Dense Impulse Itemduct

Dense Impulse Itemduct
Dense Impulse Itemduct

Name Dense Impulse Itemduct
Source Mod Thermal Dynamics
ID Name
Type Block
Stackable Yes (64)
Blast Resistance 30.0
Hardness 1.0
Solid Yes
Transparent No
Affected by Gravity No
Emits Light No
Flammable No
Required Tool Crescent Hammer

The Dense Impulse Itemduct is a block added by the Thermal Dynamics mod. An Itemduct with a higher rate of transfer that will let items through only if no other inventory is available on the system. Any inventory placed after this Itemduct will receive items last as if it was the furthest regardless of its distance from the source inventory. An Itemduct distribution branch connected using 2 of these would receive items only if there is no inventory available on the branch with only one Dense Itemduct and so on [1], setting a lower priority order for each Dense Impulse Itemduct added. The Itemduct interacts with most mods' machines. Some machines such as the Pulverizer will output to a connected Itemduct automatically. The Itemduct has an Opaque version [2] that removes the ability to see the items moving inside, it is cheaper to make and may reduce lag. Dense Impulse Itemduct will connect to all other Itemducts.

Recipe [3][edit]

GUI Crafting Table.png
Impulse Itemduct
Pulverized Lead

Dense Impulse Itemduct



'Right click' on the connection with a Crescent Hammer or any Wrench to disconnect, inversely, 'Right click' on the side to be connected. 'Shift+Right-clicking' will remove the duct [4].


The type of item extracted may be filtered and Redstone control activation setting changed using a config item such as the Servo or the Retriever to extract from a remote source. A Filter may be used in conjunction with the Servo on the receiving end if the Duct system is used with multiple outputs. 'Right-clicking' the Itemduct connection with a config item will install it, 'Right-clicking' again will open the GUI, where the Redstone signal setting may be changed to Disabled, Low or High. A ghost image of an item can be added to the filter inventory and set to White or Black list.


Dense Impulse Itemduct has no known uses in crafting.


  1. In the event that 2 branches of Itemduct were connected to one Dense Itemduct each, the one closer to the source would receive items first until no inventory was available, then items would go to the second branch.
  2. To craft a Dense Impulse Itemduct (Opaque), Impulse Itemduct Impulse Itemduct can be substituted with Impulse Itemduct (Opaque) Impulse Itemduct (Opaque).
  3. Pulverized Lead Pulverized Lead can be substituted with the following items: Lead Dust (IndustrialCraft 2) Lead Dust (IndustrialCraft 2), Lead Grit Lead Grit.
  4. When Removing the Itemduct the items inside will drop.

See Also[edit]

The following items may also be of interest: