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    Blast Abrasives
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    Product Range

    Confidence in every cut

    GMA waterjet garnet is recognized as the industry standard among manufacturers and operators of waterjet cutting machinery.

    Product Range

    Confidence in every cut

    GMA waterjet garnet is recognized as the industry standard among manufacturers and operators of waterjet cutting machinery.

    The world’s most popular waterjet garnet

    GMA waterjet abrasives are engineered for peak performance, accuracy, and speed. Refined over 40 years alongside industry experts, our products are the first choice of operators who demand ultra-precise waterjet cutting.

    GMA’s world-class processing facilities guarantee every batch contains consistent-sized grains of the purest garnet, ensuring steady abrasive flow, reduced consumption, and less downtime for maintenance and parts replacement.

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    OUR GARNET

    The GMA advantage

    GMA GarnetTM is a strong, natural mineral that outperforms other garnets due to its unique properties and our advanced processing methods, refined over 40 years. Unique grain hardness, toughness, density, and angularity ensure perfect edge quality on any material with a thickness of up to 30 inches.
    Lean more about our garnet

    Engineered for precision cutting

    GMA’s range of waterjet cutting abrasives strikes the perfect balance of cutting efficiency and edge quality for results that improve production uptime.

    Hardness

    The harder the grain the better it cuts. Our garnet is hard, tough, and dense — the perfect combination for fast and effective cutting, with low abrasive consumption and excellent edge quality.

    Consistent grain sizing

    Inconsistent grain sizing causes blockages, creating unsteady abrasive pressure and flow, fluctuating cutting speed, and poor edge quality.

    Our processing methods ensure every bag contains the most precisely-sized grains of garnet. It accelerates production and reduces the frequency of expensive parts replacements.

    Cleanliness & purity

    Dusty, dirty, or impure garnet impacts cutting performance, causes frequently blocked focussing tubes, or even damaging the parts being cut. However, GMA’s advanced processing methods produce the cleanest garnet for the cleanest results.

    Why is GMA Garnet™ the preferred waterjet abrasive?

    Achieve the highest production rates and a perfect result on the first cut.

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    Consistent quality

    Each bag of GMA Garnet™ contains the highest percentage of the purest, accurately-sized almandine garnet — up to 98%.

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    Reduced consumption

    Our garnet balances high cutting speed and perfect edge quality while extending the operating life of your waterjet equipment.

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    Sustainable resource

    Our garnet recovery programs offer a cost-effective and environmentally responsible solution for the disposal of used garnet.

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    Secure supply

    GMA is the only global garnet supplier to control its supply chain from source and processing to international distribution.

    Waterjet abrasive for all applications

    GMA offers a range of crushed and alluvial almandine garnet grades for any waterjet cutting operation.

    GMA ExcelCut

    The sharpest crushed hard rock garnet for cutting thick hard materials or those requiring minimal refinishing.

    Mesh

    50, 80, and 120 mesh

    Focusing tube

    0.020" - 0.060"

    Orifice

    0.007" - 0.018"

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    GMA ProCut™

    An engineered blend of crushed hard rock and alluvial garnet ideal for high-volume waterjet cutting operations.

    Mesh

    60 mesh

    Focusing tube

    0.040" - 0.050"

    Orifice

    0.012" - 0.014"

    Learn More
    GMA ClassicCut™

    The most versatile all-purpose waterjet abrasive, recognized as the industry standard by manufacturers globally.

    Mesh

    80 and 120 mesh

    Focusing tube

    0.020" - 0.040"

    Orifice

    0.007" - 0.014"

    Learn More
    Waterjet parts

    GMA carries a full range of reliable, high quality, low wear parts for a variety of leading waterjet cutting machines. Optimize your waterjet cutting performance.

    ROCTEC™ nozzles
    Diamond, tetracore, ruby & sapphire orifices
    Connecting parts

    View range
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    Speak to your regional GMA expert now 

    We know the waterjet cutting business, and are here to help you get the most out of your operation. Ask us for advice, a product sample, or demo.

    Contact Us

    Select the right abrasive for your project

    What grade of garnet is right for your project? With GMA's world class waterjet garnet abrasives, no matter what you're cutting you can be confident that you can maximize production and minimize downtime.

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    *This chart is a general guide only. Product performance variation may occur due to difference in material type, thickness, equipment brands and water pressure.

    Contact GMA

    Ready to experience the GMA difference?

    Speak to your regional expert about our waterjet products, or request a sample or demo.

    Contact Us
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