Sandustry factory machinery and conveyors

Field notes · Early factory

Seven habits that keep a small factory moving.

The fastest way to lose time is to build a larger version of an unstable loop. These are the constraints that make early production observable, recoverable, and ready to expand.

Start loop
Sand + Water
First machine
Shaker
Sort order
Densest first
Recovery tool
Launcher

Working route

Use the constraint
as the design.

  1. 01 · Make every output visible

    Keep Gold, Residue, and incoming Wet Sand on distinct paths. A jam is easier to fix when its source is visible instead of buried in a pile.

  2. 02 · Give the Shaker a slope

    Wet Sand is denser than Residue. A downward diagonal of Shakers lets incoming Wet Sand settle while the Residue is gradually pushed away.

  3. 03 · Filter the dense material first

    When sorting a mixed pile, configure a Filter for the denser material. Gold settles under Sand, giving it the best chance to reach the Filter.

  4. 04 · Leave a rescue path

    Use a side-facing Launcher or an open collection lane to clear stopped pixels. Do not close the factory until you can recover a blocked input.

  5. 05 · Contain water before scaling

    Water seeks a flat pool and can leak through unblocked corner joins. Build collection depressions and close diagonal seams.

  6. 06 · Treat Lava as a state-change route

    Freeze Lava to Scoria, excavate Cinder, move the solid, then ignite it only inside a contained worksite.

  7. 07 · Test one layer at a time

    A Filter works through a pile with density constraints. Flatten the feed before assuming an allowed material can reach it.

Official Sandustry material flow chart
Official material flow reference: plan each state change as a separate, observable hand-off.

Questions answered

Solve the next
blockage.

What should I automate first in Sandustry?

Start with the Wet Sand to Gold and Residue loop. It is the first documented research route and exposes the material, sorting, and recovery constraints you will use later.

Why does my Shaker line stall?

Residue leaves slowly from the Shaker top. Use a downward-diagonal Shaker layout and keep a clear route for the Residue so Wet Sand can keep reaching the machines.

Do Filters sort every material in a tall pile?

Not reliably. Lower-density pixels above denser ones may not reach the Filter. Configure the densest material first and keep the input layer shallow.

Evidence notes

Confirmed first.
Tested second.

Official Wiki

  • Shakers turn Wet Sand into one Residue and have a roughly 25% chance to produce Gold; Gold exits from the bottom.
  • Filters can allow one pixel type through or block one pixel type; dense material should be filtered first when handling a pile.
  • Water settles into pools, can leak through unblocked corner joins, and evaporates if an unsettled droplet does not find a depression within 45 seconds.

Community-tested

  • New Player SANDUSTRY Guide, 34:45: a player flattens a feed before using a Filter, matching the official warning about mixed piles.
  • I Used LAVA to AUTOMATE My Factory, 11:49: a player discovers the limits of filtering a tall pile and rebuilds the feed path.

These are useful player examples, not official specifications.

Continue the route

Beginner guideWet Sand filter guideWater mechanics