AFS Foundry Sand Testing Equipment Operating Instructions Manual

RIDSDALE SHATTER INDEX TESTER (AFS) (cont’d)IVTEST PROCEDURE (cont’d)(f)For convenience, weigh the sand in the receiver and calculate the weight of sandremaining on the sieve, including the cone of sand on the anvil cap, by subtractingthis weight from the total weight of the specimen.Shatter Index = Wt. of sand remaining on 13.2 mm mesh sieve x 100Total wt. of (sand) specimenVINTERPRETATION OF RESULTSThe Shatter Index value, in conjunction with the moisture content and the compressionstrength, gives a useful guide to the mouldability of a sand, that is, the kind of “lift” which canbe obtained when a sand mould is removed from a pattern.VIMAINTENANCEKeep the machine clean and oil the bearings on the plunger shaft with a little light oil.VIIRECOMMENDED SPARESPart NoDescription802 Lid – sieve assembly803 13.2 mm mesh sieve – sieve assembly.804 Receiver – sieve assembly.819 Anvil820 Anvil post.79