Ingersoll Rand IRN110K-OF Oil-Free Rotary Screw Air Compressor
Technical parameter information: Data sheet
Product Features
• Product OverviewIngersoll Rand's Nirvana™ Series two-stage variable frequency oil-free screw air compressors feature a time-tested design incorporating multiple patented technologies. They utilize a robust two-stage compression module, Hybrid Permanent Magnet Motor (HPM™), UltraCoat™ super coating technology, and a unique triple-seal design. Paired with a high-efficiency triple-tube parallel cooler and an advanced intelligent control system, these superior designs and configurations ensure our products deliver exceptional reliability, providing users with safe and efficient zero-grade oil-free compressed air.
• Product FeaturesRugged and durable two-stage compression module
Ingersoll Rand compressor air ends are renowned worldwide for zero downtime and minimal maintenance costs. The Nirvana™ series employs a two-stage compression air end. Dual-screw compression reduces thermal load on each stage, while the second-stage rotors utilize stainless steel to resist moisture corrosion. The rotor surfaces are mechanically sprayed with Ingersoll Rand's patented UltraCoat™ coating, ensuring excellent sealing between rotors and guaranteeing sustained air delivery without volume decay.
• Unique UltraCoat™ UltraCoatIngersoll Rand's unique UltraCoat™ super coating utilizes a molybdenum disulfide matrix compound, offering high hardness and exceptional adhesion while providing outstanding oxidation resistance. The rotor coating is applied via robotic spraying, ensuring uniform coverage across the rotor surface. Prior to coating, the screw rotor undergoes specialized shot peening to enhance surface roughness, facilitating superior coating adhesion.
The exceptional performance of the UltraCoat™ coating enables users to achieve sustained air delivery without volume decay over extended compressor operation. Most manufacturers use softer Teflon coatings applied non-uniformly without robotic spraying. During continuous operation, these coatings gradually peel off due to thermal expansion/contraction and moisture corrosion, leading to increased rotor clearance and reduced airtightness. This typically causes an 8%-10% air volume decay, increasing overall unit operating costs.
Taking a 200kW unit operating for 8,000 hours as an example, an 8% air volume reduction translates to:
8% × 200 kW × 0.7 RMB/kW·hr × 8,000 hrs = 89,600 RMB in additional electricity consumption losses.
• Superior sealing design ensures oil-free compressed air chambers
The unit employs a unique triple-seal design, completely isolating the lubricated bearing oil circuit from the air circuit to guarantee oil-free compressed air.
- SS Air Seal – Prevents air ingress into oil circuits (bearing housings / gears)
- Labyrinth Seal – Prevents oil ingress into the AIR END
- Oil Drain Seal – If leakage occurs in the above seals, the oil drain seal vents oil to the atmosphere
• Integrated Variable Frequency Drive
Advantages: The advanced drive system enables Nirvana to deliver intelligent control, soft starts, elimination of current surges, and extended component lifespan, significantly enhancing system reliability. Nirvana is the unit that integrates all these capabilities.
• Optimal Flow at Any Pressure Point
Advantage: Nirvana oil-free variable-speed screw compressors utilize the XE Intellisys™ controller to optimize host speed regulation. The compressor precisely adjusts air volume (with a maximum adjustment range of 50%) according to different pressure setpoints, while pressure regulation spans 65-150 psig (4.5-10.3 barg). Therefore, the Nirvana oil-free variable speed screw air compressor is not restricted to operating at a single pressure. It provides customers with maximum flexibility for their air consumption needs.
• Stable Pressure Control
Advantage: Nirvana leverages the integration of cutting-edge technologies (Intellisys™ controller/sensors/inverter/hybrid permanent magnet motor) to ensure target pressure fluctuations remain within 0.1 barg. Because Nirvana maintains stable pressure under any air consumption conditions, it prevents system overpressure, thereby saving energy. It is well known that every 2 psig increase in system pressure requires a 1% increase in system energy consumption (every 1 barg increase requires a 7% increase).
• Hybrid Permanent Magnet Motor
Advantages: A key feature of hybrid permanent magnet motors is their removable stator windings, enabling on-site replacement. Additionally, their compact size and high power output (occupying only 33% of the volume of traditional variable frequency motors while delivering three times the magnetic flux) allows direct connection to and drive of the host's rotor. Finally, their unique design eliminates wear components and motor bearings.
• Unlimited Start/Stop Cycles
Advantages: Hybrid permanent magnet motors can withstand unlimited start/stop cycles to meet air demand without damaging the motor, unlike conventional motors. Nirvana shuts down when unit air consumption drops to its lowest point, eliminating the energy waste caused by unloading in traditional air compressors.
• Increased Motor Air Gap
Advantage: The enlarged motor air gap enables HPM motors to operate reliably at ambient temperatures up to 115ºF (46ºC), eliminating shutdown issues. Furthermore, HPM standard motors feature a service factor of 1.25 (1.21 for 132kW and 160kW models), significantly extending motor lifespan.• AIR END Super Coating Process
Advantages: This patented process involves a robotic arm applying an organic high-temperature resin embedded with PTFE MoS2 molecules onto rotor surfaces that have undergone special surface treatment (phosphating). The coating is then heat-treated. This process firmly embeds the coating within the rough metal surface, making it extremely resistant to peeling. The Super Coating prevents particle abrasion and thermal corrosion, ensuring sustained high performance over extended periods. It also extends the service life of the host rotor, significantly reducing lifecycle operating costs.
• Triple-Tube Parallel Aftercooler
Advantages: The air-cooled aftercooler utilizes three parallel pipes to pre-cool compressed air before entering the aftercooler. The compressed air is evenly divided into three sections entering three aftercooler modules. This design not only reduces pressure loss but also prevents thermal stress damage to the cooler. Consequently, the cooling system significantly lowers operating costs through its thermal energy savings and minimal maintenance requirements.
Air Intake Filter
• Tank-Type Air Intake Filter
Advantages: Nirvana employs a two-stage air intake filter system with 99.99% filtration efficiency and 3-micron precision. The tank-type air intake filter is suitable for all industrial environments. Additional filtration options are available for customers requiring higher precision.
• Cooling System, Centrifugal Fan (Fan)
Advantages: Nirvana employs centrifugal fans for unit cooling. Centrifugal fans deliver exceptional cooling performance, efficiently transferring heat away from the unit. Additionally, centrifugal fans can withstand a maximum back pressure of 1/2" (124.5 Pa).
• Ntegrated Centrifugal Fan Variable Frequency Drive
Advantages: The cooling system intelligently adjusts centrifugal fan speed by comparing three values: secondary inlet air temperature, unit discharge air temperature, and ambient temperature. Regulating centrifugal fan speed offers several key benefits: a. Extends main bearing life by providing stable lubrication, b. Significantly increases energy efficiency through enhanced cooling of the intermediate and aftercoolers, c. Reduces unit operating noise during partial load conditions. (For example, at an ambient temperature of 85ºF (29ºC), discharge temperature of 100ºF (38ºC), and 70% load operation, noise levels drop to 74dBA).
• Suitable for 100% continuous load operation
Advantages: A robust and reliable host unit, hybrid permanent magnet motor, and integrated variable frequency controller ensure Nirvana can operate at full load 24 hours a day, 365 days a year.
• Easy Maintenance
Advantages: All wear parts in Nirvana are conveniently located within easy reach for effortless maintenance. Nirvana also provides proactive support during operation—its intelligent controller estimates maintenance intervals based on usage patterns. When equipped with our Intelliguard system, Nirvana enables remote monitoring.
• Microprocessor Controller
- Air Audit
Advantages: Nirvana oil-free variable-speed screw compressors' intelligent control system measures unit performance over specific periods. This includes data such as average air volume, average power consumption, and energy usage. It demonstrates the effectiveness of Nirvana control and promptly alerts you to system issues.
- XE Smart Controller (90-300kW)
The Ingersoll Rand X Series controller features an intuitive high-resolution color display and network connectivity for enhanced communication, connectivity, and control. Key advantages include: remote access and control of compressors from anywhere, with high-intensity illuminated indicators accurately displaying compressor status at a distance. Sequential control of up to 4 XE-controlled compressors without additional hardware. Supports Chinese display with language interface selectable from 30 languages. Real-time clock for start/stop scheduling. Network communication and control. Large buttons and intuitive menus simplify compressor operation. Built-in performance analysis graphs and visual trends. Access automated diagnostic logs via standard web browsers. Automatic email alerts for errors and warnings.
• Lifetime Operating Costs
When purchasing air compressors, traditional costs (i.e., purchase price + operating/maintenance expenses) account for only 20% of total expenses, while energy consumption constitutes 80%. Compared to conventional compressors, Nirvana™ single-stage units deliver at least 28% energy savings.
• Energy Efficiency
A traditional fixed-speed air compressor experiences significant efficiency degradation when air demand fluctuates. Nirvana™ maintains maximum efficiency at any load rate. Its motor truly operates at peak efficiency while being variable speed, delivering compressed air at constant pressure regardless of demand. Specifically: between 25% and 100% load, Nirvana™ consistently outputs compressed air at constant pressure with maximum efficiency.
• Equipment Manufacturing and Inspection Standards
Reference Standards
While complying with standards mandated by local governments, Ingersoll Rand imposes stricter additional standards on unit engineering parameters and performance.
- Electrical Components: Compliant with NFPA 70/79, IEC 60204, GB 5226-1 standards
- Performance Testing and Reference Standards: ISO 1217 Annex C; 1996
- Noise Testing Method: ISO 2151:2004
- Noise Measurement Standard: ISO 9614-2:1996, Noise Level at Workstation +3 dB(A)
- Pressure Vessels (Varies by Region):
ASME Pressure Vessel Code; Section VIII, Division 1, “Unfired Pressure Vessel”
87/404/EC Simple Pressure Vessel Directive or 97/23/EC Non-Simple Pressure Vessel Directive GB 150 (1998) Steel Pressure Vessel Standard
• Quality Assurance
The Seller warrants that the ordered goods are manufactured from high-quality materials and standard processes, are brand new and unused, and fully comply with the quality, specifications, and performance stipulated in this Contract. The Seller further warrants that the goods ordered under this Contract, when properly installed, used, and maintained, shall be free from defects for a period of 18 months from the date of shipment from the port of export, or 12 months from the date of commissioning, whichever occurs first.
• Ingersoll Rand China
Since its founding in China in 1922, Ingersoll Rand has been committed to building long-term partnerships with suppliers, manufacturers and customers in China. At present, Ingersoll Rand has 1 investment company, a number of trading companies, 8 manufacturing bases, 1 Asia-Pacific technology research and development center in China, and business organizations in more than 30 cities across the country.
Ingersoll Rand's largest factory in the world is located in Wujiang Industrial Park, Suzhou, covering an area of 230,000 square meters, with a construction area of 91,000 square meters and more than 700 employees. The production, quality inspection and quality control of the products will be completed in Ingersoll Rand Wujiang Industrial Park; Its supplier site evaluation, production part approval process, incoming material quality control, warehouse inventory management, manufacturing process, testing and inspection, finished product quality control, outgoing quality control and warranty are all strictly based on Ingersoll Rand's global quality regulations.
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