20 Furnace Supersmelter V1.1 Schematic provides a massive, fully automated smelting system for your world. This build uses bamboo to create fuel and smelt items without you needing to do anything manually. It features a smart farm that harvests bamboo and turns it into planks for the 20 furnaces. The system stays quiet when it is not working and includes special circuits to prevent items from getting stuck. This large redstone machine handles everything from growing fuel to finishing the smelting job.

20 Furnace Supersmelter V1.1 Schematic Thumbnail

3D Preview:

Features:

  • Automatic Fuel: A built-in bamboo farm harvests fuel and protects the system from overflow.
  • Smart Crafting: Parallel crafter banks turn raw bamboo into bamboo planks to use as furnace fuel.
  • Minecart System: The machine only launches the minecart when items are ready to be smelted.
  • The system operates silently so it does not make noise while idling.
  • A second delay circuit for harvesting prevents bamboo from being left on the ground.
  • Fuel buffer detection stops planks from entering the wrong slots and breaking the furnaces.
  • Special logic circuits handle new items being added while the machine is shutting down.
  • Sticky piston design helps the machine work correctly even if chunks load partially.

Schematic Specs:

Minecraft1.21.x
Dimensions25×27×67
Total Blocks22,595
Bamboo 15,440Glass 2,731Smooth Stone 1,407Grass Block 1,180Rail 863

How to Use:

  1. Place the schematic in your world using a tool like Litematica.
  2. Put the items you want to smelt into the input chest.
  3. Wait for the bamboo farm to generate enough fuel for the crafters.
  4. The system launches a minecart automatically to distribute items to the 20 furnaces.
  5. Collect your smelted items from the output area once the process finishes.
  6. If the system stops moving due to chunk loading issues, remove all items from the input chest and hoppers, then put them back twice to reset the timers.

Screenshots:

Twenty furnace supersmelter schematic featuring an automated bamboo farm
Twenty furnace supersmelter schematic featuring an automated bamboo farm
Side view of complex redstone wiring and chests for automated smelting
Side view of complex redstone wiring and chests for automated smelting

20 Furnace Supersmelter V1.1 Schematic Download Links

For Minecraft 1.21.x

Vanilla 14 KB Sep 4, 2026

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