Quartz and Crystal Oscillators in Satisfactory

Crystal Oscillators are the part that makes people think something is broken. One per minute, from a machine drawing 55 MW, is the correct behaviour — and it is why the quartz chain needs planning rather than improvisation.

The rates, and why they hurt

Crystal Oscillator, base recipe: 18 Quartz Crystal + 14 Cable + 2 Reinforced Iron Plate produces 1 per minute in a Manufacturer drawing 55 MW.

That is the slowest meaningful production rate in the game at that point, and oscillators feed Radio Control Units, Computers and several late-game frames. A phase asking for a few hundred oscillators is asking for a serious line.

Alternate: Insulated Crystal Oscillator produces 1.9 per minute from 19 Quartz Crystal + 13 Rubber + 2 AI Limiter, at the same 55 MW.

Nearly double the output per machine for the same power. If you are building oscillators in quantity, this alternate is worth going out of your way for — it roughly halves the number of Manufacturers, foundations and belts the line needs.

Raw quartz splits two ways, and they compete

Every Raw Quartz node feeds two different products, and they draw from the same supply:

Product	Base recipe	Rate
Quartz Crystal	38 Raw Quartz	22.5/min
Silica	22 Raw Quartz	37.5/min

Silica goes into Alclad Aluminum Sheet, Crystal Oscillators indirectly through other chains, and a range of mid-game parts. Quartz Crystal goes into oscillators and further up.

Both matter, and there are far fewer quartz nodes than iron or copper nodes. Deciding the split deliberately, rather than building whichever line you needed first, is the difference between a quartz outpost that supports your factory and one that starves half of it.

The alternates that change the maths

Four recipes materially change how much quartz you need.

Alternate: Quartz Purification — 120 Raw Quartz + 10 Nitric Acid gives 75 Quartz Crystal/min, plus 60 Dissolved Silica as a byproduct. More than three times the base recipe’s output per machine, and the byproduct feeds directly into silica production. The cost is a Nitric Acid supply and a Refinery at 30 MW.

Alternate: Fused Quartz Crystal — 75 Raw Quartz + 36 Coal gives 54/min. Coal is abundant and this needs no fluids, which makes it the easiest large upgrade to adopt.

Alternate: Pure Quartz Crystal — 68 Raw Quartz + 38 Water gives 52.5/min. Similar output to Fused, trading coal for water.

Alternate: Distilled Silica — 120 Dissolved Silica + 50 Limestone + 100 Water gives 270 Silica/min, returning 80 Water. This is the recipe that pairs with Quartz Purification: the byproduct of one becomes the input of the other, and the combination produces silica at a rate the base recipe cannot approach.

The comparator on this site ranks all of these on raw ore per unit if you want to check a specific pairing against your own node supply.

The Purification and Distilled Silica loop

Worth spelling out because it is the single largest improvement available in this chain.

Quartz Purification consumes Raw Quartz and produces Quartz Crystal plus Dissolved Silica. Distilled Silica consumes Dissolved Silica and produces Silica plus Water.

Chained together, one quartz input stream produces both products at high rates, with the intermediate byproduct handled by the next stage rather than needing a sink.

The usual byproduct warning applies: if the Dissolved Silica output has nowhere to go, the Refinery stops, taking your Quartz Crystal production with it. Build the second stage at the same time as the first, or put an overflow valve to a sink on the dissolved silica line.

Sizing an oscillator line

Work backwards, because the numbers compound badly.

One base-recipe oscillator per minute consumes 18 Quartz Crystal per minute. A base Quartz Crystal machine produces 22.5/min. So roughly one crystal machine feeds one oscillator machine, and each oscillator machine gives you one per minute.

Ten oscillators per minute therefore means ten Manufacturers at 55 MW each — 550 MW before the quartz chain feeding them.

With the Insulated alternate at 1.9/min, the same ten per minute needs six Manufacturers rather than ten. With Quartz Purification upstream, one Refinery replaces three or four Constructors on the crystal side.

Those two changes together turn an oscillator line from a project into a module. It is the clearest case in the game for chasing specific alternates rather than taking whatever a hard drive offers.

Where to put the quartz outpost

Raw Quartz nodes are less evenly distributed than iron or copper, which means the site choice is usually made for you by the map rather than by preference. Two considerations change how the outpost is built.

Decide locally or ship raw. Quartz Crystal and Silica are both fewer items per unit of raw quartz than the ore itself, so processing at the node reduces what you transport. The exception is the Purification route, which needs Nitric Acid delivered to the site — at which point you are shipping a fluid in to avoid shipping ore out, and the comparison is closer.

Power reaches quartz sites late. A Refinery at 30 MW plus Manufacturers at 55 MW each is a serious load for an outpost. Running a line from your main grid is usually simpler than building local generation, and it means the site benefits from every subsequent power upgrade automatically.

Checking your own numbers

The rates above are per machine at 100% clock. Two adjustments are worth making before committing to a layout.

Node purity changes everything upstream. An impure quartz node produces half what a normal one does, so a plan built around normal-purity numbers will run at half rate on the wrong site.

Underclock rather than starve. If your quartz supply supports 3.4 crystal machines, build four and underclock them to fit rather than running three at full rate and one sputtering. Power scales by an exponent, so four machines at 85% draw less than three at 100% plus one cycling.

Common mistakes

Assuming one per minute is a bug. It is the base recipe’s actual rate.

Building the oscillator line before securing quartz. Nodes are comparatively scarce; the machine is not the constraint.

Letting silica and crystal lines compete unplanned. Both draw from the same nodes. Decide the split.

Running Quartz Purification without somewhere for Dissolved Silica to go. The Refinery stops entirely.

Not pursuing the alternates. Few chains in the game reward specific alternate recipes as heavily as this one.