COMPRESSED AIR FEATURE ROTARY SCREW SYSTEM SAVES ENERGY AND RUNNING TIME
When Calderdale Engineering Services (CES) moved premises they replaced a 15-year old fixed-speed compressor with an Atlas Copco VSD installation that has since reduced energy costs by 50%, running time by 80% and occupies a substantially smaller workshop footprint. CES offers traditional manual turning,
milling, boring and machining capability as well as fabrication and engineering services from one-off welded assemblies to batch component manufacturing. The move prompted a review of operational efficiency of the existing compressor installation that has required continuous running in order to supply air for assembly tools, instrumentation and blow-down cleaning procedures. No longer fit for purpose, it needed to be replaced. As a long-term customer of Atlas Copco Compressors’ premier distributor Pennine Pneumatic Services (PPS) CES called on their expertise to recommend the optimum unit for its specific needs. As a result a new Atlas Copco GA11VSD+ rotary screw compressor was installed to provide greater efficiency and help make substantial energy savings. "We have a mutually beneficial and long-standing relationship with CESand were glad to be able to assist with this
upgrade,” comments director Ian Harrison. “Our priority is introducing energy-saving initiatives that save our customers money and we look forward to continuing to work closely with CES." In contrast to the continuous running, fixed-speed compressor the GA compressor’s VSD matches compressed air supply to demand thereby reducing run time and corresponding energy costs by as much as 50%. When combined with the compressor’s in-house designed iPM permanent magnet motor, this results in an average 37% reduction in lifecycle costs compared to that of a conventional fixed-speed compressor. Instead of the conventional horizontal design the GA machine has an upright,
In contrast to the continuous running, fixed-speed system the GA compressor’s VSD matches air supply to demand
vertical, low footprint layout designed to save floor and work space while improving maintenance access and thanks to the silent motor and fully- enclosed drive train the compressor runs as quietly as 62dB(A). A further cost- saving feature is the system’s air ring main constructed from Atlas Copco’s AIRnet modular air piping system. Readily adaptable, it is made from robust, lightweight, powder-coated aluminium tube and designed for easy, low-cost installation with a large selection of engineered polymer fittings. AIRnet’s low friction, seamless pipework is corrosion-free and thus minimises pressure drop in the system and contributes to energy efficiency. “We have been logging the number of
running hours on the new machine since we moved in,” says owner John Pateman. “When we reached a figure of 300 hours we estimated that the equivalent running time on our old system which operated constantly during working hours would have been in excess of 1,600 hours for the same period and operated less efficiently.”
Atlas Copco T: 0800 181085
www.atlascopco.co.uk
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