An Australian aerospace equipment manufacturer, aiming to address the limitations of conventional filter elements—such as insufficient pressure resistance, complex maintenance procedures, and time-consuming operations—has undertaken technical upgrades for the hydraulic systems and engine lubrication systems of new-generation civil aircraft. To ensure long-term operational safety and system stability, the manufacturer has opted to equip these systems with high-precision metallic filtration elements that comply with military-grade standards and are suitable for extreme operating conditions. In response to this requirement, our facility has been commissioned to produce custom-designed sintered metal filter elements.

Customized Metal Sintered Filter Element Key Parameters (Per Customer Drawings)

Case Details

For custom production based on drawings provided by the client, it is essential to ensure compliance with critical parameters while delivering superior corrosion resistance and impact resistance performance, in accordance with the SAE AS4059 aviation filtration standard. The metal filter element must achieve high-efficiency retention of metal debris and micro-impurities in hydraulic oil and lubricating oil, ensuring that fluid cleanliness meets the NAS 1638 Class 5 standard, thereby preventing potential risks such as valve blockage and seal failure.

Upon receiving the client’s requirements and drawings, our organization assembled a dedicated technical team and provided a quotation. After mutual agreement on the quote, we executed a systematic process from drawing review, prototype manufacturing, mass production, to after-sales support, delivering one-stop custom services. The core product is a custom-designed 316L stainless steel sintered filter unit, tailored to the provided specifications.

Project Implementation Effect

Following the implementation of sintered stainless steel filters, the failure rate of the civil aircraft hydraulic system has been reduced by 85%, while the maintenance interval for engine oil has doubled. Additionally, the service life of the system has increased by 2.5 times, eliminating the need for frequent downtime and replacement. This has significantly lowered operational and maintenance costs while mitigating flight safety risks. These advancements fully meet the core aerospace requirements for high reliability, precision, and extended service life.

Project Summary

This finished product has been mass-produced and supplied to this model of passenger aircraft, and has been highly recognized by the customer. The successful implementation of this project is attributed to the customer's possession of complete drawings of the stainless steel sintered filter element, as well as our professional R&D team, advanced production equipment and complete delivery system.

Customer Evaluation

Custom Service Specifications

As a manufacturer of metallic filters, we specialize in the customized production of various non-standard filtration components, including pleated stainless steel filter elements, sintered metal filter cartridges, wedge wire filters, and special-shaped filtration modules. Our core service advantages include:

Drawing Adaptation: Guangtong supports customized production of metallic filters based on 2D/3D drawings, ensuring precise replication of dimensional and structural requirements with controlled tolerances within ±0.03mm, fully meeting client specifications.

End-to-End Service: Our streamlined process covers inquiry receipt → drawing review → quotation provision → prototype development → trial installation confirmation → mass production → product delivery → after-sales support, forming a closed-loop system that minimizes communication costs for both parties.

Quality Assurance: Strict adherence to the ISO9001 quality management system ensures comprehensive control throughout raw material procurement, production processing, and inspection, with full traceability of quality standards.

For customized non-standard metallic filter requirements, please provide relevant drawings. We will promptly deliver tailored solutions and prototype samples to facilitate the efficient implementation of your projects.