Chemical science pack — Factorio Production Calculator
Chemical science pack is crafted in the assembling machine in 24 seconds, producing 2 per craft from 2 × Engine unit, 3 × Advanced circuit, 1 × Sulfur. At 60 per minute you need 24 assembling machines, and the chain behind it draws on 5 raw resources: petroleum gas, iron ore, copper ore, water, coal.
Production chain for 60 Chemical science pack / minute
| Item | Per minute | Machines | Machine |
|---|---|---|---|
| Copper cable | 900 | 7.5 | Assembling machine |
| Iron plate | 720 | 38.4 | Furnace |
| Copper plate | 450 | 24 | Furnace |
| Electronic circuit | 180 | 3 | Assembling machine |
| Plastic bar | 180 | 1.5 | Chemical plant |
| Pipe | 120 | 2 | Assembling machine |
| Advanced circuit | 90 | 18 | Assembling machine |
| Chemical science pack | 60 | 24 | Assembling machine |
| Engine unit | 60 | 20 | Assembling machine |
| Steel plate | 60 | 16 | Furnace |
| Iron gear wheel | 60 | 1 | Assembling machine |
| Sulfur | 30 | 0.25 | Chemical plant |
Raw materials
| Resource | Per minute |
|---|---|
| Petroleum gas | 2,250 |
| Iron ore | 720 |
| Copper ore | 450 |
| Water | 450 |
| Coal | 90 |
Machine counts are not rounded up. Add a little headroom in game — belt throughput and inserter speed usually mean you want 5-10% more than the exact number.
Chemical science pack recipe
| Machine | Crafting time | Output | Ingredients |
|---|---|---|---|
| Assembling machine | 24 s | 2 | Engine unit × 2, Advanced circuit × 3, Sulfur × 1 |
What the whole chain needs
60 chemical science packs per minute pulls in 11 intermediate products, and the whole tree comes to 156 machines across 3 machine types, fed by 5 raw resources. The table above already sums demand across every branch — if copper cable is used by two recipes, you see the total, not one of them.
Belt check: the busiest input here moves 2,250 per minute, which is 2.5 of a yellow belt's 900 per minute. Above 1.0 and you need a second belt (or a faster tier) before the machines themselves become the limit.
What uses chemical science pack
No base-game recipe consumes chemical science pack — it is an end product. Once you build it, the chain stops here, which makes it a good target if you only want to size the sub-factory that feeds your mall.
What chemical science pack is made from
- Engine unit — 2 per craft
- Advanced circuit — 3 per craft
- Sulfur — 1 per craft
FAQ
How many assembling machines do I need for 60 chemical science packs per minute?
24 assembling machines. One at standard speed produces 2.5 per minute, so 60 ÷ that number is the count. The calculator above rounds nothing — add 5-10% headroom for belt and inserter losses in a real factory.
How much raw ore does chemical science pack take?
At 60/min the chain consumes 2,250 petroleum gas per minute, 720 iron ore per minute, 450 copper ore per minute and 2 more. Those numbers are the theoretical minimum — mining productivity research and productivity modules both reduce them.
Machine counts assume bare machines at standard speed. Recipe data comes from the game's own prototypes (PlayerCalc, Factorio 2.0 base game). Not affiliated with Wube Software.