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Amphibious C Series takes to the
water
Amphibious Valtra C Series tractor and a boat
on a lake.
A specially equipped Valtra C150 cuts through the waves on
a lake with a trailer in tow. From afar the tractor and
trailer combination look totally normal. What makes it seem
all so surreal is that a motorboat is keeping up alongside,
meaning that the water there has to be pretty deep.
The
guys at product development company Pekeija Ltd in Finland
have years of experience of tractor work in peat bogs.
Tractors are used to gather up the peat, which when dried can
be used as fuel for power stations. A cultivated peat bog can
easily carry a tractor equipped with dual wheels, but working
on new bogs is a wet business. The bogs can be so wet that
they cannot even carry the weight of a person. Nevertheless,
drainage ditches have to be dug and the odd tree
removed.
Pulling out a tractor that has sunk into a
field or bog is not fun. The guys at Pekeija know this, so
they decided to build a tractor that would, quite simply, be
unsinkable.
“No one believed at first that a tractor
could be driven on water, but we have proven it possible. We
have already driven 60 hours of testing and demonstrations on
waters with our specially built Valtra C Series. By the summer
we hope to have a floating T Series as well,” says Eija
Hiltunen, Managing Director of Pekeija Oy.
What is most
remarkable about Pekeija’s floating Valtra is that the
amphibious equipment does not affect the use of the tractor on
dry land whatsoever. The pontoons that keep the tractor afloat
are hidden in the rims of the dual wheels and between the
chassis and tyres. In addition, all the air intakes, oil
cooling ducts and other holes have been raised up. The
electrical equipment has been fully insulated, as has the cab
and other areas sensitive to water. Work safety regulations
require that the cab be fitted with an escape hatch in the
roof. In addition to standard road equipment, the floating
tractor is also equipped with various maritime specifications,
including a red light on the port side and a green light on
the starboard side.
“The tractor is stable in the
water. A big man could jump up and down on one of the double
tyres, and it still would not rock the tractor,” claims
Hiltunen.
The dimensions and ground clearance of the
tractor remain standard despite the extra equipment. In the
water, the tractor travels forward using either its tyres,
which act like the paddles of a riverboat, or a special
outboard propeller. This is attached to the front of the
tractor and is powered by a hydraulic motor. It is controlled
from the cab using a joystick. On dry land the propeller can
be lifted upwards. The floating tractor is faster through the
water with the propeller – and easier to drive – than with
just the tyres alone.
“The Valtra C Series is the
perfect base for floating tractors. It has an ideal weight
distribution and quality components that are well situated. A
tractor’s weight distribution and balance are very different
in the water than on dry land, where it sits on four wheels,”
Hiltunen explains.
Pekeija’s amazing floating tractor
has already been featured in several international tractor
magazines, which has aroused interest the world over. For
example, the company has been contacted by a Canadian
entrepreneur who harvests cloudberries and cranberries on
bogs, by Nordic peat moss farmers, and by contractors who
clear power lines. Many commentators have suggested military
applications. Other potential users who have shown a lot of
interest include contractors who drive on the ice in winter to
clear roads for other vehicles; the floating tractor is an
obvious safety factor should the ice break. Floating tractors
would also be ideal for rescue work in flooded areas. Perhaps
the biggest potential customer segment consists of farmers who
cultivate land on islands – and there are many of these in the
world!
“One of our floating tractors has been ordered
by a contractor who clears the overgrowth of grass and
sediment on the bottom of lakes and waterways. A special
cutting implement will be attached to the tractor, along with
a trailer and dredger. Suction dredging is also possible with
the floating tractor. The sediment could then be transported
to dry land on the trailer.”
Biodegradable and
environmentally friendly fluids and oils are used in the
tractor and implements, just in case any should leak into the
water. The floating tractor can otherwise use implements
normally, both in and out of the water. The PTO offers 150
horsepower, and the hydraulics produce 91 litres per minute –
the same as on dry land.
“Our floating tractor has been
patented and fulfils all EU requirements for vehicles and
vessels. When people see the tractor floating on a lake, they
are at first amazed and then amused. This is not a toy,
however, but rather a versatile and powerful machine for
work,” Hiltunen concludes. Amphibious Valtra C Series tractor is ideal
for working on a wet, new peat
bog.
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