The AMTG G4 is the world’s largest construction 3D printer: a 30×30 m gantry portal that prints the biggest structures layer by layer. From $680,000.
When the project outgrows every other machine, the G4 is the answer. Nothing prints bigger.
Thirty meters by thirty meters of portal frame — a 26×26×12 m print envelope. Entire industrial halls, warehouses and large public buildings fit inside a single setup.
Scale changes the economics: one G4 setup replaces the work of many smaller machines, with fewer joints and faster completion.
Like every AMTG gantry, the G4 prints walls, facades and architectural details straight from the digital model — curved or straight, all in one pass.
The G4 ships as a synchronized production unit: the printer, a concrete preparation station, a foam concrete system and a power generator — everything timed to the print head.
Printing speed reaches 0.8 m³/h. Every machine carries a 12-month warranty, and operator training is free.
The G4 prints the same materials as the rest of the AMTG line — cement mixes with or without additives, gypsum mixes — prepared by its synchronized station.
If your project is the biggest one around, it needs the biggest printer. The G4’s 30×30 m portal exists for exactly that.
Tell us about your project: info@amt-g.net — an application review matches the machine to the project before you spend anything.