The OSMA SSK Range is 

The TFK Forestry mulcher is the smallest fixed hammer forestry mulcher available in Australia, if not the world. Designed to suit 2 - 6 tonne excavators, and it good for mulching up to 200mm.

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The OSMA TFL Range is designed for forestry mulching. 

The TFXL Forestry mulcher range is designed to suit 6-9 tonne excavators.