Versatile mini digger from Doosan

Doosan says that its new DX85R-7 mini-excavator offers versatility and is the latest addition to the company’s next generation range of Stage V models.
May 26, 2023 Read time: 2 mins
Versatility is claimed for Doosan’s latest 8tonne excavator model

The 8tonne class DX85R-7 is a reduced tail swing (RTS) excavator designed to offer performance, stability, versatility, operator comfort, controllability, durability, ease of maintenance and serviceability according to the firm.

The DX85R-7 has an improved upper structure platform for durability and a different boom swing cylinder layout giving an increase in boom swing angle. Together the RTS design and boom swing angle mean the DX85R-7 suits work in confined spaces. The bucket digging force of the DX85R-7 is 6.7tonnes and this is combined with a traction force of 6.6tonnes, while travel speeds are 2.9km/h in the low range and 4.8km/h in the high range.

The DX85R-7 is powered by the Doosan D24 Stage V compliant diesel providing 48.5kW at 2100RPM. The machine is said to offer fuel efficiency as well as a power output and torque at low RPM. A combination of Diesel Oxidation Catalyst and Diesel Particulate Filter aftertreatment methods ensure compliance with Stage V regulations. The DPF offers a 25% increased ash cleaning period of 5000 hours compared to the DX85R-3.

The cab has a full glass entry door to maximise operator visibility on this side of the machine from inside the cab. The four standard high luminance LED work lamps on the cab further boost visibility. Protected by a FOPS, the machine has a rear-view camera as standard and an optional around view monitoring (AVM) 360° system offering a choice of five views on the display.

A new series main control valve (MCV) is utilised in the DX85R-7, improving performance by reducing the internal pressure loss, compared to the DX85R-3. The new MCV cuts energy wastage and pressure losses by over 40%, significantly reducing operating costs.

The DX85R-7 also offers improved lifting power and stability through a number of design changes, including the 127mm increase in the tumbler length, a redesigned undercarriage with lower ground approaching angle, an expanded rear swing radius and dual flange and double profile roller for both rubber track and steel track type shoes. Dozer improvements on the DX85R-7 have increased the jack up height/digging depth and the lift angle. A newly designed 1.45tonne cast counterweight also ensures machine stability when working.

The DX85R-7 mini-excavator has Doosan’s latest DoosanCONNECT system installed as standard, which provides a telematics management system for the excavator, by collecting data from sensors on the machine.

For more information on companies in this article

Related Content

  • Doosan’s DX140LCR-5 crawler excavator has reduced tail swing
    March 16, 2016
    Doosan’s new DX140LCR-5 15tonne reduced tail swing crawler excavator is powered by the Perkins 1204F engine, which combines reduced fuel consumption with the power and torque of larger engines with a smaller displacement. The new Perkins 1204F engine provides a 6% increase in power with an output of 85.9kW at 2,000 rpm and a 3% increase in torque. Swing torque has also been boosted by 28%. Trouble-free operation is guaranteed by meeting Stage IV emission regulations without the need for a diesel parti
    Read More
  • Versatile machines offer improved efficiency
    April 28, 2015
    An array of versatile new machines from different segments is available for the rental sector - Mike Woof writes The rental machine market continues to develop in many countries around the world. Equipment rental has a long history in the UK and the US and in more recent years has developed well in France also, while other countries are also benefiting from growth in this sector. As with other machines, equipment for the European and US rental sector now has to meet tough exhaust and noise emissions legi
    Read More
  • Innovative earthmovers coming to market
    October 12, 2017
    A wide range of innovative earthmover solutions is now coming to market - Mike Woof writes Generally with major construction equipment exhibitions timed for the second quarter of each year, this is when manufacturers will roll out their latest earthmoving solutions. However 2017 has turned out to be something of an anomaly, with the major firms continuing to unveil new models. Firms have introduced new wheeled loaders, excavators, and dozers, although arguably, some of the most interesting developments
    Read More
  • Doosan highlights new wheeled excavators
    February 5, 2015
    Doosan’s two new Stage IV/Tier 4 Final wheeled excavators are said to set a new benchmark for wheeled excavator design globally. The 17tonne DX170W-5 and 21tonne DX210W-5 models boast a distinctive new machine styling scheme common to all new Stage IV/Tier 4 Final Doosan machines. Launched earlier this month (February 2015), Both wheeled excavators are said to offer enhanced comfort and controllability together with new features to improve fuel efficiency, uptime and return on investment. There is also a f
    Read More

Highlighted Content