Buying Guide on Oil Free Screw Air Compressors

When considering the purchase of oil-free screw air compressors, there are several factors to take into account to ensure you select the right model for your specific needs.

 

When considering the purchase of oil-free screw air compressors, there are several factors to take into account to ensure you select the right model for your specific needs. Here is a comprehensive buying guide to help you make an informed decision:

 

1. Understanding Oil-Free Screw Air Compressors:

 

Oil-free screw compressors are designed to produce clean, contaminant-free air, which is essential for industries such as food and beverage, pharmaceuticals, and electronics where even trace amounts of oil can contaminate products or processes. These compressors use a pair of screws that rotate without making contact with each other, eliminating the need for oil lubrication.

High Pressure Oil Free Screw Air Compressor

2. Key Features to Consider:

 

- Air Quality: Ensure the compressor meets ISO 8573-1 Class 0 certification for oil-free air, which means zero risk of oil contamination (Atlas Copco ZR series, for example, offers this level of purity) .

 

- Energy Efficiency: Look for compressors with Variable Speed Drive (VSD) technology, which adjusts the motor speed to match air demand, resulting in energy savings of up to 35% (Atlas Copco's VSD technology is a notable example) .

 

- Cooling Systems: High-efficiency coolers are crucial for maintaining the optimal temperature of the compressed air, which can prevent moisture formation and potential equipment damage.

 

- Maintenance: Opt for compressors with easy access to service parts and consider the frequency of maintenance required. Some models offer long service intervals, reducing downtime and maintenance costs.

 

- Control Systems: Modern compressors come with advanced control systems that provide real-time monitoring, diagnostics, and connectivity options for remote management.

 

3. Capacity and Power:

 

Determine the required air volume (measured in cubic feet per minute or CFM) and pressure (measured in PSI) for your application. This will help you select a compressor with the appropriate horsepower and capacity.

High Pressure Oil Free Screw Air Compressor

4. Noise Levels:

 

Especially in environments where noise is a concern, consider the noise level of the compressor during operation. Some models are designed with sound reduction features.

 

5. Physical Dimensions and Portability:

 

Consider the available space and the need for portability. Some compressors are compact and lightweight, making them suitable for applications where mobility is required.

 

6. Cost:

 

While the initial cost of oil-free screw compressors can be higher than oil-lubricated models, the long-term benefits of reduced maintenance and energy savings can offset this. Consider the total cost of ownership, including purchase price, maintenance, and energy consumption.

Oil Free Screw Air Compressor

7. Brand Reputation and Aftermarket Support:

 

Choose a compressor from a reputable brand with a strong aftermarket support network. This ensures access to spare parts, service, and support throughout the compressor's lifespan.

 

8. Environmental Considerations:

 

Oil-free compressors are more environmentally friendly as they eliminate the disposal of used oil and reduce the risk of oil leaks contaminating the environment.

 

9. Warranty and Service Plans:

 

Inquire about the warranty coverage and consider purchasing extended service plans for added peace of mind and protection.

 

10. Customization and Additional Features:

 

Some manufacturers offer customization options and additional features such as integrated dryers, filters, and energy recovery systems to tailor the compressor to your specific needs.

 

By considering these factors, you can select an oil-free screw air compressor that meets your requirements for air quality, efficiency, and reliability, while also providing a good return on investment in the long run.

 

As one of the leading manufacturers of air compressors and air treatment equipment. Comair earn our customers’ trust and satisfaction by manufacturing the superior quality compressed air and gas products for all industries.

 

Do you want to receive more information about Comair oil free screw air compressors? Then we are happy to answer your questions. Fill in the contact form or send an email to https://www.comaircorp.com.