Electric Smelter
Whole ore stacks into ingots in minutes, cast in exactly the amount you want.
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Production
Filter Washer and Filter Shredder for used gas filters: wash them back to 100 % with water or press a new one from four of the same kind.

Two machines for used gas filters, both with custom models: the Filter Washer washes up to four filters back to 100 % with water from a pipe and returns the same amount of polluted water. The Filter Shredder shreds filters into a stock per kind and presses a new one from four of the same kind. Both take all 16 gas types in all 4 sizes – standard, medium, heavy and catalytic, 64 filters in total.
Filter Washer
Filter Shredder
Display at eye level, LEDs, AUTO or MANUAL mode, full IC10 control and the console command filter. Labels, display and device names appear in German or English, depending on the game language. The server and all players need the mod.
Full guide: Filter Recycling in the wiki
First release: Filter Washer (washes gas filters back to 100 %, water in, polluted water out) and Filter Shredder (4 of the same kind make a new one) for all 16 gas types in all 4 sizes, with custom models, display, LEDs, IC10 and the console command filter.
Yes. In the game code catalytic filters have the lifetime "SuperHeavy": they lose 1 % after 11,520 filtering ticks instead of 144 for a standard filter. So they last 80 times longer, about 160 hours of pure filtering, but not forever. The Filter Washer washes them back to 100 % like all others, with the longest cycle (8 L of water, 60 s, 900 W for a fully used filter). In the shredder four catalytic filters of the same gas type make a catalytic filter again – they are never converted into other kinds. More in the guide.
The display and the tooltip show the reason. The washer pauses on NO WATER (not enough liquid water at the left inlet, polluted water does not count), OUTLET FULL (the polluted water pipe on the right is 90 % full or above 3000 kPa – empty it or feed it into a water purifier), PIPE MISSING (both connections need a liquid pipe) and NO POWER. Once the cause is fixed, the cycle continues by itself. If it shows PRESS START, MANUAL mode is set: press START or switch to AUTO with the MODE button.
Whole ore stacks into ingots in minutes, cast in exactly the amount you want.