How to Make Oxygen in Gregtech CEu

As you progress toward medium voltage in Gregtech CEu, oxygen production becomes an essential component of your setup. This guide walks you through creating a fully automated oxygen generation system that will support your journey through the mod. Whether you’re a beginner or looking to optimize your ore processing, this tutorial covers everything you need to know about oxygen production and its applications in advanced crafting.

Understanding the Oxygen Setup

A fully automated oxygen production line is the most efficient approach, though automation is optional depending on your needs. In this setup, we’ll be using low voltage machines powered by creative energy (ideal for testing in a superflat world). If you’re on a survival server, you can pipe voltage from a steam turbine instead.

To activate the creative energy block, place it down, click on it, set it to low voltage, activate it, and place an additional machine next to it.

The Complete Processing Chain

The oxygen production line requires a series of connected machines. To prevent jamming, ensure that inputs and outputs face opposite sides of each machine, and set all machines to auto mode so they automatically pull items from the previous machine.

Step-by-Step Machine Sequence

Basic Rock Crusher: Start with water and lava inputs on one side. The rock crusher will generate cobblestone continuously.

First Four Chamber: Crushes cobblestone into gravel.

Second Four Chamber: Converts gravel into sand.

Electric Furnace: Transforms sand into glass.

Basic Macerator: Grinds glass into glass dust.

Basic Centrifuge: Processes glass dust into silicon dioxide.

Basic Electrolyzer: The final step produces silicon dust and oxygen gas as outputs.

Processing Line Summary

Here’s the complete machine sequence in order:

Basic Rock Crusher → Cobblestone input

Four Chamber (1st) → Gravel

Four Chamber (2nd) → Sand

Electric Furnace → Glass

Macerator → Glass Dust

Centrifuge → Silicon Dioxide

Electrolyzer → Silicon Dust + Oxygen Gas

Using Your Oxygen

The oxygen gas produced will be transferred through fluid pipes in Gregtech. One major application for this oxygen is in the production of diodes, which are crucial for crafting advanced electronic circuits. The diode crafting process is complex and involves gallium arsenide dust, making oxygen a key ingredient in your medium voltage progression.

Conclusion

You now have a complete, automated oxygen production system ready to support your Gregtech CEu progression. By following this processing chain from cobblestone to oxygen gas, you’ll have a reliable supply for electronic circuit production and other advanced crafting. With this system in place, you’re well on your way to achieving medium voltage and beyond.

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