Quick answer: On the standard recipe, one Motor needs 2 Rotor and 2 Stator per craft — 10 Rotor/min plus 10 Stator/min nets 5 Motor/min, a clean 2:2:1 ratio. This guide gives three ready-made layouts: a Rotor factory built around the Cast Screw alternate, a Stator factory, and the compact Motor line that combines them, with every input number checked against the current Satisfactory Wiki.
- free costs nothing
- cheap small cost
- setup needs preparation
- grind pays off slowly
- skip the thing to stop doing
Rotors, Stators and Motors at a glance
Every recipe that touches this chain, in one table, so you can pick a path before committing belts and foundations to it.
| Part | Recipe | Inputs/min | Output/min | Unlocked by | Note |
|---|---|---|---|---|---|
| Rotor | Standard | 20 Iron Rod + 100 Screws | 4 Rotor | Tier 2 | Assembler, 15s cycle. The default path, and the one this guide builds. |
| Rotor | Copper Rotor (alt) | 22.5 Copper Sheet + 195 Screws | 11.25 Rotor | Hard Drive, Tier 2 | Highest raw Rotor output per Assembler, but screw-hungry. |
| Rotor | Steel Rotor (alt) | 10 Steel Pipe + 30 Wire | 5 Rotor | Hard Drive, Tier 3 | No Screws at all. Most efficient by machine count once Steel Pipe and Wire are flowing. |
| Stator | Standard | 15 Steel Pipe + 40 Wire | 5 Stator | Tier 4 | Assembler, 12s cycle. The default path, and the one this guide builds. |
| Stator | Quickwire Stator (alt) | 16 Steel Pipe + 60 Quickwire | 8 Stator | Hard Drive | Needs a Caterium/Quickwire chain running before it's worth switching to. |
| Motor | Standard | 10 Rotor + 10 Stator | 5 Motor | Tier 4 | Assembler, 12s cycle — 2 Rotor and 2 Stator consumed per craft. |
| Motor | Electric Motor (alt) | 3.75 Electromagnetic Control Rod + 7.5 Rotor | 7.5 Motor | Hard Drive, Tier 8 Nuclear Power | Needs Electromagnetic Control Rods — a late-game input, not an early swap. |
| Motor | Rigor Motor (alt) | 3.75 Rotor + 3.75 Stator + 1.25 Crystal Oscillator | 7.5 Motor | Hard Drive | Manufacturer, 48s cycle — a different machine, not a drop-in Assembler swap. |
Rotor factory layout
Rotor uses the standard recipe of 5 Iron Rod + 25 Screw → 1 Rotor per craft on an Assembler (15 seconds, scaling to 20 Iron Rod and 100 Screw per minute for 4 Rotors per minute at full clock -- confirmed on the current Satisfactory Wiki). Five Assemblers hit exactly 20 Rotors per minute. The Screw requirement is heavy -- 500 per minute across five Assemblers -- which is why this layout leans on the Cast Screw alternate recipe (12.5 Iron Ingot in for 50 Screw out per minute per Constructor) rather than the standard Iron Rod-to-Screw chain: ten Constructors running Cast Screw reach exactly 500 Screw per minute.
Tracing the Rotor factory's raw inputs
The Iron Rod side still needs the standard recipe (1 Iron Ingot to 1 Iron Rod, Constructor, 15 Iron Ingot in for 15 Iron Rod out per minute at 100% -- wiki-confirmed): five Assemblers need 100 Iron Rod per minute, which seven Constructors cover with one slightly underclocked. Between the ten Cast Screw Constructors (125 Iron Ingot per minute) and the Iron Rod Constructors (100 Iron Ingot per minute), this layout needs 225 Iron Ingot per minute total -- an exact match to this guide's source video's own stated 225 Iron Ore per minute figure for the whole Rotor factory, since the standard Smelter recipe is a plain 1:1 Iron Ore to Iron Ingot conversion.
Stator factory layout
Stator uses the standard recipe of 3 Steel Pipe + 8 Wire → 1 Stator per craft on an Assembler (12 seconds, scaling to 15 Steel Pipe and 40 Wire per minute for 5 Stators per minute at full clock -- confirmed on the current Satisfactory Wiki). That's exactly why this layout uses four Assemblers for a 20-per-minute target: 4 times 5 is 20, a clean multiple that needs no under- or overclocking at the final stage.
Tracing the Stator factory's raw inputs
Four Assemblers at 20 Stators per minute need 60 Steel Pipe and 160 Wire per minute combined. Steel Pipe's own recipe (3 Steel Ingot to 2 Steel Pipe, Constructor, scaling to 30 Steel Ingot in for 20 Steel Pipe out per minute -- wiki-confirmed) means three Constructors cover that 60-per-minute Steel Pipe requirement exactly, needing 90 Steel Ingot per minute upstream. Wire's recipe (1 Copper Ingot to 2 Wire, Constructor, scaling to 15 Copper Ingot in for 30 Wire out per minute -- wiki-confirmed) means five full Constructors plus one underclocked to 33.333% reach exactly 160 Wire per minute, needing 80 Copper Ingot per minute. Steel Ingot's own recipe (3 Iron Ore + 3 Coal to 3 Steel Ingot, Foundry, scaling to 45/45/45 per minute -- wiki-confirmed) means two Foundries producing 90 Steel Ingot per minute need exactly 90 Iron Ore and 90 Coal per minute -- an exact match to this guide's source video's own stated raw-input figures for the whole layout, which is a strong independent confirmation that the build is genuinely ratio-correct.
The Motor recipe — and a math error worth flagging
Motor uses the standard recipe of 2 Rotor + 2 Stator → 1 Motor per craft on an Assembler (12 seconds, scaling to 10 Rotor and 10 Stator per minute for 5 Motors per minute at full clock -- confirmed on the current Satisfactory Wiki). This guide's source video states that feeding the exact 20 Rotors and 20 Stators per minute produced by the first two layouts into two Assemblers "will be producing 20 Motors per minute" -- but by the wiki's own confirmed rate, two Assemblers at default 100% clock speed produce 10 Motors per minute, not 20, since each Assembler only turns 10 Rotor and 10 Stator per minute into 5 Motors per minute. The video's build itself (two Assemblers, no overclocking mentioned) matches the 10-per-minute figure; only the stated headline number appears to be an error, and this guide corrects it rather than repeating it.
Building the compact Motor factory
The Motor factory itself is deliberately the simplest of the three: a 4×5 platform with two Assemblers fed by a double manifold belt line, one side carrying Rotors and the other Stators, merging into a single output belt into storage. Because it's downstream of the other two factories rather than needing its own raw-resource chain, this is the layout most players can reuse directly regardless of how their Rotor and Stator production is actually built.
Why the ratio trips people up
Motor consumes Rotor and Stator in an equal 2:2 ratio, so the practical trap isn't the ratio itself -- it's that Rotor and Stator have completely different upstream recipes (Iron Rod and Screw versus Steel Pipe and Wire) with different raw-material footprints, which means matching their production rates 1:1 downstream doesn't mean their upstream factories look anything alike. A player who assumes symmetry between the two feeder factories, because the final ratio is 1:1, is the most common way this build goes wrong -- and it's also the most common way a Motor line ends up bottlenecked, with one feeder factory quietly under-producing while the other sits idle waiting on it.
The finished chain
Traced start to finish: raw iron, coal and copper feed two separate factories producing 20 Stators and 20 Rotors per minute respectively, and those two streams combine in a compact final factory to produce Motors -- 10 per minute at default clock speed, using the confirmed recipe rate, ready to overclock further with Power Shards if a specific downstream need calls for more.
Alternate recipes: when to switch
The standard recipes above are the right starting point because they unlock early and need nothing beyond Iron, Steel and Copper you're already running for other parts. Once the save matures, three alternates are worth knowing about:
- Steel Rotor is the long-term upgrade for the Rotor stage once Steel Pipe and Wire are already flowing in volume: 10 Steel Pipe/min + 30 Wire/min for 5 Rotor/min, with no Screws anywhere in the recipe. It's the most efficient Rotor recipe by machine count, and it removes an entire intermediate (Screws) from the factory rather than just rebalancing it.
- Copper Rotor trades a heavier Screw requirement (195 Screws/min) for the highest raw Rotor output per Assembler (11.25 Rotor/min) — useful if Copper Sheet is cheap in your save and Screw throughput isn't the bottleneck, but it doesn't reduce part count the way Steel Rotor does.
- Quickwire Stator (16 Steel Pipe/min + 60 Quickwire/min → 8 Stator/min) is only worth it once a Caterium/Quickwire line is already running for something else — standing one up just for this swap isn't a win.
- Electric Motor and Rigor Motor both push Motor output to 7.5/min per machine, but neither is an early-game swap: Electric Motor needs Electromagnetic Control Rods off a Tier 8 Nuclear Power chain, and Rigor Motor needs Crystal Oscillators and runs in a Manufacturer instead of an Assembler, which changes the floor plan, not just the recipe.
If you're optimizing one stage at a time, Steel Rotor is the first swap to make — it's a strict upgrade in machine efficiency and it simplifies the factory rather than complicating it.
FAQ
What is the best rotor recipe? Steel Rotor (10 Steel Pipe/min + 30 Wire/min → 5 Rotor/min) is the most efficient once Steel Pipe and Wire are already online, since it needs no Screws at all. Before that infrastructure exists, the standard recipe with the Cast Screw alternate — the build this guide walks through — is the practical early-game choice.
How many Rotors per minute does one Motor need? Two. The standard Motor recipe consumes 10 Rotor/min and 10 Stator/min to produce 5 Motor/min, which is 2 Rotor and 2 Stator per Motor crafted.
Is it true that two Motor Assemblers make 20 Motors/min? No — that number comes from a math error in the source video this guide fact-checks against. The wiki-confirmed rate is 5 Motor/min per Assembler on the standard recipe, so two Assemblers produce 10 Motors/min, not 20.
What raw inputs does the Stator factory actually need? Steel Pipe and Wire, which trace back to two separate smelting lines: Steel Ingots (Iron Ore plus Coal) for the Steel Pipe side, and Copper Ingots for the Wire side.
When should I switch off the standard Rotor and Stator recipes? Switch to Steel Rotor as soon as Steel Pipe and Wire throughput can support it — it's a straightforward efficiency win. Quickwire Stator and the Motor alternates are only worth it once their respective input chains (Caterium/Quickwire, or Nuclear Power and Crystal Oscillators) are already built for other reasons.
Sources
The standard Stator recipe (3 Steel Pipe + 8 Wire, 5/min), Rotor recipe (5 Iron Rod + 25 Screw, 4/min), Motor recipe (2 Rotor + 2 Stator, 5/min), Steel Pipe recipe (20/min), Wire recipe (30/min), Steel Ingot recipe (45/min) and the Cast Screw alternate (12.5 Iron Ingot in for 50 Screw out per minute) are all confirmed on the current Satisfactory Wiki, along with the alternate recipes in the tables above (Copper Rotor, Steel Rotor, Quickwire Stator, Electric Motor, Rigor Motor). Every raw-input total this guide's source video states -- 90 Iron Ore, 90 Coal and 80 Copper for the Stator factory; 225 Iron Ore for the Rotor factory -- checks out as an exact match once traced back through those confirmed per-machine rates, which is strong evidence the underlying builds are genuinely ratio-correct. The one figure that doesn't check out is the claimed "20 Motors per minute" from two default-clocked Assemblers, which the wiki's own Motor recipe rate puts at 10 per minute instead -- flagged above rather than repeated. The specific machine counts, belt tiers, splitter and merger placements all come directly from the source video's own on-screen builds.
Read next
- Satisfactory Space Elevator Phase 1 Guide — where this rotor setup feeds into
- Satisfactory Best Alternate Recipes Guide — more on this rotor factory layout and other alternates worth unlocking
- Satisfactory Modular Frames Production Guide — how Rotors and Motors feed into Modular Frame production
Frequently asked
How many Rotors and Stators does it take to make Motors?
Motor uses 2 Rotor and 2 Stator per craft on an Assembler, scaling to 10 Rotor and 10 Stator per minute for 5 Motors per minute at full clock. Two Assemblers at default 100% clock speed running this recipe produce 10 Motors per minute total.
Why use the Cast Screw alternate recipe for a Rotor factory?
Rotor needs 25 Screw per craft, which adds up fast across multiple Assemblers -- 500 Screw per minute for five Assemblers making 20 Rotors per minute. Cast Screw produces Screws directly from Iron Ingots, letting ten Constructors cover that entire requirement without a separate Iron Rod-to-Screw chain.
How much raw ore does a 20-per-minute Stator factory need?
90 Iron Ore and 90 Coal per minute for Steel Ingot production, plus 80 Copper Ore (as Copper Ingot) for Wire production -- confirmed by tracing the Stator, Steel Pipe, Wire and Steel Ingot recipes back through their wiki-confirmed per-machine rates.
Why does the Rotor and Stator ratio trip people up if it's a simple 1:1?
Because Rotor and Stator have completely different upstream recipes -- Iron Rod and Screw versus Steel Pipe and Wire -- so matching their final output 1:1 doesn't mean their feeder factories look anything alike. Assuming symmetry between the two is the most common way this build goes wrong.
Are there alternate recipes for Rotors and Stators?
Yes -- Copper Rotor and Steel Rotor for Rotors, Quickwire Stator for Stators, and Electric Motor/Rigor Motor for Motors. Steel Rotor (10 Steel Pipe + 30 Wire for 5 Rotor/min) is the standout: it needs no Screws at all and is the most efficient Rotor recipe once Steel Pipe and Wire are flowing.
What is the best rotor recipe?
Steel Rotor (10 Steel Pipe/min + 30 Wire/min → 5 Rotor/min) is the most efficient once Steel Pipe and Wire are already online, since it needs no Screws at all. Before that infrastructure exists, the standard recipe with the Cast Screw alternate — the build this guide walks through — is the practical early-game choice.
How many rotors per minute does one motor need?
Two Rotor per Motor on the standard recipe: 10 Rotor/min and 10 Stator/min go into an Assembler for 5 Motor/min, which is 2 Rotor and 2 Stator consumed per Motor crafted.