Doosan announces three new 18 to 22 tonne Stage-V Wheeled Excavators
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.
They 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 new smart 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 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 tiltrotators.
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 of tiltrotator work by eliminating back pressure. This new tiltrotator mode is a special two-way flow mode, but it is managed by the EPOS like a one way flow mode, with direct return to the tank in each direction, to avoid back pressure and increase flow and controllability.
New Fine Swing Function
Another standard new feature is the Fine Swing function which minimizes the shaking that a lifted object undergoes at the start or stop of a swing movement with the excavators, to increase the safety of nearby workers and to prevent damage caused by the object falling from the excavator. When Fine Swing activates, the overrun disappears, allowing the wheeled excavators to smoothly reach maximum swing speed, whilst removing the shock from the turn reversal at the moment of stopping, resulting in a smooth stop.
The new excavators incorporate as standard a new lifting eye that forms part of the casting for the push link for the bucket attachment at the end of the arm. The new lifting eye has a maximum capacity of 5 tonne and has a special bush insert to prevent deformation of the lifting hole.
New Operator Assist Features
The state-of-the-art cab on the DX170W-7, DX190W-7 and DX210W-7 excels in terms of spaciousness and ergonomics, taking operator comfort and ease of operation to new levels. As well as a new high quality seat, the enhanced cab offers more features as standard than other machines on the market, ensuring super controllability and high precision in all applications.
For example, the wheeled excavators offer as standard the new Auto Digging Brake feature, which automatically holds the service brake in position when the vehicle stops (speed is zero), without the driver having to step on the brake pedal. The driver can activate or deactivate the Auto Digging Brake function by pressing the Auto Digging Brake button on the control panel. When the accelerator pedal is then pressed, the Auto Digging Brake function is released.
Joystick Steering is a new option, enabling the driver to steer the machine by using the joystick thumbwheel (without using the steering wheel) when working and driving in the work mode. The Joystick Steering system only works under 20 km/h when first or second speed gears are engaged. The function is activated or deactivated by pressing the thumbwheel steering button on the control panel for at least one second.
The Load Isolation System (LIS) is another new option that enhances the operator’s driving comfort by mitigating the impact transmitted to the front of the machine, when driving off road on uneven and tough terrain. The Boom Suspension (LIS) function is also actuated by pressing a button on the control panel – it can be automatically activated when the driving speed is 5 km/h ± 0.5 km/h or higher, and the function is deactivated at 4 km/h ± 0.5 km/h.
The cab features as standard a deluxe steering wheel with a chrome plated spoke and logo. The new two spoke wheel design provides increased operator visibility. The steering column also has a new design including an 80 mm telescopic function, which allows the operator to bring the steering wheel closer to them, so that they can find their optimal driving position. In addition, there is a new tilting lever, providing a 15-degree tilt towards the operator, to increase visibility over the top of the steering wheel, when they are doing trenching work, for example. The narrower design of the steering column also contributes to enhanced visibility.
Other key new features in and around the cab include:
- New 8-inch Doosan Smart Touch screen, giving more information via a 30% larger screen
- DAB audio (Hands-free calling system and Bluetooth)
- Keyless start (Doosan Smart Key) & remote door lock/unlock
- Fully adjustable air suspension seat with heating (with optional cooling function)
- Parallel wiper system and new design pedals
- Improved air flow for defrosting and air conditioning
- 7 x LED work lights as standard
- 4 more LED lamps as an option
- AVM – Around View Monitor with 360° cameras (option)
- Ultrasonic detection of obstacles (option)
New Stage V Engine
To meet Stage V engine emission regulations, the DX170W-7, DX190W-7 and DX210W-7 wheeled excavators are powered by the latest generation Doosan DL06V diesel engine, providing 111 kW (149 HP), 121 kW (162 HP) and 141 kW (189 HP) of power, respectively. The DL06V engine offers a new solution to exceed Stage V regulations without exhaust gas recirculation (EGR), that boosts the quantity of air available during combustion, increasing the temperature of the process and greatly reducing the amount of particulates produced. This is combined with super-efficient DOC/DPF+SCR after-treatment technology to ensure minimal emissions. Thanks to the new technology, maintenance of the diesel particulate filter (DPF) has been greatly reduced, with no maintenance required until the machine has operated for 8000 hours.
SPC3 Smart Power Controls
In the new wheeled excavators, the enhanced fuel efficiency of the DL06V engine in combination with a new hydraulic main valve and the new generation SPC3 Smart Power Controls, provides increased fuel saving compared to the previous generation machines. There are four power modes now available on the DX170W-7, DX190W-7 and DX210W-7, which help to simplify the operation of the new excavators compared to the more complex choice of eight power modes and SPC combinations in the previous generation machines. The operator is able to set the power mode (P+, P, S or E) in both one-way and two-way working modes.
When driving the wheeled excavators, the operator can select two-pump travel mode via a touch control on the main panel. This reduces revs by about 300 RPM when engaged, resulting in up to 10% less fuel consumption when travelling. The acceleration function has also been improved, so the operator feels a faster response when pressing down on the acceleration pedal. When two pump travel is disengaged, it provides higher torque for driving uphill, but generally as long as the slope is not too extreme, the use of two pump travel is recommended.
DoosanCONNECT Telematics System
The new DX170W-7, DX190W-7 and DX210W-7 models are factory-installed as standard with Doosan’s state-of-the-art DoosanCONNECT wireless fleet monitoring system. The DoosanCONNECT system offers a web-based fleet management solution which is very useful for monitoring the performance and security of machines and promoting preventative maintenance. It is available as a standard feature on all new Doosan excavators (from 14 tonne), all new Doosan wheel loaders and Doosan ADTs.
Specifications for the Doosan DX170W-7 wheeled excavator
- Operating weight (2500 mm arm & articulated boom): 17700 kg
- Max Digging Depth: 5745 mm
- Max Digging Reach: 9140 mm
- Max Digging Height: 10210 mm
- Digging force over bucket (ISO): 10.1 t
- Digging force over arm (ISO): 7.9 t
- Lifting Capacity at max reach: 2.31 t
- Lifting Capacity at 4.5 m: 8.14 t
- Lifting Capacity at 6 m: 5.99 t
- Max Traction Force: 10.8 t
- Swing Force: 5825 kgf·m
- Engine (SAE J1349, net): 6-cylinder Doosan DL06V Stage V | 111 kW (149 HP) at 2000 rpm
Specifications for the Doosan DX190W-7 wheeled excavator
- Operating weight: (2600 mm arm/monoboom front dozer rear outrigger): 20000 kg
- Max Digging Depth: 5725 mm
- Max Digging Reach: 9255 mm
- Max Digging Height: 9440 mm
- Digging force over bucket (ISO): 11.4 t
- Digging force over arm (ISO): 9.0 t
- Lifting Capacity at max reach: 3.61 t
- Lifting Capacity at 4.5 m: 0.59 t
- Lifting Capacity at 6 m: 7.74 t
- Max Traction Force: 11.8 t
- Swing Force: 5030 kgf·m
- Engine (SAE J1349, net): 6-cylinder Doosan DL06V Stage V | 121 kW (162 HP) at 2000 rpm
Specifications for the Doosan DX210W-7 wheeled excavator
- Operating weight (2750 mm arm/monoboom): 21900 kg
- Max Digging Depth: 5905 mm
- Max Digging Reach: 9705 mm
- Max Digging Height: 9870 mm
- Digging force over bucket (ISO): 13.6 t
- Digging force over arm (ISO): 10.3 t
- Lifting Capacity at max reach: 5.13 t
- Lifting Capacity at 4.5 m: 10.93 t
- Lifting Capacity at 6 m: 8 t
- Max Traction Force: 12 t
- Swing Force: 6387 kgf·m
- Engine (SAE J1349, net): 6-cylinder Doosan DL06V Stage V | 141 kW (189 HP) at 1900 rpm