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Rock Breaker

ModGregTech 5
TypeTile entity
Tooltip textPut Lava and Water adjacent
Blast resistance10

The Rock Breaker is a machine from GregTech 5. It exploits one of the most basic principle in Minecraft: when a Lava stream comes into contact with Water, the Lava is turned into Cobblestone. This allows the players to build Cobblestone farms. The Rock Breaker allows to automate this process and have more compact farms, although requiring energy to work.

The Rock Breaker can produce Cobblestone or smooth Stone, depending on whether the Lava is placed adjacent to one side or on the top. Additionally, it can produce one block of Obsidian per Redstone Dust.


Like every electric machine in GregTech 5, the Rock Breaker comes in 5 variants, one for each voltage from Low to Insane.

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