Mechanical Bellows is a block added by ExPetrum.
Mechanical Bellows can be obtained by crafting from 3 Leather, 4 Iron Sheets, a Gear Assembly and 1 Nails.
Mechanical Bellows are used to increase the maximum temperature of temperature-containing blocks.
To do this a player must place the bellows so they face the block in question.
Then the bellows must receive rotary power.
The formula for the speed at which the bellows will operate is as following:
speed + torque / 4
Mechanical bellows can accept rotary power from behind.
Mechanical Bellows typically increase the maximum temperature by 250 degrees up to the maximum of additional 750 degrees.
The increase in temperature in target block will slowly drop at a rate of 4 degrees per second.