Abrasive grain size

 Abrasive is one of the four basic elements of abrasive belt, and it is the main body of abrasive belt in grinding. Abrasives for abrasive belts are identical in material to bonded abrasives, and have the same rules and principles as bonded abrasives when selecting abrasives. However, due to the difference in the mechanism of the abrasive belt between the abrasive belt and the fixed abrasive, and the difference in the mechanism between the grinding of the grinding wheel and the grinding of the abrasive belt, there are different requirements for some physical properties of the abrasive, which are summarized as follows. difference: 

abrasive belt grint_abrasive cloth

(1) Abrasive grain size series is different

The sandpaper abrasive belt abrasive cloth is made of P-series standard, that is, the particle size number is preceded by a “P” letter. Consolidated abrasives use F-series standards, which are different.

(2) The setting of the granularity number is different.

Sandpaper abrasive belt abrasive cloth roll P-series abrasives are provided with 30 grain numbers: P8, P10, P12, P14, P16, P20, P24, P30, P36, P40, P50, P60, P70, P80, P100, P120, P150 , P180, P220 and micro powder set P240, P280, P320, P400, P600, P800, P1000, P1200, P1500, P2000, P2500, etc.

The fixed abrasive F-series standard has 35 granular numbers: 4#, 5#, 6#, 7#, 8#, 10#, 12#, 14#, 16#, 20#, 22#, 24 #,30#,36#,40#,46#,54#,60#, 70#, 80#, 90#, 100#, 120#, 150#, 180#, 220#. Another set of fine powder has 230 to 1200 and so on.

abrasive belt grit_abrasive cloth

(3) The particle size composition is different

First, sandpaper/ abrasive belt/ abrasive cloth roll /abrasive P-series abrasives have high basic particle content

Second, the distribution of granularity groups is wide.