DOOSAN
THREE NEW 18-22 T STAGE V WHEELED EXCAVATORS FROM DOOSAN
The new DX170W-7, DX190W-7 and DX210W-7 Stage V compliant wheeled excavators have been launched by Doosan Infracore Europe, providing significantly higher performance in every area than the previous generation Stage IV machines.
T
hey combine increased tool carrier capability, novel operator assist features and enhanced comfort with new features to boost fuel efficiency, uptime and return on investment, with a focus on increased power, robustness and agility. Enhanced Tool Carrier Capability The DX170W-7, DX190W-7 and DX210W-7 offer improved front movement for rotating tools such as mulchers and the working range for articulated fronts has been improved. The articulated boom cylinder stroke has also been increased whilst the mounting position remains the same. A lock valve has now been added on top of the boom cylinder, to prevent unexpected releasing of the articulated boom cylinder when doing digging work. The new wheeled excavators also have a smart new hydraulic system that offers an improvement of around 30% in attachment work, compared to the previous models. The new system applies a smart hydraulic logic for optimal distribution of the hydraulic flow rate when both the arm and attachment are working simultaneously, with a new priority valve and an additional hydraulic line maintaining continuous hydraulic flow to the attachment, even when the arm is being used. Both the DX170W-7 and DX190W-7 are equipped with a 3.2 tonne counterweight as standard, but the DX170W-7 can be equipped with an optional 3.7 tonne
02 - Construction Equipment - MARCH 2022
42
counterweight. The straight monoboom version of the DX210W-7 has a standard 4.0 tonne counterweight and the articulated excavator has a 3.2 tonne counterweight as standard. Optional counterweights of 4.5 tonne and 4.0 tonne are available for the straight and articulated models, respectively. With the optional heavier counterweights, the DX170W-7 and DX210W-7 are particularly suited for working with heavier attachments such as tilt rotators. All three wheeled excavators have new upper structures providing the space and durability for the standard and optional heavier counterweights and articulated fronts. In addition, the excavators now offer a 2750 mm wide axle as an option, providing 8-9% increased lifting capacity over the side, compared to the standard axle. New Tiltrotator Mode There is a new Tiltrotator Mode on the control panel in the DX170W-7, DX190W-7 and DX210W-7, which can be selected to ensure an optimized hydraulic flow and helps to maximize the accuracy
