Silicon Nitride Grinding Media Balls

 Innovacera Silicon Nitride Grinding Media Balls were made by 3 forming ways: titration, roll, and CIP (cold isostatic pressing ) forming and they were gas pressing sinetering in 1800～2100℃. The purity of silicon nitride is 99% and generally, if the diameter size is more than 3mm, we will choose the CIP forming way.

Silicon nitride grinding balls possess excellent features, including chemical inertness, low friction and heat generation, electrical insulation, non-magnetism, high strength, and corrosion resistance.

Compared with other grinding media, the silicon nitride (Si₃N₄) milling media balls improve energy efficiency, reduce mechanical wear and ultra-fine grinding and dispersion. It is an ideal grinding media when high wear resistance, minimal contamination and less abrasion is required, such as semiconductor slurries, pharmaceutical dispersions, and battery material milling. Our silicon nitride media balls main size is 0.2 mm – 20 mm.

Si3N4 Milling Ball General Size:

Model	Size (mm)
INSNGM0204	0.2-0.4
INSNGM0406	0.4-0.6
INSNGM0608	0.6-0.8
INSNGM0810	0.8-1.0
INSNGM1012	1.0-1.2
INSNGM1220	1.2-2.0
INSNGM2030	2.0-3.0
INSNGM3050	3.0-5.0
INSNGM50100	5.0-10
INSNGM100150	10.0-15.0
INSNGM150200	15.0-20.0

Silicon Nitride Grinding Balls Material Properties:

Item	Units	Value
SI3N4	%	90±0.5%
Y2O3	%	4±1%
AL2O3	%	4±1%
FE2O3	%	＜0.03%
SIO2	%	＜0.02%
CaO	%	＜0.01%
Hardness (HV10)	GPa	>1300
Density g/cm3	GPa	>3.2
Compressive strength	MPA	>500

Application:
Ceramics Manufacturing
New Energy
Electronic materials milling
Grinding inks, rare earths, and advanced polymers
High-purity chemical systems grinding