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Oil Free Screw Compressors

Compact, Energy-Efficient and Reliable

Oil Free Screw Compressors
100% Oil & Silicone-Free for Critical Clean Air Applications ASK Ultima™ is an advanced oil-free PureAir screw compressor engineered for applications requiring completely clean and contamination-free compressed air. Featuring an innovative design with separate low-pressure and high-pressure dry screw airends, each powered by its own variable speed permanent magnet motor, the system delivers exceptional energy efficiency, reliability, and performance compared to conventional oil-free compressor technologies.
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Benefits Ultima™ - the real deal

ASK Ultima™ is a next-generation oil-free screw compressor engineered to deliver exceptional efficiency, compact design, and the highest levels of compressed air purity for critical industrial applications. Featuring an innovative dual-airend system with independently driven low-pressure and high-pressure airends, Ultima™ provides superior energy optimization, low operating costs, and outstanding performance across varying demand conditions.
  • 100% oil and silicone-free compressed air
  • ISO 8573-1 Class Zero certified air quality
  • Exceptional energy efficiency with reduced running costs
  • Compact footprint with space-saving installation
  • Low noise design for point-of-use installation
  • Independently driven LP & HP airends for optimized performance
  • Intelligent digital gearbox technology
  • Very low idle power consumption
  • High-efficiency heat recovery capability
  • User-friendly onboard monitoring system
  • Available with iConn remote monitoring and IoT connectivity
  • Ideal for food, beverage, pharmaceutical, electronics, and automotive industries

design The unique drive design

Unlike traditional oil-free compressors that rely on a single motor and gearbox to drive both low and high-pressure airends, ASK Ultima™ uses advanced ultra-high-efficiency direct drive motors that eliminate the need for a conventional gearbox. This innovative design reduces friction losses, improves energy efficiency, and allows each airend to operate independently at optimized speeds based on real-time air demand.
The intelligent digital gearbox system continuously monitors and adjusts the speed of both airends to maintain maximum efficiency and optimal pressure performance across the entire operating range. During low-demand conditions, Ultima™ significantly reduces idle energy consumption, using up to 45% less energy compared to conventional two-stage compressors, helping lower operating costs and improve overall system efficiency.

Energy savings Driving the perfect compressed air solution

The ASK Delcos XXL controller features a high-resolution 8-inch color touch screen display designed for simple, intuitive, and user-friendly operation. With clearly organized multilingual menus and advanced visual monitoring, the system enables easy access to all compressor functions and operational data.
The intelligent control system continuously monitors critical operating parameters to ensure safe, reliable, and energy-efficient compressor performance while helping reduce operating costs, improve system reliability, and protect your long-term investment.

iConn Industry 4.0 Solution

ASK Ultima™ compressors are fully iConn-ready, providing advanced real-time remote monitoring and intelligent system analysis for optimized compressor management. The smart iConn platform continuously tracks operational performance, delivers detailed system insights, and helps improve production planning, efficiency, and reliability.
By proactively identifying potential issues before they become major problems, iConn helps reduce downtime, lower maintenance costs, and ensure maximum operational uptime while keeping users informed with real-time performance data, analytics, and system statistics.

Technical Data
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