Ore sample

For a maximum fineness, the jaw crusher Model I has been set to “changed geometry”. With this setting, the gap between the jaws will not open as wide as in standard geometry. This way, particles will be ground way finer, also output will be significantly reduced.

It took 16:30 min until the complete sample amount of 970 g has been ground completely. Afterwards, an aliquot of sample has been picked and sieve with the desired test sieve of 1,12 mm mesh on Vibratory Sieve Shaker ANALYSETTE 3.

It has shown that almost 96 % of sample is able to pass the mesh. This use to be a very fine result for a grinding with Jaw Crusher PULVERISETTE 1 Model I. The grinding chamber is minimal polluted; a grinding of higher amounts is still possible.

If the achieved result is not fine enough, we recommend using a Disk Mill PULVERISETTE 13 for grinding. As long as pure metal content is not too big, sample should be grindable with Disk Mill PULVERISETTE 13 as well.

Probably Jaw Crusher PULVERISETTE 1 can be used if start size will be > 2 cm.

Also sample 2 uses to be ground equally to result 1. About 95,1 % of sample is able to pass the 1,12 mm mesh of the used test sieve.

Still higher amounts can be ground this way.

With standard geometry, usually particles with a length up to 8 mm can be found. Such brittle sample might be ground even finer.