Combiner

The Combiner is a Mekanism machine with two input slots that joins items together, using 20 FE/t and taking 10 seconds for each operation. Its main recipe turns 8 raw ore and a Cobblestone into one ore block, or a deepslate ore if Cobbled Deepslate is used, while Copper Ore needs 20 Raw Copper. It isn't a step of ore processing and it loses metal, as the rebuilt block is worth 5 ingots at most, whereas 6 raw ore make 20 on a 5x line. Gem dusts can be combined into their ores as well, and it's also used to mix dyes, wax Copper blocks and turn Obsidian Dust back into Obsidian.

Mekanism Wiki Updated 4 min read

The Combiner is a Mekanism machine that puts two items together into one, and its main recipe rebuilds an ore block out of 8 raw ore and a piece of Cobblestone. It uses 20 FE/t (50 J/t) and takes 10 seconds for each operation.

It often gets described as a part of ore processing, but it isn’t one of the steps and it won’t give you more ingots. Putting raw ore through it actually loses most of the metal, so it’s a machine for making ore blocks on purpose, and for a handful of smaller recipes like dye mixing.

How to Make It

The recipe needs a Steel Casing in the middle, 4 Reinforced Alloys in the corners, 2 Elite Control Circuits above and below, and Cobblestone on each side. Other plain stones like Cobbled Deepslate will work in place of the Cobblestone.

Combiner
Reinforced Alloy
Elite Control Circuit
Reinforced Alloy
Cobblestone
Steel Casing
Cobblestone
Reinforced Alloy
Elite Control Circuit
Reinforced Alloy
Crafting Table
→
Combiner

Reinforced Alloy needs Diamond, and the Elite circuits do as well, so this is a mid-game machine and a fairly expensive one for what it does. Alloys and Control Circuits goes through how both of those are made.

How It Works

There are two input slots on the Combiner, a main one and an extra one, along with a single output. The main slot takes the item you’re building with, like raw ore, and the extra slot takes the block it’s combined into, which is used up one at a time.

A Combiner rebuilding ore from Raw Iron and Cobblestone beside an Energy Cube in Mekanism
A Combiner Running

For Iron, Gold, Osmium, Tin, Lead and Uranium, it’s 8 raw ore and 1 Cobblestone for one ore block. Using Cobbled Deepslate in the extra slot gives the deepslate version of the ore, and Copper is a lot more expensive at 20 Raw Copper for each ore.

This Loses Metal

A rebuilt ore block is worth 5 ingots at most, on a full 5x line. The 8 raw ore that went into it would have been worth far more by themselves, as just 6 of them make 20 ingots on that same line. Raw ore is always better off going straight into the first machine.

Recipes

Ore Blocks

The gems and dusts have ore recipes too, which use dust in the main slot instead of raw ore. These are mostly useful for decoration, or for a modpack recipe that asks for the ore block itself.

Combiner ore recipes
Main slot Extra slot Output
8 raw Iron, Gold, Osmium, Tin, Lead or UraniumCobblestone1 ore block
The same 8 raw oreCobbled Deepslate1 deepslate ore block
20 Raw CopperCobblestone1 Copper Ore
8 Raw GoldNetherrack1 Nether Gold Ore
8 Coal DustCobblestone1 Coal Ore
5 Diamond Dust or Emerald DustCobblestone1 Diamond Ore or Emerald Ore
16 Redstone DustCobblestone1 Redstone Ore
27 Lapis Lazuli DustCobblestone1 Lapis Lazuli Ore
14 Quartz DustNetherrack1 Nether Quartz Ore
14 Fluorite DustCobblestone1 Fluorite Ore
2 Netherite DustBasalt1 Ancient Debris

None of these come out ahead when the ore is processed again. A Redstone Ore gives 12 Redstone Dust in an Enrichment Chamber but costs 16 to make, and a Diamond Ore costs 5 Diamond Dust for 2 Diamonds back.

Other Recipes

Outside of ores, it’s able to mix dyes, turn 4 Obsidian Dust and Cobbled Deepslate back into Obsidian, and make Gravel from Flint and Cobblestone. It will also wax Copper blocks with Honeycomb, and Glowstone Dust can be combined with an Ink Sac, Sweet Berries or an Item Frame for the glowing version of each.

The Mekanism Combiner screen with Raw Iron in the main slot and Cobblestone in the extra slot
Raw Iron and Cobblestone Going In

There are a few building recipes as well, like Wheat and Mud for Packed Mud, or 3 Hanging Roots and Dirt for Rooted Dirt. They’re small recipes that you won’t build the machine for, but they’re there to use if you already have one running.

Upgrades and Automation

The Combiner takes up to 8 Speed Upgrades and 8 Energy Upgrades, along with a single Muffling Upgrade. It holds 16,000 FE, which is double what the other basic machines store, and a full set of Speed Upgrades will raise its power use to 2,000 FE/t.

If you’re automating it, both input slots need feeding, so the Cobblestone has to be piped into the extra slot separately from the raw ore. There’s a Combining Factory for it as well. The Osmium Compressor is the other two-input machine from this part of the mod, and it’s a lot more useful.

FAQ

What is the Combiner used for in Mekanism?
›

It combines 8 raw ore with Cobblestone to make an ore block, and it does the same with gem dusts like Diamond Dust and Lapis Lazuli Dust. It’s also used for mixing dyes, waxing Copper and making Obsidian from Obsidian Dust, so it’s more of a utility machine.

Is the Combiner needed for ore tripling or quadrupling?
›

The Combiner isn’t a part of any ore processing tier, and adding one to a line will lower your output. Tripling is done by the Purification Chamber and quadrupling by the Chemical Injection Chamber, and both of those take raw ore directly without it being rebuilt first.

Why does Copper Ore need 20 Raw Copper in the Combiner?
›

The recipe is simply set higher for Copper, at 20 Raw Copper and a Cobblestone for one Copper Ore. The other six metals all use 8 raw ore for each ore block, either with Cobblestone for the stone version or with Cobbled Deepslate for the deepslate one.

How do you make the Combiner in Mekanism?
›

It needs a Steel Casing, 4 Reinforced Alloys, 2 Elite Control Circuits and 2 Cobblestone. The alloys and circuits both use Diamond, which is infused in a Metallurgic Infuser, so it’s a mid-game machine even though its recipes are simple.