Fast inserter

Fast inserter is a building-class inserter in Factorio that transfers items between belts, machines, chests and other logistic surfaces. As an inserter-type entity, it functions as a mechanical arm that picks up items from one side and places them on the other, allowing automated material flow and machine feeding within factory setups. Fast inserter requires an electrical connection to operate and integrates with the game's conveyor and electric systems.

Fast inserter interacts with the circuit network for conditional control. It can be connected to the circuit network to read signals or to output its contents and activity, enabling advanced control schemes such as conditional enabling/disabling, throughput regulation, and integration with combinator logic. The game provides GUI elements for configuring inserter behavior in relation to the circuit network and for inspecting inserter status; relevant interface graphics include the inserter circuit network GUI and stack inserter GUI assets.

• Fast inserter belongs to the family of inserters; for general mechanics, usage patterns, and comparisons with other inserter variants, consult the inserter/robot arms documentation.
• Fast inserter must be powered by the electric grid to function and thus depends on the player’s electrical infrastructure.
• Fast inserter works with belts, chests, and machines and forms a core component of automated material handling when combined with the conveyor system.
• The inserter’s behavior and connectivity can be configured via the circuit network GUI to create conditional logistics and to expose inserter state to networked logic.

See the conveyor system and electric system pages for details on belt interactions and power requirements. For broader design strategies, performance differences among inserter types, and advanced automation techniques, refer to the main inserter (robot arms) documentation.