| Recipe
 | 
| + 2+ 40→ 2 2 | 
| Total raw
 | 
| + 25.5 97.5 | 
| Map color
 |  | 
| Health
 |  | 
| Resistances
 | Fire: 0/60%Impact: 0/30%
 | 
| Stack size
 | 50
 | 
|  Rocket capacity
 | 50
 | 
| Dimensions
 | 1×1
 | 
| Belt speed
 | 30 Items/s
 | 
| Mining time
 | 0.1
 | 
| Prototype type
 | underground-belt
 | 
| Internal name
 | fast-underground-belt
 | 
| Required technologies
 | 
|  2 | 
| Produced by
 | 
|  | 
| Consumed by
 | 
|  | 
| Recipe
 | 
| + 2+ 40→ 2 2 | 
| Total raw
 | 
| + 25.5 97.5 | 
| Map color
 |  | 
| Health
 |  | 
| Resistances
 | Fire: 0/60%Impact: 0/30%
 | 
| Stack size
 | 50
 | 
|  Rocket capacity
 | 50
 | 
| Dimensions
 | 1×1
 | 
| Belt speed
 | 30 Items/s
 | 
| Mining time
 | 0.1
 | 
| Prototype type
 | underground-belt
 | 
| Internal name
 | fast-underground-belt
 | 
| Required technologies
 | 
|  2 | 
| Produced by
 | 
|  | 
| Consumed by
 | 
|  | 
 
The fast underground belt is the second tier of underground belts. It has a maximum underground distance of 6 tiles — 2 more than the basic underground belt. The speed of the fast underground belt is the same speed as the fast transport belt, which is twice as fast as a basic transport belt or underground belt.
Other fast belts
History
- 0.17.0: 
- New graphics for underground belts
 
- 0.15.7: 
- Increased the underground belt length (basic, fast, express) from 5,5,5 to 5,7,9.
 
- 0.13.0: 
- Underground belts won't connect if underground belt ghost is in the way.
 
See also