How to craft Buck Capsule (A) in Arknights Endfield

The Buck Capsule (A) is one of the most profitable products you can produce in Arknights Endfield, but also one of the most complex. Crafting it requires a huge amount of materials and factory space. Planning such a production line is a challenging task. This guide presents a simple chain that operates with 100% efficiency.

Factory layout for Buck Capsule (A)

Unlike the Buck Capsule (B) production, this plant is much larger and is divided into two independent lines using the following materials:

• Double Steel Bottle Production Line
  • Ferrium Ore → Ferrium → Ferrium Powder → Dense Ferrium Powder → Steel → Steel Bottle
  • Sand Flower → Sand Flower Powder → Dense Ferrium Powder → Steel → Steel Bottle
• Ground Buckflower Powder Production Line
  • Buckflower + Sandflower → Ground Buckflower Powder

All necessary materials are produced directly on the AIC’s main production floor , so this layout will occupy approximately 40% of the space of a fully upgraded facility. The entire chain is so large that it can’t be saved as a drawing, so we’ll consider each line separately.

Steel Bottle Factory Drawing

Exchange code (Asia): EFO01u8U38eEiA0IAoOU

This line uses 10 bus depot unloaders with 8 Ferrium exits and 2 Sand Flower exits . Arrange them as shown in the diagram above and connect them in the following sequence:

• Ferrium Ore → Cleaning Plant → Crushing Plant → Grinding Plant → Cleaning Plant → Molding Plant
• Sand Flower → Crushing Plant → Protocol Warehouse → Grinding Plant

Processing a Sand Flower in a Crusher yields 3 units of powder every 2 seconds. Thus, one such crusher can serve two grinding machines, leaving room for an additional protocol storage for excess powder.

This plant produces 60 Steel Bottles per minute , which is just what is required for continuous production of Buck Capsule (A).

Buckflower Milled Powder Factory Blueprint

This is a self-sufficient Buckflower and Sandflower farm, requiring no external conveyors or forklifts . It uses a simple setup with a Planting Rig, repeated four times: twice for Buckflower and twice for Sandflower.

Start by connecting 1 Seed Collector to 2 Planters. One Planter is connected to the Crusher, and the other simply loops back to the Seed Collector, providing an unlimited supply of plants/seeds.

The extra conveyors connecting the planting/seeding units and warehouses in the diagram above are added purely for aesthetic purposes.

You need to connect 1 Buckflower Chain and 1 Sand Flower Chain to the Grinding Machine to produce Buckflower Powder. Build two such chains to meet the resource requirements for the Buck Capsule (A).

Buck Capsule Production Line (A)

Now that you have your Steel Bottle and Buckflower Powder production lines up and running, all that’s left is to connect them to the Filling Unit, which feeds the Protocol Warehouse. This will produce 6 Buck Capsules (A) per minute.

The setup shown here takes up a lot of space in your main AIC. However, there’s a silver lining: it uses minimal space in the bus depot . Buck Capsule (A) production will largely occupy the empty space in the center of your AIC, leaving more space in the depot for other independent production chains.

You can save space by moving material production (steel, flowers, etc.) to production lines in various outposts in Valley IV. However, even then, you’ll still need roughly the same number of Depot Unloaders, if not more.