# Building ratios & manifolds

> Canonical source: [Building ratios & manifolds](https://satisfactorybase.its-live.dev/guides/ratios)
> Language: en

Version check pending: The printed base-rate and classic-ratio tables are editorial values, not live calculator results, and need comparison with current recipes.

Base rates of the standard recipes and the classic machine ratios for plates, rods, screws, frames, rotors, motors, steel, circuit boards, computers and aluminium – plus manifold vs. balancing.


All rates are for the **standard recipes at 100 %** clock, computed from the game data. Alternate recipes change the ratios – check the recipe pages or let the [planner's Magic Wand](/guides/using-satisfactorybase#magic-wand) solve the chain.

## Base rates

| Recipe | Machine | Input /min | Output /min |
|---|---|---|---|
| Iron Ingot | Smelter | 30 Iron Ore | 30 |
| Copper Ingot | Smelter | 30 Copper Ore | 30 |
| Caterium Ingot | Smelter | 45 Caterium Ore | 15 |
| Steel Ingot | Foundry | 45 Iron Ore + 45 Coal | 45 |
| Aluminum Ingot | Foundry | 90 Aluminum Scrap + 75 Silica | 60 |
| Iron Plate | Constructor | 30 Iron Ingot | 20 |
| Iron Rod | Constructor | 15 Iron Ingot | 15 |
| Screws | Constructor | 10 Iron Rod | 40 |
| Wire | Constructor | 15 Copper Ingot | 30 |
| Cable | Constructor | 60 Wire | 30 |
| Concrete | Constructor | 45 Limestone | 15 |
| Copper Sheet | Constructor | 20 Copper Ingot | 10 |
| Quickwire | Constructor | 12 Caterium Ingot | 60 |
| Steel Beam | Constructor | 60 Steel Ingot | 15 |
| Steel Pipe | Constructor | 30 Steel Ingot | 20 |
| Silica | Constructor | 22.5 Raw Quartz | 37.5 |
| Quartz Crystal | Constructor | 37.5 Raw Quartz | 22.5 |
| Aluminum Casing | Constructor | 90 Aluminum Ingot | 60 |
| Reinforced Iron Plate | Assembler | 30 Iron Plate + 60 Screws | 5 |
| Modular Frame | Assembler | 3 Reinforced Iron Plate + 12 Iron Rod | 2 |
| Rotor | Assembler | 20 Iron Rod + 100 Screws | 4 |
| Stator | Assembler | 15 Steel Pipe + 40 Wire | 5 |
| Motor | Assembler | 10 Rotor + 10 Stator | 5 |
| Encased Industrial Beam | Assembler | 18 Steel Beam + 36 Concrete | 6 |
| Circuit Board | Assembler | 15 Copper Sheet + 30 Plastic | 7.5 |
| AI Limiter | Assembler | 25 Copper Sheet + 100 Quickwire | 5 |
| Alclad Aluminum Sheet | Assembler | 30 Aluminum Ingot + 10 Copper Ingot | 30 |
| Heavy Modular Frame | Manufacturer | 10 Modular Frame + 40 Steel Pipe + 10 Encased Industrial Beam + 240 Screws | 2 |
| Computer | Manufacturer | 10 Circuit Board + 20 Cable + 40 Plastic | 2.5 |
| High-Speed Connector | Manufacturer | 210 Quickwire + 37.5 Cable + 3.75 Circuit Board | 3.75 |
| Crystal Oscillator | Manufacturer | 18 Quartz Crystal + 14 Cable + 2.5 Reinforced Iron Plate | 1 |
| Plastic | Refinery | 30 m³ Crude Oil | 20 (+ 10 m³ Heavy Oil Residue) |
| Rubber | Refinery | 30 m³ Crude Oil | 20 (+ 20 m³ Heavy Oil Residue) |
| Fuel | Refinery | 60 m³ Crude Oil | 40 m³ (+ 30 Polymer Resin) |
| Residual Fuel | Refinery | 60 m³ Heavy Oil Residue | 40 m³ |
| Petroleum Coke | Refinery | 40 m³ Heavy Oil Residue | 120 |
| Alumina Solution | Refinery | 120 Bauxite + 180 m³ Water | 120 m³ (+ 50 Silica) |
| Aluminum Scrap | Refinery | 240 m³ Alumina + 120 Coal | 360 (+ 120 m³ Water) |

## Classic machine ratios

| Chain | Ratio (machines) | Result |
|---|---|---|
| [Iron Plate](/wiki/items/iron-plate) | 1 Smelter : 1 Constructor (Plate) | 20 Plate/min from 30 ore |
| [Iron Rod](/wiki/items/iron-rod) | 1 Smelter : 2 Constructors (Rod) | 30 Rod/min from 30 ore |
| [Screws](/wiki/items/screws) | 1 Smelter : 2 Rod : 3 Screw | 120 Screws/min from 30 ore |
| [Wire](/wiki/items/wire) / [Cable](/wiki/items/cable) | 1 Smelter : 2 Wire : 1 Cable | 30 Cable/min from 30 Copper Ore |
| [Copper Sheet](/wiki/items/copper-sheet) | 2 Smelters : 3 Constructors (Sheet) | 30 Sheet/min from 60 ore |
| [Concrete](/wiki/items/concrete) | 1 Miner Mk.1 normal (60 Limestone) : 1⅓ Constructors | 20 Concrete/min; whole numbers: 3 Constructors per 135 Limestone = 45/min |
| **[Reinforced Iron Plate](/wiki/items/reinforced-iron-plate)** | 2 Smelters : 1.5 Plate : 1 Rod : 1.5 Screw : 1 Assembler | 5 RIP/min from 60 ore. ×2 in whole numbers: **4 Smelters, 3 Plate, 2 Rod, 3 Screw, 2 Assemblers → 10 RIP/min from 120 Iron Ore** (1 Miner Mk.2 normal / Mk.1 pure) |
| **[Modular Frame](/wiki/items/modular-frame)** | 1 Assembler needs 3 RIP/min (0.6 RIP Assembler) + 12 Rod/min (0.8 Rod Constructor) | 2 MF/min from 48 Iron Ore. ×5: 5 MF Assemblers, 3 RIP Assemblers, 4.5 Plate, 3 Rod (RIP) + 4 Rod (MF), 4.5 Screw Constructors, 10 Smelters → 10 MF/min from 300 ore |
| [Rotor](/wiki/items/rotor) | 1 Assembler needs 20 Rod + 100 Screws = 1⅓ Rod Constructors + 2.5 Screw Constructors (the 25 Rod/min for screws) → 45 Rod/min = 3 Rod Constructors, 3 Smelters | 4 Rotor/min from 90 ore; ×3: 3 Rotor Assemblers, 9 Rod, 7.5 Screw Constructors, 9 Smelters → 12 Rotor/min |
| [Stator](/wiki/items/stator) | 1 Assembler needs 15 Steel Pipe (0.75 Pipe Constructor, 22.5 Steel Ingot = 0.5 Foundry) + 40 Wire (1⅓ Wire Constructors, 20 Copper Ingot) | 5 Stator/min; ×4: 4 Stator, 3 Pipe, 2 Foundries, 5⅓ Wire → 20 Stator/min |
| **[Motor](/wiki/items/motor)** | 1 Motor Assembler : 2.5 Rotor Assemblers : 2 Stator Assemblers | 5 Motor/min; ×2: 2 Motor, 5 Rotor, 4 Stator → 10 Motor/min |
| [Steel Beam](/wiki/items/steel-beam) | 1 Foundry (45 Steel Ingot) : 0.75 Beam Constructor | whole numbers: 4 Foundries : 3 Beam → 45 Beam/min |
| [Steel Pipe](/wiki/items/steel-pipe) | 1 Foundry : 1.5 Pipe Constructors | whole numbers: 2 Foundries : 3 Pipe → 60 Pipe/min |
| [Encased Industrial Beam](/wiki/items/encased-industrial-beam) | 1 Assembler needs 18 Beam (1.2 Beam Constructors, 72 Steel Ingot = 1.6 Foundries) + 36 Concrete (2.4 Constructors) | 6 EIB/min; ×5: 5 EIB, 6 Beam, 8 Foundries, 12 Concrete → 30 EIB/min |
| **[Heavy Modular Frame](/wiki/items/heavy-modular-frame)** | 1 Manufacturer needs 10 MF (5 MF Assemblers), 40 Pipe (2 Pipe Constructors), 10 EIB (1⅔ EIB Assemblers), 240 Screws (6 Screw Constructors, 60 Rod/min = 4 Rod Constructors) | 2 HMF/min; rough ore demand: ≈ 300 Iron Ore (MF) + 60 Iron Ore (screws) + steel for 40 Pipe + 30 Beam (≈ 180 Iron Ore + 180 Coal) + 180 Limestone |
| [Circuit Board](/wiki/items/circuit-board) | 1 Assembler needs 15 Copper Sheet (1.5 Sheet Constructors, 1 Smelter) + 30 Plastic (1.5 Plastic Refineries) | 7.5 CB/min; ×2: 2 CB, 3 Sheet, 2 Smelters, 3 Plastic Refineries (90 m³ Crude) → 15 CB/min |
| **[Computer](/wiki/items/computer)** | 1 Manufacturer needs 10 CB (1⅓ CB Assemblers), 20 Cable (⅔ Cable Constructor), 40 Plastic (2 Refineries) | 2.5 Computer/min; ×3: 3 Computer Manufacturers, 4 CB Assemblers, 2 Cable Constructors, 6 + 2 = 8 Plastic Refineries (240 m³ Crude Oil) → 7.5 Computer/min |
| [Quickwire](/wiki/items/quickwire) | 1 Smelter (Caterium, 45 ore) : 1.25 Constructors | whole numbers: 4 Smelters : 5 Quickwire → 300 Quickwire/min from 180 Caterium Ore |
| Fuel power | 1 Refinery Fuel : 2 Fuel Generators | 500 MW per 60 m³ Crude Oil; Polymer Resin 30/min → Residual Plastic/Rubber or sink |
| Alumina → Ingot | 2 Refineries Alumina (240 Bauxite, 360 m³ Water, 100 Silica) : 1 Refinery Scrap (120 Coal, returns 120 m³ Water) : 4 Foundries Aluminum Ingot (360 Scrap + 300 Silica) | 240 Aluminum Ingot/min; extra Silica 300 − 100 = 200 (5⅓ Silica Constructors, 120 Raw Quartz); net water 240 m³ (2 Water Extractors) |

## Belt saturation and miner matching

| Miner / node | Rate (100 %) | Matching belt | Overclock target |
|---|---|---|---|
| Mk.1 impure / normal / pure | 30 / 60 / 120 | Mk.1 (60) for normal; pure needs Mk.2 | Mk.1 normal at 200 % = 120 (Mk.2) |
| Mk.2 impure / normal / pure | 60 / 120 / 240 | Mk.2 / Mk.2 / Mk.3 (270) | Mk.2 pure at 250 % = 600 → Mk.5 (780) |
| Mk.3 impure / normal / pure | 120 / 240 / 480 | Mk.2 / Mk.3 / Mk.5 | Mk.3 pure at 250 % = 1 200 = Mk.6; Mk.3 normal at 250 % = 600 → Mk.5 |

- Belt capacity is the hard cap: miners only produce as fast as the belt takes items away.
- Smelter saturation: Mk.1 belt (60 ore) = 2 Smelters; Mk.2 (120) = 4; Mk.3 (270) = 9; Mk.4 (480) = 16; Mk.5 (780) = 26; Mk.6 (1 200) = 40 Smelters. Steel: a Mk.3 belt supplies 6 Foundries per input.

## Manifold vs. load balancing

- A **manifold** (chain of splitters with pass-through) distributes evenly after a start-up time as long as total input ≥ total demand; the start-up time is the time to fill the machine buffers (avoid underclocking the last machines).
- **Load balancers** (splitter trees) are only needed when an exact split is required from the first second (e.g. a 1:2 belt split for different consumers).
- Splitters split 1 → 3 evenly; 1 → 2 by blocking one output; uneven (1:2) by feeding one output back through a merger. Details: [Belts & pipes](/guides/belts-pipes#manifold-vs-balancer).

## Overclock and sink rules of thumb

- For whole numbers of buildings prefer underclocking the last machine (no shard) over overclocking the chain; underclocking saves power per item.
- Overclocking miners pays off (shards are finite, but nodes are scarcer): 1 Miner Mk.3 pure at 250 % = 1 200/min replaces 2.5 miners.
- Power per item: 250 % costs 34 % more than 100 % (production buildings); generators are linear.
- Always send surplus into the [AWESOME Sink](/guides/awesome-sink) (overflow output of a Smart Splitter); never let a chain stop. Best points per raw resource: highly processed parts (Computer 8 352, Supercomputer 97 352, Heavy Modular Frame 10 800).


- [Belts & pipes](/guides/belts-pipes)

- [Overclocking](/guides/overclocking)

- [Alternate recipes](/guides/alternate-recipes)

- [All recipes](/wiki/recipes)