The portable air compressor is a multifunctional device […]
The portable air compressor is a multifunctional device. Therefore, it is important to find a suitable compressor to complete the work. The main factor when choosing a compressor is to determine the compressed air to be driven. Once the field technician understands the application, simply match the intended use to the specific compressor size. Moreover, understanding the basic principles of air compressors (ie, pressure and volume) is very important for correct selection.
Pressure and volume
When choosing a compressor, pressure and volume are the two most important variables. Pressure is measured in pounds per square inch (psi), and flow is measured in cubic feet per minute (cfm).
When selecting a compressor, the first variable to study is the rated pressure. This can be derived from the specific model name on the compressor unit. For example, Doosan Portable Power Supply assigns a letter system to each model to understand the working pressure output of each device. For example, the letter P is equal to 100 psi; the letter P is equal to 100 psi. The letter HP is equal to 150 psi. The letter VHP equals 200 psi and the letter XHP equals 350 psi.
The airflow of the compressor can also be identified by the model on the compressor. Most manufacturers use the same numbering system for airflow CFM, so it is easy to identify the amount of air delivered by the compressor. For example, a compressor with a model name of 185 means a 185 cfm machine.
After pressure and flow, the most important component of an air compressor is its engine. Most air compressors are rated for continuous or intermittent operation. For continuous use, the ideal engine margin is 85% of its maximum rated horsepower. For intermittent use, the margin is 93%.
Among all components of the air compressor, the engine wears the most. Make sure to follow the maintenance schedule recommended by the engine manufacturer.
Compressed air can be used to operate pneumatic tools in utility applications, such as repairing electricity, water and sewer lines. The compressor can also be used for pipeline testing to ensure that there are no leaks and to determine whether the pipeline can withstand a certain pressure level. Compressors are also commonly used to power fiber optic cables for directional drilling equipment.
Portable air compressors typically have a volume range of 90 to 1600 cfm and a pressure of 100 to 350 psi. For most of these applications, contractors need compressors in the range of 90 to 250 cfm.
Tools designed for air compressors are listed above for pressure and flow ratings. By knowing these two numbers, you can choose the type of compressor that can provide enough pressure and volume to run the tool.
Most utility applications, including operating light pneumatic tools, require a compressor of at least 100 psi. The more tools one expects to run from a compressor, the greater the amount of compressor required. Any compressor dealer will be able to provide the necessary cfm for each tool and can help determine the compressor size required to meet the job requirements.
Maintenance: one ounce of prevention
Air compressors are sturdy machines that can be used in harsh environments, but they do require care and maintenance. In the long run, strict maintenance procedures will improve efficiency and on-site safety, thereby recovering costs. The following are general guidelines for maintaining best practices.
Routine maintenance may be the most critical, but it has been overlooked many times. Work efficiency is important, but it takes 10 minutes to check the air compressor every day to ensure that the machine continues to run without interruption.
First, first perform a general inspection of the compressor to check for leaks. Then check the coolant level of the engine oil and radiator. Check that all gauges and indicators are working properly, and drain the fuel filter. Check air cleaner service indicator and fuel / water separator drain. Remove the trash can of the pre-cleaner and make sure the radiator cover is secure. Finally, remember to ensure that the fuel system is free of debris and that there is not enough fuel for daily operation.
Add some additional checks in your daily work. The fan and alternator belt should be checked for wear. Check the battery for corrosion and secure connection. If the air compressor is a mobile unit, check the tire every time it is transported.
Every month, carefully check the machine for wear. Parts may need to be replaced. Check hoses and tire lug nuts. Ensure that the automatic shutdown system is working properly, and clean the air filter system, the exterior of the oil cooler, and the engine radiator.
Between 500 and 2,000 hours
Major maintenance depends on the hours of operation of the equipment. The 500-hour mark is the time when all filters need to be replaced; however, if the air compressor is operating in a dirty environment, the air filter should be checked daily and replaced if necessary. After 2,000 hours, the separator element will need to be replaced. If the service air starts to fog or has oil accumulation, it may need to be replaced before 2,000 hours.
The design of the air compressor has flexibility and reliability. In many cases, more is not necessarily better. When using compressed air for efficient work, it is important to consult experts such as dealers to ensure that the compressor selected has the appropriate pressure and volume to suit the application needs.
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