Refined concrete — Factorio Production Calculator
Refined concrete is crafted in the assembling machine in 15 seconds, producing 10 per craft from 20 × Concrete, 8 × Iron stick, 1 × Steel plate, 100 × Water. At 60 per minute you need 3 assembling machines, and the chain behind it draws on 3 raw resources: water, stone, iron ore.
Production chain for 60 Refined concrete / minute
| Item | Per minute | Machines | Machine |
|---|---|---|---|
| Concrete | 120 | 4 | Assembling machine |
| Refined concrete | 60 | 3 | Assembling machine |
| Stone brick | 60 | 3.2 | Furnace |
| Iron plate | 54 | 2.88 | Furnace |
| Iron stick | 48 | 0.4 | Assembling machine |
| Steel plate | 6 | 1.6 | Furnace |
Raw materials
| Resource | Per minute |
|---|---|
| Water | 1,800 |
| Stone | 120 |
| Iron ore | 66 |
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.
Refined concrete recipe
| Machine | Crafting time | Output | Ingredients |
|---|---|---|---|
| Assembling machine | 15 s | 10 | Concrete × 20, Iron stick × 8, Steel plate × 1, Water × 100 |
What the whole chain needs
60 refined concretes per minute pulls in 5 intermediate products, and the whole tree comes to 15 machines across 2 machine types, fed by 3 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 1,800 per minute, which is 2 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 refined concrete
1 base-game recipe consumes refined concrete, sorted by how much each one takes:
- Refined hazard concrete — 10 per craft
What refined concrete is made from
- Concrete — 20 per craft
- Iron stick — 8 per craft
- Steel plate — 1 per craft
FAQ
How many assembling machines do I need for 60 refined concretes per minute?
3 assembling machines. One at standard speed produces 20 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 refined concrete take?
At 60/min the chain consumes 1,800 water per minute, 120 stone per minute, 66 iron ore per minute. Those numbers are the theoretical minimum — mining productivity research and productivity modules both reduce them.
Is refined concrete needed for science packs?
Not directly. It feeds Refined hazard concrete, 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.