Advantages & Disadvantages of a Rotary Screw ...

Published: 05/04/

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Advantages and disadvantages of a rotary screw air compressor 

It can be difficult to find the right air compressor for your application so understanding the advantages and disadvantages of the different types helps to find the correct air compressor.

Rotary screw air compressors, or Screw compressors, are a common type of air compressor so let&#;s have a look at the pros and cons of this type of compressor.

What is a rotary air compressor? 

Rotary screw air compressors are a newer and improved type of air compressor when compared to others such as reciprocating air compressors. These compressors work using positive displacement, with rotary movements inside used to compress the air. Inside the compressor is a male and female rotor which rotate in opposite directions. As the air flows along the rotors, the air is compressed as the space between the rotors decreases. This reduction in volume provides compressed air which can then be used for the relevant application. 

Advantages of rotary screw air compressors 

Screw air compressors provide a number of advantages which is what makes them a popular choice across a wide range of applications and industries. 

Durable and long lasting 

Rotary screw air compressors have a reputation for their long lifespan which is often much longer than other air compressors. If you buy a rotary screw air compressor, you can expect a typical lifespan of around 60,000 to 80,000 hours with little to no capacity reduction. 

Quiet operation 

Unlike many other air compressors, screw air compressors are known for their quiet operations so this is important to consider if your application requires a quieter air compressor. 

This is a huge contrast to other compressors that make a thud sound due to the action of the piston for the compression process. As screw compressors do not contain a piston operating system, this noise is completely removed. 

High demand capabilities 

Unlike reciprocating air compressors, rotary screw compressors can operate continuously. This means there is no need to turn the air compressor off so the pistons can rest and cool and there&#;s no need to wait for an air receiver tank to fill before you can start using the air. 

Screw compressors can run all day without wearing out any critical components and they run at a lower temperature so overheating is not a problem. This is significant to consider if your application requires a steady stream of air. 

It also means that a rotary screw compressor will have no problem with meeting consistently high demand. 

Energy efficient 

Screw air compressors are more energy efficient than other types of air compressor and they generate much less heat too. 

Cleaner air 

The male and female rotating screws within the compressor are effective at sealing in lubricating oil which means there is very little oil carried into the end product. This results in cleaner and drier air which makes these compressors much better for application requiring low air moisture and low oil particulate. 

Range of applications

These compressors are perfect for a range of applications including: 

• Heavy-duty industrial applications

• Manufacturing facilities

• Autobody and auto repair shops 

Within these applications, production often requires the continual use of multiple tools at the same time and a screw air compressor is the best compressor to meet these needs. 

Disadvantages of rotary screw air compressors 

Whilst rotary screw air compressors have a range of advantages, it&#;s also important to consider the disadvantages to make sure the compressor you choose fits within your budget and your application. 

High initial cost 

Rotary screw air compressors often come with a high price tag which is why many people prefer to opt for a reciprocating air compressor instead. The key reason for such a big difference in price is that screw air compressors are more durable and have a much longer lifespan. 

Despite being twice the cost of other compressors, they also last four times as long and produce more air. This makes them the perfect investment if you need to use compressed air over the long term for your business. 

Specialised maintenance required 

Every air compressor requires servicing on a regular basis but the nature of screw compressors needs a higher level of expertise. Rotary screw compressors have a more complex system inside than other compressors so maintenance will need to be performed by an expert maintenance person or someone who is highly skilled with air compressors. 

At Air Supply, we provide regular servicing and our reliable team of service technicians can help you make sure your compressor is kept in the best condition. 

If you are looking for more details, kindly visit Comair.

If you&#;d like more information on how a rotary screw air compressor could benefit your application, please contact our expert team. 

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Oil Free Air Compressors in Singapore and Beyond

There are several companies that manufacture or distribute oil free air compressors in Singapore, but few to the rigorous standards of BOGE Singapore. With several alternative designs of oil free air compressors available, it can be daunting for customers when deciding whether an oil free air compressor is the right choice for them.

With this in mind, read on to explore the pros and cons of oil free air compressors and why BOGE Singapore&#;s range of compressors is the go-to option for both multinational businesses and smaller companies.

The Pros of Oil Free Air Compressors

There are many different types of air compressor. This makes selecting the correct model complex, especially in growing industrial sectors such as Singapore and the greater Asia-Pacific region. Since the Asia-Pacific region is expected to account for over two-thirds of global growth in the next few years, the necessity for innovative air compressors which are easy to install, maintain, and used in diversified operation are required. But just what are the advantages of using such a compressor?

Broadly speaking, the debate about which compressors are best, boils down to oil free air compressors vs oil lubricated compressors. Each category of air compressor provides its own advantages and disadvantages. When it comes to highly sensitive environments such as hospitals, pharmaceutical manufacturing, semiconductor industries, laboratories, and food production, oil free air compressors are usually chosen over oil lubricated compressors because there is no possibilities of oil contamination in the compressed air.

Countless manufacturers, producers, and healthcare professionals are turning to oil free air compressors because of this non-hazardous, safe form of air compression. Because the compressed air is as clean as possible, lacking any particulate contamination, oil free compressors contain other advantages including:

• Eliminating harmful emissions
• Protecting the environment from pollution
• Significantly reducing running costs.

This last advantage of oil free air compressors is of particular interest to businesses and others who do not wish to squander their budgets. Reduction of costs is achieved through:

• High quality and consistent oil free compressed air
• 100% oil free &#; no oil contaminations in the compressed air
• 100% Safety against oil floats
•  no oil in the condensate and easily dispose to common drain
•  easy to maintain &#; no additional filtration down the airline is needed
•  less pressure losses on filter systems that helps to save energy
•  environmentally sound compressed air production

The Cons of Oil Free Air Compressors

Buyers are often confused by the oil free air compressors vs oil lubricated air compressors debate. At BOGE Singapore, we recognise that each manufacturing or processing environment requires a specific set of tools to get the job done as efficiently and as reliably as possible. That is why we produce a wide range of both oil free air compressors and oil lubricated compressors. It is not a case that one is better than the other, but rather that both designs are best used for different jobs.

This debate leads into the question of what sort of disadvantages are attached to oil free air compressors, and when to look for an oiled model instead. Disadvantages of using oil free air compressors include:

• Oil free air compressors tend to be higher in cost of investment than oil lubricated compressors. This is due to high technology used in building a perfect compressor
• Oil free air compressors generate high temperatures during compression and need more bigger coolers to maintain the reasonable temperature at compressor outlet, due to none use of Oil in compression process .
• Oil free air compressors can produce more noise and need better sound absorbing panels.
• Most sizes of oil free air compressors will not have low specific power consumption in comparison with Oil lubricated compressors.

BOGE Singapore Oil Free Air Compressors

What sets BOGE Singapore&#;s oil free air compressors apart from the competition, is that they have been designed from the ground up to avoid the traditional disadvantages of an oil-free design. BOGE&#;s engineers have created the peerless BOGE SO-2 series air compressors, from 45-315kW range which is a new technological milestone for oil free air compressors in Singapore. Even the BOGE screw compressors such as the Bluekat come in 100% oil-free in the frame size of 30-45kW, eliminating expensive condensate disposal. The Bluekat is ideal for producing class 0 rated compressed air at an unbeatable price point

The Boge Oil Free series includes BOGE&#;s new scroll compressor models. These 100% oil-free air compressors from 4 -22kW have been designed for environments where oil-free air is essential. While other manufacturers sell oil free air compressors which produce significant noise, BOGE&#;s scroll compressors come complete with cutting-edge super-silence whisper-quiet design. This also includes lower vibrations, lower maintenance, and ease of use through our new state-of-the-art controller.

For heavy duty manufacturing, BOGE has also produced new piston designs which previously had to be oil lubricated. Now, with compressors like the new PO series, customers can be confident that they can run their BOGE compressor in continuous mode, while producing oil-free compressed air at maximum efficiency.

BOGE has always been about innovation. The bold new turbo compressor design takes this one step further by turning innovation into revolution. There simply is no other oil free air compressor like it in Singapore or anywhere else in the world. The Turbo compressor catapults the world of compressed air into a new era, with unrivalled efficiency and low noise levels. BOGE Kompressoren&#;s turbo compressor design is the future of oil free air compressor technology. It produces oil free class 0 air, is lightweight, and its titanium impeller is built to last. Made in Germany and distributed in Singapore, BOGE high speed turbo technology beautifully combines the engineering excellence of Germany, with the support and distribution infrastructure of Singapore, offering the entire Asia-Pacfic region access to cutting edge oil free air compressor technology at an incredible price point.

While traditionally oil lubricated air compressors maintained an advantage over oil free air compressors in terms of lower cost of ownership,durability and heavy duty performance, BOGE has broken through the glass ceiling and produced a wide range of oil free air compressors which combine power, performance, and efficiency like no others before. These compressors are an excellent choice for those requiring class 0 compressed air, and BOGE continues to offer the best performing and highest quality oil free air compressors in Singapore, Asia, and the rest of the world. If you would like to know more about how BOGE oil free air compressors can reduce your costs and improve your output, contact one of our highly trained advisors today

If you want to learn more, please visit our website Compressed Air Treatment Equipment.