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Two Stage Oil-Free Rotary Screw Compressors

Fixed and regulated speed

Two Stage Oil-Free
ASK’s next-generation oil-free rotary screw compressor range is engineered to deliver outstanding energy efficiency, guaranteed air purity, and one of the lowest total costs of ownership in the industry. Designed for high-performance industrial applications, the range offers improved airflow capacity, reduced energy consumption, and reliable continuous operation.
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Benefits DX90–160 (RS) series

ASK has expanded its advanced DX oil-free rotary screw compressor range with the new DX90–160 (RS) series, delivering exceptional energy efficiency, higher airflow performance, and reduced lifecycle costs for critical industrial applications. Designed for reliable continuous operation, the range provides Class Zero certified oil-free compressed air in accordance with ISO 8573-1:2010 standards, ensuring maximum air purity with virtually no contamination risk.

Advanced Compressor Design

The ASK DX series features a newly engineered two-stage airend designed to deliver up to 9% higher airflow capacity with exceptional efficiency and long-term reliability. Durable protective coatings on the airend housing and rotors, combined with stainless steel second-stage rotors, enhance compressor lifespan and performance even in demanding industrial environments. A dedicated air intake system supplies cooler air to the airend, further improving efficiency and operational stability.
Variable speed models are equipped with ultra-premium IE5 hybrid reluctance motors (HRM) that provide outstanding energy efficiency across all load conditions. These IP55-rated motors offer reliable protection against dust and water ingress, low starting power consumption, and extended service life. Fixed speed models utilize high-efficiency IE4 continuous-duty motors with IP55 protection for dependable industrial performance.

Best-in-Class Efficiency

The ASK DX 90–160 Series delivers exceptional compressor performance with up to 14% higher energy efficiency and 9% improved airflow capacity, helping reduce operating costs while maximizing productivity. Engineered with advanced airflow analytics, optimized piping design, and water-jacketed airend cooling, the system ensures superior thermal management and reliable high-efficiency operation.
Equipped with ultra-premium IE5 motor technology for VSD models, integrated variable speed drive control, and intelligent variable speed fan blower management, the DX Series provides outstanding turndown capability, optimized energy usage, and efficient operation across varying load conditions.

Market-Leading Reliability

Every element of the ASK oil-free DX 90–160 Series is engineered for maximum reliability, durability, and long-term performance. Advanced features such as UltraCoat™ corrosion-resistant protection, smart no-loss drain technology, pneumatic blowdown systems, hydraulic inlet valves, and a free-floating cooling system work together to ensure dependable and efficient compressor operation in demanding industrial environments.

Flexible Design Options

ASK compressors are available in a wide range of configurations to meet diverse industrial application requirements, including air-cooled and water-cooled models, fixed and regulated speed options, and multiple pressure variants. Designed for demanding environments, the range also includes solutions for extreme ambient temperatures, high-dust filtration systems, and outdoor installation modifications to ensure reliable and efficient operation in harsh working conditions.

Reducing Lifecycle Costs

The ASK DX 90–160 Series is designed with long-life consumable components that help minimize maintenance requirements and reduce overall lifecycle costs. Serviceable components such as filters and heat exchangers are easily accessible, allowing faster and more efficient maintenance procedures with reduced downtime.
Additional innovative design features, including hinged removable doors and integrated package pre-filtration systems, ensure safe servicing access while protecting internal components from dust and dirt contamination, improving reliability and extending equipment life.

Higher Rated Cooling Capacity

ASK compressor systems are engineered to operate efficiently in ambient temperatures up to 46°C, providing additional cooling capacity for reliable performance in high-temperature environments. This enhanced thermal design ensures stable operation, improved durability, and greater overall reliability and efficiency of the complete compressor package.

Advanced Compressor Control - The New Delcos i10 Controller

The advanced ASK Delcos i 10 controller provides real-time operational information through an intuitive and user-friendly interface designed for easy system management and optimized compressor performance. With built-in graphical trending and advanced monitoring capabilities, users can gain detailed insights into compressor activity for improved efficiency and operational control.

Performance Data
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