Aerospace Industry
High-Performance Diamond Solutions for Aero Engine and Airframe Finishing
Advanced Diamond Solutions for the Aerospace Industry
Synthetic diamond powder is essential for achieving machining efficiency and surface integrity in the aerospace industry.
From grinding and honing nickel-based superalloys and titanium to drilling and finishing CFRP and CMC structures, as well as polishing optical glass and sapphire for avionics, synthetic diamond provides exceptional hardness, wear resistance and thermal stability to handle difficult materials with confidence.
Crownkyn’s precision-graded synthetic diamond powders offer stable quality, uniform particle size distribution and clean morphology. Available from mesh to micron in angular or blocky types, and optional Ni, Cu or Ti coatings, our powders help you increase removal rates, extend wheel life and reach low Ra finishes with tight dimensional control. With dependable supply and technical support, we are a trusted choice for aero-engine, airframe and MRO applications.
Application in Aerospace Industry

Cutting Process
- Titanium and high-temp alloys (engine blades, turbine discs): PCD tools offer over 10× tool life vs. carbide for precise, stable machining.
- Composites (fuselage, wing structures): PCD tools reduce delamination and burrs when drilling and milling CFRP.
- Hardened steels (landing gear, gears): PCBN tools achieve fine finishes on ultra-strong steels like 300M, with Ra as low as 0.4 μm.
- Heat-resistant alloys (combustion chambers): PCBN tools cut efficiently with less thermal damage.
Grinding Process
- Ceramic components (sensors, radar windows – Al₂O₃, SiC): Diamond grinding wheels enable high-precision machining with minimal edge chipping.
- Cemented carbide (fuel nozzle micro-holes): Diamond wheels achieve ±2 μm hole tolerance for consistent flow and combustion performance.
- Engine bearings and gears (carburised steels): CBN wheels support high-speed grinding with excellent roundness control.
- Turbine shafts: CBN wheels deliver ultra-fine surface finishes (Ra < 0.1 μm) for enhanced fatigue resistance.
Polishing Process
- Hydraulic valve spools (mirror finishing): Diamond lapping paste delivers nanometre-level accuracy and lowers leakage.
- Turbine blade film-cooling holes: Nano-diamond slurry removes the recast layer, boosting cooling efficiency by ~15%.
- Optical navigation lenses: MRF combined with diamond micro-powder improves surface figure and finish.
Suface Enhancement
- Turbine blade anti-fatigue treatment: nano-diamond abrasive blasting to extend the fatigue life of titanium blades and improve durability.
- Aerospace aluminium alloy strengthening: diamond micro-powder blasting to raise surface hardness and wear resistance.
- Aerospace bearing strengthening: CBN roller burnishing to increase residual compressive stress and enhance fatigue strength.
Your Trusted Partner for Aerospace Manufacturing
Engineered for Flight-Critical Precision
Advantages for Your Operations
- Cutting efficiency: Clean edges and stable feed rates in titanium, nickel superalloys and CFRP/Ti stacks.
- Composite integrity: Minimal delamination for cleaner holes and edges.
- Dimensional accuracy: Micrometre tolerances and low Ra on blades, gears, bearings and fuel nozzles.
- Thermal and surface control: Reduced heat-affected zones and recast layers for consistent geometry.
- Reliable supply: Consistent batches, full traceability and responsive technical support to keep projects on schedule.
Work with Crownkyn
With precise grading, controlled crystal strength and clean particle morphology, you tighten tolerances, extend tool and wheel life and achieve ultra-low Ra finishes on titanium and nickel superalloys, CFRP or CMC, technical ceramics, carbides and optical glass. Apply them across turbine blades and discs, combustor components, landing-gear parts, engine gears and bearings, fuel nozzles, airframe composites and avionics optics—supported by dependable supply and responsive application support.
Comprehensive range of Diamond Powder in Stone and Construction Processing

Micron Diamond Powder

Nano Diamond Powder

MIcron CBN Powder

Diamond Paste
Get Professional Solution
Unlock your production’s full potential with Crownkyn’s high-performance superabrasives.
Engineered with precision and backed by a commitment to stable quality, our synthetic diamond powders, CBN powders and diamond pastes are designed to boost your efficiency in the most demanding industrial applications.
Don’t compromise on performance — connect with us today and discover how Crownkyn can help you achieve consistent results, reduce downtime and extend tool life. Inquire Now and take the first step towards greater productivity and long-term success with Crownkyn.