Waterloo, Belgium. At Bauma 2013, Doosan Portable Power will be showing the new 21/220 large Stage IIIB portable compressor for the first time. The 21/220 model is powered by the Cummins QSL9 engine providing 254 kW (340 HP) of power at 1800 RPM and using Exhaust Gas Recirculation, Diesel Oxidation Catalyst and Diesel Particulate Filter technologies to meet the Stage IIIB regulations. The 21/220 compressor produces a free air delivery of 21.5 m3/min at an operating pressure of 21.0 bar.
The 21/220 model is part of a new family of large Doosan portable compressors based on a common platform that also includes the new 9/275, 9/305, 12/250 and 17/240 models and offers free air deliveries from 21.5 to 30.0 m3/min at operating pressures from 8.6 to 21.0 bar. All the new compressors feature the Cummins QSL9 engine, which provides 227 kW (304 HP) of power in the 9/275 model and 254 kW (340 HP) in the 9/305, 12/250, 17/240 and 21/220 models.
Several additional features such as multiple air outlets, a bunded environmental base offering 110% containment, central drains, forklift slots and tie-down points have been incorporated as standard in these compressors.
This new family of large compressors offers the best of both worlds: reduced size and footprint to minimise transport costs and unparalleled service access to optimise maintenance work.
With a length (drawbar up/drawbar down) of 4408/5841 mm, a width of 2120 mm and height of 2497 mm, the 21/220 compressor and the others in the range are 31 cm shorter than the current Stage IIIA models, meeting a customer preference for both compact size and easy serviceability. The reduced size also offers advantages for truck-mounted configurations for the compressors.
With regard to serviceability, a wide opening rear canopy together with a removable panel provides easy access to the radiator from either side for cleaning. The gull wing doors and drop-down side panel also provide unmatched access to the unit, facilitating service, inspection and repair.
The right side of the engine compartment offers convenient easy access to the central drains, oil filters, fuel filters and the separator tank is centralised on this side of the unit. The separator tank has a swinging lid which allows removal of the element without any further dismantling of the body. The left side of the engine compartment offers easy access to the engine oil filter, coolant conditioner, batteries and battery switch, the aftercooler (optional) and additional filters.
The low level, wide mouth fuel filler is well positioned and allows refuelling from a jerrycan. As an option, the filler neck can be placed on the other side or even on both sides of the unit if preferred.
Large portable compressors of this type are used to provide compressed air for a wide range of drilling and boring machines for quarrying, mining, site investigation, geothermal, mineral exploration and water well construction work. They also cover other specialist applications such as abrasive blasting, spray painting and standby and temporary compressed air for industry.
The compressors come as standard on a wagon wheel style running gear system, but the customer has the option of either a new fast tow option which allows the unit to be towed on public roads or the ‘no wheels’ chassis option, where the machine is supplied in a permanent mount configuration.
The highly modular design offers the flexibility for a wide range of optional equipment to be added easily. The wide range of options available allows the machines to be adapted to a specific application, such as the fitting of an aftercooler with water separator and additional filters (IQ-system) as well as the use of a paint scheme to match the customer’s livery.
The compressors have an entirely new operator interface with an intuitive joystick control and a full colour digital display. The new system is easy to read and offers a choice of gauge and display styles, integrated e-reader library preloaded with full set of manuals, full machine status and fault code history. The WiFi interface (optional) provides live streaming of data to the laptop, tablet computer or smartphone of the operator or service technician.
Doosan Portable Power at Bauma: Open Air, Stand F6 612/3
Michael Isherwood
Tel. +44 (0)20 8723 0161
[email protected]
Nancy De Sy
Corporate and Public Communication Manager
Tel. +32 2 371 68 41
[email protected]
Source:
Doosan Bobcat EMEA
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