The KAESER E-F-221 filter element is a high-performance activated filtration component designed for large-flow compressed air systems. Engineered for demanding industrial environments such as laser cutting production lines, electronics manufacturing plants, and sandblasting systems, it ensures stable air purity, low pressure loss, and long service life.

Manufactured in Wuxi, Jiangsu, China, this model follows strict quality control standards and complies with ISO8573-1, CE, and RoHS certifications, ensuring reliable performance and international compliance for compressed air purification systems.

Key Advantages

The E-F-221 model delivers outstanding filtration efficiency with a precision level of 0.01 μm and an extremely low residual oil content of just 0.001 ppm, making it suitable for ultra-clean air requirements in sensitive industrial processes.

One of its most significant advantages is its ultra-low pressure loss performance (≤0.011 bar), which contributes to 5–7% energy savings by reducing compressor workload and improving system efficiency. This makes it a cost-effective solution for large-scale air supply networks.

With a long service life of up to 8,000 hours, it reduces maintenance frequency and improves operational continuity. The filter is also designed for high-flow environments with a processing capacity of 22.0 Nm³/min, ensuring stable air delivery even under heavy industrial demand.

Additionally, custom OEM drawing service is available, allowing structural adaptation for different compressed air systems and installation conditions, improving flexibility for engineering integration.

Core Features

The filtration structure is built using high-performance micro fiberglass media, which provides deep-layer particle interception and high adsorption efficiency for fine oil mist and contaminants. This ensures stable air quality even in continuous operation environments.

The housing interface is engineered with precise dimensional control of 83±1 mm diameter and 822±2 mm length, ensuring consistent compatibility and secure installation across KAESER-compatible systems.

End caps are made from engineering-grade plastic, offering excellent mechanical strength and resistance to deformation under pressure. The sealing system uses Buna-N material, ensuring airtight performance and chemical resistance in variable industrial environments.

Operating within a temperature range of 1.5°C to 80°C and a pressure range of 0.1 to 2.0 MPa, the unit is suitable for a wide variety of compressed air applications.

From a manufacturing perspective, strict tolerance control and inspection processes ensure every unit meets the standards required for a high-grade compressed air precision filter used in continuous production systems.

Manufacturing Quality & Supply Capacity

Produced in a specialized industrial filter element factory, each unit undergoes multi-stage testing including pressure resistance verification, airflow stability evaluation, and filtration efficiency validation.

The production system supports a supply capacity of over 1000+ units, ensuring stable availability for bulk procurement and long-term industrial contracts. Standard models are stocked for fast dispatch within 24 hours, ensuring minimal downtime for replacement requirements.

Packaging options include plastic bags, cartons, pallets, and customized export packaging to meet different logistics and distribution requirements.

Flexible MOQ starting from 1 piece and 100% T/T payment terms (RMB/USD) make procurement efficient for both small-scale maintenance needs and large industrial orders.

Diverse Applications

This filter element is widely used in industries requiring high-purity compressed air and stable system performance.

In laser cutting systems, it ensures clean airflow that supports cutting accuracy and prevents contamination of optical components. In electronics manufacturing, it helps maintain contamination-free environments essential for sensitive circuit production.

In sandblasting operations, it stabilizes airflow quality and reduces particulate interference, improving surface treatment consistency. It is also widely applied in automated production lines, pneumatic control systems, and industrial assembly equipment.

As a direct-fit alternative, it functions effectively as a kaeser replacement filter elements solution, allowing seamless integration into existing KAESER filtration systems without structural modification.

It is also suitable as a reliable replacement filter element for high-capacity compressed air networks requiring stable filtration performance.

User Value & Benefits

The primary value of this product lies in its ability to combine high flow capacity with ultra-precise filtration performance. By maintaining extremely low pressure drop, it reduces energy consumption and helps optimize long-term operational costs.

Extended service life reduces replacement frequency, lowering maintenance workload and improving system uptime. Stable filtration performance ensures consistent air quality, protecting downstream equipment from oil contamination and particulate damage.

For system designers and procurement teams, it provides a dependable option when selecting a compressed air filter element that balances efficiency, compatibility, and durability in industrial environments.

As part of advanced air treatment systems, it also supports applications requiring precision filter element performance standards, ensuring stable operation in high-demand production environments.

Overall, the KAESER E-F-221 offers a robust, energy-efficient, and highly reliable filtration solution, making it an essential component in modern compressed air purification systems supplied by a professional industrial filter element factory.