Precision Engineered Wear Solutions
Diamond Pellets
Tailor-Made
Wear Solutions
Precision-engineered composite particles — each containing a single diamond crystal encased in a metallic or cermet matrix. Unmatched consistency, flexibility, and performance across a wide range of hardfacing technologies.
What Are Diamond Pellets?
Each pellet is built around a single diamond grain — selected, graded, and tested to the highest standards — then coated in a metallic powder blend and sintered under controlled conditions. The result is a highly spherical, narrow-distribution pellet that delivers predictable, repeatable performance in your application.
Premium Diamond Quality
Multi-Stage Qualification
Every diamond used in FAST pellets undergoes a rigorous multi-stage qualification process before it ever enters production.
Morphology
Diamonds are selected for their cubo-octahedral shape using vibrating table sorting, maximising sphericity and consistent packing behaviour.
Granulometric Control
Sieving removes oversized and undersized grains, producing a tight size distribution that directly translates into uniform pellet geometry.
Crystallinity
Raman spectrometry is used to select diamonds with the highest crystalline purity and lowest graphitisation, ensuring thermal stability and consistent hardness.
Magnetic Susceptibility
Low catalyst content is verified to confirm diamonds are harder and thermally more stable than lower-grade alternatives.
Toughness Testing
Each diamond grade is mechanically evaluated by counting the number of crushing cycles required to break down 50% of the sample. This guarantees the best mechanical performance on the market.
Metallic Matrix Options
Choose Your Matrix
The most widely used formulation, offering the highest tribological performance for wear and cutting applications.
Compatible with a broader range of coating processes, with a more sustainable profile than cobalt-based blends.
A specially developed non-magnetic blend for directional drilling applications, where magnetic interference must be minimised.
Sintering Process
Precision
Heat
Treatment
To produce hard, dense pellets, FAST sinters all products by heat treatment under controlled atmosphere. The process includes de-waxing followed by consolidation and densification.
Sintering is conducted under hydrogen, which simultaneously protects the diamond crystals and deoxidises the metallic powders. FAST's in-house laboratory furnace enables continuous process development and optimisation.
Sizes and Granulometry
Standard
Stock Sizes
All standard sizes are available from stock. Tailor-made sizes are available up to 1000 µm and beyond.
All pellets exhibit a narrow size distribution and highly spherical morphology, verified by both optical and sieve analysis methods.
Application-Specific Pellets
Built for Your Application
Wear & Cutting
Premium synthetic or natural diamond for the most demanding formations.
Iron-Rich Rock Types
Cubic Boron Nitride pellets for applications where diamond reactivity is a concern.
Cost-Effective Protection
Lower-cost options for wear protection without sacrificing process compatibility.
MWD Radiation Shielding
B₄C pellets for gamma-gamma tool radiation shielding in Measurement While Drilling tools.
Directional Drilling
Non-magnetic pellets protecting directional drilling electronics from magnetic interference.
W₂C Drop-In Replacement
Developed as a direct replacement for W₂C pellets across existing coating processes.
AMAG Pellets
Non-Magnetic
Diamond Protection
The AMAG pellet range is engineered specifically for directional drilling, where even small magnetic signatures can compromise tool accuracy. FAST achieves this through a three-stage process:
- →Selecting inherently low-susceptibility diamonds
- →Pelletising with a purpose-developed non-magnetic tungsten carbide blend
- →Sintering under conditions that preserve those properties throughout
AMAG pellets remain randomly orientated in a magnetic field, whereas conventional pellets align themselves with it — a critical distinction for MWD and LWD tool integrity.
Compatible With All Hardfacing Technologies
Maximum Process Compatibility
FAST pellets are designed to work across all major coating and welding technologies currently in use globally.
Performance Benchmark
Disproportionate
Performance Gains
In comparative laser cladding wear testing, a diamond coating at just 7% diamond content reduced wear by a factor of 2× compared to spherical tungsten carbide coating, and by a factor of 5× compared to dendritic tungsten carbide.
Diamond pellets deliver disproportionate performance gains even at modest concentrations.
Proven Applications
Get in Touch
Download the Full
Product Brochure
For detailed technical data, granulometric charts, comparative wear test results, and the complete product range — download the FAST Pellets brochure. Or contact us to discuss your specific application or request a stock availability update.