Rocket launcher — Factorio Production Calculator
Rocket launcher is crafted in the assembling machine in 10 seconds, producing 1 per craft from 5 × Iron plate, 5 × Iron gear wheel, 5 × Electronic circuit. At 60 per minute you need 20 assembling machines, and the chain behind it draws on 2 raw resources: iron ore, copper ore.
Production chain for 60 Rocket launcher / minute
| Item | Per minute | Machines | Machine |
|---|---|---|---|
| Iron plate | 1,200 | 64 | Furnace |
| Copper cable | 900 | 7.5 | Assembling machine |
| Copper plate | 450 | 24 | Furnace |
| Iron gear wheel | 300 | 5 | Assembling machine |
| Electronic circuit | 300 | 5 | Assembling machine |
| Rocket launcher | 60 | 20 | Assembling machine |
Raw materials
| Resource | Per minute |
|---|---|
| Iron ore | 1,200 |
| Copper ore | 450 |
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.
Rocket launcher recipe
| Machine | Crafting time | Output | Ingredients |
|---|---|---|---|
| Assembling machine | 10 s | 1 | Iron plate × 5, Iron gear wheel × 5, Electronic circuit × 5 |
What the whole chain needs
60 rocket launchers per minute pulls in 5 intermediate products, and the whole tree comes to 126 machines across 2 machine types, fed by 2 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 1,200 per minute, which is 1.33 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 rocket launcher
1 base-game recipe consumes rocket launcher, sorted by how much each one takes:
- Spidertron — 4 per craft
What rocket launcher is made from
- Iron plate — 5 per craft
- Iron gear wheel — 5 per craft
- Electronic circuit — 5 per craft
FAQ
How many assembling machines do I need for 60 rocket launchers per minute?
20 assembling machines. One at standard speed produces 3 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 rocket launcher take?
At 60/min the chain consumes 1,200 iron ore per minute, 450 copper ore per minute. Those numbers are the theoretical minimum — mining productivity research and productivity modules both reduce them.
Is rocket launcher needed for science packs?
Not directly. It feeds Spidertron, and those in turn feed the science packs. Open the science pack page to see the demand that lands on this recipe.
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.