Waterloo, Belgium. Doosan Portable Power has launched the new large 25/280 portable compressor meeting Stage IIIB (Tier 4i) emission regulations. The 25/280 portable compressor, which will be exhibited for the first time at Bauma 2013, has a free air delivery of 28.3 m³/min at a rated operating pressure of 25.1 bar. Dual pressure regulation is a standard feature of the 25/280 compressor, allowing it to supply compressed air at operating pressures of both 25.1 or 17.2 bar.
Dual pressure regulation expands the scope of applications for the 25/280 compressor which includes powering a wide range of drilling and boring machines for quarrying, mining, site investigation, geothermal, mineral exploration, water well construction and shallow oil and gas projects, together with truck-mounted applications for quarry and water well drilling. The 25/280 compressor can also be used for other specialist applications such as abrasive blasting, spray painting and standby and temporary compressed air for industry.
Compliance with the Stage IIIB engine emission regulations has given Doosan the opportunity to provide customers with a completely new design offering a much higher return on investment by combining reduced size and footprint to minimise transport costs with increased fuel efficiency, reliability, durability and unparalleled service access to optimise maintenance work.
With a length (drawbar up/drawbar down) of 5150/6735 mm, a width of 2123 mm and height of 2553 mm, the 25/280 compressor is 18% smaller than the current 25/330 Stage IIIA model, meeting a customer preference for both compact size and easy serviceability. The greatly reduced size also offers advantages for truck-mounted configurations for the 25/280 compressor.
New standard features that contribute to the easy serviceability and increased reliability and durability of the new 25/280 compressor are single row core heat exchangers for ease of cleaning; a cool box (blower fan) to reduce component temperatures; a fuel cooler preventing fuel heating at low fuel reservoir levels which reduces fuel efficiency and power; central drains; a Galvanneal sheet metal enclosure for optimal corrosion protection and a new design to minimise entry of rain into the enclosure.
Several additional features such as multiple air outlets, a bunded environmental base offering 110% containment and forklift slots have also been incorporated as standard. The 25/280 compressor has a hot ambient capability of 49°C (120°F) Limiting Ambient Temperature (LAT) and there is a Low-Ambient Option providing start and operation to -28 °C with start aids and to -10°C un-aided.
The new 25/280 compressor is powered by the CAT C-13 diesel engine using cooled EGR with the Cat Clean Emission after-treatment system to meet the Stage IIIB regulations. The CAT C-13 engine provides 354 kW (475 HP) of power at 1800 RPM.
The move from the CAT C-15 engine in the current 25/330 model to the C-13 engine in the 25/280 model provides improved fuel economy and lower operating costs. The new compressor has two 340 l fuel tanks on board, providing enough fuel for the machine to run at full load for 8 hours.
The 25/280 compressor has a completely new control system with a full colour digital display and LED backlit gauges, providing full machine status, a fault code history and an integrated e-reader library pre-loaded with a full set of manuals for the machine. As well as the manuals in electronic form available on the display, an optional WiFi interface allows for live streaming of data to operators or to the laptop, tablet computer or smartphone of service technicians.
Doosan Portable Power at Bauma: Open Air, Space F6 612/3
Michael Isherwood
Tel. +44 (0)20 8723 0161
mikish@btinternet.com
Nancy De Sy
Corporate and Public Communication Manager
Tel. +32 2 371 68 41
nancy.desy@doosan.com
Source:
Doosan Bobcat EMEA
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