Spidertron — Factorio Production Calculator
Spidertron is crafted in the assembling machine in 10 seconds, producing 1 per craft from 4 × Exoskeleton, 2 × Portable fission reactor, 4 × Rocket launcher, 16 × Processing unit, 150 × Low density structure, 2 × Radar, 2 × Efficiency module 3, 1 × Raw fish. At 60 per minute you need 20 assembling machines, and the chain behind it draws on 9 raw resources: petroleum gas, copper ore, iron ore, water, coal, heavy oil, depleted uranium fuel cell, raw fish, uranium 235.
Production chain for 60 Spidertron / minute
| Item | Per minute | Machines | Machine |
|---|---|---|---|
| Copper cable | 2,632,200 | 21,935 | Assembling machine |
| Copper plate | 1,616,100 | 86,192 | Furnace |
| Iron plate | 1,027,956 | 54,824.32 | Furnace |
| Electronic circuit | 779,640 | 12,994 | Assembling machine |
| Plastic bar | 221,640 | 1,847 | Chemical plant |
| Sulfuric acid | 151,800 | 50.6 | Chemical plant |
| Lubricant | 108,000 | 180 | Chemical plant |
| Advanced circuit | 73,320 | 14,664 | Assembling machine |
| Steel plate | 42,000 | 11,200 | Furnace |
| Processing unit | 30,360 | 10,120 | Assembling machine |
| Sulfur | 15,180 | 126.5 | Chemical plant |
| Low density structure | 15,000 | 7,500 | Assembling machine |
| Pipe | 14,400 | 240 | Assembling machine |
| Iron gear wheel | 9,000 | 150 | Assembling machine |
| Electric engine unit | 7,200 | 2,400 | Assembling machine |
| Engine unit | 7,200 | 2,400 | Assembling machine |
| Efficiency module | 1,920 | 960 | Assembling machine |
| Uranium-238 | 912 | 304 | Centrifuge |
| Uranium fuel cell | 480 | 16 | Assembling machine |
| Efficiency module 2 | 480 | 480 | Assembling machine |
| Exoskeleton | 240 | 80 | Assembling machine |
| Rocket launcher | 240 | 80 | Assembling machine |
| Portable fission reactor | 120 | 40 | Assembling machine |
| Radar | 120 | 2 | Assembling machine |
| Efficiency module 3 | 120 | 240 | Assembling machine |
| Spidertron | 60 | 20 | Assembling machine |
Raw materials
| Resource | Per minute |
|---|---|
| Petroleum gas | 2,444,100 |
| Copper ore | 1,616,100 |
| Iron ore | 1,027,956 |
| Water | 531,300 |
| Coal | 110,820 |
| Heavy oil | 108,000 |
| Depleted uranium fuel cell | 1,520 |
| Raw fish | 60 |
| Uranium 235 | 48 |
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.
Spidertron recipe
| Machine | Crafting time | Output | Ingredients |
|---|---|---|---|
| Assembling machine | 10 s | 1 | Exoskeleton × 4, Portable fission reactor × 2, Rocket launcher × 4, Processing unit × 16, Low density structure × 150, Radar × 2, Efficiency module 3 × 2, Raw fish × 1 |
What the whole chain needs
60 spidertrons per minute pulls in 25 intermediate products, and the whole tree comes to 229,045 machines across 4 machine types, fed by 9 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 2,444,100 per minute, which is 2,715.67 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 spidertron
No base-game recipe consumes spidertron — 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 spidertron is made from
- Exoskeleton — 4 per craft
- Portable fission reactor — 2 per craft
- Rocket launcher — 4 per craft
- Processing unit — 16 per craft
- Low density structure — 150 per craft
- Radar — 2 per craft
- Efficiency module 3 — 2 per craft
FAQ
How many assembling machines do I need for 60 spidertrons 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 spidertron take?
At 60/min the chain consumes 2,444,100 petroleum gas per minute, 1,616,100 copper ore per minute, 1,027,956 iron ore per minute and 6 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.