Compressor FAQ

Yes, SK Compressor Service rents out compressors ranging from 0.75 kW to 200 kW. We offer screw compressors, mobile gasoline or diesel compressors, and oil-free compressors, complete with all necessary accessories. Filtration meets ISO standards, and we welcome all rental requests, from small jobs to complete, customized utility projects. 

There are many different levels of quality when it comes to compressed air, which refers to contaminants such as dust, moisture, or oil that may be present. These types of contaminants can have a significant impact on the effectiveness of compressed air and how it can be used. Sectors such as the food industry, the pharmaceutical industry, and the healthcare sector require clean, pure, and contaminant-free air.

The international standard ISO 8573-1 classifies compressed air into different quality levels based on its intended use. These classes help you determine what type of air treatment equipment you need to achieve the required air quality for your application. High-quality compressed air is often necessary to prevent damage to equipment, maintain product quality, and ensure safety in sensitive environments.

Refrigeration dryersuse environmentally friendly refrigerant gas to cool the compressed air and then remove the condensate from the air. With this technology, we achieve a pressure dew point (PDP) of up to 3 °C.

Adsorption dryersuse an adsorption material called a "desiccant" to remove (adsorb) moisture from compressed air. With this method, we can achieve a PDP of -40 °C or even -70 °C

If the ambient temperature drops below 0°C, an adsorption dryer is required to prevent ice formation in pipes and equipment.

No, condensatefrom the compressed air coming out of the compressor must still be treated to comply with local environmental laws.

For this process, you will need anoil-water separator. It separates the water from the oil, after which the treated water can simply be drained into the sewer system. 

The oil is collected in a special waste container and must be disposed of as chemical waste. 

The frequency of inspections depends on factors such as usage intensity, system pressure, the environment, and the type of compressor. A general guideline is:

• Daily: check pressure, temperature, and any unusual noises

• Monthly: visual inspection, check filters

• Annually or every 1,000–2,000 operating hours: comprehensive maintenance
  The brand KAESER emphasizes that regular inspections and maintenance are crucial for safe and reliable operation.

Brands such as KAESER are known for their quality, reliability, and low lifecycle costs (“total cost of ownership”). By referencing a high-end manufacturer, you reinforce the impression of expertise and reliability associated with SK Compressor Service.

In the event of malfunctions, it is important to respond quickly to prevent production interruptions. SK Compressor Service offers 24/7 emergency service (through service partners, if necessary). For equipment maintenance and parts, you can also check with KAESER’s global service organization, for example.

If your application requires high-quality compressed air (e.g., food processing, pharmaceuticals, semiconductors), an oil-free solution is recommended. KAESER states that oil-free screw compressors are ideally suited for such “sensitive processes.” SK Compressor Service provides consulting services and performs maintenance on both oil-free and oil-lubricated systems.

In addition to purchase costs, energy consumption and maintenance/parts play a much greater role. KAESER states that energy consumption typically accounts for the “largest share” of lifetime costs. Through smart maintenance and energy optimization, you can save on these costs.

A few points to keep in mind:

• Rising energy costs without growth in production

• More vibration, noise, or heat than usual

• Pressure drop in the system or unexplained shutdowns

• Condensation problems or oil contamination in the compressed air
  If you notice any of these signs, it’s time for an inspection and possibly maintenance.

In short: piston compressors are often suitable for smaller capacities or workshops, while screw compressors (such as those from KAESER) are used for continuous compressed air consumption in industrial settings. SK Compressor Service can service both types of systems.

SK Compressor Service offers maintenance contracts, emergency repairs, inspections, and service agreements. We can also partner with OEM brands such as KAESER to provide original parts and “full-service” maintenance.

• Choose the right system capacity right away (not too large)

• Schedule regular preventive maintenance

• Ensure that the compressed air is properly filtered and dried

• Monitor energy consumption and optimize it wherever possible

• Work with an experienced provider like SK Compressor Service, and consider taking advantage of promotions from brands such as KAESER for analysis and advice.