Benefits of Air Compressors
Air compressors are essential equipment for various commercial and industrial applications, especially in the manufacturing, automotive, and construction sectors. They work by taking in atmospheric air through a filter and compressing it to increase the pressure significantly. This supply of compressed air is stored or used directly to power everything from pneumatic tools to powder coating equipment and production lines.
Often referred to as the “fourth utility” alongside water, gas, and electricity, compressed air is vital for modern industry.
There are many different types of air compressors, each of which has its own benefits and disadvantages. Selecting the right air compressor depends on your specific application.
Types of Air Compressors
Understanding the difference between compressor types is crucial for efficiency.
- Rotary Screw Air Compressors: These can deliver a continuous and steady flow of pressurised air (100% duty cycle), making them ideal for industrial use. Leading models, like Atlas Copco’s GA series, are designed for reliability in heavy-duty environments.
- Reciprocating (Piston) Compressors: These provide air in pulses as they use pistons. They have a lower initial cost outlay than screw compressors and can be used for tasks that do not require a smooth airflow, or for intermittent use.
- Oil-Free Compressors: For critical sectors like pharmaceuticals and food & beverage, oil-free models (such as Atlas Copco’s ZR/ZT series) ensure ISO 8573-1 Class 0 certified air purity, eliminating contamination risks.
Below, we explore the main benefits of using air compressors and why businesses rely on compressed air over alternative power sources.
Save Money
Air compressors are created with energy-efficient designs, making them cost-effective in the long run compared to other types of tools that use electricity or hydraulics. While the initial investment in a premium machine (like an Atlas Copco VSD model) might be higher, the total cost of ownership is lower due to reduced energy bills.
The initial costs of pneumatic tools and machines are generally lower, and air compressor maintenance is often more affordable than you would expect. Many modern air compressors benefit from heat energy recovery, utilising excess heat to warm a property or water supply, which can recover up to 94% of the input energy.
Furthermore, under UK government incentives like “Full Expensing,” businesses can often claim 100% first-year tax relief on qualifying plant and machinery, making upgrading to a new system financially attractive.
Less Manual Labour
Pneumatic tools have numerous advantages over manual tools such as wrenches, ratchets and nail guns. They can deliver greater force with more precision. They will not cause fatigue in the same way when being used for repetitive tasks such as manually hammering in hundreds of nails or drilling thousands of holes.
They consistently achieve the results required for a task. Air compressors are versatile and are also much more adaptable than traditional tools, which usually have one specific purpose.
Less Environmental Impact
Air compressors can help businesses reduce their environmental footprint by cutting wasted heat and lowering electricity use. Modern compressed air systems, particularly those using Variable Speed Drives (VSDs), adjust their air supply to match air demand, improving compressor performance and reducing emissions. This technology prevents energy waste during idling, offering energy savings of up to 50% compared to fixed-speed models.
Oil-free air compressors offer further benefits by eliminating the risk of oil contamination, making them ideal for industries such as food production, electronics, and healthcare. They also remove the need for chemical cleaning and special disposal of waste condensate, helping businesses meet environmental regulations like ESOS (Energy Savings Opportunity Scheme).
Safer Operation
Air compressors are considered one of the safest tools to use as they can be operated at high temperatures or for projects requiring high torque. Unlike electric-powered tools, pneumatic tools do not give off sparks or shocks, allowing them to be used in various environments, including where combustible gases are present (adhering to ATEX and DSEAR regulations).
They have fewer parts that can break compared to their hydraulic counterparts, resulting in fewer accidents from weakened parts.
Versatile
Air compressors can be used with a wide variety of other equipment to achieve anything other tools can, including paint sprayers and pneumatic drills for construction workers.
Everything from polishing, sanding, inflating, and stapling can be done with an air compressor and compatible tools, making it suitable for various sectors such as electronics, food production, and healthcare. They can be installed in an industrial building with an AIRnet piping system or carried as a portable tool for working offsite.
Easy to Maintain
Reliable, dependable, and easy to maintain, air compressors have a durable design to withstand high air pressures and frequent use in tough environments. Air compressors are less likely to experience part failure because they have fewer moving parts than gas-powered equipment or hydraulics.
The most common air compressor maintenance includes replacing filters, oil, and small parts like seals and valves every few months, depending on the frequency of use. Smart monitoring systems, such as Atlas Copco’s SMARTLINK, allow for predictive maintenance by tracking machine health in real-time.
It is also vital to ensure compliance with the Pressure Systems Safety Regulations (PSSR) 2000, which mandates a Written Scheme of Examination for safety-critical components.
What Do Air Compressors Do
Energy Efficient
Air compressors are designed to maximise compressors power while using minimal energy, making them highly efficient across a range of industries.
Modern systems feature technologies such as Atlas Copco’s GA VSD⁺, which adjusts the flow of air to meet the actual demand, improving compressor performance and reducing waste. Heat recovery systems can also capture excess heat and repurpose it for heating water or workspaces.
Choosing the right air compressor size for your business is key to avoiding unnecessary energy use and artificial demand. A well-matched compressed air system helps lower operational costs while supporting greener, more sustainable operations.
Portable
Not all air compressors are for industrial-scale use. Portable air compressors allow flexibility. This makes them ideal for construction sites where air wrenches and nail guns are frequently required around a building or roadside mechanics that inflate tyres or clean engine parts.
Those working in other kinds of remote jobs, such as painters, carpenters, and farmers, can also benefit from the portability of their specialist equipment.
Quiet
Air compressors are relatively quiet compared to gas, electric, and hydraulic tools. Some have superior levels of soundproofing, only giving a sound output of around 60–75 decibels (dB). If an air compressor motor has a low revolution per minute (rpm), the sound will be further reduced as it moves slower and mechanical parts do not work as hard.
Rotary screw air compressors are generally quieter than piston models due to their enclosure and continuous motion. Oil-free air compressors are some of the quietest around and can be used daily without ear protection. This is a significant factor if used in smaller areas.
With so many advantages, if your business requires an air compressor, it’s difficult to find a reason not to use one. If you want to buy or rent an air compressor for the first time or replace an existing one, talk to the experts here at Search Air, as we stock a range of makes and models for any requirement, including the latest Atlas Copco range. We have everything you need, from small portable compressors to custom-built industrial air compressors. We also offer quality air compressor servicing and maintenance plans to keep your system running efficiently.
FAQ
What makes an air compressor energy efficient?
Air compressors are designed to maximise output while using minimal energy. Features such as Variable Speed Drives (VSD) allow the system to adjust the volume of air delivered to match actual demand, reducing waste by eliminating idling time. Choosing the right air compressor size for your business also helps maintain efficiency and lower running costs.
Why is compressed air considered the “fourth utility”?
Compressed air is often seen as essential as water, gas, and electricity. Air compressors draw in atmospheric air and compress it to produce high-quality air, which is then used to power a wide range of tools and machinery across industries. A reliable compressed air system helps businesses operate more efficiently and sustainably.
How does choosing the correct type of compressor affect energy use?
Selecting the correct type of compressor for your needs is crucial. Oversized air compressors may waste energy by producing more compressed air than required (artificial demand), while the correct size ensures better compressor performance and efficiency. Considering factors like air quality, flow of air, and compressor types available will help you make the best choice for your application.
What is the difference between oil-free and oil-injected compressors?
Oil-injected compressors use oil to seal and cool the system, making them efficient for general tools. Oil-free compressors (Class 0) guarantee 100% oil-free air, which is essential for sensitive industries like food, pharmaceuticals, and electronics to prevent contamination.
Are there UK regulations I need to be aware of?
Yes. Under PSSR 2000, systems operating above 0.5 bar must have a Written Scheme of Examination. Additionally, employers must ensure breathing air meets BS EN 12021 standards if used for respiratory equipment.