Compressors keep on running
Fourth Quarter 2005
Pneumatic systems & components
Arthur Rushmer Engineering reports that the numerous Mattei Maxima range of compressors that it has supplied continue to run well. The range consists of the following models:
* Maxima 35 - which delivers 7,6 m³/min at 700 kPa, at operating speed of 990 rpm, with a 35 kW 380/3/50 Hz electric IP55 TEFC motor and a low sound level of 68 dbA at 1 metre.
* Maxima 55 - which delivers 11,5 m³/min at 700 kPa at operating speed of 990 rpm, with a 55 kW 380/3/50 Hz electric IP55 TEFC motor and a low sound level of 68 dbA at 1 metre.
* Maxima 75 - which delivers 16,0 m³/min at 700 kPa at operating speed of 990 rpm, with a 35 kW 380/3/50 Hz electric IP55 TEFC motor and a low sound level of 76 dbA at 1 metre.
The above models are supplied as complete air centres with a built-in after cooler that has an electronic drain and condensate separator as standard - and a state-of-the-art Maestro controller, which offers remote monitoring ability. The Maestro is also capable of controlling a multiple compressor installation and becoming the master controller. The optimum energy saving package can be achieved when combining the Maxima and Optima Inverter (Variable Speed Drive) compressors, which can be controlled by Maestro thereby achieving power and energy savings through variable and low speed technology to enhance efficiency and reduce overhead cost.
Comparing the free air delivery of the Maxima to other compressors, it is obvious that they cannot deliver the same amount of air as the Maxima. For example, a 55 kW rotary screw compressor delivers 10 m³/min at 700 kPa, whereas the Maxima 55 delivers 11,5 m³/min at 700 kPa, which is 1,5 m³/min more for the same power input, mainly due to the low running speed of the compressor, allowing better efficiency which amounts to big power-cost savings.
Some of these Maxima compressors operating in southern Africa have already reached 30 000 operating hours without intervention, which proves that they are reliable in the conditions prevalent in southern Africa.
For more information contact Arthur Rushmer Engineering, +27 (0) 11 908 4169, [email protected], www.are.co.za
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