2 to 1 (Yellow Belt balancer)
- Size (tiles, width x length)
- 2 x 3
- Throughput unlimited
- Yes
Factorio BlueprintsAll belt balancersFactorio 2 to 1 Balancer Blueprint
Merges two belts into one with a single splitter that takes evenly from both. Yellow, red and blue versions, each 2 x 3 tiles.

In-game render of the 2 to 1 balancer blueprint
String from a Factorio 1.1 book. Decoded and checked by this site; not test-imported into 2.0.
Yes. The design is one splitter, and a splitter moves its full rate between whichever of its two inputs and two outputs are in use, so there is no internal bottleneck.
Separate yellow, red and blue versions exist, one per splitter tier. The tier of the splitter decides how much it can carry, so take the version that matches your belts; the blue one is shown first and the other two are listed below.
Separate yellow, red and blue versions are provided; the splitter tier sets the throughput.
The yellow and red versions use basic and fast parts in the same 2 x 3 shape. Match the splitter tier to your belts, since the splitter sets the maximum flow.
Your browser blocked copying. Click the string box, select all and copy it yourself.
This string comes from a Factorio 1.1 blueprint book and was not test-imported into 2.0. Copy it and press Import string on the shortcut bar in the game. The whole build is one splitter and three belts, so it takes seconds to place by hand if the import fails.