Denair High-Pressure Screw Air Compressors for PET Blow Moulding

Improve PET bottle production with DENAIR high-pressure screw air compressors designed for efficiency, reliability, and cost savings. These systems deliver oil-free compressed air, pressures of up to 40 bar, and energy-efficient variable speed drive (VSD) technology, making them ideal for demanding blow moulding applications.

Why Choose Denair High-Pressure Screw Air Compressors

In PET bottle manufacturing, compressed air is critical at every stage of production. For instance, pre-blowing typically requires pressures between 10–25 bar, while final bottle forming can reach up to 40 bar. As a result, consistent pressure and stable airflow directly impact product quality and production speed.

DENAIR high-pressure screw air compressors are engineered to provide:

• Pressure Range: Up to 40 bar (580 psi)
• Flow Capacity: 2.86 – 40 m³/min
• Power Range: 55 – 470 kW

Key Features and Benefits of Denair High-Pressure Screws

1. 100% Oil-Free Air (ISO Class 0)

These compressors deliver completely clean, contamination-free air, making them suitable for food-grade and beverage applications where air purity is essential.

2. Energy Efficiency with VSD Technology on Denair High-pressure Screws

The integrated variable speed drive automatically adjusts output to match air demand. Consequently, this reduces energy consumption, lowers operational costs, and improves overall system efficiency.

3. Low Noise and Vibration on Denair High-pressure Screws

Operating at ≤ 85 dB(A), these compressors create a quieter and more stable working environment compared to traditional systems.

4. Long Service Life on Denair High-pressure Screws

Air end lifespan of up to 10 years Advanced materials such as stainless steel and PEEK components reduce wear and extend durability.

5. Low Maintenance Requirements on Denair High-pressure Screws

Compared to piston compressors, screw compressors require significantly less maintenance, reducing downtime and long-term service costs.

Denair High-pressure Screws are Built for Harsh Industrial Environments

Denair high-pressure screw air compressors are designed to perform reliably in demanding conditions. They include:

• Stainless steel air ends and coolers for corrosion resistance
• Advanced water-lubricated cooling system operating at ≤ 50°C
• Consistent performance in high humidity and high-temperature environments

Denair High-pressure Screws’ Smart and Adaptive Operation

Thanks to advanced variable frequency control, these compressors:

• Match air demand in real time
• Reduce wear caused by constant start and stop cycles
• Extend equipment lifespan and improve efficiency

Screw vs Piston Compressors

Screw compressors offer clear advantages over piston compressors in high-pressure applications:

• Higher energy efficiency
• Lower noise levels (≤ 85 dB vs 110–120 dB)
• Reduced maintenance requirements
• Longer lifespan
• Continuous duty operation rather than intermittent use

Ideal Applications

Denair high-pressure screw air compressors are suitable for:

• PET bottle manufacturing
• Beverage production
• Packaging industry
• High-pressure industrial air systems

Customised Solutions for Your Plant

Every operation has unique requirements. Therefore, we provide fully customised compressor solutions tailored to:

• Production capacity
• Space constraints
• Energy efficiency goals

Contact Jaguar Air Compressors

Looking to improve efficiency, reliability, and cost savings in your PET bottle production? Contact our team today:

Western Cape: 083 676 7909
Johannesburg: 011 704 2630