SplitStone ® is the superior hydraulic rock splitter! Darda, Yamamoto and Super wedge use a similar hydraulic wedging method.

SplitStone is a stone splitter which delivers the splitting power in an ideal way. Critical part in technology of wedge is patented.

SplitStone product range covers everything from large stone quarries and city quarry to private stone or rock splitting.

Hydraulic SplitStone technique in block quarry produces straight and clean cut without color drawbacks or hair cracks. It’s easy and light to handling wedges. Thanks to amazing wedge cylinder relieves.

SplitStone has a large range of products in different drilling holes and wedging deeps. Also you can use SplitStone by many different excavator or crane.

Note! Splitters especially for small excavators! Hand held stone splitters are part of our product range too.

SplitStone is developed and manufactured by Kirnuvuori Oy.

About us

Kirnuvuori Oy is a machinery company found in 1986. The company manufactures hydraulic splitters and  stonecutting devices – Splitstone, and tools for quarry machinery. We also provide service for our products. Kirnuvuori Oy also manufactures and equips tools for tractors, and does many kinds of machinery – and welding work.

Kirnuvuori offers their customers:
– a fast and experienced answer
– comprehensive spare part services
– exact deliveries


History and our first splitters to the quarry since year 1990


SplitStone® – the stone splitter delivering the splitting power in an ideal way

SplitStone ® SP 100 Octagon

SP100 is hand held splitter with 230 V hydraulic unit.

Technical info

See more pics in the link!

SplitStone ® S 120,  S150 and  S 200

Auxiliary unit mounted to excavator boom or any other suitable hydraulic boom for secondary splitting and over size boulder breaking.
Read more.


SplitStone ® S 100

The unit is typically mounted to tractor or excavator boom or to crane, where the zoom type hydraulic boom is recommended for the longest reach.

Read more.



Kirnuvuori Oy – SplitStone

Kirkonkyläntie 100
23200 Vinkkilä
Tel: (02) 433 1190
Email: info@splitstone.fi

CEO Jussi Laine

Tel: 050-3576603
Email: jussi.laine@splitstone.fi

SplitStone Project Manager Seppo Leppälä

Tel: +358 40 4827035
Email: seppo.leppala@splitstone.fi

Site map – Our factory

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