New Stage IIIB portable air compressors from Doosan
South Korean manufacturer launches 7/125-10/110 and 14/90 compressor models
DOOSAN Portable Power have launched their new Stage IIIB-compliant 7/125-10/110 and 14/90 portable air compressors, replacing the previous Stage IIIA 7/120, 9/110, 10/105 and 14/85 models. Combining advanced engineering with new cost-effective features, the company says the 7/125-10/110 and 14/90 portable compressor models provide the ultimate in performance, serviceability, durability and convenience.
The 7/125-10/110 model (pictured) has a new ‘dual mode’ feature as standard, with a choice of two pressure and flow ratings on the same machine. By pushing a button on the keypad, the operator can switch between ‘LO’ (low-pressure mode: rated pressure 6.9 bar/free air delivery 12 cubic metres per minute) and ‘HI’ (high-pressure mode: rated pressure 10.3 bar/free air delivery 10.6 cubic metres per minute). This ‘two-for-one’ solution offers much greater operational flexibility from the same machine and replaces the need to choose between different models.
With a free air delivery of 8.3 cubic metres per min at an operating pressure of 13.8 bar, the second new model, the 14/90 portable compressor, is available for higher-pressure applications and can be supplied with a traditional dual pressure switch as an option.
The control panel on the new Stage IIIB-compliant portable compressors has also been redesigned. Switches have been replaced by an eight-button keypad that allows the user to start/stop, load, select HI or LO pressure modes and scroll through readouts on the new MidPort display.
The MidPort system is a new interactive digital display integrated in the tachometer, which allows the user to see selected engine and air-end temperatures and pressures, as well as features such as percent fan speed and engine load.
The 7/125-10/110 and 14/90 portable compressors are powered by the Stage IIIB Cummins QSB 4.5 water-cooled diesel engine that provides 97kW of power and meets emission regulations through the use of cooled exhaust gas recirculation (EGR) and diesel oxidation catalyst (DOC) after-treatment technologies, without the need for a diesel particulate filter (DPF).
