Production of the largest hydraulic excavator RH 400

[@EtecMax]

My Grandfather was an Engineer in Dortmund at O&K. He still has Models of all kinds of the excavators of O&K in his Home and he loves to tell about his work. When he retired they started using Computers, he was used to do all the calculations by hand. He gave me all of his sliderulers which he used during his engineering career which i treasure. This excavators was finished in his last year there.He is getting 97 next month.

[@deconteesawyer5758]

The last time I used my slide rule was in the 70s , as a straight edge when cutting wallpaper for a closet. In Dortmund Germany's unions priced themselves out of the market and shuttered the factories with the big shovels now made the USA.

[@james94582]

That's awesome that you have some old school sliderules that were actually utilized... Would be awesome to see and especially to have models of these kinds of units... Especially models you can't source any longer

[@ctdieselnut]

I'd love to talk to a guy like him. Make sure you get as many stories from him as you can if he's so inclined. No one lasts forever and when he's gone, those stories go with him. You never know how solutions to problems he had faced in his career may apply to something in your life, even if you're in totally different fields.

[@trif55]

@@deconteesawyer5758 it's crazy, imagine what people with these skills and willingness to get the job done (no fear of Health and Safety BS) were working today with all the advanced technology etc, loved seeing that guy checking plans for dimensions while having a smoke 11:34

[@williamhall9204]

The quality of the hydraulic excavators manufactured by O&K is second to none. Many of the units they made are legendary in the heavy construction and mining industry.A great example would be the RH 120C. I can’t think of a hydraulic excavator with a more stellar reputation. The RH 120C was absolutely loved by the British mining industry. The machine was available in either backhoe or shovel configuration. Another outstanding machine made by O&K was the RH 200. The company produced many great hydraulic excavator models. When O&K engineers developed the incredible TRI-POWER linkage system, it was a game changer. In my opinion the development of the system was an act of genius. Keep in mind that TRI-POWER is still in use on the most modern, state of the art CAT hydraulic excavators.Many thanks to U.K. TV-Dortmund Videos for posting this awesome video.Excellent job on the video production.

[@deanharris7149]

Surprised at how much I enjoyed this video. Seeing the machinery used to make such huge parts blew my mind. The thing is so huge my brain was surprised when a person was next to the equipment for size reference.

[@ypaulbrown]

I felt the same way.....marvelous

[@paulrichards8760]

I have two of these where i work and they are a true power house and an honor to operate. Thankyou for the play back from back in the day.

[@jackking5567]

I've had a try of one of these in the UK. They're just massive brutal machines and yet have such fine control over their working. The sheer size of them is astounding.

[@bigredc222]

Great video. That's one hell of a machine. You know it's a big milling machine when there's a catwalk on the cutter head with room for a tool cabinet and a chair 7:03. Thank you.

[@Gus1966-c9o]

Beautifully engineered machine . The Germans do some of the best engineering in the world .

[@krzaku1983]

Yes. Bastards practiced on tanks and other weapon.

[@stevedaddy5707]

Nobody does engineering quite like the British

[@iandawes4132]

All learnt from the British

[@bayareaartist999]

I drive a BMW, the germans take 9 steps when 5 would get the job done. German engineers are in love with their creativity.

[@sr20ser.]

@@stevedaddy5707 That is a good thing...

[@d.jensen5153]

This video has helped me to understand why cable and wheel excavators are more common than hydraulic excavators at this capacity and size.

[@mbox314]

I am not familiar with Cable and wheel excavators, why do you feel like that is the case?

[@ckm-mkc]

@@mbox314 Otherwise known as draglines....

[@raincoast9010]

@@ckm-mkc no

[@PA-uf4wd]

A work of Art. A Monster dual engined hydraulic Powerhouse. 🤙

[@douglasr.c.5622]

An 80 ton counterweight. What a beast !

[@Adriaantjuh7]

Thanks for sharing this video. This is very interesting and learnfull! 😊

[@MoreFormosa]

some sweet 1980's-90's digital graphics and txt, the memories, hah. Reminds me of the education videos we watched in middle school

[@kdegraa]

This machine makes my 52 HP tractor look like a toy. If this excavator was digging on my farm it could demolish a few hills to make my farm a lot flatter. That would be good.

[@TheSynthnut]

The RH400 was a very successful design, it outlasted O&K who got taken over. I'm puzzled as tonthe subsequent lineage of these as both Terex and Cat offered them, yet New Holland are stated as having bought O&K? Ian Cummings voiced so many industrials, he was the go to v/o artist, especially German companies it seems.

[@seangorry]

Wonderful video. Thank you for uploading it!

[@tymz-r-achangin]

Very detailed! Thanks for the video!

[@jblob5764]

20:49 sooo are we just going to ignore that it's leaking oil in more than one place just in this shot?

[@michaelmoser2130]

my thought exactly

[@morganfreeman5171]

that's why they assemble it first at the factory to assess any problems 👍

[@bigredc222]

It was a good leak, but if that's the only problem, that's pretty darn good.

[@mikethebike5014]

I don't think that's a leak it looks more like a wire these a couple of them all over the machine I'd assumed they are for computers for testing.

[@bigredc222]

@@mikethebike5014 I see something hanging down, I wasn't talking about that, you can see oil on the cylinders. I'm sure it was something minor.

[@cctsux]

My O&K RH9 is a baby compared to these. I would love to see any factory video of the smaller machines being made.😀😀😀

[@dereksomers9824]

bro that intro SLAPS 👏

[@rogerlongfellow54]

In 1970 sir Alfred McAlpine bought 6 new O&K RH6 backhoes for a big project in uk iwas 18 years old and operated no 6 for 2 years, happy days!

[@PA-uf4wd]

Each hydraulic cylinder delivers 477 tons of force. Holy Shit. 🤔😳

[@coaltrain18000]

That should split a log. 🪵 😂

[@andrewrees8749]

Amazing video, so much detail, I have a book,showing the assembley of the digger,

[@Chr.U.Cas1622]

👍👌👏 This device and the video is absolutely fantastic! But it looks definitely older than being out of 1998. I never thought that a big firm still used an old school overhead projector and no laptops while having conferences in 1998. Thanks a lot for making teaching explaining recording editing uploading and sharing. Best regards luck and health to all involved people.

[@mrfrenzy.]

The design of this machine started before 1995, and was built heavily on the designs (and engineers) that made the previous machine in 1979. Many companies at this time did not have computers any more advanced than Windows 3.1.

[@deconteesawyer5758]

@@mrfrenzy. The computers and CNCs ran Unix, not windows.

[@cherrymountains72]

Agreed, I was also surprised to see the video is from 1998. Nonetheless, I thoroughly enjoyed the entire format that was used including the music, graphics, voice-over and copy write.

[@lethukuthuladerrick5522]

How many hauling trucks needed to transport this massive machine when disassembled?

[@dereckjtbear2175]

And in 1999 it was sold off to various entities ending O & K.

[@ypaulbrown]

what a wonderful video, thank you so much for sharing....Paul in the US, Florida

[@diefaster7962]

production. Thanks again!

[@jelleseegers6693]

Where do i find this amazing music

[@suachecat]

80s and 90s. The quality excellence eras.

[@richieac1000]

Does this factory still produce the Cat version of the RH400 ?

[@MOTOMINING]

8:17 an efficiency of 97% calls for maximum precision.... Which went right out the window when the mechanics banged the gear on the seal housing! 😆

[@leebatt7964]

Nah, they planned that, thats where the 3% inefficiency comes from.

[@danielmarshall4587]

Thank you for this video, very interesting.

[@cmac7384]

I would like to see how they went about fixing problems that arose. In manufacturing that is the key. Something always goes wrong.

[@manishranamagar7073]

Great video❤️

[@pompeymonkey3271]

That was really interesting, thanks.

[@andrewrees8749]

The first digger blew a hydraulic seal on start up, just before the hand over to the Canadian customer, it was quickly fixed with a new cylinder,

[@beefchicken]

Is that why during disassembly everything looks like it's covered in oil?

[@andrewrees8749]

@@beefchicken no idea, read it in a book I have , the new cylinder was flown over from Germany,to Canada,before anyone noticed I guess , massive digger. Love to see one .

[@sparXKuijper]

24:27 Make that as low as minus 52 degrees Celsius , I've worked up there 😨

[@piscitellinicholas5240]

When are they gonna make a really big one ?

[@xKambr]

There was a larger one built after CAT purchased Bucyrus called the 6120B. I believe it is still on display in the States, and the second one was built for Shell in Fort McMurray but was never finished for reasons. I believe that was in 2015.

[@กลุ่มบริหารงานทั่วไปโรงเรียนอ]

Did you get fruity or producer edition? Im looking to buy soft soft but i dont know if Producer edition is worth it...

[@cbc7599]

8:53 No way!😮

[@yugotime1598]

This thing still in operation?

[@ibubezi7685]

"The construction-equipment business was sold to New Holland Construction, at the time part of the Fiat Group, in 1999" - Wiki

[@michaelljiljak5926]

Used to work on these beasts in Western Australia

[@mattgaming8717]

Funny how back then it was tested there and not on the actual mining site. Double build.

[@RubenKelevra]

Wo habt ihr denn die VHS Kassette gefunden? 😂

[@christopherbrown6493]

I watched this entire video, how did you guys produce this to capture the attention of the viewer? In the 90’s no less.

[@floydwilliams3321]

I work on heavy equipment but nothing like that/ absolutely amazing

[@deconteesawyer5758]

When you pull the pins does the load get dumped on the crane and go wildly careening around like 21:55 ?

[@blender_unleashed]

The music in this video is insane

[@andreashutterer4740]

How many of these were ever built?

[@xKambr]

I know of 22 of them across various generations of design.

[@ReachOutToWilliam]

Did anyone else see John Candy working on the tracks? I had wondered what happened to him.

[@sheik9956]

so like how much for one of this ?

[@matthewdickson7838]

Excellent video thankyou 👍👍👍

[@markgoddard2560]

It’s amazing that quite intelligent people assume that inane beat music is an essential factor in advertising.

[@sajidrafique375]

Not all countries can make this wonderful machine

[@napleswolverine7189]

That’s one hell of a handsome machine 👍🏻

[@bighairycat]

It is such a shame that Caterpillar decided to move manufacturing of these machines to South East Asia and the quality is now so poor that weeks of reworking is required when assembled. There is no quality anymore.

[@jayryan1956]

very disappointing

[@05clenharth]

Where is production now Dortmund is no longer?

[@bighairycat]

@@05clenharth The diggers are now made in Indonesia and the build quality is terrible.

[@wakeupgeoff]

Thought that was Bubbles from Trailer Park Boys in the thumbnail

[@themandolinmaniac]

Surprising now to see factory workers without helmets, etc.

[@digndoze]

Massive operation 👏

[@wdwerker]

I was interested so I looked O & K up…defunct! Company was broke up and sold off in 1999 ! New Holland bought the construction equipment branch.

[@69Emoji]

Is that Skippy in the thumbnail?

[@markward6076]

Does a warranty come with that?

[@sheik9956]

yeah

[@geoffrey6000]

I'm starting the first year of study for mechanical engineering, if i ever get to work on designing something like this it will be hella worth it. Also, (didn't realize at first, but) of course these are Germans xD

[@RomeKG471]

This machine is a fast way to load trucks.

[@milestone_achiever4634]

Still using 80s music in a late nineties documentary😨 This model, the Komatsu PC8000 and Liebherr 996 are my favorites!!!!!

[@andrewrees8749]

Where is this model made now, Germany or the U.S A ?

[@mkemachineinc.8058]

Made in South Milwaukee, WI and is now the Caterpillar 6090.

[@godbluffvdgg]

TAKE THAT, HITLERS !....:)...

[@andrewrees8749]

@@mkemachineinc.8058 P H shovels are made in Milwaukee, not Caterpillar.

[@mkemachineinc.8058]

@@andrewrees8749 Not quite. Caterpillar bought Bucyrus and they are in South Milwaukee. Komatsu bought P&H and they are in Milwaukee. Caterpillar makes this shovel and it is the 6090

[@andrewrees8749]

@@mkemachineinc.8058 aah yes,I got you, Illinois is the other place over your way, Cat are made, thanks for the information, I live in Wales, part of the u,k, did go to the minexpo many years ago in Vegas, seen some massive equipment. Seems my first Cat d11 .

[@soapbar88]

I wonder what happened to syncrude in Canada and the rest of the Canadian oil mining industry

[@andrewrees8749]

Oil sands are still going in Alberta, expanding considerably,

[@NoName-zn1sb]

Music bed's a little loud, eh?

[@warfivevy0neMachines]

Masterpiece Presentation

[@godbluffvdgg]

CAT was smart to buy this company...

[@joedell71]

Anyone else catch the oil come leaking out of that hydraulic cylinder at 20:45 ??

[@JuhaErkkila]

Or maybe more like some grease stains in cylinder?

[@sourdoughbornsourdoughbred4712]

Are these available for delivery my address ?

[@gxlorp]

Why is bubbles in the thumbnail

[@RounPonda]

LOVE this video...

[@zadrik1337]

This marketing video must have worked as the company was sold in 1999.

[@dneary3295]

I came to see the mechanics, I stayed for the music.

[@espenbjerke1905]

And then Caterpillar bought them up, now O&K does not existt

[@trainnerd3029]

11:33 smoking on the job? How old is this video?

[@ckm-mkc]

From the description 1998....

[@michaelmackey754]

Truly amazing

[@imchris5000]

maximum precision then proceeds to show the guy just slamming the part in the bore

[@niczoom]

Great video1

[@donbrashsux]

Just incredible engineering

[@peterclaassen5750]

Who else thought that was bubbles from the trailer park boys in the thumbnail?

[@jamesw9930]

The irony is that O&K went out of business the year after this video was made,

[@zaxisontherun]

is that Benjamin Franklin on thumbnail

[@bradleywilliams2401]

I'm Glad CANADA Went 2 the U.K. 4 RELIABLE MINING EQUIPMENT Not the states, Their Sub-standard Grade Steel & Other Components !! BRILLIANT I SAY !! 🇨🇦A PROUD CANADIAN'S PERSPECTIVE🇨🇦

[@Tom-Lahaye]

O&K is German.

[@bradleywilliams2401]

@@Tom-Lahaye - My Mistake ! Thanks... 🇨🇦

[@ArthurDentZaphodBeeb]

@@Tom-Lahaye O&K 'was' German.

[@ckm-mkc]

@@ArthurDentZaphodBeeb Yup, now owned by Americans.... Cat & New Holland according to the comments.

[@mattywho8485]

Funny... CANADA went to the USA for their CAT haul trucks though !!!!

[@Ragginn1]

im 0% surprised an oil company bought this

[@jhosk]

Oh how I would love to play with this thing

[@bobg3034]

I think CAT bought O&K?

[@zaxisontherun]

O&K was already bought before Caterpillar did

[@jonka1]

Nice machine Great pity about the bloody music.

[@JohnLee-vj9lh]

I agree with you

[@artembolyak117]

Как у нас на УралМаш Заводе!

[@studebaker4217]

Super video of an amazing machine, but it would be a lot better without the totally unnecessary beaty music competing with the narrator.

[@brickleyyard4966]

I think its called final drives and planetary gears not travel gear but still a grate video and as outhers say shame about the awful music

[@carlthor91]

Depends upon which country you are from.

[@ciogon]

20:48..something is dripping on that cylinder....

[@carlnapp4412]

Once upon a time...

[@ahill7099]

Wow did u see the size of that guy's might torch...I think he's compensating for something..lol joking great work ...real Tonkas was also gonna say something about guys missing hard hats but I guess if it's not a bump on the head form you its not going to help...I figure if something goes wrong the hat ain't doing shit

[@mdlanor5414]

Can anyone figure out what is missing in this video?

[@code227stalker6]

german power!!!!!

[@vmaxes]

Shovel not excavator

[@nigel900]

They keep focusing on Africa… like Africa ever produced anything other than mud huts and super viruses. 👍🏻

[@andrewrees8749]

Rh 200 was shipped to s Africa in the 90,s , its on KZbin, maybe they are referring to that machine .

[@nigel900]

@@andrewrees8749 I suppose South Africa was the exception.

[@andrewrees8749]

30 yrs ago, a new Rh120 o.k machine was being assembled for a coal mine not too far from my home town, I didn't know much bigger machines were in use,all over the world.