Skip to main content

Doosan’s high performance, heavyweight excavator

Doosan is introducing a high-performance, heavyweight crawler excavator in the shape of the DX800LC-5B. This machine is aimed at the 80tonne crawler excavator class in emergent territories and is said to offer optimum value to the end-user. Advantages are said to include high productivity and fuel efficiency, as well as operator comfort, improved reliability and durability and maximum uptime. It is designed to meet the needs of heavy-duty quarrying applications as well as major infrastructure construction projects.
February 21, 2020 Read time: 3 mins
Doosan is offering its powerful DX800LC-5B excavator to markets such as construction and quarrying

The machine has a long crawler design, combined with a wide undercarriage expanded for optimum stability and safety in digging, lifting and loading applications.

Built with proven main components and offering a robust design, the DX800LC-5B is said to allows customers to work in time-critical operations, with a minimum of downtime. Its components are said to be customised for use in large equipment, delivering high power, productivity and durability.

Power comes from a new 358kW diesel and the machine also benefits from a comprehensive advanced and intelligent hydraulic system (ecoPower).

The DX800LC-5B features an Electronic Control Unit, which optimises engine performance to deliver maximum fuel efficiency. The ecoPower technology is said to further optimise the hydraulic system and utilises an electronic pressure-controlled pump. This is within a closed centre hydraulic system, boosting productivity and lowering fuel consumption. A closed centred main control valve minimises pressure loss, while the electric pressure-controlled pump is said to manage and optimise engine power.

The ecoPower system uses sensors to detect the quantity of hydraulic oil necessary to accomplish a specific task and precisely control the system. This is instead of continuously forcing a fixed amount of oil through the system.

Software is utilised to electronically reproduce the full benefits of an open centre hydraulic system with little energy loss. The hydraulic system and engine power are optimised and synchronised, further reducing losses within the system. This ensures that the high hydraulic flow of 1008litres/min from the hydraulic pump is shared efficiently, producing fast cycle times and allowing high productivity levels.

The DX800LC-5B has a spacious operator cab, equipped with ergonomic controls and instrumentation. Meanwhile, noise is minimised by improved sealing of the engine compartment and extensive use of sound-dampening materials.

Operators can be more productive and work more effectively at night with high-quality LED work lights and an Around View Monitoring (AVM) system provides a 360° view from the cab.

All components and assemblies are designed, built and tested to ensure durability. Multistage filters and features such as track guards, the auto grease system and greased and sealed track links are designed to provide superior reliability and a long service life. The DX800LC-5B is easy to maintain, further reducing downtime.    

To ensure that the DX800LC-5B is ideal for working on tough applications, the machine is equipped with a reversing fan, to make sure that the cooling systems are always operating optimally.

For more information on companies in this article

Related Content

  • Latest loader innovations
    January 21, 2025
    A range of loader innovations is coming to the wheeled loader segment – Mike Woof writes
  • Increased output, productive ADTs and excavators
    February 29, 2012
    Productive performers provide increased output for customers in the loading and hauling sector of the earthmoving market - Mike Woof writes. Loading and hauling machines play key roles in earthmoving operations, with the excavator and ADT combination proving both versatile and productive. While machines such as scrapers may be more efficient in specific earthmoving applications, these do not offer the versatility of the excavator and ADT combination, reducing utilisation.
  • Bobcat’s new E25 2.5tonne compact excavator
    May 28, 2013
    The weight distribution in Bobcat’s new E25 reduced tail swing (RTS) compact excavator is said to be optimised through the use of proven ‘4-plate box’ technology to reduce he weight of the workgroup, which moves the centre of gravity of the machine towards the back of the excavator. As a result, the E25 does not require any additional counterweight. This enhances the stability and ensures that the E25 model can be transported by trailer more easily.
  • Doosan’s new 40-50tonne excavators offer greater fuel efficiency
    February 4, 2015
    Ideal for quarry-based applications, the new Doosan 40-50 tonne DX420LC-5, DX490LC-5 and DX530LC-5 are the company’s largest Stage IV/Tier 4 Final compliant crawler excavators. The operating weights of the DX420LC-5 and DX490LC-5 have increased by 700kg and 500kg respectively compared to the previous LC-3 models. Lifting capacities have increased by an average of 5% on all three models, except for the DX530LC-5, where the lifting capacity over the side has also increased by 12%.