Simple Ways to Reduce Your Compressed Air Costs?

Air compressors use considerable volumes of energy during a typical work cycle. When you add up all the expenses of operating a facility, any savings can help you boost your bottom line. With air compressors, savings come down to efficiency, which depends on a steady maintenance regimen. The following 13 ways to reduce compressed air costs can help you increase your productivity, boost your earnings and prevent costly repairs and system downtime.

1. Turn Off Your Air Compressor

Air compressors use considerable volumes of energy during a typical work cycle. When you add up all the expenses of operating a facility, any savings can help you boost your bottom line. With air compressors, savings come down to efficiency, which depends on a steady maintenance regimen. The following 13 ways to reduce compressed air costs can help you increase your productivity, boost your earnings and prevent costly repairs and system downtime.


One of the easiest ways to lower compressed air costs is to simply turn your compressor off during the hours when you do not need it for any of your applications. To a lot of people, this might seem like a piece of anti-advice. After all, this article is about how to lower compressed air costs and be productive with pressurized air. How would shutting off the compressor help you achieve that goal? The thing is, a lot of people keep their air compressors idling during off-hours, oblivious to the fact that this wastes energy.

Think of it this way. A calendar week consists of 168 hours. Unless you actually use your compressor for processes that run nonstop, 24/7, there is no reason to have your compressor running every hour around the clock. If you only use the compressor for eight, 10 or 12 hours per day, five days per week, you would only need to have the compressor on between 40 and 60 hours in a given week. By cutting the hours of usage down to a typical working week, you could cut your energy consumption down by two-thirds and see significant savings in your subsequent energy bills.

2. Repair Existing Leaks

To save money on compressed air costs, it is crucial to eliminate air leaks as much as possible. With air compressors, four-fifths of the energy consumed in a given cycle turns to heat, and only the remaining 19 percent yields air power. When leaks and other performance issues plague the compressor, the overall efficiency drops even lower than that one-fifth level. It is, therefore, essential to inspect your compressed air system for leaks regularly and perform maintenance when necessary.

Most leaks are hard to detect because they are either located in hard-to-access spots or the rupture is not large enough to be audible at arm’s length. Depending on the scope and magnitude of your operations, the costs associated with air leaks could spill into the four- or five-figure range each year. The most effective way to reduce leaks is to use an ultrasonic leak detector, which can detect some of the smallest and faintest leaks. With a leak detector, you can spot and remedy leaks in their formative stages before they expand and lead to costlier problems.

3. Stop the Formation of New Leaks

Consistently achieve lower compressor energy costs, you must perform anti-leak preventative maintenance regularly. During each inspection, leave no stone unturned in your efforts to prevent the formation of leaks. When it comes to stopping leaks, you must look at various parts of the system, both inside and out, because various problems can result in new leaks.

The first place to check is the pipes, which could be vulnerable to cracks if corrosive elements are allowed to deposit along the length of a given pipe or any of the connecting points. If you spot dust particles or sludge around the piping, clean these spots as thoroughly as possible. To keep each surface in optimal condition, you must keep each pipe clean and dry.

During these inspections, check the filters and drains to ensure that no dust or water accumulates within the system. When mist and dirt get trapped within the compressor and deposit on various internal parts, corrosive gunk can take hold and lead to rust, leaks and system strain.

4. Lower the Air Pressure

Even when your system is free of leaks and dirt, you can cut compressed air costs even further by reducing the pressure to the levels required for a given operation. At many facilities, pressure levels are set to maximum thresholds to accommodate the highest-pressure applications. The trouble is, these high-pressure tools and applications might only account for a fraction of the air-powered arsenal.

If you only use high-pressure tools on a part-time basis, consider the possibility of separating those tools from the rest of your equipment. This way, you could run your compressor at medium pressure and save energy through most of your working hours and only increase the pressure when necessary.

If you operate a large facility with multiple compressors, designate each machine for different pressure levels. For example, if you have a range of lower- or medium-pressure applications and only one or two that require high pressure, you could save energy by moving those latter applications to a second compressor specifically designated for such tools.

5. Inspect the Drains, Replace if Necessary

While condensate drains perform an essential task for your air compressor, the feature itself could be a huge drain on your system if it malfunctions without anyone noticing. On air compressors with timer drains, the drain valve will automatically open each time the timer goes off. If the machine is inactive when this occurs, the timer drain will start up the motor for a short time. Consequently, the drain could often inflict excess wear and tear on your system, just so the drainage process can occur according to schedule.

Further problems could arise if the timer drain gets stuck in the open position. Depending on the placement of your air compressor and the maintenance schedule of your staff, an open drain door might go unnoticed for several weeks or months. That whole time, compressed air will inevitably leak from the system.

To get around this problem, use a zero-loss drain. This way, your system will not be vulnerable to air loss each time you drain the system. By investing in a zero-loss drain, you can save in the long run by preventing the air loss and maintenance costs that will mount over time due to the problems associated with timer drains.

6. Reconsider the Piping Setup

The piping for your air system should be wide enough to allow optimal flow and reduce pressure drop. At the same time, pipes should travel the shortest possible distance to reduce the length of flow, as lengthy flow increases the possibility of pressure drop. With wider pipes, you can cut pressure drop in half because the air can travel faster and retain its original pressure.

Pressure drop is liable to increase when the routing is lengthy and complicated. The longer each flow must travel, the more the pressure drop will be by the time the air reaches its end-point destination. If the pipes are changed in a way that doubles the flow, the pressure drop could increase four-fold. Consequently, your pneumatic processes would be rendered weaker, and the system overall would be less efficient because of tight, lengthy piping.

In recent years, piping has changed on newer compressed air systems. If your current piping was used years earlier on a smaller compressor, consider a new arrangement. If your pipes are smaller than the outlets on your compressor, trade up to a new set of pipes that are wider in diameter. Rather than complicate matters, arrange your pipes so that the flow is wide and as short as possible.

7. Clear the Filters and Replace When Necessary

To further cut compressed air operating costs, clean the filters throughout your system on a regular basis. On each unit, the filters play a critical role in the process of the system by capturing dust and dirt from the incoming air. This way, the ambient air is free of air-bound particulates by the time it enters the pressurization chambers. Without the filters, the pressurized air would likely be contaminated and rendered far less effective for pneumatic applications. Moreover, dust and dirt would filter through the air compressor and accumulate on various internal parts.

Depending on the volume and frequency of your operations, each filter should be cleaned on a weekly or monthly basis. Make sure that all dirt is removed before you restart the compressor. Additionally, clean any secondary filters, such as air-line or point-of-use filters situated outside the compressor room or away from the actual units. When a filter appears worn or soiled with residue, change out the filter with a matching replacement.

8. Conduct and Schedule Maintenance

When it comes to the operation of your system, one thing is certain — maintenance amounts to savings on compressed air operating costs. To maximize the functions of your air compressor, you must inspect the unit on the outside and inside periodically. In addition to the pipes and filters, you should regularly inspect the motor fans, drip tray, belt and lubrication.

The fans in your air compressor perform a crucial function by lowering the heat inside your unit. To keep the fans fully functional, check the blades for dirt or lint. If one of the blades appears dull or cracked, trade out that fan for a newer duplicate.

Each time you open up the air compressor, inspect the belt to make sure that it has the proper flex to function properly. Give the belt a slight pull to test its elasticity and run your finger across the side for signs of cracks or dullness. When you check the lubrication, make sure that it has the proper color and viscosity. If the machine has been excessively hot, the lubrication could melt and leave the internal parts vulnerable to grinding and rust.

9. Identify and Eliminate Wasteful Uses of Compressed Air

An engineer who knows how to save on compressed air costs will work to eliminate wasteful uses of pressurized air. Regardless of the size of your facility, it is crucial to know the pressurization requirements for the applications at hand and the amount of energy needed to make it all possible. Otherwise, extraneous uses of energy could eat into your profit margin.

In some cases, various minor acts of compressed air usage can amount to wasteful behavior. For example, if pneumatic blowers are used by factory floor personnel to dust off tables and shelves, air power is being consumed for a function that could just as easily be performed with manual brushes.

In other cases, extraneous compressed-air usage can quickly become a costly habit. For example, if air blowers are being used to cool the interior of an industrial facility, you could be faced with soaring energy costs over a function that would be much better achieved with fans or an air conditioning system.

10. Rearrange the Air Receivers

In a compressed air setup, the size and placement of the air receiver is a major determining factor in the overall operating cost of the system. For each successive pressurized air supply, the air receiver functions as a placeholder between the compressor and the system at large. Within the air receiver, the pressure is modulated to suit the demands of the application at hand.

In some factories, technicians place the air receiver before the air dryer. This way, lingering traces of oil and condensate are removed from the process before it reaches the dryer. The downside to this arrangement is that the receiver is forced to hold denser supplies of air. If the demand surpasses the capacity rating, the dryer might get overloaded and increase the dew point pressurization.

The other option is to place the receiver after the dryer. This way, spikes in demand are received with dry air. For protective purposes, the ideal arrangement is to affix the supply side with two receivers. In this arrangement, the first receiver controls condensate dropout while the second handles varying demand levels.

11. Choose the Right Dryer and Filter

The importance of drying pressurized air is generally a misunderstood concept, even among people who mostly understand how to lower compressed air system costs. Consequently, the systems put in place for this purpose are often inefficient. One of the most frequently asked questions about filters and dryers concerns whether desiccant or refrigerant types are best. The question is usually followed by further inquiries regarding regulators, lubricants and filtration levels.

12. Get a Professional Tune-up

Before these questions can be answered, the applications of your compressed air system must be taken into account. For example, the level of your drying needs could depend on whether you operate in a humid environment. That said, certain principles apply in all cases. For starters, never allow pressurized air to dry beyond the required level of the application, as doing so will make your operations more costly. The more efficient option is to first use a refrigerant dryer and only apply further drying on an as-needed basis, as determined by the application. To avoid additional pressure drop, limit your use of filters to the bare necessity.

One of the easiest ways to save money on compressed air energy is to pay for a professional tune-up of your air compressors and peripheral parts. When you hire a third-party maintenance technician to come to your facility, that person will likely spot issues that your in-house staff may overlook. Professional maintenance techs have inspected hundreds of different air compressors and know about all the common mistakes that users make with these machines.

A professional technician will come to your facility with equipment and tools to evaluate and tighten up your system in all the weak spots. If your connectors are loose, the technician will tighten these spots and run a test on the compressor to verify that the leaks have been sealed. If your compressor is losing oil, the technician will diagnose the problem and rectify the situation, whether this involves a new compartment or a new set of fasteners.

13. Select the Right Air Compressor

Anyone who really knows how to save energy in compressed air systems will stress the importance of choosing the right type of compressor for a given set of applications. If your operations are large and high-volume, you will need a different kind of compressor than the type used by companies that specialize in delicate products and vice versa. In any case, the four main compressor types are defined by the following attributes:

Who we are and how Ash Air can help your business!

Ash Air has been around in New Zealand since 1979, and we’ve grown into a nationwide company with international support and a reputation for quality and reliability.We look after all things compressed air for your business!

Ash Air's range of Chicago Pneumatic, Alup, Pneumatech, and Quincy compressors are used extensively around the world in industries ranging from oil and gas to food, automotive and farming, and we bring you these world class compressors here in the land of the long white cloud.Our technicians are compressed air equipment experts and are dedicated to addressing customer needs. Supported by a 13 locations nationwide, Ash Air offers one of the widest selections of compressed air equipment and parts available today in New Zealand.

Reliability and Efficiency

With Ash Air compressors, you can count on reliability and high performance for even the most demanding applications. We focus our efforts on the following:


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Our #1 Focus is Customer Service! Whether you have questions about which compressor is right for you, or if you’re ready to improve your operations and start saving on expenses. Ash Air has been around for over 40 years because we offer reliable and hardworking air compressors, vacuum pumps, and services as well as expert advice and support. …


An oil analysis can prevent problems later down the road. It's often been referred to as the blood test for your compressor. Just like a blood test can tell you about your health and early alerts to impending problems, an analysis can do the same for your compressor. …




Did you know that pressure drops and leaks are the two largest areas of energy loss on your air compressors? It’s easy to understand why a leaking pipe or fitting creates energy loss. Pressure drops are not quite as noticeable, since you cannot hear ... …


Whenever anything doesn't work properly, it's frustrating and we get it. If this is your first time experiencing troubles with your dryer, you're probably unsure where to even start. Getting your dryer repaired and back up and working is critical to ... …


Screw compressors are helpful for an enormous range of applications such as air filling, packaging, tools, HVAC control, and more! One possible drawback is the amount of electricity they use; air compressors can be a huge drain on energy if used ​ine... …



Most air compressors require constant oil lubrication to prevent friction on the pistons or screws and other moving parts. To make sure your air compressor is running efficiently, it is important to check your oil level regularly and to know how much... …


Have you heard of the term "Total Air Solutions"? A total air solution means everything that goes with the compressor for your business’s air system. 90% of companies require more than just an air compressor.  …


When speaking of air compressors, compressed air treatment is a process that dehumidifies and cleans air before entering the compressor. Most commonly, this process involves air filters and an air dryer. …


Air compressors are used in many different applications and provide essential compressed air to many businesses and individuals with different air needs. No matter what your CFM, PSI and HP requirements are, the electronic controller on your air compressor is the motherboard for keeping your unit running as efficiently as possible. It is your eyes into your machine. …


Air compressors are helpful for an enormous range of applications such as air filling, packaging, tools, HVAC control, and more! One possible drawback is the amount of electricity they use; air compressors can be a huge drain on energy if used ​inefficiently​. If you are running them too long, allowing leaks to exist, or using the wrong type of compressor, you are wasting ​energy and money​. This article will go over some of the biggest power-wasters and how to
stop/prevent them! …

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