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Oil Free Screw Compressors

CompAir Ultima™

100% oil and silicone-free for clean air critical applications

Ultima™ is CompAir's groundbreaking oil-free PureAir screw compressor with a unique design. It is a brand new compressor range and it utilises a low pressure and high pressure dry screw airend. Each airend is individually driven by a variable speed, permanent magnet synchronous motor, offering exceptional levels of efficiency versus traditional oil-free technology.

CompAir is always improving the best products to be even better and more cutting edge.

Why Choose Ultima™?

The unique patented design delivers numerous benefits to compressed air users:

Unrivalled Energy Efficiency

The Ultima’s advanced 2-stage airend design and high-speed permanent magnet (PM) motors deliver best-in-class efficiency, exceeding IE5 and IES2 standards—significantly lowering energy costs.

Space-Saving, Compact Design

With a 34% smaller footprint than its predecessor and up to 50% smaller than competing models, Ultima maximises valuable floor space while delivering powerful performance.

Direct-Drive, Gearbox-Free Technology

A fully integrated airend-drive system removes the need for a gearbox, reducing friction losses, wear and tear, and overall maintenance needs.

Advanced Heat Recovery for Cost Savings

All models support heat recovery – producing hot water up to 90°C, allowing industries to reuse waste heat for process heating, water heating, and facility warming, dramatically cutting operational costs.

Whisper-Quiet Operation

Ultima creates a quieter working environment designed for ultra-low noise levels, making it ideal for noise-sensitive applications.

Smart Digital Control & Remote Monitoring

The intuitive Delcos XL SE7 Controller provides a real-time overview of compressor performance, remote connectivity, and predictive maintenance insights—enhancing uptime and efficiency.

Eco-Friendly Powered Breather System

Ultima’s advanced oil mist separation technology prevents emissions into the atmosphere, ensuring a cleaner work environment and reducing oil consumption.

Future-Ready Power Upgrades

Ultima can be scaled up with on-demand power upgrades as your business grows, eliminating the need for costly additional compressors.

Multiple energy saving dryer options

For lowest pressure dew points – e.g. Subfreezing, Drum dryer, HOC.

Comprehensive Service & Predictive Maintenance

Built-in iConn connectivity provides proactive service alerts and real-time system monitoring powered by Ecoplant, minimising downtime and ensuring continuous operation. Ultima: Performance, Reliability, and Sustainability – All in One!

Ultima U160 oil free air compressor

Please watch our video below:

The unique drive design

Traditional oil-free compressors use:

• A single motor

• A gearbox to drive both airends

• This leads to energy loss due to friction

Ultima offers a more efficient solution by:

• Replacing the gearbox with ultra-high-efficiency motors

• Using sealed-for-life bearings to reduce maintenance and improve reliability

Each airend operates:

• At variable speeds based on demand.

• Independently controlled by Ultima's intelligent "digital gearbox"

This design ensures:

• Maximum efficiency at all times

• Optimal pressure ratios, adjusting in real-time

Even greater efficiency

  • Regulated speed compressors go into idle run at minimum speed, wasting energy
  • Ultima uses 45% less energy in idle run compared to conventional two-stage compressors
  • A 160kW Ultima compressor uses less than 8kW in idle run
ultima design graph

In-Built Power Upgrades

Are you prepared for your future compressed air needs?

As your business grows, so will your demand! The next-generation Ultima is available now, offering flexible adjustment of power and air delivery to match changing requirements.

  • Much cheaper than an investment in new or additional compressors
  • No waiting period for build and delivery
  • No downtime for installation and commissioning

Premium efficiency airends

Unlike most oil-free airends that quickly lose performance, the German-engineered and manufactured airends in Ultima use a special coating to ensure maximum efficiency and protection throughout the compressor’s lifetime.

Lowest noise levels

Ultima is exceptionally quiet, with 160 kW models reaching just 69 dB(A) (water-cooled) and 70 dB(A) (air-cooled) — far quieter than any comparable oil-free compressor, making it ideal for point-of-use operation.

Best-in-Class footprint

The second-generation Ultima compressors need 34% less floor space than their predecessors and up to 50% less than other brands, allowing easy installation even in tight spaces — saving both space and property costs.

Save up space with new Ultima Compressors

Take the Ultima 360 degree tour

Driving the perfect compressed air solution

Delcos XL SE7 controller Features:

  • 7" high resolution touch screen display (1024 x 600 pixels)
  • 5 standard screens
  • 5 trend graphs available
  • Constant control of all relevant parameters
  • Fully compatible with SmartAir Master
  • Optional Base Load Sequencing
  • Interfaces: RS-485 connectivity, Modbus RTU, integrated Webserver, onboard SD card and embedded iConn

Calculator

Calculate Your Savings

Find out your energy and cost savings when you invest in a latest-generation compressor and a heat recovery system.

CompAir Ultima Oil-free datasheet