hi everyone and welcome to the digndoze channel in this video we are going to look at the five earth
moving machines holding titles of the biggest most powerful and innovative in the world komatsu we235
formerly known as le turneau l2350 it is the most powerful and productive wheel loader in
the world and it holds the guinness world record for biggest earth mover
it has an operating weight ranging from 588 to almost 609 000 pounds and its
payload ranges from 120 to 160 000 pounds it can be powered by either 16 cylinder mtu
or cummins diesel engine which both have the same outputs of 2300 horsepower
this machine is equipped with the hybrid drive system which is fully regenerative during braking
or retarding electrical motors become generators and feed power back into the electrical system
this allows for up to 45 percent less fuel consumption than comparably sized mechanical drive
wheel loaders it is 20 feet 11 inches tall which is equal to 5 midsize sedans stacked together
the maximum travel speed of this machine is 12 miles per hour
if you want one of these monsters for yourself be prepared to pay at least 1.5 million dollars one
of its 13 foot tall tires alone would cost you 135 000 and with chains the price goes up to 265 000
caterpillar 24 the largest of the motor graders it is designed to build and maintain haul roads
while maximizing mine site productivity and helping to lower owning and operating costs
the weight of this monster is 161 hundred pounds and its length is fifty five feet which is equal
to three full size pickup trucks it is equipped with a 24 foot moldboard and its application
matched for medium to large mines running trucks over 180 metric ton payload it is powered by
the massive 12-cylinder caterpillar diesel engine which has an output of 752 horsepower
standard cat grade system with cross slope automatically controls one side of the blade
this improves operator productivity haul road quality and durability by helping maintain the
desired cross slope operators of this machine enjoy the latest cab comforts
which include two electro hydraulic joysticks that reduce hand and wrist movement up to 78
percent optional auto articulation allows the 24 to automatically articulate to match the steering
angle of the front tires improving performance komatsu d575a super dozer this is the largest and
most productive dozer in the world by a factor of nearly two it is primarily used in surface mines
and on some major road projects around the world it is equipped with the standard 90
cubic yard capacity super dozer blade which has a full range of movement three basic positions
dig carry and dump create previously unheard of levels of efficiency the d575a
can also move 90 cubic yards of material per pass using the standard blade it can dig to a maximum
depth of six feet nine inches using its single shank ripper it is powered by the 12-cylinder
komatsu diesel engine which has an output of 1150 horsepower the fuel efficient engine
together with the heavy machine weight makes it a superior crawler dozer in dosing production
scania axl a fully autonomous concept truck developed by swedish commercial vehicles
manufacturer it has no cab and is steered and monitored by an intelligent control environment
in minds for example the autonomous operations are facilitated by a logistics system that tells the
vehicle how it should perform it is powered by the combustion engine which is a perfect
example of how traditional and new technology is mixed scania engineers have built in many
security systems into this vehicle it includes three types of sensors seven cameras laser beam
proximity sensors which are installed at the front back and sides of the truck these systems
are essential to make sure the vehicle operates safely as there is no driver to stop it so it's
not science fiction anymore a lot of companies around the world are working in this direction
and eventually many industries that now rely on drivers and operators will be transitioning to
autonomous self-driving vehicles once the desired safety and performance targets are achieved
but of course to bring that to masses there should be solid programs in place preventing a surge of
unemployment among drivers and operators Tuen Mun Chek Lap Kok TBM the world's largest tunnel
boring machine launched in june 2015 by harenek in germany the machine has a diameter of 57.7 feet
8 inch more than bertha the previous largest tunnel boring machine it is as tall as a
six-story building or four double decker buses stacked together the total weight of this boring
monster is 4850 ton this machine produces a cutter head power of five thousand six hundred kilowatts
and twenty seven thousand seven hundred kilo newton of torque it was used to drill a three
point one miles tunnel connecting tunman to the hong kong international airport part of the tune
mun czech lap coke link project the dual subsea tunnels were bored up to 164 feet below sea level
the project began in october 2018 and was fully open to traffic in december 2020 the estimated
total cost of the project is almost 6 billion us dollars thanks for watching this video to the end
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