Arc Furnace

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"(ore|Ore),4000(Material|Ingots)" can not be assigned to a declared number type with value 4000.
Arc Furnace Icon.png
Large Ship Icon.png
Large Ship / Station
Arc Furnace


Mass (kg):
Build time (seconds):
Refine Time (base seconds):
Material Efficiency (%):
Active power consumption (MW):
Idle Power Consumption (MW):
Storage Capacity (L):
4000 (Ore), 4000 (Ingots)
Yes - all orientations
Power Consumer Group:
Dimensions (W x H x D):
1 x 2 x 1


The Arc Furnace is similar to its larger counterpart the Refinery in that it refines Ores into Ingots. However, it is limited to only refining Iron Ore, Nickel Ore, and Cobalt Ore. The arc furnace is 8x smaller, is slightly more efficient for 12.5% in refining these ores, requires far fewer Components to build, refines at 1.2x the speed, and costs 40% less power to use.

However, unlike the larger and more expensive Refinery, it has no attachment ports allowing it to be upgraded. Despite its inherent speed benefits, a fully specialized Refinery is superior to the Arc Furnace for all specializations except physical space and resources to construct.


Operating the Arc Furnace is similar to the Refinery. A simple example of its use is below:

Example Tutorial
  1. Build/place your Arc Furnace anywhere you like
    • If connected to a Conveyor Network, the furnace will automatically draw Ores from another inventory. However, for this example we will be placing the ores in manually.
  2. While close to the large conveyor port door; open the inventory.
  3. Drag your ore from your inventory on the left, and place inside the Arc Furnace. It will now begin processing automatically.

Control Panel

Control Panel
Options Comments
Toggle block Turns the device on, or off.
Name You can enter in your own custom name in the text box
Show on HUD If there is an Antenna attached to the same grid, this device will display its position on the players HUD
Use Conveyor System If "on" allows the arc furnace to automatically draw iron ore from other inventories connected to it

Refining Rates (v1.080)

Raw Input Raw Output Ingots Ingots
Kg/hour sec/kg Kg/hour sec/kg
Scrap Metal Icon.png Scrap Metal 144000 0.03 103680 0.03 Iron Ingot Icon.png Iron Ingot
Iron Ore Icon.png Iron Ore 115200 0.03 72576 0.05
Nickel Ore Icon.png Nickel Ore 2880 1.25 1037 3.47 Nickel Ingot Icon.png Nickel Ingot
Cobalt Ore Icon.png Cobalt Ore 1440 2.50 389 9.26 Cobalt Ingot Icon.png Cobalt Ingot
Based on game data file content.
Ore consumed per second = Refinery Speed * Blueprint Input / Blueprint Processing Time.
Ingots produced per second = Refinery Speed * Refinery Material Efficiency * Blueprint Output / Blueprint Processing Time.




Known Issues

Related Items


Update History

Update 01.057
  • Fixed mirroring of arc furnace
Update 01.052
  • Arc furnace can now refine more metals, the Arc Furnace was only capable of refining Iron Ore previously
Update 01.048
  • Fixed cannot stack items in production queue
Hotfix 01.045.013
  • Fixed 'Arc furnace' building progress models
  • Changed name of Blast furnace to “Arc furnace”
Update 01.045
  • Arc Furnace’ (Previously Blast furnace) introduced