Air-cooled High Pressure Compressor Package Preferred by Al Rawdah Green for PET Application

Al Rawdah Green ensures no compromise to the quality of their products delivered yet focusing on optimizing overall operation with highly reliable machinery to support their round the clock production. For their expansion in 2020, Atlas Copco’s High-Pressure specialists got involved to look at the existing PET process and propose suitable high-pressure solution for continuous operation in hot climate conditions. Customer’s focus was on energy efficiency with minimal maintenance required, thereby lower operational cost and risk of downtimes.

As food & beverage industry follows high standards and here final bottle blown meets the filling water, it was a must to offer Class 0 100% oil-free quality high pressure air that also complies with ISO 22000. Typically, this technology comes in water-cooled variants, calling for a list of necessary cooling ancillaries like – cooling tower, pump skid, control panels etc. to purchase, install and then to maintain at site – increasing total cost of ownership. This is where Atlas Copco made a unique offering to supply ZP compressors: Air-cooled Oil-free High Pressure Plug & Play package, that only need power as utility to operate at site.

The 3 units of ZP 55 operations at Al Rawdah Green production facility since beginning of 2021, are delivered as factory tested and assembled on industrial skid for ready operation. It comes with all built-in components necessary to run including the main motor that is world class IP55, IE3 efficiency and a complete 3-stage horizontally balanced opposed piston block (reliable design) posing minimum vibrations to ensure smooth operation and longer machine lifetime. These units come on a double deck arrangement with anti-vibration mounts further reducing installation (no concrete foundation) and ample cooling with large jackets around each cylinder using cooling water in a closed loop that is also installed on board. Eliminating the chances of cooler scaling with air-cooled radiators that are suitable for operation in Middle East high ambient conditions of 50 degC. For maximum reliability, lower inter-stage compressed air temperatures are a must to achieve and in addition to high grade PTFE piston rings and packing that are used to separate the crank and cylinders, a physically distance piece is given in-between to always guarantee 100% oil-free Class 0 air quality as per ISO 8573-1 standard.