Rock Garnet Sand

 

Rock Garnet Sand

Coarse	60 Mesh
Medium	80 Mesh
Fine	120 Mesh
More fine grades	150 mesh, 180 mesh, 200 mesh, 220 mesh

A waterjet cutting machine also cuts hard materials, such as metal, stone, glass, or ceramics. For this, the water jet must be mixed with a cutting medium (abrasive) – for example, garnet sand. This procedure uses the abrasive jet as the separating device. The water jet serves to speed up the abrasive particles. Waterjet cutting with abrasive is comparable to microchipping.
Advantages of waterjet cutting
•  Efficient production technology as well, and especially with single part manufacturing
•  Almost no heat input in the component through the cutting jet
•  No structural changes in the material, such as increased hardness and micro fissures
•  High machining accuracy and surface quality at the cutting edge
•  No pollutants created during the cutting process

Basic information
Garnet sand is almandite garnet, one of the hardest minerals. We closely cooperate with the leading waterjet equipment manufacturers to develop the higher performance and more cost-effective products for the WJ customers. We remain the garnet leading supplier in China who keep product research, development, performance and cost-effectiveness.

HGARNET Advantages in Waterjet Cutting

Garnet comes in two basic forms, crushed and alluvial, the later being roughly similar to sand washed up on riversides. Our garnet for export is produced from our crystalline almandite garnet deposits. Thank to its sharp edges from crushing, this kind crushed garnet acts more like a sharp cutting tools so that it is superior to alluvial and have been shown to cut better and faster.

 

Average Chemical Composition (Typical)

Al2O3	18.06%
Fe2 O3	29.5%
Si O2	37.77%
Mg O	4.75%
CaO	9%
Ti O2	1.0%
P2 O5	0.05%
Mn O	0.5%
Zr O2	Traces
CHLORIDE CONTENT	Less than 25ppm
SOLUBLE SALTS	Less than 100 ppm
PH OF AQUEOUS MEDIUM	6.93
GYPSUM CONTENT	Nil
MOISTURE CONTENT	Less than 0.5%
CARBONATE CONTENT	Traces
LOSS ON IGNITION	Nil
METAL CONTENT	Traces

OTHER CHARACTERISTICS

Crystal System	Cubic
Habit	Trapezohedron
Fracture	Sub-Conchoidal
Durability	Very good
Free Flow	90% Minimum
Susceptibility to Acid	None
Moisture Absorption	Non Hygroscopic, Inert.
Magnetism	Very Slightly Magnetic
Conductivity	Less than 25 Microsiemens per Meter
Radio Activity	Not Detectable above background
Pathological Effects	None
Free Silica Content	None

Mineralogical Composition

Garnet (Almandite)	97-98%
Ilmenite	1-2%
Quartz	<0.5%
Others	0.5%

PHYSICAL CHARACTERISTICS

Specific Weight					4.1 g/cm3
Average Bulk					2.4 g/cm3
Hardness					7 (Mohs Scale)
Mesh	Size MM	16/30 MESH	20/40 MESH	20/60 MESH		30/60 MESH	40/60 MESH	80 MESH
14	1.40
16	1.18	0-5		0-1
18	1.00	10-20
20	0.85	20-35	0-5	0-5		0-1
30	0.60	20-35	30-60	10-25		0-10	0-5
40	0.43	0-12	35-60	25-50		10-45	40-65	0-5
50	0.30		0-18	25-45		40-70	30-50	0-50
60	0.25		0-5	0-15		5-20	10-20	15-50
70	0.21					0-10	0-7	10-55
80	0.18			0-5		0-5		5-40
90	0.16							0-15

 

 
Sharper Edges - Due to our garnet sand is crushed from almandine rock, it acts more like a sharp cutting tools and can cut faster and more efficiently than alluvial garnet.
 

Faster Cutting - Crushed and selected from hard rock so that GARNET  waterjet grade garnet produces harder and sharper edges than other waterjet abrasives. These characteristics enable our garnet more like a hard and sharp cutting tool to finish a faster cutting.
 
Better Edge quality - According to the cutting material and edge quality requirement, there are various special and proper waterjet grades recommended that enable a better edge quality.
 
Less Dusty - Garnet has high garnet purity and very low dust. That makes the whole cutting course more smoothly. 
 

Choosing the Proper Mesh or Grade
GARNET offers various grades to match any focusing tube and orifice for any given cutting applications. Choosing the proper mesh, or grade, for the operation is very imperative. Different mesh sizes of garnet are designed to pass through different sized nozzles and choosing the wrong grade could be stop a waterjet operation completely. If the garnet grade is too large or coarse, the granules can jam inside a tube and cause a blockage. Too fine an abrasive have a tendency to “clump” together inside the cutting head and again, have the potential to clog. Or it may inhibit the flow of garnet in the feed tube and not consistently enter the venture of water flow between the jewel and nozzle. If you are not sure which mesh or grade is proper, feel free to contact us and we would like to give you our professional suggestions.

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