• 10/30/22 2:34 pm
- 522 views • 0 today
- Progress
- 100% complete
- 16
- 5
155
Komatsu D575A
From Wikipedia, the free encyclopedia
Jump to navigation
Jump to search
| Komatsu D575A | |
|---|---|
 A Komatsu D575 pictured with a man leaning against the push arm. | |
| Type | Bulldozer/ripper (D575A-3) Bulldozer (D575A-3 SD) |
| Manufacturer | Komatsu Ltd. |
| Production | 1989-2012 |
| Length | 38 feet 5 inches (11.71 m) |
| Width | 24 feet 3 inches (7.39 m) (width of standard blade) |
| Height | 16 feet 0 inches (4.88 m) |
| Weight | D575A-3 - 131,350 kilograms (289,580 lb) D575-A3 SD - 152,600 kilograms (336,400 lb) |
| Propulsion | Tracks |
The Komatsu D575A is a 1,150 horsepower (860 kW) tractor crawler produced in a 'SR' or Super Ripper bulldozer/ripper configuration, or as a dedicated bulldozer in the form of the 'SD' or Super Dozer.[1] Both models can move 90 cubic yards (69 m3) of material per pass using the standard blade. The D575A-3 SD Super Dozer can move 125 cubic yards (96 m3) of material per pass if equipped with an optional blade.[2][3] The D575A-3 can dig to a maximum depth of 6 feet 9 inches (2.06 m) using its single-shank ripper.[4]
Commonly referred to as the 'world's largest production bulldozer', the D575A series bulldozers were produced by Komatsu Ltd. in Osaka, Japan.[4][5] Surface mine
operators in the United States, Australia and Japan were the primary
users of the D575A, although they were sometimes used in heavy
construction applications and quarries as well.
Contents
Development
Komatsu first showed a 1,000 horsepower (750 kW) bulldozer prototype, the D555A, to the public at the Conexpo equipment exhibition in Houston, Texas
in 1981. Due to economic conditions at the time, development was
stalled for much of the 1980s. A successor to the D555A prototype, the
D575A-2 SR Super Ripper, began field testing in North America in 1989 by
the Cooney Brothers Coal Company in PA where over 1000 hours were
logged. Prototype machines are also believed to have been tested at the
Harrison Coal and Reclamation Park. Full production began in 1991.[4][6]
The first production machine, delivered in 1992, was initially trialed
in PA where the prototypes tested. The first machine was built up by
Anderson Equipment Company and then sold to American Asphalt and Paving
Company where it initially worked in Las Vegas. The D575A-2 SR Super
Ripper was joined by the D575A-2 SD Super Dozer in 1995. The first
D575A-2 SD Super Dozer was purchased and placed into service by the
Princess Beverly Coal Co. in Cabin Creek, West Virginia.[3] The updated models, the D575A-3 and D575A-3SD Super Dozer were introduced in 2001.[3][4]
Series
The first
series of D575A bulldozers were the D575A-2 machines. These were
produced in both SR 'Super Ripper and SD 'Super Dozer' configurations.
These models were produced between the years of 1991 and 2000 and 41
machines were built. In 2001 the D575A-3 machines were introduced. These
were produced in both SR 'Super Ripper and SD 'Super Dozer'
configurations. They wore a new trade dress however most of the upgrades
were electronic. Upgrades included features such as the 'Palm Command
Control System', smooth and soft operation modes, ECMV controlled
transmission, ECMV controlled transmission steering clutches/brakes,
preset travel speed selection function and auto-shift down function.
Upgrades made within the cab also included a new suspension seat and
upgraded displays and monitoring systems. These models were produced
between the years of 2001 and 2007 and 11 machines were built. In 2012, a
custom order was placed by Alcoa in Australia and a final machine was
built taking the total A3 build number to 12.
Production
All
Komatsu bulldozers are identified by the letter D (for Dozer) followed
by the model number (575A). Following that, the series is represented
(-2 or -3) and finally the configuration (SR or SD). Each machine had
its model number and serial number stamped onto a personal
identification plate that was located inside the cab. Serial Numbers
10001 – 10043 were A2 machines. Serial numbers ceased at 10043 and
started back up at 10101 when the A3 series machine production begun.
Serial Numbers 10101 – 10112 were A3 machines. Serial numbers 10004 and
10013 were not produced due to the bad luck associated with both numbers
(#4 and #13) in Japanese culture.
Production numbers were as follows:
D575A-2SR = 17 machines
D575A-2SD = 24 machines
D575A-3SR = 2 machines
D575A-3SD = 10 machines
Total -2 Machines = 41 machines
Total -3 Machines = 12 machines
Total SR machines = 19 machines
Total SD machines = 34 machines
Overall total = 53 machines
Specifications
A 12-cylinder, four-stroke, water-cooled, direct injected, turbocharged, intercooled, 1,150 horsepower (860 kW) Komatsu SA12V170E diesel engine powers the D575A-3.
The D575A-3SD measures 16 feet 0 inches (4.88 m) tall, 38 feet 5 inches (11.71 m) long has a ground clearance of 2 feet 5 inches (0.74 m).[2]
The D575A-3SD features a Super Dozer blade designed to dump, dig
or carry that measures 11 feet 11 inches (3.63 m) high and 24 feet
3 inches (7.39 m) wide. It has a capacity of 90yd3 (69m3).
The D575A-3 could be optioned with a Semi-U blade or a U-dozer
blade. Either could be ordered with single or dual tilt cylinders. The
Semi-U has a capacity of 44.5y3 (34m3) while the U-dozer blade has a
capacity of 58.8yd3 (45m3).
The D575A-3SD has a ground contact area of 101.55 square feet (9.434 m2) and exerts an average ground pressure of 23 pounds per square inch (160 kPa).[2]
The D575A-3 Super Ripper weighs 289,570 lb (131,350kg). The D575A-3SD weighs 336,420 lb (152,600kg).
Applications
From
new, North American companies purchased 31 machines, 14 machines were
sold to Australia and 8 machines were sold within Japan. Within the
United States, the D575A bulldozers were primarily used in surface mines
in West Virginia, mostly operating for Alpha Natural Resources
and Horizon / Princess Beverly Coal on mines in Appalachia. At one
stage, 17 D575A's were in service in the West Virginia Coal Fields. In
Australia, machines were used in surface mines and on some major road
projects across the country. The majority of the machines sold within
Australia were Super Ripper. Alcoa, located in Western Australia
purchased 5 machines and used them to rip large areas where they
couldn't blast due to the proximity to residential housing and they were
often operated by Remote Control. 8 machines were sold within Japan
working in quarries with many being owned by Fujisaco Co. LTD. Two
second hand D575A-2SD machines (ex Australia) were sold to Kaipara
Limited (New Zealand) and with the help of Komatsu Australia, had
rippers retrofitted to the machines. The machines were operated out of Stockton coal mine in the West Coast
region of New Zealand's South Island. These machines were used to rip
above areas where abandoned mine shafts existed and were also often
operated via Remote Control.
Models
D555A (Prototype)
The D555A prototype was first shown to the public in 1981 at the Conexpo
equipment exhibition in Houston, TX. Due to economic conditions at the
time, development was stalled for much of the 1980s. A successor to the
D555A, the D575A-2 SR Super Ripper began field testing in 1989 and was
the first model to enter production beginning in 1991.[6]
D575A-2 SR Super Ripper dozer/ripper (Discontinued)
The
D575A-2 SR Super Ripper was the first production version of the D575A,
going into production beginning in 1991. It produced 1,050hp (784kw).
The D575A-2 SR Super Ripper included a single shank ripper capable of
digging to a maximum depth of 6 feet 9 inches (2.06 m).[4] The D575A-2 SR Super Ripper was superseded by the D575A-3.
D575A-2 SD Super Dozer dedicated dozer (Discontinued)
The
D575A-2 SD Super Dozer was the second version of the D575A, going into
production alongside the D575A-2 SR Super Ripper beginning in 1995.[3]
The D575A-2 SD Super Dozer is an 1,150 horsepower (860 kW), 143,300
kilograms (315,900 lb) dedicated dozer with no ripper. The D575A-2 SD
Super Dozer was superseded by the D575A-3 SD Super Dozer.
D575A-3 SR dozer/ripper (Discontinued)
The
D575A-3 is an 1,150 horsepower (860 kW) dozer/ripper weighing 131,350
kilograms (289,580 lb) and capable of moving up to 90 cubic yards (69 m3) of material per pass. The single shank ripper has a maximum digging depth of 6 feet 9 inches (2.06 m).
D575A-3 SD Super Dozer dedicated dozer (Discontinued)
Introduced
in 2001 as the successor to the D575A-2 SD Super Dozer, the D575A-3 SD
Super Dozer is a dedicated dozer with no ripper weighing 152,600
kilograms (336,400 lb). Equipped with a standard blade, the D575A-3 SD
is capable of moving up to 90 cubic yards (69 m3) of material
per pass, however, when equipped with an optional blade, the D575A-3 SD
is capable of moving up to 125 cubic yards (96 m3) per pass.
The D575A-3 SD includes major changes to the frame, powertrain,
undercarriage, and blade, making it substantially different from the
D575A-3.[3]
In comparison to its predecessor, the D575A-3 SD includes a
significantly re-designed operator cabin and powertrain electronic
control system to increase productivity and a number of durability
improvements including reinforced undercarriage roller guards, simpler
hydraulic plumbing and longer-life hoses, seals, wiring harnesses, and
connectors.[7]
Transportation
Due
to its immense size, the D575A must be broken down into component form
when it is moved from one job site to another. Moving all the components
requires six to eight truck loads depending on local laws.[5]
More like this
DreamWanderer
fedotir
CraftyFoxe
Maplesryup
5755360
2
ItsMickey
Have something to say?