flowerfan2020
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India is good of making movies but reality always hits them hard.
A Chinese blogger writes: "I never thought that the Indian army could penetrate so deeply until this confrontation in 2020."
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Hamartia Antidote
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It's neither from China nor India
Herrenknecht - Wikipedia
Herrenknecht AG is a German company that manufactures tunnel boring machines, headquartered in Allmannsweier, Schwanau, Baden-Württemberg. It is the worldwide market leader for heavy tunnel boring machines.
Oh and as usual this was an American invention..not Chinese.
Hard-Rock Tunnel Boring Machines
The “invention” of a machine capable of excavating large-diameter tunnels in hard rock was one of the greatest achievements in the history of tunneling.
tunnelingonline.com
In 1952, James S. Robbins developed the first modern tunnel boring machine for the Oahe Dam Project in South Dakota. (Image from The Robbins Company.)
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flowerfan2020
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Indian claimed you are wrong. They said it made in India.It's neither from China nor India..you two fools just keep at it.
View attachment 929546
Herrenknecht - Wikipedia
en.wikipedia.org
Herrenknecht AG is a German company that manufactures tunnel boring machines, headquartered in Allmannsweier, Schwanau, Baden-Württemberg. It is the worldwide market leader for heavy tunnel boring machines.
Hamartia Antidote
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Like I should be surprised both of you tweedles got it wrong? Herrenknecht has a global presence so maybe they have a manufacturing branch in India but it is still a German company.
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GamoAccu
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TBM built in China for Indian project
A TBM built in China will be used for an Indian project.
2 More Tbms Arrive From China; To Be Deployed For 9km Twin Tunnels | Chennai News - Times of India
Two more tunnel boring machines that will be used to make twin tunnels in core city area have arrived in the city as CMRL is set to begin tunnelling
timesofindia.indiatimes.com
Indians say they use both Chinese and Indian made tunnel boring machines for the purpose. Where do you get the idea that they are using German made tunnel boring machines instead, proof ?It's neither from China nor India
View attachment 929546
Herrenknecht - Wikipedia
Herrenknecht AG is a German company that manufactures tunnel boring machines, headquartered in Allmannsweier, Schwanau, Baden-Württemberg. It is the worldwide market leader for heavy tunnel boring machines.
Oh and as usual this was an American invention..not Chinese.
Hard-Rock Tunnel Boring Machines
The “invention” of a machine capable of excavating large-diameter tunnels in hard rock was one of the greatest achievements in the history of tunneling.
In 1952, James S. Robbins developed the first modern tunnel boring machine for the Oahe Dam Project in South Dakota. (Image from The Robbins Company.)
So, where are American made boring machines in today's world competitive markets ? It's the Chinese company exporting tunnel boring machines to India today, not America.
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Try it, you fool, supa pawa Endia will be wiped out in that case.
Hamartia Antidote
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All I said is that there is a German company's name on the screenshot shown..which happens to be a famous boring machine company.
If you guys want to play a game of finding all the part numbers so you can figure out which percentage of them are manufactured in China/India..then go ahead. It's still a German company.
Here are some from the original Robbins company:
Has any "innovative" Chinese company successfully tried a different boring technique other than the rotating cutter wheel design Robbins pioneered back in 1952?
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-=virus=-
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you're a BD, aren't you ?
If that's the case Chinese boring machines use some German parts, so, even US stealthy fighters F 35 have Chinese made parts. If the current boring machines still work for the purposes, why would anyone have to invent new ones with different techniques. It's like asking people to invent a car with 3 or 5 wheels just to be different.
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Bilal9
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Nice buying an old HerrenKnecht machine from overseas, changing cutting teeth and painting the Indian tricolor on it. That too a tiny one for metros.
Dhokeybaaj people doing propaganda again.
It is hard to imagine a nation of 1.4 plus Billion people led by a dictator relying on propaganda shell games to convince his electorate that India is still a superpower despite lacking the capability to make simple civil engg. equipment like tunnel boring machines (TBM's). In the "SwarajyaMag" the laments of this are way too many.
Taking Tunnelling In India To Next Level: Challenges And Opportunities Beyond TBMs And NATMs
In cities where metro projects are being implemented, TBMs are being extensively used. Going forward, to take tunnelling to the next level, we must think of tunnelling methods beyond TBMs, NATMs and conventional methods, based on rock mechanics and properties.
swarajyamag.com
"There is a pressing need to indigenise tunnelling equipment as far as possible to increase the deployment of modern machinery, reduce the costs and cut short service timelines. Among the key equipment that should be made in India, Patil counts heavy-duty loaders, Liebherr excavators (for loose strata), telehandlers, grouting pumps, Schaeff loaders, drum cutters, hydraulic crawler drill machines, side-dumping loaders (such as the CAT 850 model), etc.
“We’re missing the indigenous production of semi and fully automatic drill jumbo machines, semi and fully automatic shotcrete machines for NATM tunnelling, advanced technology in TBMs manufactured for mining (such as advance probing and tunnel seismic prediction technology) and advanced equipment for cross-passage structure execution (to ease smooth construction in confined spaces),” says Ram Gopal Saini, Founder, Promoter and Director, Mega Metro Engineering.
No TBMs are currently manufactured in India. NONE.
I will not forget the face of that man behind the man in the front with the arm-sling. Poor guy was slapped so many times that he has started looking Chinese. War is hell.
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Bilal9
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TBM built in China for Indian project
A TBM built in China will be used for an Indian project.www.worldhighways.com
2 More Tbms Arrive From China; To Be Deployed For 9km Twin Tunnels | Chennai News - Times of India
Two more tunnel boring machines that will be used to make twin tunnels in core city area have arrived in the city as CMRL is set to begin tunnelling
View attachment 929548
So much for claims of being super power, buying essential equipment from declared mortal enemy....
Where is the pride?
Bilal9
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There is no TBM being made in India, NONE.
They import old Herrenknecht machines from Germany and refurbish them by changing the teeth and some drive components.
OTOH China has many companies building TBMs from scratch.
The one used in the first under-river crossing tunnel in South Asia (in Bangladesh) was a large 12m diameter unit.
Here are some other stories for China TBMs.
CREG - A Pioneer and Leader of China's TBM Industry - The Tunnelling Journal
China Railway Engineering Equipment Group Co., LTD (CREG) is a subsidiary of the pubic listed China Railway Engineering Corporation (CREC),...
tunnellingjournal.com
renhai
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We still suspect that it is made in China (OEM).It's neither from China nor India
View attachment 929546
Herrenknecht - Wikipedia
Herrenknecht AG is a German company that manufactures tunnel boring machines, headquartered in Allmannsweier, Schwanau, Baden-Württemberg. It is the worldwide market leader for heavy tunnel boring machines.
Oh and as usual this was an American invention..not Chinese.
Hard-Rock Tunnel Boring Machines
The “invention” of a machine capable of excavating large-diameter tunnels in hard rock was one of the greatest achievements in the history of tunneling.
In 1952, James S. Robbins developed the first modern tunnel boring machine for the Oahe Dam Project in South Dakota. (Image from The Robbins Company.)
Top Key Players of Tunnel Boring Machine Market
China Railway Construction Heavy Industry Co. Ltd. （China）
Herrenknecht AG
Dalian Huarui Heavy Industry Group Co. Ltd.（China）
Hitachi Zosen Corporation
IHI Corporation
Kawasaki Heavy Industries Ltd.
China Railway Engineering Equipment Group Co.Ltd.（China）
Komatsu Ltd.
Northern Heavy Industries Group Co. Ltd. (The Robbins Company Inc.)
Qinhuangdao Tianye Tolian Heavy Industry Co. Ltd（China）
Tunnel Boring Machine Market Growth, Size, Report to 2030
The global tunnel boring machine market size was worth USD 5,995 million in 2021, The Metro & Transit segment is the highest contributor.
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