Should you replace or repair your compressor? A simple judgment criterion: if the repair cost exceeds 50%–60% of the price of a new compressor, replacement is recommended rather than repair. Replacing key spare parts of the air compressor often involves substantial costs, and the efficiency and performance of the repaired unit can hardly match those of a brand-new compressor.

Have you estimated the life cycle cost of a new compressor (including energy consumption and maintenance)? The primary component of compressor life cycle cost is the ongoing energy consumption during operation. Compressors equipped with energy-saving technologies consume less power. Routine maintenance also constitutes considerable expenditure, which should be included in life cycle costs. Compressors of different brands and models require different maintenance frequencies; some units need maintenance twice as often, or even more frequently, than others.

Have you formulated a plan to optimize the compressor system throughout its service life? Energy consumption makes up the largest share of costs for compressed air systems. You need to confirm the air volume required under your target operating pressure and the energy consumed to reach such pressure. Professional Tip: Check whether a Variable Speed Drive (VSD) compressor suits your application, and evaluate if your process can benefit from a high-performance Q-controller. These solutions can help improve the energy efficiency of the whole system.