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Our CROWN Brand emery supplier and manufacturer with more than 40 years of experience. Grinding and Polishing is the basic process to achieve surface finishing and level of smoothness. Most manufacturers fail to achieve the smooth and uniform surface. This leads to losing ground to competitors. Considering the reasons of poor surface finishing, it is necessary to find appropriate solutions.
We manufacture Synthetic Emery Grains by using high quality bauxite processed by scientifically tested methods, which ensures best quality product suitable for various industries. Our expert techniques of manufacturing is responsible to manufacture Emery Grains with uniform hardness, and uniform grit size, which enable our clients to achieve less cutting time and best surface finish.
We have strong experience in providing high quality Emery Grains & Powder, with a track record of having thousands of satisfied customers all over the world.
We are also manufacturing premium metal polishing compounds.
Sizes: 4, 6, 8, 10, 12, 14, 16, 18, 20, 24, 30, 36, 40, 46, 50, 60, 70, 80, 90, 100, 120, 150, 180, 220, 300, 400, 600, 800, 1000, 1200 & 1500.
Group Grits : 1 mm – 3 mm, +8 – 16, +16 – 30, +30 – 60, etc.
Other then above sizes, we are also manufacturing as per customer’s requirement. Please contact us.
Al2O3 | 55% to 60% |
Fe2O3 | 20% to 35% |
TiO2 | 2% to 3% |
SiO2 | 4% to 5% |
CaO | 1% to 2% |
Others | 3% to 4% |
Hardness | Above 8 on moh’s scale and closer to 9 |
Specific Gravity | 3.966 gms/cc (minimum 3.6) |
Bulk Density | Typically 1.5 to 1.9 gms/cc |
Grit # 60 | 1.63 – 1.73 gms/cc |
Shelf Life | Non – degradable for a long period, if stored under dry condition in proper packing |
“Crown” emery grains along with magnesium oxide and magnesium chloride are applied to the rice Sheller cone , in rice mills for polishing rice with minimum broken grains and faster output. The special rice polishing grade emery grains form a superior oxychloride bond and as a result the stone lasts longer.
Either with oxychloride formulation or with plain Portland cement, “Crown” emery grains can be used as hard aggregates for anti skid and non wear flooring. This type of flooring is very useful in areas like warehouses with heavy forklift traffic, workshops where oil is spilled and heavy objects fall now and then, hospital ramps, reception areas with heavy foot traffic, ship decks, and treads of staircases and so on. Superior abrasive action of the “Crown” emery grains imparts better grip and resist the wear caused by heavy traffic. At toll booths on highways, such surface will provide good braking for the vehicles and add as a safety feature.
Typical Physical Properties
| Hardness of Aggregates: | 8 to 9 on Moh's Scale of 10 |
| Form: | Bluish Black Dry Grains |
| Mineral Phase: | Corundum as major phase along with Hematite |
| Particle Shape: | Polycrystalline to amorphous |
| Specific Gravity: | 3.85 |
Flour Mill Stones: similar to the above application, “Crown” emery grains are mixed with the magnesium oxide and magnesium chloride slurry and allowed to set in a mould to form a solid flour mill stone. Due to superior hardness, “Crown” emery grains help in better and longer lasting emery stones.
Metal parts sheared and cut , left with unfinished edges can be deburred with “Crown” emery in minutes , by putting the parts in barrels and tumbling them along with coarse sized “Crown” emery grains. Similarly metal parts with rusty surface and salt deposits can be easily cleaned.
Specially graded “Crown” emery grains are best suited for manufacturing of coated abrasives like emery cloth & emery paper. The typical self sharpening action of the “Crown” emery grains with needle shaped grains and uniform grading make “Crown” emery grains the first choice for use in this application.
The finer grades ( 220 to 400 ) are used for lapping of optical lenses; either in lieu of other abrasives or before and after these abrasives.
Optical Lens Lapping: The finer grades ( 220 to 400 ) are used for lapping of optical lenses; either in lieu of other abrasives or before and after these abrasives.
“Crown' emery grains and powder , applied on a cloth buff is widely and popularly used for polishing of metal articles like automobile accessories (car bumpers , door handles ) , dinnerware and table ware ( bowls, plates, knives, spoons, forks etc.) stainless steel balls for ball bearings and innumerable other stainless steel articles. The smaller individual crystal size, higher corundum content, and perfect sizing makes “Crown” emery the first and popular choice for Stainless steel polishing. This product can also be used in form of a emery compound or paste.
“Crown” Brand Emery 50 kg. nett in jute bag with HDPE liner.
For Export : Standard Export Sea Worthy Packing 50 Kg. in Plastic bags further placed into new HDPE bag & outside new jute bag.
