At JustAir, we don’t just supply compressed air. We supply oil-free screw compressors that meet the strictest standards – up to Class Zero air according to ISO 8573-1. For demanding industries where purity, reliability and durability are everything, this is the choice.
| Feature | Benefit to your business |
|---|---|
| Absolute air purity (Class Zero, ISO-8573-1) | No oil particles, fumes or contaminants → critical for food, pharmaceutical, electronics and medical industries. Facilitates certification and quality systems. |
| Lower Total Cost of Ownership (TCO). | Less maintenance, no oil changes, less costly filters, less risk of product contamination or damage. JustAir’s solutions minimize hidden costs. |
| Energy efficiency and pressure maintenance. | Oil-free systems eliminate kickback/pressure drop through oil filters and separators, optimize part-load control and utilize intelligent control technology. |
| Sustainability and environmental impact | No oil use reduces environmental footprint. Less chemical waste, lower emissions. Fits perfectly with industry ESG goals and sustainability policies. |
| 24/7 monitoring and operational security | JustAir doesn’t just come with machines: we provide continuous monitoring via cloud platforms, proactive maintenance, redundancy and fast service. This is how we minimize downtime. |
An oil-free screw compressor operates without oil in the compression chamber. That is, air compression occurs without lubricating oil coming into contact with the air stream – unlike oil-injected or oil-lubricated types. Within JustAir’s Class Zero line, our compressors meet even strict oil vapor, aerosol and fluid requirements according to the latest ISO standards.
Comparison with oil-lubricated compressors:
Oil-injected compressors use oil for lubrication, sealing and cooling, which can lead to traces of oil in the compressed air unless extensive filtration systems are employed.
Oil-free compressors completely avoid this risk, which entails higher initial costs but significant long-term savings and quality gains.
This technology is essential for industries where even minimal pollution can have catastrophic consequences:
Food and beverage production (veripens, packaging, hygiene requirements)
Pharmaceutical and medical industry (medical gases, cleaning, sterile processes)
Semiconductor and electronics manufacturing
Chemical industry where process safety and purity are critical
Business paper production, varnishing and coating processes
In these segments, oil-free solutions from JustAir help meet standards, quality assurance and avoid image damage or product loss.
Smart Sizing and System Design
Not every compressor needs to run at full continuous load. JustAir calculates exactly the flow rates, pressure levels and peak requirements needed so you don’t pay for excess capacity.
2. Advanced partial load control (loadsensing / VSD)
Our oil-free screw compressors are combined with smart controllers and variable speed to maximize efficiency, especially when demand varies.
3. Air treatment and filtration system
Even in oil-free compression, air treatment is crucial: dryers, filters, condensate separators ensure optimum reliability. JustAir seamlessly integrates these components into the compressed air system.
4. Monitoring and preventive maintenance
With JustAir’s 24/7 monitoring, we detect anomalies in temperature, oil vapors, vibrations and so on. This prevents downtime, maximizes availability and extends the life of your installation.
5. Flexible service models
Whether you buy, rent or choose “Air-as-a-Service” (AaaS): JustAir offers options where you only pay for delivered air, including installation, monitoring and maintenance. You don’t invest in hardware, you invest in performance and security.
Purchase cost vs operational cost: An oil-free compressor has higher procurement costs, but lower operational costs: no oil, lower filter/replacement costs, no production loss due to contamination.
Energy consumption: Reduced pressure loss means up to several percent less consumption (depending on profile); this translates into tens of thousands of euros of savings over the life span in large installations.
Environmental gain and compliance: Meet stricter legislation, ISO standards, sustainability reporting; lower CO₂ emissions due to better efficiency and no oil pollution.
At JustAir, we are here to guide you all the way:
Free audit of your current compressed air system: performance, leakage, purity ratings.
Demo or test installation to validate Class Zero air in your process.
Technical data sheets and case studies available by sector (food, pharma, etc.).
Transparent quotations including cost/profit calculation and payback period.
Our preference is for high-speed turbo compressors due to their superior energy efficiency, low maintenance cost and vibration-free operation. For specific applications, an oil-free screw compressor may be a good or better choice.
