Air compressors start at this size & go up to something which could be as large as a typical room in your house. Recent advances in compressor technologies have reduced the size of these very large machines like the Ultima oil-free models, but the reality is that there is a huge array of different processes which use compressed air from tyre inflation to powering whole factory production lines.
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Our dedicated page what is compressed air? air explains why many industries depend on compressed air to power their processes and you can read more about the different compressor applications, the fact is, compressor sizes start at the very small 2kW models and there are models at each kW size all the way up to 320kW and above in some cases as each machine has to cater for a very specific task - to generate the correct volume of air at the correct pressure.
Select the correct air compressor type for the application you are using it for, you can read more about the different compressed air applications here.
Piston or screw, oil-free or oil-lubricated, regulated speed or not, the latest drive technology or a proven principle? When it comes to purchasing an air compressor or upgrading an existing compressor station plant, there are many options you can choose. Oil-free compressors for example are used in food packaging where the air is in direct contact with the process it serves & so must be completely pure.
To power a typical air tool in a factory workshop would take say 4-5CFM so the compressor output would need to correctly match this application at the correct pressure you need the air tool to operate at, say 5 or 8 bar g. The airflow from the compressor also changes depending on the pressure needed, so correct sizing is very important. Many typical air compressor applications run from 3 to around 15 bar. Above this a high pressure piston compressor would be used, say for example refilling scuba diving air tanks, where pressures up to 250 bar (250 times atmospheric pressure) are required.
Before purchasing an air compressor, a range of figures and facts need to be established for the entire compressed air network. These include the compressed air demand (current and in the foreseeable future), the required compressed air quality and whether the waste heat from the compressor is used for another operational process, like heating the factory. If the compressor is being added to an existing station, then you also need to consider integration into the control technology.
It is generally advisable to measure the compressed air demand over a period of time to determine a requirement profile for which the compressor or compressors can be selected.
Compressed air audits are an effective way to identify your current energy use and to assess your compressed air needs.
Air audits can be as simple or as comprehensive as you require. A data-logging unit is attached to each compressor in your network for a fixed period of time. The results from the audit can then be used to analyse your air pressure requirements, power consumption and flow rate.
Our engineers can then provide recommendations that will help you to select the right size and mix of fixed and regulated-speed compressors. The compressed air audit may also identify if you need to switch to a new, more efficient machine, carry out further network improvements or pipework upgrades or if your compressor requires better control. We can then advise on any improvements that you can make to your network to help reduce leaks and save money.
As well as carrying out an audit of your compressed air system, you should also include regular checks for air leaks in your maintenance routines too.
A comprehensive condition assessment of piping and existing equipment also includes energy consumption and leak measurement. This can result in considerable savings: even in well-maintained compressed air networks, 10 to 20 percent of the generated compressed air is lost due to leaks, in some cases it is up to 40 percent. On average, up to 30% of compressed air generated is lost through leakages.
In some cases it's been know for factories to have a separate compressor just to compensate for leaks. We take this issue very seriously to supply energy efficient sustainable products to use the minimum amount of energy.
Leakage Loss Table (see below)
A precise check of the system pressure can also save energy: is 8 bar really needed or would 7 bar suffice? If it would, then you would save eight to ten percent of the energy costs relating to compressed air &#; without any investment. Heat recovery can also considerably raise the efficiency of the compressor station, as there are many thermal processes where the waste heat can be used. In the case of oil-injected compressors, 94 percent of the energy used can be recovered as heat.
These days, it is no longer possible to decide which compressor technology to use for generating the required compressed air quality without taking new developments and findings into account. High-tech latest generation compressors for generating oil-free compressed air and refined traditional piston compressors both play important roles here. This is particularly true for sensitive production processes, where at least part of the compressed air flow must meet the highest quality requirements, because it is used, for example, as sterile air for ventilating fermenters in the pharmaceutical industry or food production, for filling and packing lines or electronics manufacturing and paint shops.
In these cases, the process and working medium from the air compressor must be 100% oil-free, which poses the question of whether to generate oil-free air directly or by filtering. Whether to use an oil-lubricated air compressor with air treatment equipment to remove contaminants post compression or a completely oil-free compressor has been a debated at length in the past. While removal of the oil aerosols from the compressed air is a complex process, compression in an oil-lubricated compressor is, to date, more efficient. However in many cases completely 100% pureair is required in food and electronic manufacturing applications. Read more about the different compressed air purity classes here.
CompAir has also launched a new air treatment portfolio designed and manufactured entirely in-house to meet the same quality, performance, and efficiency standards as its world-class compressors, so we supply the entire compressed air package, which is the compressor, piping and any air treatment equipment which may be needed after the compression process to achieve the correct compressed air quality.
It is best to approach planning without preconceived opinions such as &#;it has to be a screw compressor/piston compressor/oil-lubricated compressor&#; or &#;we need a 75 kW machine.&#; It is better to carefully consider all the options. If you consult specialists, they should also not be tied down to one specific compressor type. A precise analysis of the current situation and calculation of the current compressed air demand and pressure level, along with that expected in the future, should always be used as the basis for your decisions.
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If the system components, including air treatment, are coordinated with one another and the maintenance expenses have been determined, then the running costs with their high proportion of energy costs, can be estimated with a great deal of accuracy.
As the running costs of a compressed air system are around 80% of the life cycle costs (as mentioned at the start), even investment in advanced energy-saving compressor technology &#; results in lower costs than ongoing operation of a system that is not working optimally.
This means that the energy consumption of a compressor station is the decisive factor in terms of costs. A higher initial investment can result in a rapid return on investment. This can be demonstrated with figures: a typical 75 kW compressor, which runs for 4,000 operating hours per year at 70 percent capacity and 20 percent no-load operation, results in energy costs per year of &#;18,400. This sum is based on an electricity price of 8 ct/kWh.
A diverse range of industries use air compressors to power their processes for a wide variety of applications, you can read more about some of them here.
You can see a screw compressor simulator in action on this page here.
Air compressors are powerful machines that are intended to compress air. In this way, the kinetic energy produced is used for various applications. Compressed air is labelled as the fourth utility. Even though not as ubiquitous as water, electricity, gas, or petroleum product, compressed air plays a vital part in driving our modern world. The compressors are the standard air tools that are used in many manufacturing processes. Sometimes choosing an air compressor for your factory can be a daunting task. It is an arduous process to find the right fit. To find the top air compressor suppliers, you&#;ll need to be specific about your needs and evaluate the vendors before deciding.
Listed below are things to look for in air compressor suppliers.
If you&#;re not sure about your requirements, you won&#;t be able to analyze the quotes offered by the suppliers. The first and foremost step is to determine the criteria for the air compressor as per your requirement. Decide on the type, tank capacity, power, and portability features. Choosing a suitable supplier is the key to attaining your goals. The common criteria to look for in suppliers include quality, price, service, delivery, and installation on time.
Compressors are available in various sizes, ranging from small to large, portable, and stationary types. Rotary screw air compressors are ideal for many industrial applications. Unlike reciprocating compressors, rotary compressors are created for continuous compressed air usage, and it produces a consistent flow of air. Commercial and industrial units generally choose rotary screw compressors due to their durability, reliability, and maximum uptime.
When choosing an industrial compressor, another crucial factor to be considered is the amount of power you require. Every manufacturer measures the capability of the equipment. CFM (Cubic feet per minute) is used to determine the amount of airflow a compressor can produce. CFM requirements may vary from one machine to another. Standard CFM, Displaced CFM, and Actual CFM is the different types of CFM measurements.
Most manufacturers understand the significance of looking for quality suppliers who can give them the product they want. They focus so much on the integrity and capabilities of a prospective supplier. Be sure to verify the supplier&#;s capabilities through reviews and references. A trustworthy supplier should be able to offer an air compressor that meets your requirements.
The quality of the air compressors determines their long-lasting performance. Top air compressor suppliers focus on increasing the efficiency and reliability of the air compressors as they enhance the productivity of the industries. Therefore, it is always recommended to look for durability and quality in air compressors.
It is vital to get itemized quotes from different air compressor suppliers. Then compare the compressor model type, price, quality and consistency of the product. Before deciding on an air compressor, it is essential to assess your needs and plan the budget. Finally, look for viable options before ordering new or used equipment.
Ask the supplier about the service and warranty agreement. It is essential to enquire about the after-sales services before buying an air compressor unit. Fixing air compressor systems is expensive. The best supplier will offer you maintenance and replacement of parts if there is an issue with the product.
Installing the air compressor unit on our own is a complicated process. Enquire the suppliers about the delivery and installation services. Professionals will have explicit knowledge and prior experience in installation and integration. So, make it a point to look for a supplier who delivers and installs the air compressor system at the factories.
In the competitive market, look for a supplier with a trusted and reputed name. A well-known name in the compressor market will provide you with quality compressor units and services. Stay away from suppliers who offer low-quality equipment at low prices.
A supplier without accountability is more likely to deflect responsibility. Work with a quality supplier who takes responsibility for the quality issues and workto the fore to address them quickly. Look for liability signs as a vital trait of a good supplier who can make a world of difference.
Every business strives to perfection to increase productivity at low operating costs. Air compressor through their robust design has enabled many factories to operate at optimum efficiency. In addition, top air compressor suppliers ease your work by providing their extensive support to achieve your energy goals.
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