Arknights: Endfield Complete Valley IV Blueprint Guide and Codes
2026-02-16
Are you stuck at the same place while building your Arknights: Endfield Valley IV base? Then no worries! We have the best base layouts to make your work much easier. This Arknights: Endfield Valley IV factory guide brings you the top blueprints for battery setups, planting units, explosives and Buck Capsules all with their blueprint codes. Using these codes will make your base building faster, easier, and more productive. So, grab them and save your time!
Table of Contents

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Arknights: Endfield Battery Blueprints
The most important blueprint to prioritize in Arknights: Endfield Valley IV is the power supply. Every factory system depends on stable power, and batteries are the core of that system.

At the start of the Valley IV factory, you will rely on lower-tier battery chains, then gradually upgrade to higher-capacity batteries as more materials become available. Below are the best Arknights: Endfield Valley IV battery blueprints, from early game to end game.
LC Valley Battery (Early Game)
In the early game, LC Valley Batteries are the easiest and most reliable way to generate power for your base. This battery provides 220 Power, which is enough to maintain basic factory operations in Valley IV.

Chain:
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Amethyst Part + Originium Powder → LC Valley Battery
Arknights: Endfield Valley IV blueprint code:
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Asia: EFO01O4a7i88eEI3i9oe4
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NA / EU: EFO0189304IUUO1eUI73
SC Valley Battery (Mid Game)
The SC Valley Battery is your main mid-game power solution. This battery setup provides 420 Power and feeds directly into Thermal Banks, increasing your overall AIC power capacity. Once you unlock Ferrium Parts consistently, this battery becomes the most efficient upgrade from LC Valley Batteries.

Chain:
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Originium Powder + Ferrium Part → SC Valley Battery
Blueprint Code:
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Asia: EFO01602I3AAu171EO83e
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NA / EU: EFO011eai39OOIU734O7
HC Valley Battery (End Game)
The HC Valley Battery is the most advanced and powerful power supply in Valley IV. Each battery provides a massive 1100 Power to the Thermal Banks, making it essential for late-game factory optimization.
Unlocking and maintaining this chain allows for rapid progression and supports high-tier production lines.

Chain:
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Sandleaf Powder + Originium Powder → Dense Originium Powder
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Dense Originium Powder + Steel Part → HC Valley Battery
Blueprint Code:
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NA / EU: EFO01893u5E3O61AuUI73
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Asia: EFO0119467A763U2734O7
Planting Units Blueprints
The next big thing to maintain in the Arknights: Endfield Valley IV factory is the Planting Units. These are the most needed raw materials for bigger item production chains. In Arknights: Endfield Valley IV, you have main plant materials such as Sandleaf, Citrome, Aketine, and Buckflowers.
You can use these materials to craft Sandleaf Powder, Aketine Powder, and Carbon, which are very useful for building other materials. You should build a combination of Planting Units and Seed Picking Units to create better loop chains and get higher output efficiency.

So, here is the Arknights: Endfield best blueprint for all four plant materials.
Valley IV Blueprint Code for Plant Materials:
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Asia: EFO014E628u827371E71A
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NA / EU: EFO01eE7U2i6eo4AaoAi8
This blueprint contains a loop process for all four plant materials of Sandleaf, Citrome, Aketine, and Buckflowers, making them easy to produce and maintain in your Valley IV factory.
Industrial Explosives Blueprints
Industrial Explosives are a key factor in Arknights: Endfield Valley IV. They are useful for exploration, combat, and quest completion. You should always keep a few Industrial Explosives prepared for emergencies, but it is not recommended to produce them continuously.

Chain:
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Amethyst Part + Aketine Powder → Industrial Explosives
Arknights: Endfield Valley IV blueprint code:
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Asia: EFO01ouiI919I263OIieO (Asia)
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NA / EU: EFO01U4Ai57aU3O247Oa8 (NA / EU)
Buck Capsule Blueprint
Buck Capsules are late-game required items in Arknights: Endfield Valley IV. These items are extremely valuable in battles, as they can instantly restore HP for operators. Below are the Valley IV factory blueprints for Buck Capsules.

Buck Capsule A Blueprints
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Asia: EFO01ouiO4EUeA63aIieO
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NA / EU: EFO01893u6u8aE127UI73
Buck Capsule B Blueprints
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Asia: EFO01O4a7i1A7oIA9oe4
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NA / EU: EFO0136uI1EI3ia9057
Other Essential Blueprints
Below are some other Arknights: Endfield Valley IV factory blueprints that can be useful for building and maintaining your base:
|
Blueprint Layout |
Blueprint Code |
|
Cryston Component |
EFO0101O3o515ai1OE979 (Asia) |
|
Ferrium Component |
EFO019aEu8UU36eu5UI2 (Asia) EFO01eE7O6A33a4ioAi8 (NA/EU) |
|
Amethyst Component |
EFO01ouiO4aa58639IieO (Asia) |
|
Buckflower Powder |
EFO0101O3o6AI7iaE179 (Asia) EFO01eE7O6A33a48oAi8 (NA/EU) |
|
Steel Bottle |
EFO01I3A5280E1995o08 (Asia) EFO01U4A2aeII9O67Oa8 (NA/EU) |
Best Tips for Arknights: Endfield Valley IV Factory Blueprints
Below are some practical tips to help your Valley IV factory run smoothly and faster:

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Prioritize Power First: Always build batteries early. Low power will stop all factory systems. Upgrade your batteries step by step from LC → SC → HC as you unlock new materials.
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Depot Bus Placement: Place your Depot Buses on both sides of the Main PAC (Sub-PACs have only one side). This keeps your factory layout clean, makes the base easier to manage, and helps items move smoothly between production lines and depots.
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Stock Bills Farming: Trade with camps and check their demands daily. Do Depot deliveries and use friend assists to earn up to 930k extra per day. Sell extra items like Buck Capsules for profit.
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Max Ore Mining: Place Electric Mining Rigs on every available node. More ore means faster progress. Focus on Ferrium, Amethyst, and Originium.
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Region Match: Blueprint codes are region-locked. Asia codes will not work on NA / EU, so always double-check your server.
How to Import Arknights: Endfield Valley IV Blueprints
Here is the step-by-step method to build the best layouts using the given blueprint codes:

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Copy the blueprint code that you want to use.
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Open the AIC Factory in Valley IV.
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Go to the Blueprint Menu.
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Select the Shared Blueprint tab.
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Click on the Import Blueprint button.
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Paste the copied blueprint code into the given space.
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The blueprint is now ready to build. Place it in a free space within your base to start using it.
Tip: These Blueprint Codes may not work if your server region doesn't match or if you lack unlocks. You can edit blueprints after placing them.
Conclusion
And that’s a wrap for our Arknights: Endfield Valley IV factory blueprint guide! Now you can take a break from struggling with base building. Just copy the blueprint codes, arrange your layouts, and gain a big advantage to make building your base much easier and faster! Also, keep connected to your base with the Arknights: Endfield PC version even when you are away with your mobile to play remotely using OSlink for more fun.
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