Neptune 4 Pro, Build Volume: 225 x 225 x 265 mm³ (CAT#: STEM-TDP-0109-LC)

Accelerate Your Printing with Klipper
Equipped with the Klipper motherboard and a quad-core ARM 64-bit processor operating at 1.5G, the Neptune 4 Pro enables faster command processing and execution, achieving print speeds of up to 500mm/s. This allows you to complete your printing tasks swiftly and effectively. With the Klipper firmware pre-installed, you can start printing immediately without dealing with firmware installation issues.
Moreover, it features input shaping, which reduces artifacts and resonances on printed surfaces, and pressure advance, which forecasts nozzle pressure for more precise and consistent filament extrusion, minimizing oozing and blobbing.
Powerful Extrusion & Enhanced Hotend
One of the standout features of the printer is its dual-gear direct drive extruder, which ensures smooth and reliable extrusion while being 75% lighter than the Neptune 3 Pro. The 5.2:1 reduction ratio and dual-gear setup provide a stronger grip on the filament, preventing slipping or grinding of flexible materials. Additionally, the copper-titanium bi-metal throat pipe features an innovative air duct design that accelerates heat dissipation, reducing the likelihood of nozzle clogs.
With a high-temp nozzle capable of reaching 300°C and an extended hotend design, the Neptune 4 Pro efficiently melts various filament types, including PLA, PETG, ABS, ASA, TPU, and high-temperature options like nylon.
Exceptional Heat Dissipation
The printer is equipped with two enhanced 4015 ball-bearing cooling fans on each side of the print head, along with four 4020 ball-bearing auxiliary fans located behind it. This setup guarantees rapid, all-around cooling of freshly printed layers, even at high speeds, allowing for better results with overhangs and bridges as the hot filament quickly bonds.
Stable & Quiet Printing
The ELEGOO Neptune 4 Pro 3D printer is designed for quiet and precise printing with its silent drivers for all axes, reducing noise to below 50 dB. Its wear-resistant POM V-guide wheels move quietly, smoothly, and accurately.
The Z-axis dual lead screw + Z-axis dual motor design provides better synchronization, increasing the accuracy and stability of the print head movement.
Smoother Model Surface
Support for advanced functions like input shaping and pressure advance helps achieve a smooth model surface and consistent extrusion.
Intelligent Segmented Heatbed
With a power output of 100W + 150W, the slicing software automatically recognizes the size of the model during slicing and activates the peripheral heating zone if the model size exceeds the center heating zone (120 mm x 120 mm).
The two partitions can also be turned on and off manually for more precise temperature control.
Additionally, the surface of the PEI magnetic platform is marked for guidance.

Product Model: Neptune 4 Pro
Printing Technology: FDM (Fused Deposition Modeling)
Frame Material: CNC machined aluminium extrusion
Voltage: 115/230V 50/60Hz
File Transfer Method: LAN, USB
File Format: STL, OBJ
UI Language: English, French, German, Russian, Italian, Spanish, Japanese, Chinese
Build Volume: 225 x 225 x 265 mm³
Printing Platform Size (PEI Area): 235 x 235 mm²
Machine Size: 475 x 445 x 515 mm³
Package Size: 630 x 510 x 260 mm³
MAXIMUM SIZE FOR MACHINE ACTIVITY/MM: 475 x 550 x 735 (Including Rack & Tray)
Max. Nozzle Temperature: 300 °C
Max. Hot bed Temperature: 110 °C
Filament Compatibility: PLA / TPU / PETG / ABS / ASA / Nylon
Net Weight: 8.9 kg
Gross Weight: 13.92 kg
Resume Printing: Yes
Filament Detection: Yes
Max Speed of Tool Head: 500 mm/s
Max Acceleration of Tool Head: 20000 mm/s²

Print Volume: 225 x 225 x 265 mm³
Max Printing Speed: 500 mm/s
Intelligent Segmented Heatbed
121 (11 x 11) Points Auto Bed Leveling
Up To 300 °C High-Temp Nozzle
Support PLA/TPU/PETG/ABS/ASA/Nylon Filaments
USB/LAN Transfer