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Construction machinery: ten largest hydraulic excavators

July 11, 2022

There are many people who are particularly interested in "the world's best", and for construction machinery enthusiasts, it is fun to know all about "the best of construction machinery", whether it is the largest, the heaviest, or the most, whether it is an excavator or a loading machine. Machine, or mining card, this series will take inventory for you one by one. So let’s take a look at the top 10 hydraulic excavators in the world!

The sorting is mainly based on: working weight and reference power at the same time.

1. CATERPILLAR 6120B H FS

At MINExpo 2012, Caterpillar released this model of ultra-large hydraulic front shovel. The innovative hybrid technology is expected to reduce fuel consumption per ton by 25% through the use of hydroelectric regeneration technology and a unique energy storage system. This model only provides the front shovel structure, which can efficiently match the super large mining trucks.

ATERPILLAR 6120B H FS

The main technical data of 6120B H FS:
* Working weight: 1270 tons
* Total power: 3360kW (4500hp)
* Bucket capacity: 46-65 cubic meters

2. CATERPILLAR 6090 FS

In March 2010, Bucyrus acquired the Terex Mining Department. In November, Bucyrus was acquired by CAT for US$7.6 billion. Since then, RH400 has been owned by Carter and changed to 6090 FS.

CATERPILLAR 6090 FS

O&K launched the first prototype of the RH400 in 1997 (working weight is 830 tons). 6090 FS is powered by two Cummins QSK60 diesel engines (2-stage, 16-cylinder, turbocharged), with a fuel tank capacity of 15,100 liters, a central automatic lubrication system, a 5-circuit hydraulic system, and the propulsion mechanism is a powerful triangle mechanism created by O&K ( Other brands are mostly three-cylinder linkage), the maximum digging height reaches 20.2 meters, the bucket excavation force is 3300kN, the bucket crushing force is 2400kN; the standard track shoe width is 2 meters, the maximum moving speed is 2.2km/h; the rotation speed is 4.0rpm. 6090 FS can choose electric drive form (supply voltage 6600V, output power 3200kW). This model only provides front shovel structure.

6090 FS main technical data:
* Working weight: 980 tons
* Maximum power: 3360kW (4570 horsepower)/1800rpm
* Bucket capacity: 50 cubic meters (load 84 tons)

3. HITACHI EX8000-6

It is Hitachi's largest hydraulic excavator. The first EX8000 was successfully developed in March 2004. The operating weight of the EX8000-6 has exceeded 800 tons. It is equipped with two 16-cylinder Cummins QSK60C diesel engines with a displacement of 60 liters, with a fuel tank capacity of 14,900 liters. The track width is 1.85 meters, the maximum walking speed is 2.0 km/h, the maximum digging height is 20.5 meters, the rotation speed is 3.2 rpm, and the joystick touch type electronic control mode. This model currently only has a shovel model.

Main technical data of EX8000-6:
* Working weight: 811 tons
* Maximum power: 2×1450kW(3888hp)/1800rpm
* Bucket capacity: 40 cubic meters (load 62.5 tons)

4. LIEBHERR R9800

In order to cater to the trend of large-scale mining equipment, Liebherr launched a new hydraulic excavator flagship model R9800 in 2008, which provides two types of front shovel and backhoe. R9800 can be installed with two Cummins QSK60 or MTU 12V4000 Tier 2 diesel. The engine, the fuel tank has a capacity of nearly 20,000 liters, a track shoe width of 1.63 meters and a rotation speed of 3.6 rpm, which can be used to load trucks of 220 tons and above. R9800 is currently the world's largest hydraulic backhoe excavator.

Main technical data of EX8000-6:
* Working weight: 811 tons
* Maximum power: 2×1450kW(3888hp)/1800rpm
* Bucket capacity: 40 cubic meters (load 62.5 tons)

5. KOMATSU PC8000-6

After Komatsu acquired Demag, H685 became PC8000. This is the top model of Komatsu hydraulic excavators. The latest is PC8000-6. There are two forms of diesel drive and electric drive. They are two Komatsu SDA16V160E-2 Tier 2 diesel engines or 6600V AC (motor power 2900kW) as power, and fuel tank The capacity is 13,500 liters, the track shoe specifications are 1500mm and 1900mm in width, and the maximum travel speed is 2.4km/h, which can match 240 short tons and larger trucks.

KOMATSU PC8000-6

Main technical data of PC8000-6 (Zheng Shovel diesel version):
* Working weight: 777 tons
* Maximum power: 2900kW (3888hp)/1800rpm
* Bucket capacity: 42 cubic meters (48 tons)

6. DEMAG H740 OS

H740 OS is a branch product of H655S series and only one has come out. It is a machine specially designed for mining high abrasive oil sand mines. It was put into use in oil sand mines in North America in 1999. H740 OS is equipped with two Cat 3516B diesel The engine has a maximum digging force of 2320kN.

Main technical data of H740 OS:
* Working weight: 740 tons
* Maximum power: 3280kW (4400hp)
* Bucket capacity: 40 cubic meters

7. LIEBHERR R996

R996B adopts modular design, all components can be easily transported. It is equipped with two Cummins K1800E heavy-duty 16-cylinder turbocharged diesel engines with a fuel tank capacity of 13000 liters and a rotation speed of 3.5 rpm. The bucket shape has been improved to improve wear resistance. Sex. This model also provides an ARCTIC version for use in alpine regions, with a working environment temperature range of -40 degrees Celsius to 50 degrees Celsius. R996B can be matched with trucks of 220 tons and larger.

R996B main technical data (front shovel):
* Working weight: 676 tons
* Maximum power: 2240kW (3004hp)/1800rpm
* Bucket capacity: 34 cubic meters

8. CATERPILLAR 6060

In March 2010, Bucyrus acquired the Terex Mining Department. In November, Bucyrus was acquired by CAT for US$7.6 billion. Since then, RH340 has been owned by Carter and changed to 6060. This model is also a dual-engine power system, using two CAT 3512C or Cummins QSK45 diesel engines, with a fuel tank capacity of 11160 liters, a standard track shoe width of 1400mm, and a maximum moving speed of 2.0km/h. This model has two structures, front shovel and backhoe.

6060 main technical data (backhoe):
* Working weight: 565 tons
* Maximum power: 2240kW (3000hp)/1800rpm
* Bucket capacity: 34 cubic meters

9. KOMATSU PC5500-6

After Komatsu acquired Demag, H455 was renamed PC5500. The PC5500-6 is equipped with two Komatsu SDA12V159E-2 diesel engines, as well as an electric version (1800kW) that uses 6600V AC. It has 1350mm and 1800mm width crawlers. The maximum travel speed is 2.1km/h and the fuel tank capacity is 10800 liters.

PC5500-6 main technical data (backhoe diesel engine version):
* Working weight: 549 tons
* Maximum power: 1880kW (2521hp)/1800rpm
* Bucket capacity: 29 cubic meters

10. HITACHI EX5600-6

The EX5500 series was launched in July 1998, and its replacement product EX5600 was released in February 2012. The bucket capacity of the backhoe EX5600-6 increased from 29 cubic meters to 34 cubic meters, and the front shovel bucket capacity increased from 27 cubic meters. The meter has increased to 29 cubic meters. The EX5600-6 uses two Cummins QSK50C engines, which have improved power, emissions (Tier-2) and cooling performance.