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Lab

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Lab.png
Lab

Machine

Recipe

Time icon.png
2
+
Electronic circuit.png
10
+
Iron gear wheel.png
10
+
Transport belt.png
4
Lab.png
1

Total raw

Time icon.png
21.5
+
Copper plate.png
15
+
Iron plate.png
36

Recipe

Time icon.png
2
+
Electronic circuit.png
10
+
Iron gear wheel.png
10
+
Transport belt.png
4
Lab.png
1

Total raw

Time icon.png
39
+
Copper plate.png
50
+
Iron plate.png
70

Health

150

Stack size

10

Dimensions

3x3

Energy consumption

60 kW (electric)

Module slots

2 slots

Required technologies

None required

Produced by

Hand icon.png
Assembling machine 2.png
Assembling machine 3.png
Science packs put into the front lab will be passed to labs behind it.

Labs are buildings that perform research for technologies by consuming science packs. Use of a lab is required to progress in Factorio.

The player can only research one technology at a time, but can use multiple labs for faster results. The speed bonus of labs when Lab research speed is researched and modules are present can be calculatd using this formula: research_bonus * module_bonus = speed_bonus; the percentage bonuses have to be converted to decimals (e.g. +140% = 2.4) before the formula is used.

When productivity modules are used in labs, the productivity bonus is directly calculated and applied each tick so the productivity bar is simply cosmetic. This means that it does not matter that the productivity bar resets when the research is changed, no productivity bonus is lost. [1]

Production requirements

Calculating the number of science packs needed per second is straightforward:

  • Adjusted Cycle Time = <in-game Cycle Time> /((<in-game Lab Research Speed> / 100) + 1)
  • Packs per Second = 1 / (Adjusted Cycle Time / <# of labs>)

Thus, for a 10 lab setup, researching Nuclear Power (30 second cycle time) with Lab Research Speed 4 (140% bonus), the math would be:

  • ACT = 30 / ((140 / 100) + 1)
    • = 12.5 seconds, adjusted cycle time
  • PPS = 1 / (12.5 / 10)
    • = 0.8 Science per second

This means 0.8 science packs per second, of each type, would need to be produced to continuously supply the labs.

History

  • 0.12.6:
    • The research speed of a lab is now not dependent on its electricity consumption, and can be scripted.
  • 0.12.0:
    • Lab research is now continuous; Science packs now have progress bars.
  • 0.9.2:
    • Labs are now named after early access backers when built from blueprints.
  • 0.7.2:
    • Changed the recipe of Lab to require 4 transport belts, down from 5.
  • 0.2.7:
    • Contents of the Lab is now shown in the entity info.

See also