Versatile, high performance excavator

Caterpillar's new 390DL excavator is said to delivers higher performance and increased durability over the 385C model it replaces. Power comes from an 18.1litre Cat C18 ACERT diesel, which delivers 390kW and features advanced electronic control, precise fuel delivery and refined air management. Upgrades to the 390DL's implement hydraulics allow the excavator to deliver greater digging and lifting forces than its predecessor. Increased breakout force promotes faster trenching and loading cycles plus stronger
February 13, 2012 Read time: 2 mins
Caterpillar's powerful 390D offers versatility with a factory fitted universal quick-coupler circuit available
178 Caterpillar's new 390DL excavator is said to delivers higher performance and increased durability over the 385C model it replaces. Power comes from an 18.1litre Cat C18 ACERT diesel, which delivers 390kW and features advanced electronic control, precise fuel delivery and refined air management. Upgrades to the 390DL's implement hydraulics allow the excavator to deliver greater digging and lifting forces than its predecessor. Increased breakout force promotes faster trenching and loading cycles plus stronger performance at the quarry face. In addition, lifting capacity over the end is increased by 14% with over-the-side capacity up nearly 14%. Also new in the 390DL's implement hydraulic circuits are electrically controlled regeneration valves, which assure rapid, positive response from the boom and digging arm cylinders while also significantly improving overall hydraulic efficiency. The benefits include quicker cycle times and estimated fuel savings of more than 2%.

The machine has an improved undercarriage with redesigned links that operate with lower stress, forged idlers for improved durability and heavy-duty track rollers and carrier rollers. In addition, the recoil spring has been lengthened, giving the recoil mechanism greater impact-absorbing capability to protect the undercarriage from shock loads. This is fabricated with thicker reinforcing plates at critical locations, while thicker plates are fitted at the boom-foot mounting in the upper frame as well as in the rails and bottom pan to accommodate the 12.4tonne counterweigh, which is 6% heavier than the 385C's counterweight. Booms and digging arms are also stronger while the high visibility cab has multi-mode controls and a full diagnostics capability for the operator.
Earthmoving & soil compaction

For more information on companies in this article

Related Content

  • Innovative solutions to earthmoving needs
    January 3, 2013
    Several manufacturers are offering improved earthmoving machines, with more to come - Mike Woof reports. One of the most notable developments comes from Caterpillar, with the unveiling of a hybrid excavator in the shape of its 336E H model. The machine is having its public launch at the bauma exhibition in Spring 2013 and will start rolling out of the factory in March 2013, while customers will be able to place orders from February 2013. Unlike other hybrid excavators on the market at present, the Cat 336E
    Read More
  • Caterpillar 318D L Series 2 hydraulic excavator
    April 23, 2013
    The new Caterpillar 318D L Series 2 excavator is said to include powerful hydraulics, a heavy-duty front end and enhanced operator comfort. Fitted with an economical Tier 2/Stage II compliant engine, the 318D L Series 2 model is also described as easy-to-service and capable of high production with low fuel consumption. With a net power rating of 82kW and operating weights to 17.3tonnes, the new model provides a choice of a boom and two sticks to best fit its application. As well as offering a high level of
    Read More
  • Cat makes the grade
    January 18, 2013
    The new Cat D6K2 Track-Type Tractor is said by Cat to deliver unmatched finish grading performance and improved fuel economy. Its new Stable Blade Control feature is said to utilise technology which complements operator blade control input, making it the best finish grading tractor in the industry. Eco Modes, both forward and/or reverse, is claimed by Cat to improve fuel economy by up to 22% depending on the applications for lower operating costs. The new D6K2 uses the Cat C6.6 ACERT engine that meets Stag
    Read More
  • Major improvements for wheeled loaders and excavators
    April 24, 2013
    Excavators and wheeled loaders benefit from new engine technology - Mike Woof reports. Competition is tough in the market for crawler excavators and wheeled loaders. These production machines account for a significant percentage of the entire construction equipment market worldwide and the segment also has the widest array of competing manufacturers. In the past, European, Japanese and US manufacturers dominated this sector but in the last 20 years South Korean companies have built significant market shares
    Read More

Highlighted Content