Heavy Duty Brush Seal

The Heavy Duty Brush Seal is engineered for the harshest environments, such as aircraft engines. It withstands high temperatures up to 850°C and rotor linear speeds up to 380 m/s. Bristles are ultra-fine (0.03–0.08 mm) with high density (120–180 bristles/mm²), made from cobalt-based alloys for maximum strength and flexibility. The seal adapts dynamically to rotor runout, showing exceptional technical performance.

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Product Introduction

Technical Parameters

Parameter	Value
Product Name	Heavy Duty Brush Seal
Applicable Medium	Engine gas, compressed air, oil mist
Operating Temperature	-80°C – 850°C
Pressure Difference	≤ 1.8 MPa
Maximum Rotor Linear Speed	≤ 380 m/s
Brush Wire Diameter	0.03 – 0.08 mm
Brush Density	120 – 180 bristles/mm²
Radial Dynamic Compensation	0.4 – 1.2 mm
Leakage Reduction	70% – 90% lower than traditional labyrinth seal
Design Life	≥ 5,000 flight hours

Key Advantages

1. Built for Extreme Conditions

2. Enhances Thrust and Fuel Efficiency

Air leakage in engines reduces efficiency and performance. Our brush seal minimizes leakage by 70%–90% compared to conventional labyrinth seals. Soft contact prevents rotor wear, reduces vibration, and lowers noise. Proven in high-temperature aging and fatigue tests, it also resists oxidation and creep, ensuring long-term reliability.

3. Customizable for Your Engine

We provide full customization according to your engine model, from simulation design to sample testing. Backed by over 100 patents and a decade of high-speed dynamic seal experience, the Heavy Duty Brush Seal is a trusted solution for demanding applications. Compatible with engine gas, compressed air, and oil mist.