COMPAIR EK290NK Compressor Air End ElementA11976574

This product (part number: A11976574) is a core component designed specifically for CompAir EK290NK series compressors. It is a new, genuine airend that drives the compressor to generate stable, high-pressure airflow. Its key advantages include a high-efficiency design that optimizes airflow and reduces energy consumption, and an integrated advanced cooling system that prevents overheating, ensuring continuous and reliable operation in industrial environments. Its compact design is compatible with a wide range of compressor models, weighing only 710 kg. It is suitable for compressor maintenance and complete replacement in manufacturing, energy, and mining applications, significantly extending equipment life and reducing downtime.

Efficient and energy-saving design
The third-generation screw rotor profile is adopted, with a volumetric efficiency increase of 12% and energy consumption reduction of 8%, meeting the requirements of the ISO 50001 energy management system.
Extremely long life and reliability
The core rotor is nitrided and has a hardness of HRC 60+, which supports continuous operation for 20,000 hours without failure.
Intelligent temperature control guarantee
The built-in dual-channel cooling system, through the A11976574 exclusive air duct design, the operating temperature is stable at 70°C±5°C, avoiding the risk of high temperature locking.
Low maintenance cost
The modular structure supports quick disassembly and replacement, reducing maintenance time by 40%, and is compatible with the A11976874 repair kit (including seals/bearings).

Heavy industrial manufacturing: High-pressure air supply systems in steel plants (such as the jiugang group production line) and chemical plants.
Energy and mining: Compressed air sources for mining drills and generator sets, resistant to dusty environments.
Food and medicine: The oil-free design version meets the ISO 8573-1 class 0 pollution-free standard.
Mechanical maintenance services: The maintenance workshop replaces the original air end, reducing costs by 30%.

Material and Process:
The housing is made of GG25 gray cast iron, and the internal male and female rotors are 20CrMo alloy steel. They are finely machined by a five-axis linkage grinder, and the accuracy reaches ISO 1940 G2.5 balance level.
Compatibility Design:
The shaft seal interface complies with DIN 24960 standard and can directly replace the air end components of the same specification COMPAIR EK290NK compressor without modifying the pipeline.

Large-scale enterprise procurement certification: China Jiugang Group's 2025 zero-solid procurement project designated model, technical standards through the "single lowest price method" bidding review.
Global supply chain support: Edmac EU, Gansu Wenrui Electronics and other platforms provide original factory-level quality inspection reports (PDF download available).
User proof: After the Vietnamese manufacturer replaced A11976574, the equipment restart time was shortened to within 72 hours, and the production capacity recovery efficiency was increased by 90%.

Technical cooperation: Free compressor thermal calculation book and installation dimension drawing (DWG format).
Warranty policy: 12-month limited warranty, lifetime technical support, fault response time <4 hours.
Financial support: Accept various payment methods.

Q1: Is A11976574 compatible with compressors other than COMPAIR?
It can be adapted to models with the same pressure/displacement specifications such as Ingersoll Rand and Gardner Denver. The original model number must be provided to confirm the interface parameters.
Q2: How is the delivery cycle of air-end components guaranteed?
China and European warehouses are stocked regularly, and the product will be shipped 3 days after the order is confirmed (domestic land transportation) and will arrive at Southeast Asian ports in 7 days.
Q3: How to verify the authenticity of the product?
The QR code (including OEM code 12610903) is laser engraved on the shell, and official website verification is supported.
Q4: Why is there a significant difference in price range?
The difference is due to the supply chain level;
The trader premium includes the signing of the technical agreement and customs compliance services.

With 15 years of experience in compressor core components, we provide original spare parts solutions to customers in 35 countries around the world. The information on this product page was updated on July 14, 2025. The technical parameters are subject to the actual order agreement.

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