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''For the common yellow electrical inserter, see [[Inserter]].''
''For the common yellow electrical inserter, see [[Inserter]].''


'''Inserters''' are devices which are used to move items over short distances. When placed, they have a fixed direction. They can move items from behind and place them in front of them. By doing this, they can move items from one transport belt to another, but also extract items from, and insert items into machines or storage devices. There are seven types of inserters, all requiring electricity to run (except the Burner Inserter, which burns [[Fuel|fuel]]).
'''Inserters''' are devices which are used to move items over short distances. When placed, they have a fixed direction. They can move items from behind and place them in front of them. By doing this, they can move items from one transport belt to another, but also extract items from—and insert items into—machines or storage devices.


== Types of inserters ==
== Types of inserters ==


* [[Burner inserter]] - The only [[fuel]]-powered inserter.
{| class="wikitable"
* [[Inserter]] - The standard yellow electrical inserter.
| {{Imagelink|Burner inserter}} || The only [[fuel]]-powered inserter, with the slowest speed.
* [[Fast inserter]] - The much faster blue inserter.
|-
* [[Long handed inserter]] - Capable of inserting and removing from a greater range.
| {{Imagelink|Inserter}} || The standard electrical inserter.
* [[Filter inserter]] - Purple inserter used for filtering.
|-
* [[Stack inserter]] - New inserter available with V0.13, allows much greater throughput.
| {{Imagelink|Long-handed inserter}} || Capable of inserting and removing items from a greater distance.
* [[Stack filter inserter]] - A filtered version of the Stack inserter.
|-
 
| {{Imagelink|Fast inserter}} || Much faster than the inserter.
|-
| {{Imagelink|Filter inserter}} || Variant of the fast inserter that can filter items by type.
|-
| {{Imagelink|Stack inserter}} || As fast as the fast inserter, but can move many more items at the same time at once.  
|-
| {{imagelink|Stack filter inserter}} || Variant of the stack inserter that can filter items by type.
|-
|}


==Mechanics==
==Mechanics==
Inserters '''will''':
Inserters '''will''':
* '''Pick up''' [[Items]] off the ground, off of a [[Transport belts|Transport belt]], or from any object that has storage space, including [[Storages/Chests|chests]], [[furnace]]s and [[assembling machine]]s.
* Pick up items off the ground, off of a [[Transport belts|transport belt]], or from any object that has storage space, including [[Chests|chests]], [[furnace]]s and [[assembling machine]]s.
* '''Place''' the item onto the ground, onto a transport belt, or into any object that has storage space.
* Place the item onto the ground, onto a transport belt, or into any object that has storage space.
* Inserters can place items on all types of conveyor belts.
* Run at slower speeds when starved for energy.
* Try to pick up items from all types of belts (as of v0.12 there is no limitation anymore).
* Pick up as many items as their [[inserter capacity bonus (research)|stack size]] allows at once, if they do not have to wait too long to pick them up.
* Inserters will run at slower speeds when starved for energy.


Inserters will '''not''':
Inserters '''will not''':
* Insert items into an entity with a full inventory.
* Pick up any items that can not be inserted into the adjacent entity.
* Pick up any items if the adjacent entity is a blueprint.
* Pick up items to place into an entity with a full inventory.
* Place more than one item at a time onto the same ground tile.
* Place more than one item at a time onto the same ground tile.
* Place items into a stack limited inventory, beyond the stack limit (red slots).
* Place items into an entity that can not hold them, for example due to [[Stack#Filtered_stacks|filtered]] or [[Stack#Stack_limitation|limited slots]].
* Fill up the entire target inventory of [[boiler]]s, [[nuclear reactor]]s, [[:Category:Producers|production building]]s, [[furnace]]s, and [[turret]]s.


If two or more inserters are picking up from the same tile, the inserter who can grab the items the fastest will grab them first. Besides faster inserters, this favors inserters taking from the inner lane of a transport belt.


Inserters act differently depending on what they are moving items to/into so as not to monopolize all of the items being picked up. This allows other machines and inserters on the same transport belt to pick up a share of the items. If two inserters are picking up from the same tile, the first placed inserter has priority.
=== Insertion limits ===
 
Depending on where an inserter is moving items, it does not always fill up the entire target inventory. This allows other inserters taking from the same transport belt to pick up their share of the items. For example, if a boiler has 5 or more items of fuel in it, an inserter will not insert additional fuel. This allows the other fuel to travel further down the transport belt. When the fuel drops below 5 items, the inserter will resume inserting fuel, up to the limit of 5 items.
 
==Insertion limits==
Inserters will stop inserting items into certain buildings if they already have enough of that item. For example, if a boiler has 5 or more items of fuel in it, an inserter will not insert additional fuel. When the fuel drops below 5 items, the inserter will continue to insert more fuel, up to the limit of 5 items.
 
This is to allow for all machines to receive their share of items. The common limits on insertion are shown in the table below.


{| class="wikitable"
{| class="wikitable"
! Entity !! Item type !! Inserter limit !! Comment
! Entity !! Item type !! Automatic insertion limit
|-
|-
| [[Boiler]]s, [[Burner inserter]]s, [[Furnace]]s || [[Fuel]] || align="center" | 5 ||
| [[Boiler]]s, [[burner inserter]]s, [[furnace]]s, and [[nuclear reactor]]s || [[Fuel]] || align="center" | 5
|-
|-
| [[Gun turret]]s || Bullet Magazines || align="center" | 10 || Since v0.8.4. Allows for 100 shots before depleting.
| [[Gun turret]]s || Bullet Magazines || align="center" | 10
|-
|-
| [[Assembling machine]]s || Items needed for the recipe || Double the number of items needed in the recipe ||
| [[Artillery turret]]s || [[Artillery shell]]s || align="center" | 5
|-
|-
| [[Furnace]]s || Items needed for the recipe || Double the number of items needed in the recipe ||
| [[Assembling machine]]s, [[furnace]]s, [[centrifuge]]s, [[chemical plant]]s, and [[Oil refinery|oil refineries]]|| Items needed for the recipe || The ingredients for 1 craft in addition to the ingredients for the number of crafts that can complete during one full inserter swing; but at least the ingredients for 2 crafts and at most the ingredients for 100 crafts.[https://forums.factorio.com/viewtopic.php?p=309796#p309796]
|-
|-
| [[Lab]]s || [[Science pack]]s || Double the number of items needed for one research point ||
| [[Lab]]s || [[Science pack]]s || Double the number of science packs needed for one research unit.
|}
|}


An inserter that takes items from an object containing [[Storage/Stack|stacks]] of items (such as a chest) can overfill the target building due to the [[Inserter item stack size bonus]] research. Overfilling can also happen if  multiple inserters are used to insert items into one building.
An inserter that has a higher [[inserter capacity bonus (research)|inserter capacity bonus]] than 1 can overfill the target building, due to the inserter picking up a higher amount of items than needed. Overfilling can also occur if  multiple inserters are used to insert items into one building.


==Inserters and transport belt interaction ==
=== Inserters and transport belts ===
[[Transport belts]] have two lanes on which items can travel. Inserters only place items onto one side of the belt. Which side they place it on depends on the orientation of the inserter and the belt, as described below.
[[Transport belts]] have two lanes on which items can travel. Inserters only place items onto one side of the belt, either the far side from the inserter's perspective or if the belt is going the same or the opposite direction as the inserter the right side from the belt's perspective.
 
: [[File:PlaceOnFarSide.gif|left]]
* Inserters will '''always''' place the item on the furthest lane.
{{clear}}
: [[File:TakeFromNearSide.gif|left]]
* Inserters '''prefer''' taking items from the nearest lane. If the nearest lane is empty, the inserter will take from the far lane.
{{clear}}
: [[File:PlaceOnRightSide.gif|left]]
* If a belt is in the same orientation as the inserter, the item will be placed on the right-hand lane, from the belt's perspective.
{{clear}}
: [[File:PlaceOnInsideOfCorner.gif|left]]
* If the item is placed on a corner piece, it will be put on the inside of the curve, regardless of orientation.
{{clear}}


{|
| style="width:320px;" | [[File:Inserter_dropoff_locations.gif]] || [[File:Inserter_pickup_locations.gif]]
|-
| style="width:320px;" | Inserters place the item on the furthest lane. If a belt is in the same orientation as the inserter, the item will be placed on the right-hand lane, from the belt's perspective. In curves the inserter always places on the far side.
| style="width:320px;" | If the belt is perpendicular to the inserter, inserters '''prefer''' taking items from the nearest lane. If the nearest lane is empty, the inserter will take from the far lane. If the belt is the same/opposite orientation of the inserter or a curve, the inserter '''prefers''' taking from the left lane, from the belt's perspective. If the left lane is empty it will take from the right lane.
|}


== Potential issues ==
=== Potential issues ===
Inserters may have problems picking up items:
Inserters may have problems picking up items:


* From very fast belts, because the items are moving too quickly. ([[Inserter|basic inserters]] cannot pick up from [[express transport belt]] for example)
* From very fast belts, because the items are moving too quickly.
* From the entry or exit of an underground belt (because the time they have to pick up is shorter)
* From the entry or exit of an underground belt (because the time they have to pick up is shorter)
* From turning belts if the item is on the inside of the corner


==Inserter Item Stack Size Bonus==
== Power usage ==
* Electric inserters drain energy even when they are not moving, as idle power
* The amount of energy used is the same for every turn
* The [[burner inserter]] does not drain energy when idle, but uses more energy when it is active.


If an inserter moves items from inventory to inventory (for example from an assembler into a chest), or (as of v0.13) from an inventory to a belt, it is able to transport more items at once. The secret behind this is the [[Inserter item stack size bonus]] research.
== Inserter speed ==
[[File:all_inserter_speeds.gif|frame|right|Animation showing all inserter speeds at once.]]
{| class="wikitable"
! Type
! Rotation-speed (turns per [[Time#Ticks|tick]])<br/>Extension-speed ([[Map_structure#Tile|Tiles]] per Tick)
! Turns per [[Time#Seconds|Game-second]]
! Game-second per full turn
! Ticks per full turn
|- align="center"
| align="left"| {{Imagelink|Burner inserter}} || 0.01<br/>0.0214 || 0.60 || 1.667 || 100
|- align="center"
| align="left"| {{Imagelink|Inserter}} || 0.014<br/>0.03 || 0.83 || 1.2 || 72
|- align="center"
| align="left"| {{Imagelink|Long-handed inserter}} || 0.02<br/>0.0457 || 1.2 || 0.833 || 50
|- align="center"
| align="left"| {{Imagelink|Fast inserter}}<br/>{{Imagelink|Filter inserter}}<br/>{{Imagelink|Stack inserter}}<br/>{{imagelink|Stack filter inserter}} || 0.04<br/>0.07 || 2.31 || 0.433 || 26
|-
|}


==Power usage==
'''Note:''' These numbers come directly from the [https://github.com/wube/factorio-data/tree/master/base/prototypes/entity factorio-data github repository].
* Electric inserters drain energy even when they are not moving, as idle power
 
* The amount of energy used is the same for every movement
===Rotation Speed===
* The [[Burner inserter]] does not drain energy when idle, but uses more energy when it is active. It is quite useful for situations where the inserter does not need to move very often.
Convention: 2π rad = 100% of a circle rotation = '''1 turn''' (or one full rotation).
 
Note: an Inserter doesn't always need to make full turns. When grabbing from a transport belt, it is slightly faster when grabbing items from the closest lane.
 
===Extension Speed===
The extension-speed is normally not visible (only when compared to other inserters), but there are measurable speed differences when taking - for example - from the near or the far side of a belt. Also Some mods can alter the pickup and drop locations of inserters, making this stat more relevant.
 
==Inserter Throughput==
 
The following is based on experimental data from [https://docs.google.com/spreadsheets/d/1Q4hxL69qrK3qeEKU8aDkuwM3gJy6I2dJ4FYSs-FQUpI/edit?usp=sharing 0.18].   
Most of the 0.18 experimental data was gathered using the following circuit blueprint to measure the exact tick difference between inserter swings. A lot of the data on this page (specifically the belt to chest data) relies heavily on the conditions of the setup on which the measurements are done. If your setup differs from the ones tested on this page, you can use the following blueprint to do the measurements yourself.
 
{{BlueprintString|bp-string=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}}
 
===Chest to chest===
 
'''Note:''' Experimental data from 0.18
 
{| class="wikitable"
! rowspan=2 | Type
! rowspan=2 | Arm cycles per second
! colspan=6 | Items/second at [[inserter capacity bonus (research)|capacity bonus]] level (stack size)
|-
! colspan=2 | No capacity bonus
! colspan=2 | Capacity bonus 2
! colspan=2 | Capacity bonus 7
|- align="center"
| align="left"| {{Imagelink|Burner inserter}} || 0.60 || 0.60 || (1) || 1.20 || (2) || 1.80 || (3)
|- align="center"
| align="left"| {{Imagelink|Inserter}} || 0.83 || 0.83 || (1) || 1.67 || (2) || 2.50 || (3)
|- align="center"
| align="left"| {{Imagelink|Long-handed inserter}} || 1.20 || 1.20 || (1) || 2.40 || (2) || 3.60 || (3)
|- align="center"
| align="left"| {{Imagelink|Fast inserter}}<br/>{{Imagelink|Filter inserter}} || 2.31 || 2.31 || (1) || 4.62 || (2) || 6.92 || (3)
|- align="center"
| align="left"| {{Imagelink|Stack inserter}}<br/>{{imagelink|Stack filter inserter}} || 2.31 || 4.62 || (2) || 9.23 || (4) || 27.69 || (12)
|-
|}
 
===Chest to belt===


Throughput going from chest to belt depends on how full the belt is. An inserter will not put down an item on a belt that have items back-to-back (aka full compression) - it waits until there is a gap. However, if the gap is narrower than the item then the items upstream on the belt will stop to make room for the item being inserted. The direction of the belt compared to the inserter does not matter however.


==Inserter speed==
In these measurements inserters move items onto an empty belt. Values are given for the stack sizes at three different [[inserter capacity bonus (research)|capacity bonus]] levels.


<span style="color:#FF0000">'''MAINTAINER NOTE: The below info (up to [[Inserters#Rotation_speed|Rotation speed]]) has not been updated to reflect v0.13. Values will likely not be correct, and must be re-tested.''' </span>
'''Note:''' Experimental data from 0.18


{| class="wikitable"
{| class="wikitable"
! Type
! rowspan=3 | Type
! Rotation-speed (turns per [[Tick]])<br/>Extension-speed ([[Tile]]s per Tick)
! colspan=12 | Items/second at [[inserter capacity bonus (research)|capacity bonus]] level (stack size)
! Turns per [[Game-second]]<br/>Tiles per Game-second
|-
! Game-second per full turn<br/>Game-seconds per Tile
! colspan=4 | No capacity bonus
! colspan=4 | Capacity bonus 2
! colspan=4 | Capacity bonus 7
|-
! [[File:Transport belt.png|link=Transport belt|32px]] || [[File:Fast transport belt.png|link=Fast transport belt|32px]] || [[File:Express transport belt.png|link=Express transport belt|32px]] ||
! [[File:Transport belt.png|link=Transport belt|32px]] || [[File:Fast transport belt.png|link=Fast transport belt|32px]] || [[File:Express transport belt.png|link=Express transport belt|32px]] ||
! [[File:Transport belt.png|link=Transport belt|32px]] || [[File:Fast transport belt.png|link=Fast transport belt|32px]] || [[File:Express transport belt.png|link=Express transport belt|32px]] ||
|- align="center"
|- align="center"
| align="left"| {{imagelink|burner-inserter|Burner inserter}} || 0.01<br/>0.02 || 0.6<br/>1.2 || 1.667<br/>0.833
| align="left"| {{Imagelink|Burner inserter}} || 0.60 || 0.60 || 0.60 || (1) || 1.19 || 1.19 || 1.19 || (2) || 1.67 || 1.73 || 1.76 || (3)
|- align="center"
|- align="center"
| align="left"| {{imagelink|basic-inserter|Basic inserter}} || 0.014<br/>0.03 || 0.84<br/>1.8 || 1.191<br/>0.56
| align="left"| {{Imagelink|Inserter}} || 0.83 || 0.83 || 0.83 || (1) || 1.64 || 1.64 || 1.64 || (2) || 2.25 || 2.37 || 2.43 || (3)
|- align="center"
|- align="center"
| align="left"| {{imagelink|long-handed-inserter|Long handed inserter}} || 0.02<br/>0.04 || 1.2<br/>2.4 || 0.833<br/>0.416
| align="left"| {{Imagelink|Long-handed inserter}} || 1.20 || 1.20 || 1.20 || (1) || 2.35 || 2.35 || 2.35 || (2) || 3.10 || 3.33 || 3.46 || (3)
|- align="center"
|- align="center"
| align="left"| {{imagelink|fast-inserter|Fast inserter}} || 0.04<br/>0.07 || 2.4<br/>4.2 || 0.417<br/>0.238
| align="left"| {{Imagelink|Fast inserter}}<br/>{{Imagelink|Filter inserter}} || 2.31 || 2.31 || 2.31 || (1) || 4.44 || 4.44 || 4.44 || (2) || 5.29 || 6.00 || 6.43 || (3)
|- align="center"
|- align="center"
| align="left"| {{imagelink|smart-inserter|Smart inserter}} || 0.04<br/>0.07 || 2.4<br/>4.2 || 0.417<br/>0.238
| align="left"| {{Imagelink|Stack inserter}}<br/>{{imagelink|Stack filter inserter}} || 4.44 || 4.44 || 4.44 || (2) || 5.71 || 7.06 || 7.74 || (4) || 6.79 || 10.91 || 13.85 || (12)
|-
|-
|}
|}


===Rotation speed===
===Chest to splitter===
Convention: 2π rad = 100% of a circle rotation = '''1 turn''' (or one full rotation).


Note: an Inserter doesn't always need to make full turns. When grabbing from a transport belt, it is slightly faster when grabbing items from the closest lane.
When an inserter drops items onto the side of a perpendicular splitter, it always is considered to do so on the input side, enabling the splitter to move half of the items to the other belt (assuming that the splitter filter/priority settings allow it to do so and that there is available space on both belts). This allows the inserter to drop its items twice as fast. A fully upgraded stack inserter can drop twelve items onto an express splitter every 38 ticks (18.95 items/second) instead of the usual 52.


===Extension speed===
[[File:Inserter to splitter comparison.png|621px|thumb|center|By inserting onto the side of a splitter, a fully-upgraded stack inserter can fill 84% of an express belt lane instead of the usual 62%.]]
The extension-speed is normally not visible (only when compared to other inserters), but there are measurable speed differences when taking - for example - from the near or the far side of a belt.


This effect is also important for [[Railway network/Train station|Train stations]], when unloading items from wagons, because the inserter needs to stretch out to the center of a wagon, which is some tiles long and leads to visible slower speed.
===Belt to chest (perpendicular)===


The extension speed is especially important for [http://www.factorioforums.com/forum/viewtopic.php?f=8&t=9244 train unloading].
'''Note:''' Experimental data from 0.18


==Inserter throughput==
When picking items from a belt, many more factors come into play besides belt fullness:


<span style="color:#FF0000">'''MAINTAINER NOTE: The below info (up to [[Inserters#See_also|See also]]) has not been updated to reflect v0.13. Values may not be correct, and should be re-tested.''' </span>
* How fast the items move (i.e. if they are queued up on the belt or move at belt speed).
* Whether the belt is perpendicular to the inserter or approaches it head on.
* Whether items are on the near or far lane of a perpendicular belt.
* Whether the belt turns or not, and whether the items are in the inner or outer side of the bend.
* If the belt is an underground entrance or exit. This shortens the time items are visible to the inserter for pickup.
* All sorts of intricate timing factors between the inserter and the items on the belt, since the game simulates the arm homing in on every item.


For an inserter removing items from a chest and placing them on a straight, empty belt ([https://forums.factorio.com/viewtopic.php?f=18&t=23409 experimentally measured to ±0.004], valid at least thru 0.12.33):
The test setup used below is with an inserter taking items from a perpendicular belt with items on the far lane only. The belt is fully compressed and timings are both for items that move at full speed and queued up as much as possible. Values are given for the stack sizes at three different [[inserter capacity bonus (research)|capacity bonus]] levels.


{| class="wikitable"
{| class="wikitable"
! Type
! rowspan=4 | Type
! Items per [[Game-second]]<br/>Inserter facing East/West/South
! colspan=15 | Items/second at [[inserter capacity bonus (research)|capacity bonus]] level (stack size)
! Items per Game-second<br/>Inserter facing North
|-
! colspan=5 | No capacity bonus
! colspan=5 | Capacity bonus 2
! colspan=5 | Capacity bonus 7
|-
! colspan=3 | Items at<br/>belt speed
! rowspan=2 | Items<br/>queued<br/>up
! rowspan=2 |
! colspan=3 | Items at<br/>belt speed
! rowspan=2 | Items<br/>queued<br/>up
! rowspan=2 |
! colspan=3 | Items at<br/>belt speed
! rowspan=2 | Items<br/>queued<br/>up
! rowspan=2 |
|-
! [[File:Transport belt.png|link=Transport belt|32px]] || [[File:Fast transport belt.png|link=Fast transport belt|32px]] || [[File:Express transport belt.png|link=Express transport belt|32px]]
! [[File:Transport belt.png|link=Transport belt|32px]] || [[File:Fast transport belt.png|link=Fast transport belt|32px]] || [[File:Express transport belt.png|link=Express transport belt|32px]]
! [[File:Transport belt.png|link=Transport belt|32px]] || [[File:Fast transport belt.png|link=Fast transport belt|32px]] || [[File:Express transport belt.png|link=Express transport belt|32px]]
|- align="center"
|- align="center"
| align="left"| {{imagelink|burner-inserter|Burner inserter}} || 0.588 || 0.579
| align="left"| {{Imagelink|Burner inserter}} || 0.60 || '''0.65''' || 0.50 || 0.64 || (1) || 1.11 || '''1.20''' || 1.13 || 1.26 || (2) || 1.61 || 1.61 || '''1.65''' || 1.71 /<br/>1.73 /<br/>1.86 * || (3)
|- align="center"
|- align="center"
| align="left"| {{imagelink|basic-inserter|Basic inserter}} || 0.831 || 0.820
| align="left"| {{Imagelink|Inserter}} || '''0.94''' || '''0.94''' || '''0.94''' || 0.88 || (1) || '''1.67''' || '''1.67''' || 1.50 || 1.74 || (2) || '''2.50''' || 2.25 || 2.33 || 2.37 /<br/>2.37 /<br/>2.54 * || (3)
|- align="center"
|- align="center"
| align="left"| {{imagelink|long-handed-inserter|Long handed inserter}} || 1.153 || 1.129
| align="left"| {{Imagelink|Long-handed inserter}} || 1.18 || 1.18 || '''1.25''' || 1.20 || (1) || 2.20 || 2.31 || '''2.40''' || 2.40 || (2) || 3.21 || 3.21 || '''3.46''' || 3.40 || (3)
|- align="center"
|- align="center"
| align="left"| {{imagelink|fast-inserter|Fast inserter}} || 2.306 || 2.220
| align="left"| {{Imagelink|Fast inserter}}<br/>{{Imagelink|Filter inserter}} || '''2.50''' || 2.31 || '''2.50''' || 2.50 || (1) || 4.50 || 4.29 || '''5.00''' || 4.80 || (2) || '''6.43''' || 6.00 || '''6.43''' || 6.43 || (3)
|- align="center"
|- align="center"
| align="left"| {{imagelink|smart-inserter|Smart inserter}} || 2.306 || 2.220
| align="left"| {{Imagelink|Stack inserter}}<br/>{{imagelink|Stack filter inserter}} || 4.50 || 4.29 || '''5.00''' || 4.80 || (2) || 7.50 || 7.50 || '''8.00''' || 7.50 /<br/>8.57 /<br/>8.28 * || (4) || 7.50 || 11.25 || '''15.00''' || 7.50 /<br/>13.09 /<br/>15.32 * || (12)
|-
|-
|}
|}


Actual rates may vary for different types of transfers (see also the note about inserter paths in the inserter speed section above).
<nowiki>*)</nowiki> Throughput for basic/fast/express belt.
 
Since there are many more factors involved, these measurements exhibit a more complex pattern than chest-to-belt.
 
* Boldface cells show for which belt each inserter has the best throughput on each bonus level when items move at belt speed. Higher speed belts mean that inserters have to work harder to catch the fast moving items. The effect is most noticeable for slower inserters and smaller stack sizes.
* When items are queued up the belt type hardly matters, so there is only a single column for that. The exceptions are the stack inserters - for basic transport belts it's the belt that sets the limit for stack sizes above 4, and there is also a notable difference between fast and express belts.


=== Belt to Chest (facing inserter) ===


==See also==
'''Note:''' Experimental data from 0.18
* [[Electric network]]
* [[Transport network]]
* [http://www.factorioforums.com/forum/viewtopic.php?f=5&t=5253 Inserter Power Efficiency]: Movements per energy and exact power usage numbers. See also [http://www.factorioforums.com/forum/viewtopic.php?f=5&t=6258 this thread], where energy per movement is explained.
* [http://www.factorioforums.com/forum/viewtopic.php?f=5&t=5400 Small Inserter Test]: Comparison if energy usage per item.
* [http://www.factorioforums.com/forum/viewtopic.php?f=5&t=5524 Inserter heartbeats]: In some situations it is not possible to calculate the needed power usage.
===Special behavior===
* [[Inserters/Interaction with other Entities]]
* [[Inserter item stack size bonus]]: Inserter moves more than an item per turn.
* [http://www.factorioforums.com/forum/viewtopic.php?f=6&t=2640 Pick up only if everything else is full]
* [[Inserter experiments]]
* [http://www.factorioforums.com/forum/viewtopic.php?f=5&t=1929#p13876|| Use inserters instead of belts]


When picking up items from a belt facing the inserter, there are multiple small differences between different setups. The following throughput tests are performed with [[express transport belt]]s and [[stack inserter]]s with the maximum [[inserter capacity bonus (research)|capacity bonus]].
Each setup in the following picture shows the amount of ticks per cycle of the inserter and the amount of items per second the inserter moves. These measurements are consistent in all orientations of the setup.


[[File:Inserter_belt_to_chest_throughput.png|900px]]


{{MachineNav}}
==See Also==
* [[Electric system]]
* [[Belt transport system]]
* [[Inserter capacity bonus (research)]]: Inserter moves more than an item per turn.


[[Category:Items]]
{{C|Inserters}}
[[Category:Transport network]]
[[Category:Circuit network]]

Latest revision as of 20:44, 17 January 2023

For the common yellow electrical inserter, see Inserter.

Inserters are devices which are used to move items over short distances. When placed, they have a fixed direction. They can move items from behind and place them in front of them. By doing this, they can move items from one transport belt to another, but also extract items from—and insert items into—machines or storage devices.

Types of inserters

Burner inserter.png
Burner inserter
The only fuel-powered inserter, with the slowest speed.
Inserter.png
Inserter
The standard electrical inserter.
Long-handed inserter.png
Long-handed inserter
Capable of inserting and removing items from a greater distance.
Fast inserter.png
Fast inserter
Much faster than the inserter.
Filter inserter.png
Filter inserter
Variant of the fast inserter that can filter items by type.
Stack inserter.png
Stack inserter
As fast as the fast inserter, but can move many more items at the same time at once.
Stack filter inserter.png
Stack filter inserter
Variant of the stack inserter that can filter items by type.

Mechanics

Inserters will:

  • Pick up items off the ground, off of a transport belt, or from any object that has storage space, including chests, furnaces and assembling machines.
  • Place the item onto the ground, onto a transport belt, or into any object that has storage space.
  • Run at slower speeds when starved for energy.
  • Pick up as many items as their stack size allows at once, if they do not have to wait too long to pick them up.

Inserters will not:

  • Pick up any items that can not be inserted into the adjacent entity.
  • Pick up any items if the adjacent entity is a blueprint.
  • Pick up items to place into an entity with a full inventory.
  • Place more than one item at a time onto the same ground tile.
  • Place items into an entity that can not hold them, for example due to filtered or limited slots.
  • Fill up the entire target inventory of boilers, nuclear reactors, production buildings, furnaces, and turrets.

If two or more inserters are picking up from the same tile, the inserter who can grab the items the fastest will grab them first. Besides faster inserters, this favors inserters taking from the inner lane of a transport belt.

Insertion limits

Depending on where an inserter is moving items, it does not always fill up the entire target inventory. This allows other inserters taking from the same transport belt to pick up their share of the items. For example, if a boiler has 5 or more items of fuel in it, an inserter will not insert additional fuel. This allows the other fuel to travel further down the transport belt. When the fuel drops below 5 items, the inserter will resume inserting fuel, up to the limit of 5 items.

Entity Item type Automatic insertion limit
Boilers, burner inserters, furnaces, and nuclear reactors Fuel 5
Gun turrets Bullet Magazines 10
Artillery turrets Artillery shells 5
Assembling machines, furnaces, centrifuges, chemical plants, and oil refineries Items needed for the recipe The ingredients for 1 craft in addition to the ingredients for the number of crafts that can complete during one full inserter swing; but at least the ingredients for 2 crafts and at most the ingredients for 100 crafts.[1]
Labs Science packs Double the number of science packs needed for one research unit.

An inserter that has a higher inserter capacity bonus than 1 can overfill the target building, due to the inserter picking up a higher amount of items than needed. Overfilling can also occur if multiple inserters are used to insert items into one building.

Inserters and transport belts

Transport belts have two lanes on which items can travel. Inserters only place items onto one side of the belt, either the far side from the inserter's perspective or if the belt is going the same or the opposite direction as the inserter the right side from the belt's perspective.

Inserter dropoff locations.gif Inserter pickup locations.gif
Inserters place the item on the furthest lane. If a belt is in the same orientation as the inserter, the item will be placed on the right-hand lane, from the belt's perspective. In curves the inserter always places on the far side. If the belt is perpendicular to the inserter, inserters prefer taking items from the nearest lane. If the nearest lane is empty, the inserter will take from the far lane. If the belt is the same/opposite orientation of the inserter or a curve, the inserter prefers taking from the left lane, from the belt's perspective. If the left lane is empty it will take from the right lane.

Potential issues

Inserters may have problems picking up items:

  • From very fast belts, because the items are moving too quickly.
  • From the entry or exit of an underground belt (because the time they have to pick up is shorter)
  • From turning belts if the item is on the inside of the corner

Power usage

  • Electric inserters drain energy even when they are not moving, as idle power
  • The amount of energy used is the same for every turn
  • The burner inserter does not drain energy when idle, but uses more energy when it is active.

Inserter speed

Animation showing all inserter speeds at once.
Type Rotation-speed (turns per tick)
Extension-speed (Tiles per Tick)
Turns per Game-second Game-second per full turn Ticks per full turn
Burner inserter.png
Burner inserter
0.01
0.0214
0.60 1.667 100
Inserter.png
Inserter
0.014
0.03
0.83 1.2 72
Long-handed inserter.png
Long-handed inserter
0.02
0.0457
1.2 0.833 50
Fast inserter.png
Fast inserter
Filter inserter.png
Filter inserter
Stack inserter.png
Stack inserter
Stack filter inserter.png
Stack filter inserter
0.04
0.07
2.31 0.433 26

Note: These numbers come directly from the factorio-data github repository.

Rotation Speed

Convention: 2π rad = 100% of a circle rotation = 1 turn (or one full rotation).

Note: an Inserter doesn't always need to make full turns. When grabbing from a transport belt, it is slightly faster when grabbing items from the closest lane.

Extension Speed

The extension-speed is normally not visible (only when compared to other inserters), but there are measurable speed differences when taking - for example - from the near or the far side of a belt. Also Some mods can alter the pickup and drop locations of inserters, making this stat more relevant.

Inserter Throughput

The following is based on experimental data from 0.18. Most of the 0.18 experimental data was gathered using the following circuit blueprint to measure the exact tick difference between inserter swings. A lot of the data on this page (specifically the belt to chest data) relies heavily on the conditions of the setup on which the measurements are done. If your setup differs from the ones tested on this page, you can use the following blueprint to do the measurements yourself.

Blueprint.png  Copy blueprint string

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

Chest to chest

Note: Experimental data from 0.18

Type Arm cycles per second Items/second at capacity bonus level (stack size)
No capacity bonus Capacity bonus 2 Capacity bonus 7
Burner inserter.png
Burner inserter
0.60 0.60 (1) 1.20 (2) 1.80 (3)
Inserter.png
Inserter
0.83 0.83 (1) 1.67 (2) 2.50 (3)
Long-handed inserter.png
Long-handed inserter
1.20 1.20 (1) 2.40 (2) 3.60 (3)
Fast inserter.png
Fast inserter
Filter inserter.png
Filter inserter
2.31 2.31 (1) 4.62 (2) 6.92 (3)
Stack inserter.png
Stack inserter
Stack filter inserter.png
Stack filter inserter
2.31 4.62 (2) 9.23 (4) 27.69 (12)

Chest to belt

Throughput going from chest to belt depends on how full the belt is. An inserter will not put down an item on a belt that have items back-to-back (aka full compression) - it waits until there is a gap. However, if the gap is narrower than the item then the items upstream on the belt will stop to make room for the item being inserted. The direction of the belt compared to the inserter does not matter however.

In these measurements inserters move items onto an empty belt. Values are given for the stack sizes at three different capacity bonus levels.

Note: Experimental data from 0.18

Type Items/second at capacity bonus level (stack size)
No capacity bonus Capacity bonus 2 Capacity bonus 7
Transport belt.png Fast transport belt.png Express transport belt.png Transport belt.png Fast transport belt.png Express transport belt.png Transport belt.png Fast transport belt.png Express transport belt.png
Burner inserter.png
Burner inserter
0.60 0.60 0.60 (1) 1.19 1.19 1.19 (2) 1.67 1.73 1.76 (3)
Inserter.png
Inserter
0.83 0.83 0.83 (1) 1.64 1.64 1.64 (2) 2.25 2.37 2.43 (3)
Long-handed inserter.png
Long-handed inserter
1.20 1.20 1.20 (1) 2.35 2.35 2.35 (2) 3.10 3.33 3.46 (3)
Fast inserter.png
Fast inserter
Filter inserter.png
Filter inserter
2.31 2.31 2.31 (1) 4.44 4.44 4.44 (2) 5.29 6.00 6.43 (3)
Stack inserter.png
Stack inserter
Stack filter inserter.png
Stack filter inserter
4.44 4.44 4.44 (2) 5.71 7.06 7.74 (4) 6.79 10.91 13.85 (12)

Chest to splitter

When an inserter drops items onto the side of a perpendicular splitter, it always is considered to do so on the input side, enabling the splitter to move half of the items to the other belt (assuming that the splitter filter/priority settings allow it to do so and that there is available space on both belts). This allows the inserter to drop its items twice as fast. A fully upgraded stack inserter can drop twelve items onto an express splitter every 38 ticks (18.95 items/second) instead of the usual 52.

By inserting onto the side of a splitter, a fully-upgraded stack inserter can fill 84% of an express belt lane instead of the usual 62%.

Belt to chest (perpendicular)

Note: Experimental data from 0.18

When picking items from a belt, many more factors come into play besides belt fullness:

  • How fast the items move (i.e. if they are queued up on the belt or move at belt speed).
  • Whether the belt is perpendicular to the inserter or approaches it head on.
  • Whether items are on the near or far lane of a perpendicular belt.
  • Whether the belt turns or not, and whether the items are in the inner or outer side of the bend.
  • If the belt is an underground entrance or exit. This shortens the time items are visible to the inserter for pickup.
  • All sorts of intricate timing factors between the inserter and the items on the belt, since the game simulates the arm homing in on every item.

The test setup used below is with an inserter taking items from a perpendicular belt with items on the far lane only. The belt is fully compressed and timings are both for items that move at full speed and queued up as much as possible. Values are given for the stack sizes at three different capacity bonus levels.

Type Items/second at capacity bonus level (stack size)
No capacity bonus Capacity bonus 2 Capacity bonus 7
Items at
belt speed
Items
queued
up
Items at
belt speed
Items
queued
up
Items at
belt speed
Items
queued
up
Transport belt.png Fast transport belt.png Express transport belt.png Transport belt.png Fast transport belt.png Express transport belt.png Transport belt.png Fast transport belt.png Express transport belt.png
Burner inserter.png
Burner inserter
0.60 0.65 0.50 0.64 (1) 1.11 1.20 1.13 1.26 (2) 1.61 1.61 1.65 1.71 /
1.73 /
1.86 *
(3)
Inserter.png
Inserter
0.94 0.94 0.94 0.88 (1) 1.67 1.67 1.50 1.74 (2) 2.50 2.25 2.33 2.37 /
2.37 /
2.54 *
(3)
Long-handed inserter.png
Long-handed inserter
1.18 1.18 1.25 1.20 (1) 2.20 2.31 2.40 2.40 (2) 3.21 3.21 3.46 3.40 (3)
Fast inserter.png
Fast inserter
Filter inserter.png
Filter inserter
2.50 2.31 2.50 2.50 (1) 4.50 4.29 5.00 4.80 (2) 6.43 6.00 6.43 6.43 (3)
Stack inserter.png
Stack inserter
Stack filter inserter.png
Stack filter inserter
4.50 4.29 5.00 4.80 (2) 7.50 7.50 8.00 7.50 /
8.57 /
8.28 *
(4) 7.50 11.25 15.00 7.50 /
13.09 /
15.32 *
(12)

*) Throughput for basic/fast/express belt.

Since there are many more factors involved, these measurements exhibit a more complex pattern than chest-to-belt.

  • Boldface cells show for which belt each inserter has the best throughput on each bonus level when items move at belt speed. Higher speed belts mean that inserters have to work harder to catch the fast moving items. The effect is most noticeable for slower inserters and smaller stack sizes.
  • When items are queued up the belt type hardly matters, so there is only a single column for that. The exceptions are the stack inserters - for basic transport belts it's the belt that sets the limit for stack sizes above 4, and there is also a notable difference between fast and express belts.

Belt to Chest (facing inserter)

Note: Experimental data from 0.18

When picking up items from a belt facing the inserter, there are multiple small differences between different setups. The following throughput tests are performed with express transport belts and stack inserters with the maximum capacity bonus. Each setup in the following picture shows the amount of ticks per cycle of the inserter and the amount of items per second the inserter moves. These measurements are consistent in all orientations of the setup.

Inserter belt to chest throughput.png

See Also