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Base gameMade in 1.1

4 to 4 belt balancer (4x4)

4 to 4 belt balancer (4x4) is a blueprint with 34 entities in a 10×4 tile area. It works without Space Age. Copy the string and import it from the blueprint library.

Top-down preview of 4 to 4 belt balancer (4x4)
  • Yellow belts 34
Simplified drawing: each colour is a building type, not game graphics. Zoom in and hover a building to see what it is and what it makes.

About this build

A compact 4 to 4 belt balancer: 10 by 4 tiles with 6 splitters. The 4 to 4 is the balancer most bases need: four lanes of ore or plates in, four evenly loaded belts out. Built from yellow belts, so it is the cheapest version and fits anywhere: run an upgrade planner over it for red, blue or turbo belts, whose longer undergrounds still connect.

A balancer spreads every input belt evenly over every output belt, so a factory line downstream gets the same share from each lane of ore or plates. These were found by Factorio-SAT, a program that uses a SAT solver to search for the smallest balancer of each size.

Before you place it

  • Clear a space of at least 10 × 4 tiles.
  • It works in the base game without Space Age.
  • It was made in Factorio 1.1; the game converts it when you import it, so check it once after placing.

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What it uses

  • Transport belt24
  • Splitter6
  • Underground belt4

Facts

TypeBlueprint
Game version1.0.0 (made before 2.0; Factorio 2.0 converts it when you import, check it after placing)
Space AgeNot required
Size10 × 4 tiles
Entities34
CheckedPassed an automated check against Factorio 2.1 game data: no overlapping buildings, unknown buildings or unknown recipes.

Base gameBelt balancer

Numbers behind builds like this: belt speeds: items per second for every belt

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