Aviation waterjet abrasives

GMA Garnet™ is the trusted abrasive when there's no margin for error. Reliably and accurately cut exotic metals and carbon fiber composites for aerostructures, wing skins, jet engine components and turbine blades.

Unmatched waterjet cutting performance

GMA Garnet™ is the recognized industry standard among manufacturers of waterjet cutting machinery, engineered to support peak performance, and longer operating life of today’s highly sensitive waterjet cutting tools.

Fast and consistent

Operate with high cutting speeds and maintain a consistent production rate, and minimal downtime. GMA's hard, clean, pure garnet keeps you on target to achieve deadlines.

Precision cutting

Reduce the risk of microscopic cracks or warping with GMA Garnet. Reliably make the highest quality cuts without fiber pull out, delamination, or heat affected zones.

Reliable supply

Run cutting operations uninterrupted with reliable access to the abrasives you need, thanks to our 100% owned mine-to-customer global supply chain.

Waterjet expertise

GMA’s technical experts are from the waterjet industry, and know the waterjet cutting business. We work with you to streamline your operation and overcome any production challenge.

Our garnet

What makes GMA Garnet unique?

GMA Garnet™ 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.

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Waterjet abrasives range

GMA offers an extensive range of waterjet garnet that optimizes your production by balancing cutting speed and edge quality.

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"

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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"

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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

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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.

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Aviation waterjet abrasives