Transport belt capacity (research)
| Transport belt capacity (research) |
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Cost |
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| ✖ 2000 | |
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Prototype type |
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Internal name |
transport-belt-capacity-1 |
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Required technologies |
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Allows |
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Object description
Increases the transport belt stack size by 1, up to 4. Only stack inserters, big mining drills and recyclers can create belt stacks.
Stack inserter research introduces a baseline stack size of 2, doubling the throughput compared to non-stacked belts. There are two levels of transport belt capacity research, each of which increases the stack size by 1.
Transport belt capacity 2 also increases the hand size of non-bulk and non-stack inserters by 1.
| Transport belt capacity 1 | ✖ 2000 |
| Transport belt capacity 2 | ✖ 3000 |
Belt throughput 
Belt stack size allows more items to stack on a belt, therefore increasing maximum belt throughput.
| Belt type | Base rate (stack size 1) | Stack inserter researched (stack size 2) | Belt capacity 1 researched (stack size 3) | Belt capacity 2 researched (stack size 4) |
|---|---|---|---|---|
| Transport belt | 15 items /s | 30 items /s | 45 items /s | 60 items /s |
| Fast transport belt | 30 items /s | 60 items /s | 90 items /s | 120 items /s |
| Express transport belt | 45 items /s | 90 items /s | 135 items /s | 180 items /s |
| Turbo transport belt |
60 items /s | 120 items /s | 180 items /s | 240 items /s |