it throws off the whole motor and you have to start over.

[@cccc-ru9ex]

Looks like excellent craftsmen. Nice job

[@MegaJohnhammond]

do you guys ever come in with a hangover, and just stare at all those wires going, "What the fuck"?

[@sofievanhulle3031]

beautiful craftsmanship The knowhow is tremendous

[@ShannonSmith4u2]

that was awesome, thank you. The detail and painstaking work, wow

[@anguskangus8222]

Wow, that is a beautiful shop and every one of those guys is a true master.

[@AluminumHaste]

I was mesmerized, amazing work!

[@DanBurgaud]

QUALITY JOB! +1M likes to the workers!

[@renesiqueiros2180]

Es lo que buscaba,es mi trabajo en equipo,I cant handle it on My phone,I need My Own computer to stay enjoing and learning thank you very much cause you share all of this with the public,make me feel special.

[@izalman]

Fantastic to see such skills, ask a kid what an armature winder is - clueless would be 1st guess.. Just loved the 1st run up on the balancing machine... 50/50 as to whether it'd come off the rollers. Been nice to see the finished motor work full belt emptying the dry dock some massive pump I imagine..

[@robertbritton656]

Why would a kid be expected to know that?

[@miguelcastillo545]

Wow, been along time since I've seen all those guys!! Pretty cool video

[@deerhunter7482]

A good job by skilled workers!

[@TheKakkarvfx]

worker

[@HELMKE_machines]

well done. Reliable workshop.

[@tellmesomething2go]

Really nice craftsmanship.

[@langer1972]

i worked at southern electric coil in Hammond Indiana for almost 20 years i made lots of formed coils like that.

[@backstabba8959]

I'm from Calumet city. Small word huh?

[@bulblast89]

How did you come to doing this kind of work? Is it something you aimed for or kind of just fell into?

[@christibbs7267]

I work at CMI in Birmingham...we make coils like this also....

[@soxxpuppet]

Very Very Impressive!

[@MenzelMotors]

great job, thanks for the video

[@ChiefofTradez]

Great job with the craft. The video edit was nicely done too

[@Marinos-Craft]

Very impressive! Cant imagine how expensive the rewinding must have been. Damn!

[@Keys879]

Watching this and then watching a Bangladesh man do it in a dirt field is bewildering.

[@nyanyuiedaniel7026]

I love rewind this is my second love.

[@ricardojuarez6534]

Great power american this motor what;s capacity in HP and kv requiered in your start ... thank Michael for your videos ...

[@savneetsinghrairai6823]

Exlent very useful understanding large scale motors working and inside structure

[@chicut84]

Amazing work!!

[@harryv6147]

Very nice video and the work and craftsmanship is great!

[@nazimsaifiartwork]

WOW amazing art work

[@akashshepherd4471]

i m interested. i love this kind of rewinding works

[@95thousandroses]

my table saw ain't gonna bog down now

[@dsdaigle81]

The company I work for has made stator coils for y’all before!!!!

[@diazlopez48]

Excelente trabajo...muy prolijo

[@adiletbeishenov5731]

damn never didnt see such big asynchr motor with wounded rotor.

[@minhhoinguyen2937]

Адилет Бейшенов

[@sunotospr8239]

@@minhhoinguyen2937 bekap yang gemuk H

[@elidadiluhaka8415]

I apliciate that, loving this work, from Tanzania

[@ct92404]

Yikes...it scares me to think of the voltage and current it must take to get THAT thing running.

[@Renville80]

ct92404 likely 2400V delta or 4160V wye.

[@electricalmaintenanceteam7702]

Nice video

[@civedm]

It's nice to know that the motor won't catch the coronavirus with all that anti-corona paint.

[@relaxandregenerationchanel8887]

If it is not a problem cold you tell me how many kg of copper is in that motor?

[@muhammadsaleemmuhammadhani411]

Wow! Great work.

[@DjScreaM514]

nice work fellas!

[@stefkaxiao4925]

great work,and this video has study how to made of generator

[@samlabo1688]

Nice I did not know how these big motors were repaired

[@JC-XL]

I don't see feminists pushing for equal gender representation in this king of laborious jobs ...

[@tonyavila2517]

I used to do this on a summer job in Midland Texas..lower scale though...220 v motors..

[@NeoB-Lac]

Tony Avila west Texas baby I’m from big spring

[@chuckboyle8456]

Those rebuilt DD motors are good for another 100 years Moke! Let’s go to Zippys for some hot dog sushi! Mahalo Koffler!

[@user-nl5hw8vp8b]

Beautiful!

[@philiphorner31]

It's fun work, did it for USN and USAF.

[@mikeestes1691]

American workers doing an outstanding job. Company's that send their work orders overseas or to another country just to save money has always seemed wrong to me. Keep American company work orders in America.

[@rafaelbuono7104]

Professionalism and technology.

[@sakthivignesh7009]

2:51 anti corona paint?? The whole world is in need of that now

[@oldschoolamerican714]

Awsome work gents!!

[@noutram1000]

Holy crap that's big!

[@user-uq6ms4hv1o]

حقيقة عمل يستحق التقدير والاحترام

[@josecarlosserralwigge519]

great job ! very professional.

[@FlatBroke612]

Gets all the way around installing windings "fuck I'm short one slot!"

[@viavictoreletrica3527]

Excelentes profissionais

[@mazharazhar3353]

Very good job

[@ericdebord]

This is crazy hands on labor .

[@cards0001]

Thats one big ass ebike hub motor!

[@alejandro851]

4:15 Very nice buffer 🔊🔊🔊🎵🎵🎵🕺💃🕺💃🕺

[@gerardobermudo5950]

thank you this video..nice work..god bless..all!

[@mbukay]

Thank you for watching it, and for your kind remarks!

[@clist9406]

Wow , that is huge .

[@bharathkumarmanilalthakor8879]

nice rewinding skild devloping me

[@sysierius]

I use those in my Honda Prius

[@treadmillrepair754]

Amazing. Is an electrical engineer symphony.

[@lttmachine]

that was awesome

[@uhmb6655]

Muito interessante a montagem deste motor. A qualidade e responsabilidade deve ser grande.

[@mohdibrahim3342]

I am also motor winder.. I want this job

[@TehNetherlands]

Nice. This surely would power my RC airplane :)

[@alexabadi7458]

Is that giant motor brushless ?

[@marvfpv1590]

Alex Abadi yes

[@AfaqSaleemChannel]

No, winding and brushes on rotor

[@ryandoe11]

Its not brushless

[@curiosity551]

Alex Abadi I think its a 3 phase slipring motor.

[@Saki630]

this is really cool!

[@adamz4345]

Extremely cool working on such a large motor. ..How many horse power ,rpm volts ,watts and amps??

[@henmich]

That's a cool job!

[@AllenGlesser]

Great job on the video production!

[@mbukay]

Thanks Allen!

[@confirmhandle]

Music was way too loud in distracting a lot of these types of videos where they show things being built they don't play any music at all instead they amplify the sounds of the shop really helping you put yourself there

[@JohnBoyDeere]

Man, if that rotor came off at 1:42 it wouldn't stop till it got to Kentucky!

[@sj9918]

What you said is correct. Large Pelton wheel takes more than an hour after stopping water jets to reach 50% of their running speed. Thereafter they apply reverse jet to bring to stop else it may take a day? This was on older designs, don't know how they manage in new designs.

[@sanjiths2961]

2:51 anti corona????? It's anti corrosion😂😂😂😂