Products

Rotary Screw - Oil-Free
- GARDNER-DENVER ULTIMA SERIES

Oil-less variable speed screw technology (75-160 kW)

Ultimate oil-free efficiency – guaranteed

Ultima contributes to bottom line cost savings in many ways. Not only do they deliver outstanding efficiency and significantly lower lifecycle costs, the Ultima requires on average, 3.4 m³ less space (or up to 37% less floor space) than a conventional two-stage oil-free compressor. This allows easy installation in the smallest possible space – not only a benefit where space is limited – it also translates into property cost saving.

Ultima™ – The real deal

  • 100% silicone-free, guaranteed
  • Specifically designed for use in pure-air critical applications
  • Avoids contamination and provides the highest air quality standards
  • Independently tested and certified
  • For many industries such as ‘food & beverages’, ‘pharmaceuticals’ and ‘electronics’, air purity is a critical factor where even the smallest drop of oil risks contamination that can have severe consequences such as:
  • Product spoilage
  • Production downtime
  • Damage to production equipment
  • Damage to brand reputation
  • 100% oil and silicone free
    Highest levels of air quality
  • Highest efficiency levels
    Low running costs
  • Low noise design
    Installation at point of use
  • LP & HP airends individually driven
    Energy efficient across the flow range
  • Very efficient heat recovery
    Most efficient machine
  • Easy installation
    No ducting required
  • On-board monitoring
    Very user-friendly
  • Available with iConn remote monitoring
    IoT connected

Cost reducing innovative design

With each compression stage being driven by individual, highly efficient, permanent magnetic motors with two separate tairends – unlike traditional two-stage compression technology – the on-board controller perfectly and intelligently matches demand efficiency by independently controlling the speed of each stage.

By varying the speed of the oil-free compressor, the Ultima achieves the highest levels of productivity across the full turndown range.

This allows the compressor to use 13% less power than traditional technology equating to an average saving of up to €8,000* per annum.

*based on average running hours and conditions

Airend performance – the perfect balance

Unlike conventional oil-free compressors that have both stages controlled by a single drive – as the machine speeds up or slows down, demand changes and efficiency is affected – Ultima utilises two high speed, highly efficient motors that combine with the high efficiency airends.

Maximum efficiency is provided by the intelligent on-board controller, which perfectly matches the delivery ratio by individually controlling the speed of each stage.

Optimum heat recovery ultimate cooling

Using a closed loop water cooling system to cool all major components, and with separate water cooling for the inter and after coolers, Ultima compressors offer the highest outputs for heat recovery – approximately 10% more than comparable compressors on the market. Ultima also offers the option of air-cooling.

Premium productivity

Where the majority of oil-free airends on the market quickly succumb to performance deterioration, Ultima utilises German engineered and manufactured airends incorporating a special coating to ensure life-long protection of the compressor and maximum efficiency.