Custom Cell Size 0.8-3mm Honeycomb Seal Ring for Aero-engine

Product Specification

Custom Cell Size 0.8-3mm Honeycomb Seal Ring for Aero-engine

Pasia Custom Cell Size 0.8–3mm Honeycomb Seal Ring is a precision-engineered gas-path sealing component specifically designed for aero-engine applications. Installed in the annular groove around the shaft on the inner wall of the engine casing, this seal ring is used to seal the radial gap between rotating blades and the engine wall, reducing air leakage and thereby improving engine efficiency while lowering fuel consumption.

The defining feature of this product is its customizable honeycomb cell geometry — with cell diameters available from 0.8 mm to 3.0 mm and depths up to 13 mm — allowing precise matching to rotor blade dimensions for optimal sealing performance.

2. Customizable Cell Sizes — Precision Matched to Your Blades

The hexagonal cell size on the seal ring depends directly on the rotor blade dimensions. Our product offers a full range of custom cell sizes to suit diverse engine platforms and blade geometries:

Cell Diameter Typical Application Key Benefit
0.8 mm Small-blade / high-speed turbine stages Finest sealing resolution, maximum leakage reduction
1.0–1.6 mm Mid-range compressor & turbine stages Balanced performance and manufacturability
2.0–3.0 mm Large-blade / low-pressure stages Optimal abradability and clearance accommodation

Cell sizes can be customized incrementally within the 0.8–3.0 mm range to precisely match your specific blade tip dimensions. Available standard options include 0.8 mm, 1.0 mm, 1.2 mm, 1.6 mm, 2.0 mm, 2.5 mm, and 3.0 mm.

Foil thickness options range from 0.05 mm to 0.13 mm, providing flexibility for various strength and wear requirements.

Our honeycomb seal product line supports the following flexible specifications:

Applications:

· Aerospace & Aviation Sealing: Ideal for aircraft jet engine compressors and turbine shrouds.

· Power Generation Gas Turbines: Used in combined-cycle power plants to minimize parasitic steam leakage, which reduces average heat

consumption by approximately 5 grams per kilowatt-hour of standard coal.

· Industrial Steam Turbines: Enhances rotor stability and dehumidification at blade tips, protecting components from moisture erosion.

· Wind Tunnel & Compressor Flow Straighteners: Ensures laminar airflow and reduces aerodynamic losses in high-speed test facilities.

· EMI/RFI Shielding: The metallic honeycomb structure also acts as an electromagnetic interference (EMI) shielding vent in sensitive electronic enclosures.

How Efficient is a Honeycomb Seal?

· Leakage Reduction: Compared to labyrinth seals, honeycomb sealing reduces steam/air volumetric leakage by an average of 30%-50% (while maintaining thinner clearances).

· Thermal Efficiency: For 600MW supercritical steam turbines, replacing traditional seals with honeycomb variants reduces heat consumption by approx. 5 grams of standard coal per kWh.

· Service Life: Due to excellent abrasion resistance and dynamic adaptability, the operational lifespan of a honeycomb seal is typically more than twice that of ordinary comb seals, significantly reducing maintenance downtime.

Why Choose This Honeycomb Seal – Real-World Expertise (EEAT Focus)

We are not a simple component distributor, but an original manufacturer with deep R&D and production capabilities in honeycomb products:

· In-house Expertise: With over 11 years of experience in design, manufacturing, and precision machining of metallic honeycomb structures, we independently handle everything from micro-cell honeycomb aero-engine components to large-scale steam turbine sealing rings.

· Proprietary Technologies: We are one of the few manufacturers in the industry that simultaneously operates automatic laser welding production lines and vacuum brazing technology. Vacuum brazing ensures an exceptionally strong bond between the honeycomb core and the backing plate – it will not delaminate even under continuous high‑temperature vibration.

· Quality Assurance: We strictly implement international quality management standards and hold GB/T 19001‑2016 / ISO 9001:2015 certification as well as GJB 9001C‑2017 (National Standard of China) certification, ensuring “‑grade quality” for our products.

· Global Case Studies – First‑Hand Evidence: Our honeycomb seals have been successfully applied in a gas turbine power plant retrofit project in Southeast Asia, as well as in the aero‑engine MRO (Maintenance, Repair, and Overhaul) supply chain in China. In one instance, we helped a gas turbine maintenance provider reduce rotor tip clearance leakage by 37%, significantly extending the thermal cycle life of the blades.

Advantages