GMA Garnet™

GMA Waterjet Garnet

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GMA Garnet™ abrasive is extensively used in all renowned waterjet cutting machines around the world.

The highest purity garnet and highly accurate sizing of grains are produced using the world’s best processing methods. This ensures that there are no dust or ineffective fine grains that can restrict garnet free flow – oversized grains may create a blockage in the focusing tube.

A steady flow of garnet abrasives to the focusing tube that is free from blockages allows uninterrupted production without downtime resulting in optimum efficiency and lowest production costs.

In addition, millions of years of weathering the hard and tough sub-angular garnet grains provide the perfect balance between cutting speed and edge quality. High quality alluvial garnet does not contain any fracture lines that weaken the grain inherent with crushed garnet.

Equipment wear and tear in particular, the cutting head and focusing tube are also reduced. This translates to direct cost-savings and longer service life.

GMA owns and operates the world's largest mining and processing facility of industrial garnet. GMA Garnet™ is processed to the highest quality, with strict in-house and external quality control at every stage of processing, grading, packaging and transportation. This ensures a constant high quality standard from the mining or processing right through to the end user.

GMA Garnet™ is certified under ISO 9001:2000 Quality Management Systems, demonstrating our commitment to product quality and customer service. It is also certified under ISO 14001:2004 Environmental Management Systems demonstrating our commitment to the environment with a socially responsible production process.

GMA Garnet™ consists of totally natural Almandine garnet known for its superior hardness and abrasive ability. It is free of any heavy metals or toxic compounds and meets all Occupational Health and Safety regulations and provides a perfect balance of grain shape (sub angular) size and density.



GMA Garnet™ 50 or 60 Mesh-For high speed cutting which may deliver up to a 30% increase in cutting speed at at reduced precision edge.

GMA Garnet™ 80 Mesh-The industry standard & most popular waterjet abrasive grain used worldwide is suitable for most cutting applications delivering optimum balance in cutting speed & precision edge.

GMA Garnet™ 120 Mesh-For high precision & minimum tolerance edge cutting requirements.


GMA Garnet Safety Data Sheet (SDS)


Video:   Waterjet cutting using GMA Garnet™ 80 mesh on aluminium