Several industries such as medical, chemical and textiles require high air quality. Due to the loud noise generated by industrial air compressors at normal working levels, they are not feasible in workplaces that need to use the equipment for a full working day. Instead, they need water-free, oil-free and even silent or low noise air compressors.
The best types of air compressors are both silent and oil-free. Oil-free compressors do not need oil since their cylinders are pre-lubricated and have a Teflon coat that maintains this lubrication. The demand for an oil-free, silent air compressor has grown with the expansion of pharmaceutical, food and other industries.
In this article, we give you insight into what silent air compressors are, how they work and what you will benefit by choosing them.
What are Silent Air Compressors?
A quiet air compressor runs without noise and is also fully automated. It combines extra noise lubrication and machine precision to minimise the sound it produces. This design ensures that this kind of air compressor is environmental-friendly since noise pollution is absent.
An air compressor is considered silent if it operates at less than 75 dB, 60 dB is considered the safest noise level. 40 dB air compressors are considered low noise and are often used domestically.
This categorisation shows that the air compressors do produce sound. However, the sounds which it produces are very low, and most people will not notice it. Primarily designed for use in enclosed areas, low noise air compressors allow people to enjoy conducive workspaces while getting good air quality.
Working Principle of Low Noise Air Compressors
They are designed with noise insulation features, and their peripheries have a cover that dampens sound immensely. Silent air compressors come in portable or stationary and oil-free or oil-lubricated versions. There are also different weights, tank sizes, operating pressures and horsepower, but the basic functional principle remains the same.
Buyers have the option of selecting either a single-stage or dual-stage belt-driven mechanism for delivery of compressed air. Internally, the compressors have noise-cancelling components that reduce sound conduction from one unit in the system to another. Any noise that may have escaped from inside is prevented from escaping by the cover, externally.
Besides this, the compressors are crafted with high-quality materials that assist the machine in less noise generation. Other features that result in their noiselessness include:
- A transparent oil level indicator to avoid unwanted noise during routine maintenance and checks.
- Piping systems that come with vibration and sound insulation.
Benefits of Silent Air Compressors
There are several benefits, including:
- Clean Air
The importance of clean air cannot be overemphasised. Sadly, the air we breathe is often contaminated with all kinds of toxins that could harm us. Silent air compressors dispense clean air, reducing the risk of respiratory and other issues associated with low-quality air.
- No hearing difficulties
Noise suppression systems eliminate compressor noise production through a series of insulators.. Exposure to loud noise for extended periods can result in hearing problems, which is why it is imperative to have decibel levels reduced where possible. Sounds that are above 90dB can potentially cause chronic hearing damage to people if they are left exposed to frequent loud noises above that level.
- Minimises Risk of Injury and Equipment Damage
People who work in an environment where they struggle to communicate, or where noise gets in the way of the workflow can increase the risk of harm to oneself or the machine. Missing just one instruction due to noise obstruction can be the difference between a major injury and a successful project. Quiet compressors indirectly minimise occupational hazard.
- Improved Productivity Levels
The focus of workers influences productivity. When noise levels are low, employees can concentrate and execute tasks with greater efficiency. With excessive noise eliminated, communication between teams is easier, leading to higher success rates with workplace duties.
The majority of low noise air compressors are oil-lubricated meaning they can withstand harsh conditions. With regular maintenance, your machine will enable workers to carry out their jobs without hassle. These kinds of compressors are less likely to wear off because of their more superior build when compared to their louder variants. This is why it is a common pick for heavy-duty, industrial use.
- Air Stream Technology
These are not available in all silent air compressors, but you should be on the lookout for one which has this feature. With the application of angled irons, pumps are elevated to allow air to be drawn under it from the flywheel. This technology increases the level of cool and extends the life of your compressor.