Relationship between mesh and millimeter units introduction:
Mesh is material’s particle size or fineness, the larger mesh number, the thinner particle size; the smaller mesh number, the larger particle size.
Unit conversions (United States standards) of Millimeter (mm), Mesh, and Micron (um):

Millimeter（mm）	Mesh	Micron(μm)	Millimeter（mm）	Mesh	Micron(μm)
11.10	2	11100	0.140	100	140
7.090	3	7090	0.125	115	125
5.160	4	5160	0.117	120	117
4.040	5	4040	0.113	125	113
3.350	6	3350	0.109	130	109
2.870	7	2870	0.107	140	107
2.460	8	2460	0.104	150	104
1.900	10	1900	0.096	160	96
1.520	12	1520	0.089	170	89
1.300	14	1300	0.086	175	86
1.030	16	1030	0.084	180	84
0.980	18	980	0.074	200	74
0.864	20	864	0.065	230	65
0.701	24	701	0.063	240	63
0.577	28	577	0.061	250	61
0.535	30	535	0.053	270	53
0.500	32	500	0.046	300	46
0.447	35	447	0.043	325	43
0.381	40	381	0.035	400	35
0.355	42	355	0.028	500	28
0.323	45	323	0.023	600	23
0.295	48	295	0.018	800	18
0.279	50	279	0.013	1000	13
0.221	60	221	0.010	1340	10
0.203	65	203	0.007	2000	6.5
0.185	70	185	0.003	5000	2.6
0.173	80	173	0.002	8000	1.6
0.150	90	150	0.001	10000	1.3

Clirik grinding equipment, stone grinding machine can be used in processing fine and super fine powder adjust between 300meshs and 3000meshs, output is 0.5~12 tons per hour. Clirik HGM series micro powder grinder equipment is an ideal grinding equipment for ultrafine stone powder processing.