Elegoo

Elegoo Saturn 4 Ultra 12K

LCD 12K resin printer. Build volume: 218.88 × 122.88 × 220 mm.

Assessed from documentation Updated on October 4, 2026

How to recognize it: Check the full model name “Saturn 4 Ultra 12K” on the label or in device information. Suffixes and revisions identify different models; check the source before selecting parts.

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Technical specifications

Manufacturer specifications for the listed configuration. Notes identify accessories, measurement conditions and calculated values.

Technology and structure2

Technology	MSLA
Build area shape	Rectangular

Build area and volume4

Build area X	218.88 mm
Build area Y	122.88 mm
Build area Z	220 mm
Build volume	5.9171 L Calculated from nominal X × Y × Z dimensions.

Speed and performance1

Advertised maximum vertical speed	150 mm/h Manufacturer claimed maximum; depends on resin and settings.

Resolution7

Minimum layer thickness	0.01 mm
Maximum layer thickness	0.2 mm
Exposure LCD diagonal	10 in
LCD resolution X	11,520 px
LCD resolution Y	5,120 px
XY pixel pitch X	19 µm
XY pixel pitch Y	24 µm

Features3

Automatic leveling	Yes
Power loss recovery	Yes
Camera	Built in

Dimensions and weight4

Machine width	329.2 mm
Machine depth	327.4 mm
Machine height	548 mm
Net weight	14.5 kg

Technical sources: Saturn 4 Ultra 12K — documentazione ufficiale · Saturn 4 Ultra 12K — specifiche tecniche ufficiali

Undocumented specifications (23)

Enclosed as standard: Not documented
Installed toolheads / extruders: Not documented
Chamber heating: Not documented
Maximum chamber temperature: Not documented
Maximum resin heating temperature: Not documented
UV wavelength: Not documented
Air filtration: Not documented
Control display diagonal: Not documented
Control display: Not documented
Connectivity: Not documented
Listed slicers: Not documented
Firmware: Not documented
Internal storage: Not documented
Manufacturer-listed materials: Not documented
Rated power: Not documented
Power supply: Not documented
Advertised noise: Not documented
Leveling method: Not documented
Light source: Not documented
Release film: Not documented
Automatic resin feeding: Not documented
Resin vat capacity: Not documented
Advertised Z accuracy: Not documented

No published compatibility for this printer.

Related guides

General guides help identify print defects. Follow the manual for your exact model and variant for disassembly, maintenance and calibration.

Failed resin print: model detached from the build plate or stuck to the FEP
How to work out why a resin model doesn't stick to the build plate, stays stuck to the release film or splits between layers, and what to check in order: resin, temperature, leveling, settings, orientation, film.

Official documentation

Manuals and guides published by Elegoo. Links go to the manufacturer’s site; we consulted them on the date shown.

Support page

Official wiki hub page (support, troubleshooting, spare parts) — English, accessed on October 5, 2026

User manual

User manual (PDF, English) — English, accessed on October 5, 2026

Maintenance

How to improve platform leveling — English, accessed on October 5, 2026
Cleaning resin spilled into the tilting platform groove — English, accessed on October 5, 2026

Troubleshooting

Abnormal noise while printing / model stuck to the vat bottom — English, accessed on October 5, 2026
Self-test error: auto-leveling failed — English, accessed on October 5, 2026
Self-test error: foreign object detected — English, accessed on October 5, 2026
Self-test error: mechanical sensor — English, accessed on October 5, 2026
Self-test error: X-axis motor status (vat tilting) — English, accessed on October 5, 2026
UV light does not turn on — English, accessed on October 5, 2026
Z-axis motor not working properly — English, accessed on October 5, 2026

Parts replacement

Release film kit replacement (FEP/release film) — English, accessed on October 5, 2026
Cooling fan replacement (A1S041) — English, accessed on October 5, 2026
Z-axis lead screw nut replacement — English, accessed on October 5, 2026

Firmware and software

Elegoo, 12 models — ELEGOO download center (firmware and software) — English, accessed on October 5, 2026
Firmware update via USB drive — English, accessed on October 5, 2026

Technical specifications

Official technical specifications — English, accessed on October 5, 2026

Sources

Saturn 4 Ultra 12K — official documentation — Elegoo, accessed on October 4, 2026
Saturn 4 Ultra 12K — official technical specifications — Elegoo, accessed on October 5, 2026