This was in my recommended, I dont know why I watched it, especially why I watched the entire video, but it was completely worth it. (Still here, 7 months later. I can confirm, this video is STILL completely worth it and I absolutely watch it regularly)
this is a very well made sales demonstration indeed. missing a few infos of interest. if i where in the constructoin field id love to visit a site with this equipment in action. so fluid animations from a technicians 3d program are not all that easy with all the components seen in this video. heck i spend a few days just making the assembly video for my examination back in the days. and it was passable at best by the standards we see today XD
This looks like a 21st century adaptation of Marc Brunel's (father of Isambard Kingdom Brunel) technique for sinking two 50ft diameter vertical shafts in 1825 during the construction of the Thames Tunnel. A cast iron ring is laid out and the soil was dug out from within the ring by navvies. As the material was removed it could no longer support the ring, which had cutting edge at its base, so the ring slowly sank. As it progressed down bricklayers constructed the shaft on top of the iron ring. The art was not to stop its progress downward to prevent the surrounding soil settling and gripping the shaft and preventing it going down further.. The Thames Tunnel is still in use today, its dimensions being large enough it is used for London Overground train services.
Can I borrow your machine once in a while to dig some holes for fun too? I used to dig holes in my backyard just because I liked holes. This machine will make the job much easier.
reality is not a movie you stupid fuck! i hate loser liek you who think the government is soem sort of evil institution that seeks to hurt its citizens! you live in a fucking movie inside your head!
I was part on the team that sank in the late 70’s at North Shelby in UK. North Selby Mine was started in November 1979 and completed in July 1986 with a shaft depths of 1032m (No1) and 1045m (No2). Whitemoor Mine was started in February 1980 and completed in June 1985 with a shaft depths of 931.6m (No1) and 941.7 (No2).
What a clean shot to cascade one layer of RCC, over other and sank it, I feel blessed that I have done civil engineering. There are so many wonderful machines made by humans, yet to be explored by me.
as a technician i really understand you. it is somewhat satisfying to find these machines and seeing them demonstrated. even better when you had no idea they existed
I am not in construction, but the information contained in this video really brings to light a genius design. If I was in building tunnels and shafts, this thing would be my first pick, for it's mobility and what looks to me is a extremely smart design. All components serve a function and can be easily replaced, moved or supplemented. There is no wasting time and very few people are needed to making this work. As well as the ability of separating and cleaning the dirt, that's very cool! Genius!
This system of sinking vertical shafts was done by Marc Brunel (Isambard's father) in 1825 for works on the Thames Tunnel, obviously the digging was done by hand in those days. Using a cast iron ring with a cutting edge at the base of the shaft, the shaft walls being of brick. As the shaft sank the bricklayers built new courses on top.
I'm pretty sure this was engineered and innovated, not invented. Maybe a few components were invented to be patented, but most of the machine probably can't be patented.
I won't buy this for my little garden (5x7 meters...) for sure 😀, but this was really a very interesting piece of technology to watch. Thanks an good luck, guys!
Foundation work uses a smaller version with a Soilmech excavator equipt with a Kelly bar. Steel casing instead of prefab concrete than it can be removed if called for and reused. Concrete piling with steel rebar is Tremme poured to exclude ground water.
I've been digging holes like that in the beach for sandcastle purposes for years now, but I have been doing it with a shovel. I want to upgrade my technique with some technology. What are your recommendations for vertical shaft digging tools that are human-powered?
The VSM is equipped with measuring devices for all of the movements, to have full control of the excavation. During the sinking of the shaft, the shaft lining is suspended by steel cables to the lowering units and these units does as well have integrated measuring devices to have full control while sinking. In addition the VSM is supplied with a vertical measuring system which are monitoring and displaying the verticality of the shaft lining all the time. The combination of the these measuring device ensures a full control of the shaft and the perfect position of the shaft all the time and till the end of the shaft installation. Hope this helps. Sorry for the delay. Regards.
So whats to prevent this kind of system from boring down through the crust? Seems to me it should be able to continue on until it hits magma since its covered in water.
For vertically-launched missiles, there are cold launch systems that use gas from a separate gas generator (this gas can still be a few hundred degrees hot, but is cold compared to the rocket exhaust) to push the missile out of the launch tube, and it only ignites its engine once it is fully clear of the tube.
the parking concept would work in a lot of locations that would otherwise not allow a above ground parking structure too be built ,or too replace existing ground level parking lots for increased parking volumes ,,, added security being below ground for low theft or vandalism
Another application could be below-grade placement of nuclear power plants, instead of containment buildings that are above-ground. I note the current upper limit of 18 m on diameter, but maybe the new generation of Small Modular Reactors (SMRs) could be designed to fit within this constraint.
cool... if it lives up its promises the reduced environmental impact is worth whatever the price differential with old school methods... does anyone know if it does?
Good day, thanks for contacting us. The sinking rate of an shaft with the VSM is linked to several parameters like, ground conditions, working time on job site and lining method. For more details please check our website (www.herrenknecht.com/en/products/productdetail/vertical-shaft-sinking-machine-vsm/) or contact us at pr@herrenknecht.com. Regards.
I used to sink shaft years ago. My question is how is this device going to get through ground that is broken up so bad that the boulders are as big as apartment buildings. One little shift of material and the equipment is stuck and no amount of lubricant on the outside of the shaft will be able to allow movement. Love the machine for minimal shaft sinking though. Poured the plug on a 3600 foot shaft years ago and this would never have been able to accomplish that depth. Pure sweat and muscle to get the job done.
Thanks for reaching out to us. You can read more about the Shaft Boring Roadheader (SBR) Technology from Herrenknecht which adapts the proven VSM technology to mining requirements. A full report is available under this link: aaom.herrenknecht.com/en/issue-13/. The SBR was developed for the mechanized sinking of blind shafts in soft to medium-hard rock with up to 120 MPa and shaft depths up to 1,600 meter (5,250 foot). If you still have any further request, you can send us your request to the following e-mail address: pr@herrenknecht.de. Best regards. Herrenknecht AG
HerrenknechtAG, thanks for this video! This technology would be great for siting neighborhood modular nuclear reactors. Imagine a carbon-clean gas reactor serving your neighborhood with power and heat for 15 years without refueling.
Skip the thermoneucular and go right to groundwater based geothermal to service several users, using renewable greenpower for the electricness...the cheapest way to generate electricness. Plus, there are no lingering problems (many years of human generated radioactive type poisons). What's there not to like, unless you are a big or little corporate socialist capitalist .It's all here right now, and is very scalable as to size. IMHO.
good question. it got a very nice animation flow and high quality textures as i remember them from our technincal 3d programs in technical school. just more fluid and able to animate much more at the same time
Try digging on my property. I'm halfway down a volcano mountain that erupted over 100 years ago. The soil is embedded with lava rocks from hand size to as big as a small car. Digging around here with a hand shovel is absolutely impossible. I have a 35,000lb Case D1150 dozer/backhoe that the backhoe struggles to dig a hole. My son hit one of those big boulders, had to dig around it and then use the 4 yard [1 yard is 3ft cubed] bucket to push/lift it out and move it into the forest. It must have weighed as much as a GMC Duramax crew cab truck.
Pretty cool technology. When I win the lottery and I want to build my dream doomsday home, I know who to call. A giant silo in the ground with a yurt on top to disguise it! Yeah, baby!
Consider looking up Abilene Christian University Molten Salt Research Reactor - < 15 months to construct building with no special equipment. I do not believe it will take that long to construct these on small scale deployments. Please consider reviewing the following on youtube: Vertical Tunneling Boring - Vertical Shaft Sinking Machine (VSM) - 1-5 Meters per day - GE Steel Bricks - - Reactor Pressure Vessel is < 2.5 inches - here is an example of tech to manufacture stainless steel for nuclear - Holtec Discovery channel ... (I know this is not an RPV but an excellent example of how it could be done.) - Welding - local vacuum electron beam welding - Small Modular reactor
They can be used as launch and reception shafts for tunnelling operations, access and ventilation shafts for traffic tunnels, or service and access points for all kinds of underground structures and buildings. Furthermore, special solutions such as inner-city, underground parking shafts (underground parking towers) or exploration and ventilation shafts for mining extend the range of applications of these flexible machines
this will not work properly on the moon. it may be possible to use a modified version of this if a way to compensate for the fluid transport problem can be found.
Dear Bruce, Maybe you can find some more details to answer your question on our product page here: www.herrenknecht.com/en/products/productdetail/vertical-shaft-sinking-machine-vsm/. we hope this helps. Best regards.
Dear Iorton 190, we hope our product page can help with further details: www.herrenknecht.com/en/products/productdetail/vertical-shaft-sinking-machine-vsm/ Best regards, Herrenknecht AG
This was in my recommended, I dont know why I watched it, especially why I watched the entire video, but it was completely worth it. (Still here, 7 months later. I can confirm, this video is STILL completely worth it and I absolutely watch it regularly)
Me too...
Same
Now I want a shaft house, shaft garage and shaft storage.
Agreed... This also needs to be deployed on Oak Island!
youtube algorithm
i have no idea why this was in my recommendation or why i watched the whole thing....
Well You Got the Shaft LOL
Same here
I kinda enjoyed it though.
The almighty AI knows me so well.
"If you didn't know, now you know."
It was interesting.....
"What do you do for a living?"
"I design equipment that digs holes."
"So like a shovel?"
_"... yes but deep."_
I really like animations for this reason, that it makes learning and understanding easy, thank you for such wonderful animation.
Same for me, thanks for putting it in so nice words.😎
I agree. It is also, aesthetically and auditory pleasing.
this is a very well made sales demonstration indeed. missing a few infos of interest. if i where in the constructoin field id love to visit a site with this equipment in action. so fluid animations from a technicians 3d program are not all that easy with all the components seen in this video.
heck i spend a few days just making the assembly video for my examination back in the days. and it was passable at best by the standards we see today XD
This looks like a 21st century adaptation of Marc Brunel's (father of Isambard Kingdom Brunel) technique for sinking two 50ft diameter vertical shafts in 1825 during the construction of the Thames Tunnel.
A cast iron ring is laid out and the soil was dug out from within the ring by navvies. As the material was removed it could no longer support the ring, which had cutting edge at its base, so the ring slowly sank. As it progressed down bricklayers constructed the shaft on top of the iron ring. The art was not to stop its progress downward to prevent the surrounding soil settling and gripping the shaft and preventing it going down further..
The Thames Tunnel is still in use today, its dimensions being large enough it is used for London Overground train services.
Okay. I really want one of these. I don't know what I'm gonna use it for - but I want it. Imma make so many shafts with this thing just for fun
I'd turn my city in to Swiss cheese if I had one of these xD
Can I borrow your machine once in a while to dig some holes for fun too?
I used to dig holes in my backyard just because I liked holes. This machine will make the job much easier.
@Finn Scott A shovel is good until you hit really hard ground.
Behold, the origin story of Mole Man.
Oh. So that is how you install an ICBM in a urban area without the public knowing.
or any rocket type launcher.
reality is not a movie you stupid fuck! i hate loser liek you who think the government is soem sort of evil institution that seeks to hurt its citizens!
you live in a fucking movie inside your head!
@@bent540 I think you need to learn the concepts of jokes and humour...
@@johanneslinnemann6660 dont be ignorant! he is dead serious!
@@bent540 And you know that because...?
Wow, this is a hell of an operation.
complicated and expensive. I wonder how dip it can reach.
Well now I know how I'll be digging my next shaft.
I admit, my shaft sinking equipment is quite minuscule compared, to this well endowed steel beast.
As long as it reaches the bottom of the hole is all that matters.
@@larrykeenan598 Most don’t like when you reach the bottom.
@@klincecum it depends on the way you bore the shaft in and at what pressure. and it may vary depending on the ground type too.
Does it rhyme to flash light?
@@ThekZnation to each boring has its own sedimentary makeup. So in some instances it may. But flash lights, are you mocking our las rifles?
My ass- the HOA was on me before I got down 50 meters!
Genius machine !
Much more simple than building all by excavator.
check out Bagger 288 build by Krupp. If u don't like excavating you need to see this :P
@Opecuted thats not going to cause any problems in a urban enviroment im sure
checkout rock melting acids
The guys on Oak Island need this!
I was going to make the same comment.
Not on a "reality show", they are milking it and getting tired of it.
Gotta love youtube recommendations
Careful what you comment on the net (or even near a smartphone microphone) . . they take note
@@benwinter2420 no shit your a regular genius huh
@@jonnie2bad My IQ will be higher than yours after I put you to sleep
These replies are looking mighty sus
That was really cool to watch. I love finding these gems on UA-cam!
I was part on the team that sank in the late 70’s at North Shelby in UK. North Selby Mine was started in November 1979 and completed in July 1986 with a shaft depths of 1032m (No1) and 1045m (No2). Whitemoor Mine was started in February 1980 and completed in June 1985 with a shaft depths of 931.6m (No1) and 941.7 (No2).
What a clean shot to cascade one layer of RCC, over other and sank it, I feel blessed that I have done civil engineering. There are so many wonderful machines made by humans, yet to be explored by me.
where you from planet MARS? :) There are so many wonderful machines made by "humans", yet to be explored by me.
as a technician i really understand you. it is somewhat satisfying to find these machines and seeing them demonstrated. even better when you had no idea they existed
I am not in construction, but the information contained in this video really brings to light a genius design. If I was in building tunnels and shafts, this thing would be my first pick, for it's mobility and what looks to me is a extremely smart design. All components serve a function and can be easily replaced, moved or supplemented. There is no wasting time and very few people are needed to making this work. As well as the ability of separating and cleaning the dirt, that's very cool! Genius!
Spectacular progress in shaft construction technology!!!
Brilliant, clever and shows how we have advanced since the days of Brunel!
brunel?
Hi check online M. Brunel was one the first ones to test a new "modern" underground approach under the Thames River.
This system of sinking vertical shafts was done by Marc Brunel (Isambard's father) in 1825 for works on the Thames Tunnel, obviously the digging was done by hand in those days.
Using a cast iron ring with a cutting edge at the base of the shaft, the shaft walls being of brick. As the shaft sank the bricklayers built new courses on top.
Congratulations to the inventor of this fantastic machine.
I'm pretty sure this was engineered and innovated, not invented. Maybe a few components were invented to be patented, but most of the machine probably can't be patented.
Now I will be really impressed if you can miniaturize it to drill 6" bore well's in remote locations without a big rig
You can bet I'll buy one of these on the very next Intercontinental Ballistic Missile Silo site I construct.
I got a shaft for you. And beavis and butthead would have a field day with this
"We are sinking, we are sinking."
"What are you thinking about?"
Thanks for reminding me this advert..it's just made my day. It's always amusing.
What are you sinking about?
Giant golf game
MAYDAY MAYDAY WE ARE SINKING
Best hole digging I've seen yet.
kinda want one now. no clue why they made this recommended, but i really like it. if i even need a shaft dug, ill call you guys.
Well, I am sold.
If I buy this through Amazon, I get two day delivery right?
This will take care of all my shaft needs for the next month or so...
Use a credit card that gives bonus miles ;)
The concept is wonderful. Brunel invented this system .
Isambard Kingdom Brunel. His full name is badass.
@@WojciechP915
The Thames Tunnel and the vertical access shafts were done by Marc Brunel, Isambard's father. Isambard was 18 at the time.
I won't buy this for my little garden (5x7 meters...) for sure 😀, but this was really a very interesting piece of technology to watch. Thanks an good luck, guys!
This is really cool and simple engineering. Genius
OK UA-cam...I may have no clue why you recommended me this - but since I watched it all, I guess you know me better than I know myself.
This is a modernized version of a Gold Dredge adapted to shaft construction. .
This is SPARTA!
Do they inject a bentonite slurry around the it to help control ground water
perfect for the high end prepper..
Exactly what I was thinking! Bunker please!
Yeah, I would love to know the operating costs of that machine.
@@kriswilson5305 and if it can cut through solid rock
I need it to make my missile silos. All my missiles in a big pile make them too hard to launch.
Foundation work uses a smaller version with a Soilmech excavator equipt with a Kelly bar. Steel casing instead of prefab concrete than it can be removed if called for and reused. Concrete piling with steel rebar is Tremme poured to exclude ground water.
I've been digging holes like that in the beach for sandcastle purposes for years now, but I have been doing it with a shovel. I want to upgrade my technique with some technology. What are your recommendations for vertical shaft digging tools that are human-powered?
Надо бар, иначе замучаешься зубки менять и не только
One of the best video why I’m here after 6 year 😢
Materiel louer ou acheter est repris par herrenk et reutiliser pour d'autre chantier comme pour les TBM , cadence journalier ????
Impressive technology! German ingeniouity at its finest 👍🏻🍻
7:38 why didn't this glass come up?
How do you maintain a perfectly horizontal sinking rate of the shaft?
The VSM is equipped with measuring devices for all of the movements, to have full control of the excavation. During the sinking of the shaft, the shaft lining is suspended by steel cables to the lowering units and these units does as well have integrated measuring devices to have full control while sinking. In addition the VSM is supplied with a vertical measuring system which are monitoring and displaying the verticality of the shaft lining all the time. The combination of the these measuring device ensures a full control of the shaft and the perfect position of the shaft all the time and till the end of the shaft installation.
Hope this helps.
Sorry for the delay.
Regards.
@@HerrenknechtAG Ok thanks for the explanation.
So it's like a reverse action 3d printer?
Taking away stuff under computer control instead of adding stuff.
Yep but much bigger
So whats to prevent this kind of system from boring down through the crust? Seems to me it should be able to continue on until it hits magma since its covered in water.
Never knew digging a hole was so complicated. Thank you internet.
I'm a nurse....This will come in handy.
Thanks UA-cam
I came from Lenny Henry talking about getting vaccinated.
@@JonSpink I'd been busy watching pipes being unblocked.
What a cool operation. That's using the brainpower at 100%
I built something like this in Space Engineers to mine with.
I'll be doing the exact same for my auto bunker system, haha
All those decommissioned US nuclear underground silo's flooded shortly . . doing stuff underground has issues
Hey HerrenknechtAG! Is this suitable to house my ICBM? Will the shaft walls withstand the high temperature rocket exhaust?
If we fill shaft with water, than it can withstand higher temperatures, infact during a launch they too uses water to dissipate hight temperature.
For vertically-launched missiles, there are cold launch systems that use gas from a separate gas generator (this gas can still be a few hundred degrees hot, but is cold compared to the rocket exhaust) to push the missile out of the launch tube, and it only ignites its engine once it is fully clear of the tube.
dang, digging straight down is a lot more complex in real life than in minecraft
blessed and then you do not curse. Karma ;-)
@@brianwilless1589 tf does this mean
If only I had the money I would buy one of these. GISSA JOB
Oh, and I will NOT be letting my dog watch this video...
Curse of Oak Island needs this! ;)
For when you need a really big septic tank call these guys after taco tuesday.
what a nice shaft. it so big and solid
the parking concept would work in a lot of locations that would otherwise not allow a above ground parking structure too be built ,or too replace existing ground level parking lots for increased parking volumes ,,, added security being below ground for low theft or vandalism
Cool. Perfect for an underground bunker
The double entendre is deep in this one.
Another application could be below-grade placement of nuclear power plants, instead of containment buildings that are above-ground. I note the current upper limit of 18 m on diameter, but maybe the new generation of Small Modular Reactors (SMRs) could be designed to fit within this constraint.
If you put an archemedies auger in the middle you could extract the spoil out the top.
#shaftsinkingmachine with so little delays from normally exhausting supply shortages
Digging is My passion!
cool... if it lives up its promises the reduced environmental impact is worth whatever the price differential with old school methods... does anyone know if it does?
i want to know drilling speed of this machine? (if diameter = 10m)
Good day, thanks for contacting us.
The sinking rate of an shaft with the VSM is linked to several parameters like, ground conditions, working time on job site and lining method. For more details please check our website (www.herrenknecht.com/en/products/productdetail/vertical-shaft-sinking-machine-vsm/) or contact us at pr@herrenknecht.com.
Regards.
I used to sink shaft years ago. My question is how is this device going to get through ground that is broken up so bad that the boulders are as big as apartment buildings. One little shift of material and the equipment is stuck and no amount of lubricant on the outside of the shaft will be able to allow movement. Love the machine for minimal shaft sinking though.
Poured the plug on a 3600 foot shaft years ago and this would never have been able to accomplish that depth. Pure sweat and muscle to get the job done.
Thanks for reaching out to us. You can read more about the Shaft Boring Roadheader (SBR) Technology from Herrenknecht which adapts the proven VSM technology to mining requirements. A full report is available under this link: aaom.herrenknecht.com/en/issue-13/.
The SBR was developed for the mechanized sinking of blind shafts in soft to medium-hard rock with up to 120 MPa and shaft depths up to 1,600 meter (5,250 foot). If you still have any further request, you can send us your request to the following e-mail address: pr@herrenknecht.de. Best regards. Herrenknecht AG
HerrenknechtAG, thanks for this video! This technology would be great for siting neighborhood modular nuclear reactors. Imagine a carbon-clean gas reactor serving your neighborhood with power and heat for 15 years without refueling.
Skip the thermoneucular and go right to groundwater based geothermal to service several users, using renewable greenpower for the electricness...the cheapest way to generate electricness. Plus, there are no lingering problems (many years of human generated radioactive type poisons). What's there not to like, unless you are a big or little corporate socialist capitalist .It's all here right now, and is very scalable as to size. IMHO.
Also great tech for nuclear waste disposal
this is my new nickname.
How deep can it go?
That's what she said
I don't know why I watched the whole thing when I got it in my recommended, but i'm not sure if I mind it.
Which softwares have been used for the 3d modelling and rendering in the animation part?
your mum
good question. it got a very nice animation flow and high quality textures as i remember them from our technincal 3d programs in technical school. just more fluid and able to animate much more at the same time
This video gave me a sinking feeling.
Why not used for gravity energy storage?
What does the strand jack do?
Excellent for installing automatic flood control...
There's a real thunderbirdesque feel to this.
Try digging on my property. I'm halfway down a volcano mountain that erupted over 100 years ago. The soil is embedded with lava rocks from hand size to as big as a small car. Digging around here with a hand shovel is absolutely impossible. I have a 35,000lb Case D1150 dozer/backhoe that the backhoe struggles to dig a hole. My son hit one of those big boulders, had to dig around it and then use the 4 yard [1 yard is 3ft cubed] bucket to push/lift it out and move it into the forest. It must have weighed as much as a GMC Duramax crew cab truck.
Keep going... all the way down to the infinite free 100° C endless geothermal heat in the crust..
Pretty cool technology. When I win the lottery and I want to build my dream doomsday home, I know who to call. A giant silo in the ground with a yurt on top to disguise it! Yeah, baby!
Wonder if there is a offshore rigg,or water tables above 100"
Какая красота!
2:05 has a mobile crain in picture but it is still magically lifted into the air.
The designer is a genius
Now I can build my dream basement. Ultimate man cave.
That's neat. You can put a rocket silo in downtown N.Y.C.
Ok. Your advertisement worked. I want one. Unfortunately I can't afford to pay and I have -zero- need for a shaft.
Very interesting video. Cheers!
Consider looking up Abilene Christian University Molten Salt Research Reactor - < 15 months to construct building with no special equipment. I do not believe it will take that long to construct these on small scale deployments. Please consider reviewing the following on youtube: Vertical Tunneling Boring - Vertical Shaft Sinking Machine (VSM) - 1-5 Meters per day - GE Steel Bricks - - Reactor Pressure Vessel is < 2.5 inches - here is an example of tech to manufacture stainless steel for nuclear - Holtec Discovery channel ... (I know this is not an RPV but an excellent example of how it could be done.) - Welding - local vacuum electron beam welding - Small Modular reactor
Thanks there,s some smart people out there.
Whats the typical use of the shafts that it sinks?
Depends on what the customer is paying for
They can be used as launch and reception shafts for tunnelling operations, access and ventilation shafts for traffic tunnels, or service and access points for all kinds of underground structures and buildings. Furthermore, special solutions such as inner-city, underground parking shafts (underground parking towers) or exploration and ventilation shafts for mining extend the range of applications of these flexible machines
I remember using that thing. Way easier then jet grouting and digging
Все года обходились заморозкой и чугуном, а тут на тебе, новшество!
А потому что пока совок десятилетиями пользовался старыми технологиями - буржуи их продолжали улучшать.
this will not work properly on the moon. it may be possible to use a modified version of this if a way to compensate for the fluid transport problem can be found.
Deutsche Ingenieurskunst. Respekt.
good, but will it take on any sizr boulder
Dear Bruce,
Maybe you can find some more details to answer your question on our product page here: www.herrenknecht.com/en/products/productdetail/vertical-shaft-sinking-machine-vsm/.
we hope this helps.
Best regards.
how deep can one of these things go? what temperatures can it operate in?
Dear Iorton 190,
we hope our product page can help with further details: www.herrenknecht.com/en/products/productdetail/vertical-shaft-sinking-machine-vsm/
Best regards,
Herrenknecht AG
@@HerrenknechtAG thank you very much
excellent engineering !!!!!
How much does a hole 🕳 cost?
A Preppers dream machine