GMA Waterjet Garnet

GMA Garnet™ abrasive is the industry’s leading solution for waterjet cutting and is extensively used in all major waterjet cutting machines worldwide. Known for its superior performance, GMA Garnet delivers unmatched cutting precision, longer equipment life, and cost-effective operation across a wide range of applications.

Why Choose GMA Garnet for Waterjet Cutting?

GMA garnet is processed using the world’s most advanced beneficiation and quality control systems. This results in the highest purity waterjet garnet, with extremely accurate grain sizing that ensures optimal flow through the abrasive feed system. There are no dust particles or ineffective fines, which can restrict abrasive movement, nor are there oversized grains that might clog the focusing tube.

A clean, steady flow of waterjet garnet to the cutting head minimizes downtime, increases production consistency, and reduces waste. This leads to maximum cutting efficiency and lower total operating costs—benefits that are essential in high-volume industrial environments.

Geological Advantage of GMA Garnet

Sourced from high-quality alluvial deposits, GMA Garnet features sub-angular grains that have been naturally weathered over millions of years. Unlike crushed garnet abrasives, which can contain fracture lines or sharp edges that weaken their structure, these garnets maintain consistent grain integrity. This means less breakdown during cutting, longer media life, and smoother edge finishes.

Additionally, the unique grain shape provides an ideal balance between cutting speed and precision, making it one of the most reliable choices for manufacturers who demand both efficiency and accuracy.

Reduced Equipment Wear

Another significant advantage of using GMA garnet is the reduced wear and tear on your waterjet system. The sub-angular grain structure is gentle on the equipment, particularly the focusing tube and cutting head. Operators experience fewer part replacements and enjoy longer equipment service life, further lowering overall maintenance and replacement costs.

Environmentally Safe and Operator-Friendly

GMA Garnet is composed of natural Almandine garnet, known for its superior hardness and abrasive qualities. It contains no heavy metals, toxic chemicals, or crystalline silica, making it a safe and compliant material under all Occupational Health and Safety regulations. It is also environmentally friendly and recyclable, aligning with the sustainability standards of modern manufacturing.

Mesh Sizes and Applications

UniWest offers GMA garnet in a variety of mesh sizes tailored to your cutting needs:

• 50 or 60 Mesh – Ideal for high-speed cutting, this grade can increase cutting speed by up to 30% while sacrificing some edge precision. Common in applications where throughput is prioritized over tight tolerance.

• 80 Mesh – The most widely used waterjet garnet grade in the world, offering the best balance of cutting speed and edge quality. Suited for metal, stone, composites, and more.

• ECO-90 (80 Mesh) – A blended and partially recycled garnet product, designed for users seeking cost savings without compromising performance. Excellent for general-purpose waterjet applications.

• 120 Mesh – Designed for fine, high-tolerance cutting where edge accuracy is critical. Recommended for intricate parts or thin materials.

Packaging Options

To meet a range of project and inventory needs, GMA garnet is available in the following packaging formats:

• 55 lb. paper bags – Convenient for small-scale or mobile operations

• 2200 lb. bulk bags – Ideal for standard commercial use

• 4400 lb. super sacks – Best for high-volume industrial applications