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How to Build a Yazhen Syringe Blueprint in Arknights: Endfield

Learn how to import or assemble a Yazhen Syringe production line in Wuling, including the community blueprint code, prerequisites, recipe inputs and troubleshooting checks.
WorldArknights: Endfield Length2 min Posted Quest giverVGSources Team

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To build a Yazhen Syringe production line in Wuling, import a shared blueprint or assemble the machines yourself, then match the bottle input to the recipe: Yazhen Syringe [C] uses Ferrium Bottles, while Yazhen Syringe [A] uses Cuprium Bottles. Both recipes also require Yazhen Solution. Stable output depends on growing Yazhen and keeping the full production chain supplied.

What you need before building

A community guide recommends preparing the following before placing its Wuling layout. Unlocks and item availability can change between game builds, so check them in your current version.

  • Access to Ferrium in Wuling, or enough Valley IV Ferrium stock to help cover an early shortfall.
  • Hydroponics research for cultivating Yazhen.
  • A depot bus, seed pickers, refineries and bottling machines.

Import a shared blueprint

The community guide, dated February 4, 2026, gives this example starter code for NA/EU servers: EFO01o08341I4e6UIieO. It has not been independently verified for the current game build or other regions, so confirm the server region, version compatibility and every character before relying on it.

  1. Open the factory planner.
  2. Select Shared Blueprints, then Import Blueprint.
  3. Paste the code and confirm the import.
  4. Place the layout in an open area of your Wuling base.

These menu labels and steps come from the community guide; the current in-game interface may differ. The Endfield Team described the blueprint system as a way “to make AIC Factory planning and construction easier” in a Beta Test II announcement published November 1, 2025. The team also said that completing certain simulations rewards System Blueprints for relevant products. Official announcement

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Choose the correct syringe recipe

The two listed blueprint variants share Yazhen Solution as an input but use different bottles. Check the recipe before connecting belts or supply lines; the shared “Yazhen” name does not mean the bottle types are interchangeable.

Blueprint Bottle input Other listed input
Yazhen Syringe [C] Ferrium Bottles Yazhen Solution
Yazhen Syringe [A] Cuprium Bottles Yazhen Solution

The recipe entries are from the collaborative community wiki: Yazhen Syringe [C] and Yazhen Syringe [A]. The cited entries do not establish a current numerical comparison of healing effect or market value, so check those details in-game if they matter to your choice.

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Keep production moving

If the line stalls, trace inputs upstream rather than assuming the syringe machine itself is the problem. The community guide specifically recommends checking seed delivery to seed pickers and Ferrium flow into refineries.

  • Confirm Yazhen seeds reach the seed pickers and that cultivation is producing the required material.
  • Check that Ferrium reaches the refineries supplying Ferrium Bottles for a [C] line.
  • For an [A] line, verify that Cuprium Bottles—not Ferrium Bottles—are being supplied.
  • Check that Yazhen Solution reaches the syringe production machines.

The guide’s example layout states a rate of 60 Ferrium per minute for three syringes per minute. Those figures describe that particular community layout, not a general production rate or a guarantee for other designs.

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Blueprints and build compatibility

Blueprints are reusable production layouts: the developer says players can save and share their layouts using blueprint codes, while System Blueprints can be awarded for certain simulations. A shared code is a convenient starting point, but its availability and behavior may depend on region and game version. If the import fails, verify the code character by character, check that the guide’s server region matches yours, and try building the chain manually using the recipe inputs above.

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