Setting Up a Factorio 5 to 4 Balancer the Easy Way

Getting your factorio 5 to 4 balancer right is one of those small logistical hurdles that can feel surprisingly annoying when you're trying to scale up your iron plate production. You've probably been there: you've built out five solid lines of furnaces, but your main bus is strictly designed for four lanes. It's a classic mismatch. If you just merge them randomly, one of those lines is going to back up, your furnaces will stop glowing, and suddenly your science production takes a hit because of a simple throughput bottleneck. ...

February 9, 2026 · 6 min · Solange Jeff