🟢 Verified Guide • Nauvis & Vulcanus Engineering Society • 7 min read

Factorio 2.0 Space Age: Belt Speeds, Smelting Columns & Ratio Balancing Guide

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Published by Nauvis & Vulcanus Engineering Society • Updated for 2026 Season

📋 Step-by-Step Instructions

Step 1: Memorize the 15 / 30 / 45 / 60 Items/s Belt Hierarchy

In Factorio 2.0: Yellow Belts transfer 15 items/sec (900/min); Red Belts double to 30 items/sec (1,800/min); Blue Belts reach 45 items/sec (2,700/min); and Space Age Green Belts hit 60 items/sec (3,600/min). Each lane holds exactly half of the total throughput.

Step 2: Build Perfect Smelting Columns for Full Belt Output

Iron and Copper Ore take 3.2 seconds base to smelt. A Stone Furnace (crafting speed 1.0) smelts 1 ore every 3.2s; a Steel or Electric Furnace (speed 2.0) smelts 1 ore every 1.6s. To saturate 1 Yellow Belt (15/s), build 48 Stone or 24 Steel Furnaces. For 1 Blue Belt (45/s), build 72 Steel Furnaces (36 per side).

Step 3: Apply the 3:2 Direct Insertion Ratio for Electronic Circuits

Electronic Circuits (Green Chips) require 3 Copper Cables and 1 Iron Plate every 0.5 seconds. Because Copper Cable crafting produces 2 cables every 0.5s, 3 Copper Cable assemblers produce 6 cables/s—exactly feeding 2 Green Chip assemblers with zero conveyor belts between them.

Step 4: Deploy Throughput-Unlimited Lane Balancers at Unloading Depots

When train wagons unload, uneven belt drawing starves one wagon while another remains full. Place 4x4 or 8x8 throughput-unlimited splitters to ensure every input lane redistributes evenly across all output lanes regardless of downstream blockages.

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❓ Frequently Asked Questions

What is the difference between a belt balancer and a lane balancer?

A belt balancer distributes items evenly across multiple conveyor belts (e.g. 4 inputs to 4 outputs). A lane balancer balances the left and right halves of a single conveyor belt to prevent one half from clogging when inserters only pull from one side.

How do Space Age Vulcanus Foundries alter smelting ratios?

Vulcanus Foundries craft at 4.0x speed, use molten iron and copper from lava/calcite, and have built-in +50% productivity bonuses. One single Foundry replaces up to 8 standard electric furnaces while using zero solid ore.

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