[narrator] A new breed of
super machines is evolving.
Bigger, faster, smarter,
built to tackle
near-impossible feats.
Among them: a mighty
mega digger.
>> It's amazing how tough
these machines are.
[narrator] It literally moves
mountains to unearth precious
copper and do what no normal
digger can...
>> We lose time, we lose money.
[narrator]...hit a quota
$18 million every month.
We'll blow this beast apart to
discover technological secrets
that overcome the impossible,
from precision gears that
swing 560 tons of metal
to a toughened cab strong enough
to deflect deadly boulders.
We'll reveal how this
extraordinary mega digger
evolved to rise above
all other machines.
North of Washington State,
in the Canadian wilderness,
lies Copper Mountain Mine.
Here, crews work around
the clock...
>> Attention, all mine
personnel, we have a blast
in progress.
[narrator]...to free around
$16 billion worth of copper
trapped in some of North
America's hardest granite.
>> Radio silence must be
maintained during the blast.
[narrator] Global demand for
copper is booming. It's used in
everything, from our computers
to vehicles and power networks.
Copper Mountain must supply
factories in Japan with
$18 million worth of copper
every month.
To hit this target, the mine
must run 24/7 in all conditions.
It's a relentless and daunting
task. A challenge this big...
>> OK. Good morning, guys.
[narrator]...needs an elite
crew of tough miners.
>> We'll go ahead
and get started.
[narrator] In charge is 14-year
mining veteran and shift
supervisor Matt Wells.
>> We might touch on some
high-grade later on today.
If that does happen we'll make
sure that gets to the stockpile
across from the crusher.
[narrator] To meet the delivery
target, Matt's shift must scoop
80,000 tons of copper ore
in four days.
>> Shovel 1, 12, 14, 16,
19, 20 and 21...
[narrator] They must make
the deadline to secure this
month's profits and keep
the mine running.
>> Have a safe day
and I'll see you out there.
[narrator] Digging the huge
volume of ore needed to hit
the copper delivery needs huge
machines. So Copper Mountain
Mine has two supersized
hydraulic shovels
for scooping rock.
30-foot tall,
830-ton mega diggers.
(honking)
Built from almost 40,000
components, their hydraulic
arms are as long as a school
bus and can lift 83 tons
of rock in one go.
Hardened steel tracks let these
monsters glide over treacherous
terrain.
Motors each the size of a car
burn up the electricity
of a whole town.
These titanic machines are
the kings of earthmovers.
The operators running Copper
Mountain's two mega diggers
must be the best of the best.
Pete Hartinger was born into
a family of miners. He's worked
at the mine for over 3 years
and earned a reputation
as a star digger operator.
>> There's ribbing that goes
on in any workplace. These guys
are going to be calling me
Hollywood.
Just don't even start, Chris!
>> You're Hollywood, man!
>> What did I tell you?
What did I tell you?
>> I'm just gonna call him
Hollywood.
>> This is where the money
is to be made.
[narrator] Pete needs to live up
to his nickname this shift.
>> Alright! Let's get going.
[narrator] He's got just four
days to shovel his 27,000-ton
quota of copper ore into a fleet
of waiting dump trucks.
>> It is time to get digging.
Time to do what we came here to
do. We are up here, literally
moving an entire mountain.
Dig it out of the face,
dump it into a truck.
[narrator] The dump trucks
continually feed the ore into
a mighty crusher. A conveyor
shuttles the smashed rock to
the mill, which turns it into
copper. The metal is hauled
to the port of Vancouver,
where it's loaded onto
a ship bound for Japan.
The critical ore is buried under
thousands of tons of waste rock.
>> Oh!
[narrator] Pete's first
challenge: scoop the junk
out of the way.
>> About five loads of
everything we move would be
waste rock
for one load of ore, which
is the pay dirt, and that's
what makes the money.
[narrator] It would take
a regular excavator upwards of
30 minutes to fill just one of
the mine's massive dump trucks,
but the mega digger's bucket is
specially designed to scoop huge
volumes of rock in record time.
Made from hardened steel, it's
big enough to hold a Hummer
and can rip out 83 tons of rock
in a single sweep.
A brutally effective design
borrowed from Nature's mightiest
digger: the mole.
Evolution dealt it an amazing
hand: a wrist bone has
transformed into an extra
claw, giving the paws
supreme digging power.
With such formidable tools, the
mole can tunnel 300 times its
body length in a single night.
The mega digger supersizes the
mole's paw. It also has six
claws, only 250 times bigger.
Harder than tank armour,
this bucket fills a monster
mine truck in just three loads.
>> The battle between the bucket
and the rock is a relentless
struggle. Done correctly,
the bucket wins every time.
[narrator] Pete's now halfway
through his first 12-hour shift.
His mega digger is still
track-deep in waste.
Pete must clear it and uncover
the valuable copper ore
by the end of the day.
>> 24 hours a day, 7 days
a week, 365 days a year,
this machine has to be
on its A game.
We're digging in the crust
of the earth here. This entire
mountain is one solid piece
of granite.
[narrator] In one shift, Pete
will smash his bucket through
the rock up to 1,500 times.
>> And driving it into the bank
with 250,000 pounds of force
puts a lot of torque and stress
and strain on that bucket.
[narrator] If the bucket breaks,
the mega digger will have to
shutdown for repairs and waste
critical digging time.
So the machine comes with
extra protection to withstand
the punishment...
hundreds of steel strips
called "wear pads" that provide
a thick layer of armour.
They form deep ridges that trap
tumbling rocks and literally
save the shovel's skin.
>> It's amazing how outright
tough these machines are, the
torture they can stand up to.
[narrator] Pete clears away
the last of the worthless waste
rock. But as the clock continues
to tick, a new challenge
now stands in the way.
The mine's other mega digger
must drive through thick mud...
>> We'll be right there, Jordy.
[narrator]...to escape
a mine blast.
>> We don't allow any person to
be within that exclusion zone.
Because even being hit by
a small rock can be dangerous,
but a large rock can be fatal.
[narrator] A slip up here...
>> We're going to have to start
going to your left a little bit.
[narrator]...could critically
damage the massive machine and
put the deadline out of reach.r,
Canada. Mega digger operator
Pete has just three days
to scoop 27,000 tons of ore
to feed the mine's mill...
so it can produce $18 million
worth of copper for export
to Japan.
>> Right now, the only thing
that matters is filling that
ship. It always matters, but
right now, it's quite critical.
[narrator] Shift supervisor Matt
must move the ore as fast as
possible. The mine's profits and
the jobs of its 360 workers
depend on it.
>> There's a lot of setbacks
in this business. Unfortunately,
in operations of these sizes,
it costs an astronomical amount
of money.
[narrator] If Copper Mountain
doesn't make its monthly
deliveries, everyone knows
history could repeat itself.
In 1996, the mine shutdown
after the previous owners
failed to turn a profit.
250 miners lost their jobs.
It reopened in 2011, after
a $438 million investment.
Today, the mine is under
constant pressure
to deliver returns.
>> We have to work as a team and
get these deadlines met because
yeah, failure is not an option.
We must meet these deadlines
in order to make money.
Go ahead, this is Matt.
[narrator] But making the
deadline is a huge challenge.
Matt must continually find and
uncover fresh deposits of copper
ore for the operation to stay on
schedule. He calls in blasting
supervisor Doug Johnston.
>> I've always had a fascination
a little bit with things that
go bang, such as firecrackers
and stuff. But I didn't realize
that I would end up having
a full-time career in it.
[narrator] Doug's team opens up
new copper deposits by blowing
the rock apart with almost
110 tons of explosives. But
before the blast, all machines
and personnel must move outside
a 500-yard exclusion zone.
>> We don't allow any personnel
other than the blasting crew
that's specifically there
to detonate the blast to be
within that exclusion zone.
Because being hit even by a
small rock can be dangerous,
but a large rock can be fatal.
[narrator] Copper Mountain runs
two mega diggers. The one inside
the exclusion zone is driven by
Tanya Syrota.
She's been digging at the mine
for more than 3 years, and
is one of its best operators.
>> Alright, here we go!
[narrator] Her challenge is
moving her machine from the
exclusion zone to safe area
on the other side of the pit.
>> It's a large machine so it's
not really meant to be walking a
long distance. It's sort of
meant to be in one spot digging
for a long time. So you kind of
stay in one spot, dig, and then,
when you have to move, you move.
>> OK. We're going to have
to start going to your left
a little bit.
[narrator] The ground is very
uneven. If Tanya's mega digger
bogs down, Matt will have to
haul it free with bulldozers,
eating up critical digging time.
>> Shovel 2 Tanya?
>> Hello, Matt.
>> OK, walk ahead.
>> OK, will do, Matt.
[narrator] But this mega digger
has secret weapons to tackle
the soft ground.
Two gigantic tracks spread
the digger's weight so
its pressure on the ground
is half that of a pushbike.
Each one is made up of 50 steel
pads. Together, they help the
mega digger glide over rough
terrain. They work just like
the ankle of a natural acrobat.
The clouded leopard has amazing
paws. Their flexible pads
adapt their shape to give
ultimate grip.
The ankle can also rotate
backwards to make impossible
climbing possible.
The digger's feet are just as
flexible. Their articulated
joints let them rock side
to side.
They should adapt to soft
terrain and get 830 tons
of digger away from
the blast zone - safely.
>> It's going good. It's going
fairly smooth. We've got our
ground guys working hard here.
We should be there in just
a few minutes.
[narrator] Tanya's mega digger
is 50 yards from safety.
But up ahead lies another
big obstacle: potholes hidden
in the uneven ground.
>> Wait a minute, you guys!
Woah, woah, woah!
>> We'll be right there, Jordy.
[narrator] If the mega
digger slides into a hole,
there's a danger its tracks
will be damaged.
>> They could potentially break
or snap, or you could lose a
track pad. Or the shaft breaking
in half, drive motor seizing up.
You'd pretty much be stuck right
where you sit until they come
and fix it.
[narrator] Matt would have no
option but to delay the blast
until the machine is repaired.
Tanya must put her faith in
an ingenious system that keeps
the mega digger's tracks firmly
attached.
Hidden in the undercarriage
is a track-saving device.
Two hydraulic pistons push
against each idler wheel with
almost twice the pressure
of a car crusher.
They keep the tracks firmly
braced against the chassis and
stop them from slipping off.
>> Alright. Where would you like
me to park?
>> Just pull off the face there
and we'll just set the bucket
down, and that'll be good.
>> OK, will do, Matt.
[narrator] Tanya and her mega
digger make it to the safe zone
in one piece. Doug makes final
checks to the explosives.
>> So I think now, what we need
to do is just move back to a
safe location. We'll view the
blast. It's a fun thing to do.
I expect a good show.
>> Attention, all mine
personnel. We have a blast
in progress. Radio silence must
be maintained during the blast.
[narrator] 470,000 tons
of ore and rock is about
to be blown sky high.
>> 5, 4, 3, 2, 1...
Preparing to fire the blast.
[narrator] The miners at Copper
Mountain, Canada, are racing the
clock. They have just three days
left to deliver a shipment
of copper to Vancouver.
>> Attention, all mine
personnel. We have a blast
in progress.
[narrator] Turning a profit
and keeping the mine open rests
on blowing apart new deposits
of ore.
>> Radio silence must be
maintained during the blast.
5, 4, 3, 2, 1...
Preparing to fire the blast.
(explosion)
There it goes.
[narrator] The blast frees-up
470,000 tons of copper-rich
rock. Time is now critical.
Shift supervisor Matt must
get the ore out of the pit and
to the mill to stand a chance
of making the shipment deadline.
>> We need to meet those
deadlines and we're not
quite there. The pressure's
definitely on.
[narrator] Mega digger operator
Pete gets to work.
His challenge: shovel up 25,000
tons of the highest-grade ore.
And he's got just 72 hours
to do it.
>> Our primary crusher is
a hungry bear. And it's
constantly needing feed.
[narrator] Pete must rely on his
mega digger's muscles to lift
this huge weight of rock.
Under the hood are two 2,000-HP
electric motors.
They drive pumps that move
the boom and bucket using
the power of liquid.
An idea that was at the heart
of London's Tower Bridge.
Deep in its bowels, two huge
steam engines slowly pushed
two gigantic weights 17 feet
into the air.
When dropped, they forced water
at pressure through a pipe that
drove a gear system which could
raise the bridge's 1,300-ton
decks in only 60 seconds.
Pound for pound, the mega
digger is even more powerful.
Its electric motors drive
eight pumps spinning at 1,400
rpm.
They force fluid through the
mega digger's arteries, at a
pressure 2,000 times greater
than the human bloodstream.
The high-pressure fluid moves
huge pistons to push and pull
the massive arm and bucket
with ease.
>> The hydraulic system is
really the heart and soul
of this machine. I can pick up
in one cycle four times what a
crew of miners could do in one
day a 100 years ago. It's a
remarkable feat of technology
to be able to do that.
[narrator] Pete and his mega
digger are halfway through their
second day on shift. They still
have 22,000 tons of ore to
shovel and their task has
just got twice as tough.
Lightly-coloured seams
of worthless rock crisscross
the mine. Pete must only scoop
the darker rock, containing ore,
and avoid the lighter rock.
>> We want the best quality
of ore going to the crusher.
And that's our main objective:
is to make sure that crusher's
fed and make some money
at the end of the day.
[narrator] Completing this
challenge now rests on Pete,
precisely controlling the mega
digger's bucket to separate ore
from worthless waste.
Right in the heart
of the machine...
is a group of 16 valves.
They control the flow of
hydraulic fluid with extreme
accuracy to move the 16-foot
pistons on the arm with
inch-perfect precision.
This way, Pete can put
77 tons of bucket exactly
where he wants it.
>> I use the bucket to reach
out and grab onto something or
scoop something up, the same way
I would use my hand at home
to reach out and grab onto
something. So in that sense,
it is just like an extension
of myself.
[narrator] Two days into their
shift, Pete and his mega digger
must still shovel 20,000 tons of
ore to meet the mine's shipment
target. But dangers lie ahead.
>> I've got more big boulders
in front of me here.
[narrator] Killer rocks
threaten to fall at any minute.
If they hit the mega digger,
they could damage the machine.
>> That is going to fall down.
And if I don't get it, it's
going to hurt something.
[narrator] At Copper Mountain
Mine, Canada, Pete and his mega
digger have 48 hours to scoop
20,000 tons of ore to make
enough copper to ship to Japan.
>> The deadlines get a little
more pressurized as the week
goes on. This week, we're
behind, so there's a little
more pressure.
[narrator] This job brings
constant danger. Pete sits
directly under an unstable
rock face.
>> Whenever I'm working near
a high wall there's always
a potential for material
to come down on me or near me.
Rocks tend to slide down the
bank and bang into each other.
They shatter and go flying off,
making airborne projectiles
that go everywhere.
Showers of fast-moving rock
smashing through the cab's glass
risks injury, even death.
Pete's first layer of defence
is at the front of his cab:
a sheet of glass
3/4 of an inch thick.
It's bomb proof, thanks to
lessons learned in the trenches.
In World War I, gas masks saved
lives. But glass eyepieces
made them vulnerable.
That was until an American
engineer inserted eyepieces
with two layers of glass
and plastic in-between that
survived the heat of battle.
A hundred years later,
this glass sandwich still
shields Pete from shrapnel.
Three sheets of hardened glass
take the impact...
and two layers of plastic stop
it from breaking into lethal
shards, even when Pete is under
attack.
>> I've been hit by objects
maybe a little larger than my
hard hat, that type of thing.
They haven't entered the cab.
The windscreens have always
stopped them.
[narrator] Super tough glass
protects Pete from small, fast
moving rocks. But now, a bigger
threat looms right above his
head: a huge boulder balanced
on top of the rock face.
>> I've got more big boulders up
in front of me here. I have to
be careful, because I got hit by
one. It knocks the hell out of
you and it damages the machine.
As fast as they want me to load
things, they'll be really upset
if I break something.
That is going to fall down.
And if I don't get it, we'll
have our back to it, with
the bucket out there, and
it's going to hurt something.
[narrator] The rock could smash
into the mega digger's cab
and threaten Pete's life.
Fortunately, Pete's cab is
almost indestructible.
Nearly 2,000 pounds
of steel plate over a cage
of strengthened tubes.
They create a wall of steel
that can take a hit from
a 500-pound boulder.
>> Sorry, I'm just watching that
boulder because I think it wants
to move when I'm not there
to catch it. There it goes.
That's why they give me
a big bucket. It's like a big
goaltender sometimes, you know.
[narrator] Pete's winning
the battle against the rock.
He and his mega digger have one
day left to shovel the remaining
11,000 tons of ore needed
to make the shipment target.
But there's trouble at the mill:
the copper ore it's receiving
is low quality.
Metallurgist Mike Westendorf
needs higher-grade ore
to stand any chance of making
the shipment deadline.
>> So right now, we have about
80% of the concentrate produced
which we need for the boat.
To get that last 20%, we'll
be talking with the pit to
rearrange their equipment
to get us some higher-grade ore
coming through the mill.
>> Hello, pit shifter Matt?
>> Yeah, go ahead, Mike.
>> Yeah, we're seeing our head
grade start to drop a little bit
here. Is there anything you guys
can do on your side to help us
out?
>> Yeah, that's no problem,
Mike. We'll check it out
for you and get back to you.
>> Thanks a lot.
[narrator] Shift supervisor Matt
needs Pete and his mega digger
to scoop the highest-grade ore
they've got.
>> Shovel 1 Pete?
>> Go ahead, Matt.
>> Yeah, Pete, can I get you
to just step over to your left
and we'll get into a straight
run of ore. And I'll send you
another truck.
>> Yeah, I'll move over right
away. Can you make it 2 trucks?
>> Yeah, we'll see what we can
do. We're under some pressure
here.
>> Alright, copy.
[narrator] Now into the last
12 hours of his shift, Pete
must pull out all the stops.
But mechanical problems
threaten to put his mega digger
out of action...
>> Without the swing system,
we don't go nowhere.
[narrator]...and destroy
the team's hopes of making
the shipment deadline.
[narrator] At Copper Mountain
Mine, Canada, Pete and his
mega digger have one shift left
to shovel 11,000 tons of ore
and make the copper shipment
leaving Vancouver.
>> And I'm actually feeling
the pressure from that
right now because I can tell
it's not moving anywhere
near fast enough.
[narrator] The mega digger's
next challenge is: swing back
and forth between the rock
face and dump trucks nonstop for
the next 12 hours.
But 560 tons of metal in
constant motion puts a huge
strain on the machine.
>> We have an undercarriage
underneath of us and a super
structure that sits on top,
rotating back and forth,
rubbing and grinding on the
undercarriage that is sitting
still. A lot of moving parts.
There's a lot of friction.
[narrator] Pete relies on
the mega digger's ingenious
design to prevent breakdowns.
Where the superstructure meets
the machine's undercarriage is
the ultimate wear-prevention
device.
A 45-foot slew ring filled
with steel rollers. Its origins
lie in an invention that
revolutionized timekeeping.
An 18th-century British
clockmaker invented a cage
filled with tiny metal rollers.
It cut friction in the swing
mechanism to almost zero
and made his clocks some of the
most accurate in the world.
The mega digger supersizes this
idea. Its upper body turns on
the slew ring's 500 manganese
chromite steel rollers.
Each one can bear 2 tons
of weight, reducing friction
to keep the mega digger
swinging all shift long.
>> The swing system is a
critical component of the
machine. Without swinging,
we don't go nowhere.
[narrator] The super-tough swing
system was born almost 5,000
miles away at the mega digger
factory in Dusseldorf, Germany.
Here, engineers fit giant
slew rings to mega digger
superstructures
in a delicate operation.
>> So it's quite a complicated
piece of equipment.
[narrator] The team must ensure
both parts join perfectly to
guarantee the system will work.
>> It has to be aligned
very precisely, because
during the production process,
very heavy loads will bear
on the slew ring.
During regular working
operation, it has to carry
570 tonnes of weight. That's
about two jumbo jets stacked
on top of the slew ring.
[narrator] It takes dozens of
skilled engineers nine months to
build just one brand new mega
digger. Accuracy is critical.
One mistake in construction
risks a breakdown while digging.
>> We've pre-drilled 154 holes
in the slew ring and 154 holes
in the superstructure,
so now we can see
if we did work correctly.
Yeah, bolt sticks, perfect. Our
crane operators did a good job.
And then, just 153 more to go.
[narrator] The engineers'
precision is now helping Pete's
mega digger inch closer to the
shipment target. The deadline
is just six hours away.
Their final task: shovel
the last 5,500 tons of ore the
mill needs as fast as possible.
>> It's always important
to work fast and efficiently,
whether the bosses are watching
or the bosses aren't watching.
I don't wanna be the one
to drop the ball.
[narrator] The mega digger
must cycle between rock face and
dump truck in under 30 seconds.
Beating the deadline
now rests on raw speed.
Between the superstructure and
undercarriage are
three hydraulic motors,
each the weight of an SUV.
Inside them, hydraulic fluid
moves seven pistons, pushing
with a combined power
greater than a sports car.
Each one locks into the slew
ring. They spin the 560-ton
superstructure through
a full turn in 22 seconds
and stop it on a dime.
>> It's remarkable. Using little
more than fingertip controls
puts the machine in motion
and stops the machine from
being in motion as readily and
easily as you switch channels
on a television set.
[narrator] Thanks to the mega
digger's speed, Pete stands a
fighting chance of making the
delivery deadline. But shift
supervisor Matt has bad news.
>> Shovel 1 Pete.
>> Yeah. Go ahead, Matt.
>> I just got word from the
office. They're going to have to
take the shovel down for about
an hour for some maintenance.
>> Copy that.
[narrator] The teeth of the mega
digger's bucket are badly worn.
>> The teeth are worn out here.
It's time to get rid of the
old and put on some new ones.
A little dental work as we call
it here in the mining industry.
[narrator] The maintenance crew
has just 10 minutes to get
the job done. At the same time,
electricians must extend
the mega digger's power cable
so it has enough slack for the
machine to reach fresh ore.
>> How are we making out?
>> Almost done.
>> Just about done?
>> Yeah.
>> Excellent! Fantastic job,
gentlemen.
[narrator] The crew finishes
the tooth replacement.
But something's wrong.
The mega digger has no power.
>> An electrical crew was adding
an extension to the power cable.
And they've hit a bit of a snag,
so we're a little bit behind
now. Nearly half an hour behind.
[narrator] No power cable means
no digging. The mill is still
short of the ore it needs to
make the $18 million shipment.
Making the deadline now rests
on getting the mega digger
back up and running. Fast!
>> Every minute counts.
We need to be on top of it
and do the best we can to
eliminate this downtime, because
it's costing us for sure.
[narrator] Digging has ground to
a halt at Copper Mountain Mine,
Canada. There's just
two hours left to shovel the
ore needed to make the shipment
of copper leaving Vancouver.
Operator Pete has been waiting
30 minutes for electricians
to reconnect his mega digger
to its power supply.
>> Half an hour doesn't sound
like a lot of time, but it
translates into 10 or 12
truckloads. And we normally only
get about 10 hours operating
time in a day, so half an hour
is about 5% of our operating
time gone.
[narrator] Fully-laden trucks
are already leaving the mine
bound for the coast. The clock
is ticking. The mega digger
must get back up and running to
stand any chance of making the
$18 million copper delivery.
Shift supervisor Matt
is feeling the pressure.
>> Right now, we're waiting.
We're well past our allotted
time now, so a little
frustrated. Because if our
equipment isn't running,
we're not making money.
[narrator] 45 minutes late,
electricians finally hook-up
the mega digger.
>> My power's on. We're finally
going to get going here.
Happy now. For now.
[narrator] Pete dashes
for the finish line.
>> OK. I'm operating away.
Doing my thing.
[narrator] A steady stream
of trucks continues to leave
the mill.
Pete loads the last of his ore.
The mill processes it
into copper.
And the last truck bound for
Vancouver leaves fully laden.
Matt's team has done all it can.
>> Shovel 1 Pete.
>> Yeah, go ahead, Matt.
>> Pete, good effort today.
I think we're going to make
the quota. Good job!
[narrator] The last trucks
arrive at the port of Vancouver.
They dump the copper onto
conveyors that load it
aboard the waiting ship
ready to set sail for Japan.
Copper Mountain has made
the deadline!
The mine's mega diggers beat
some of North America's toughest
granite and a gruelling schedule
to deliver $18 million of copper
and keep the mine running
for another month.
>> Very happy. Always happy when
we're making money. We had some
problems. It was a tough week.
A lot of equipment downtime, a
couple of incidents.
I go home for four days,
put my feet up, relax,
play with my kids, and we'll
be back for another four.
[narrator] Copper Mountain's
star digger operator heads
for some much needed R&R.
>> Drive safe, Matt.
Have a good weekend.
>> Thanks, Pete! You too.
I'm coming back in four days'
time. This time, it'll be night
shifts. We'll do it all again.
The same pressures, the same
targets, the same challenges.
I'll be back at it.
This mine runs 24/7, 365.
It doesn't take a day off ever.
[narrator] There's no rest
for Pete's mega digger.
It's still working, shovelling
ore with the next shift.
In one year, it'll scoop up
almost 14 million tons
of precious copper ore.
It's all thanks to an almost
frictionless swing system,
hydraulics with more horsepower
than two monster trucks,
unstoppable hardened
steel tracks,
a near-indestructible
steel cab...
and a bucket tougher
than tank armour.
It's these technological
secrets that have helped this
mega digger evolve to rise
above all other machines.
Subtitles: Epilogue Technical Services Inc.