DOOSAN has taken the wraps off the new DX85R-7 eight-tonne Stage V mini-excavator.
The reduced tail swing (RTS) model utilises an ‘improved’ upper structure platform which Doosan said offers increased durability and robustness, and a different boom swing cylinder layout resulting in an increased boom swing angle of 60o.
The digger is described as ‘ideal’ for work in confined spaces. The bucket digging force is 6.7-tonne and this is combined with a traction force of 6.6-tonne. Travel speeds are a mobile 2.9 km/h in the low range and 4.8 km/h in the high range.
As well as sharing the new global styling common to all new Doosan mini-excavators from two to 10-tonne, the DX85R-7 is powered by the Doosan D24 diesel engine providing 48.5 kW (65 HP) of power at 2100 RPM.
Doosan added that it combines ‘exceptional power output and high torque at low RPM’, more than 9% more than the previous DX85R-3 model. A combination of Diesel Oxidation Catalyst and Diesel Particulate Filter after treatment methods ensure compliance with Stage V regulations. The manufacturer explained DPF offers a 25% increased ash cleaning period of 5,000 hours compared to the DX85R-3.
Boasting a height to the top of the cab of over 2.6m and a width of 2.25m, the new cab has a full glass entry door to maximise visibility on this side of the machine from inside. There are four standard high luminance LED work lamps.
Key features of the new cab include an ‘enhanced’ heating and air conditioning system; A/C control panel keypad; eight inch touchscreen display; air suspension seat with heating; thumbwheel joystick; auxiliary flow control in the cab; USB charger and 12V socket; and foldable pedals.
Protected by a Falling Object Protection Structure, Doosan said operator safety is further optimised with a rear view camera as standard and an optional Around View Monitoring 360° (AVM) system offering a choice of five views on the display.
The boom foot point has been moved forward by 100mm and upwards by 50mm to provide an improved working range. The DX85R-7 is also said to offer improved lifting power and stability thanks to design changes such as a 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.
The DX85R-7 has Doosan’s latest DoosanCONNECT system installed as standard, which provides a telematics management system.
