Moon Sweepers Guide

Factory Ratio Calculator (Pressure Chamber : Stone Press)

Updated · Automation

Quick answer

With the build-menu rates (Pressure Chamber 25 kg/min; Stone Press 10 kg dust + 10 kg Moon Sand → 20 kg/min), the balanced ratio is 2 Pressure Chambers : 5 Stone Presses — the same 1 : 2 : 5 (Catcher : Chamber : Press) that players post. Every 100 kg/min of dust needs 2 Chambers and 5 Presses, about 110 kW of power, and turns the dust into Moonstone worth about 7× raw dust. Use the calculator for your own numbers.

Factory ratio calculator

Pressure Chambers

2

2 exact

Stone Presses

5

5 exact

Value vs. selling raw

7×

≈ 700 kg/min of raw-dust value

Power needed

110 kW

15 × Solar Twin (7.5 kW) or 37 × Solar Post (3 kW) by day

Panels for night

14

about 2 large panels per machine (guides' advice)

Belts in

1

at 100 kg/min per belt

Split the incoming dust: 50 kg/min into Pressure Chambers, 50 kg/min straight into Stone Presses (their other input takes the Moon Sand). Output: 100 kg/min of Moonstone.

Rates are from the in-game build menu as reported by guides (Pressure Chamber 5 kg / 12 s; Stone Press 1 kg dust + 1 kg Moon Sand → 2 kg every 6 s). Value is relative to selling raw dust, because the base price per kg isn't published. Machine counts are rounded up; ⚠️ = single-source or player-measured number.

How the ratio works

Machine Takes Makes Power
Pressure Chamber 25 kg/min dust 25 kg/min Moon Sand (3×) 10 kW
Stone Press 10 kg/min dust + 10 kg/min Moon Sand 20 kg/min Moonstone (7×) 18 kW

One Stone Press plus the 0.4 Pressure Chamber that feeds it eats 20 kg/min of dust in total. So:

Dust per minute Pressure Chambers Stone Presses Power Belts in (~100/min)
50 kg 1 3 (2.5) 64 kW 1
100 kg 2 5 110 kW 1
200 kg 4 10 220 kW 2
400 kg 8 20 440 kW 4

That matches the player layouts going round: 1 Capsule Catcher : 2 Chambers : 5 Presses per belt, or a “full” factory of 2 Catchers, 4 Chambers and 8 Presses (which runs the presses a little short of sand).

Building it

  1. Bring the dust in on one belt per ~100 kg/min — belt speed is the main bottleneck.
  2. Split it: 40% to the Pressure Chambers, 60% straight to the Stone Presses’ dust side.
  3. Send the Moon Sand to the presses’ other input, merge the Moonstone and belt it into the depot intake (it’s paid on arrival — automation).
  4. Power: about 2 large solar panels per machine so batteries last the night (night).

The machine rates are reported from the build menu by guides, not measured by us; the Stone Press recipe in particular has conflicting reports. If your numbers differ, open “Change machine rates” in the calculator.

FAQ

What is the best Stone Press ratio in Moon Sweepers?

2 Pressure Chambers to 5 Stone Presses. Each Stone Press needs 10 kg/min of Moon Sand, and each Pressure Chamber makes 25 kg/min, so 5 presses (50 kg/min) need exactly 2 chambers.

How many J.O.O.N.A.S. per Capsule Catcher?

Players say 3–5. One player estimate puts a J.O.O.N.A.S. at about 20 kg/min, so 5 of them fill one belt of about 100 kg/min — the calculator uses those numbers, and you can change them.

Is it worth making Moonstone instead of Moon Sand?

Yes if you have the power: the same dust is worth about 7× as Moonstone versus 3× as Moon Sand. The catch is power — a Stone Press uses 18 kW against 10 kW for a Pressure Chamber, and solar makes nothing at night.

Related guides

Sources

Checked against the current version on · Medium confidence — consistent community reports, not officially confirmed. Spotted something outdated? Tell us.

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