KAESER High-pressure Booster Compressors

Do you require high-pressure compressed air for specific areas in your production process?

Installing booster compressors at strategic points in your system is a far more efficient solution than delivering high-pressure air across an entire facility.

We’re an experienced, trusted partner for high-pressure air compressors, offering advanced piston/reciprocating booster compressed air and on-site nitrogen generator system solutions for a wide range of industries and applications, ensuring optimal performance, efficiency, and reliability.

Choosing the right booster compressor is essential for achieving your operational goals. Our specialist engineers work closely with customers to determine the ideal booster compressor solution based on your specific working and maximum pressure requirements, desired capacity or flow rates, and the unique demands of your application.

We work with you to simplify the selection process. Our expert projects team designs systems and delivers equipment tailored to your needs, so you get the most efficient, cost-effective results for your business.

KAESER CN C and DN C Series High Pressure Boosters

These complete packaged systems deliver an efficient compressed air supply. With a compact design and robust enclosure, the CN C and DN C Series boosters optimise cooling airflow and provide improved maintenance access.

The advanced SIGMA CONTROL 2 controller offers multiple monitoring and control options with a range of interfaces and is fully compatible with master control systems, enabling dynamic control.

On variable speed SFC versions of the DN C Series, compressor flow rate is matched to the actual air demand of the application, which means that only as much energy is consumed as is needed to produce the exact amount of high-pressure compressed air required.

CN C Series performance parameters:

• IE3 Drive motor: 7.5 – 22 kW
• Initial pressure: 3 – 10 bar
• Final pressure: 10 – 45 bar
• Flow rate: 0.8 – 8.0 m³/min

DN C series performance parameters:

• IE3 Drive motor: 22 – 45 kW
• Initial pressure: 3 – 10 bar
• Final pressure: 10 – 45 bar
• Flow rate: 2.26 – 19.60 m³/min

Optional Features:

KAESER boosters are available as air-cooled or water-cooled versions. CN C series high-pressure boosters are delivered as standard with air-cooling.
A version equipped for nitrogen compression, sealed to prevent outside air from penetrating, is also available (N2 version). Read more about our cost-effective on-site nitrogen generator systems.

Applications:

PET bottle production, process air applications, nitrogen generation, and high-pressure testing facilities (e.g., pressure tests, burst pressure tests, and pulse tests on brakes, coolers, etc.).

Benefits:

• Compact footprint – no need to compromise on performance, reliability, or energy efficiency
• Minimal installation requirements – CN C and DN C boosters are delivered ready for connection to a power supply
• Save on service costs –  generous front access and innovative component layout reduce the time and effort required for maintenance
• Energy cost savings –  High-quality IE3 Premium Efficiency drive motors deliver unparalleled efficiency for low power consumption

KAESER N-Series High Pressure Boosters

High-performance N-Series reciprocating compressor boosters offer a wide variety of versions with varying outputs, so you’re sure to find a booster perfectly suited to your application and needs.

N-Series boosters increase system pressure in specific locations, up to 45 bar. KAESER has an extensive range of reciprocating booster compressors that work in perfect harmony with KAESER rotary screw compressors and SIGMA PET AIR stations.

The N-Series boosters are available with one or two cylinders and operate within the following performance parameters:

N-Series performance parameters:

• Initial pressure: up to 13 bar
• Discharge pressure: up to 45 bar
• Flow rate: 0.27 – 5.49 m³/min

Applications:

Compared to designing the entire compressed air supply system for higher pressure, the use of boosters is significantly more cost-effective for all applications that require process air with a higher degree of compression than the normal control air and supply air at specific locations. PET bottle production is an excellent example of such applications.

Advantages:

• Continuous high-pressure operation – Oil pressure lubrication and intensified cylinder cooling ensure both long service life and low maintenance requirements
• Exceptionally low oil requirement –  High-quality cylinders are plateau-honed and feature an extra layer of wear protection. This ensures low oil consumption over the entire service life
• For especially cool compressed air – The compressed air aftercoolers on the three-cylinder boosters are equipped with separate fans, which ensure low compressed air discharge temperatures*
• Energy cost savings –  High-quality Premium Efficiency electric motors deliver unparalleled efficiency for low power consumption

*N-Series boosters can be additionally equipped with water-cooled aftercoolers to attain even lower temperatures

KAESER SIGMA PET AIR

The complete system for PET container production, the SIGMA PET AIR booster package combines blow and control air production in a compact operation-ready system.

An energy-efficient air-cooled rotary screw compressor produces the control air while simultaneously serving as a pre-compression stage for the blow air. The blow air booster, system controller, and all the compressed air treatment components for both pressure systems are installed operation-ready on a high-quality base frame.

KAESER has an extensive range of reciprocating booster compressors that work in perfect harmony with KAESER rotary screw compressors and SIGMA PET AIR stations.

SIGMA PET AIR performance parameters:

• Flow rate: up to 2772 m³/h (46.2 m³/min)
• Blow Air: up to 45 bar

Applications:

When it comes to reliability, cost-effectiveness and compressed air quality, the SIGMA PET AIR complete booster system is the perfect choice for discerning operators of PET container blow-moulding equipment.

Advantages:

• Prompt delivery, ready for immediate operation – Installation on a base frame reduces the unit footprint whilst also streamlining transport and setup. Containerised systems are also available.
• Unparalleled cooling without high cost – The majority of KAESER boosters are equipped with air-cooled aftercoolers. In air-cooled units, a separate cooler with its own fan motor ensures minimal temperature differential (ΔT) between the intake air and compressed air, allowing customers to dispense with expensive water-cooled systems.
• Benefit from low maintenance requirements – Since the SIGMA PET AIR system has only two compression stages (rotary screw compressor and booster), significantly less service is required compared to multi-stage high-pressure reciprocating compressors with atmospheric compression.

KAESER SIGMA PET AIR systems comprise five components:

1. Energy-saving rotary screw compressor
2. High-efficiency booster
3. Class 1 compressed air quality
4. Complete air receiver package
5. Automatic KAESER control