LMJ – The Next-Gen Powder - Free Metal 3D Printing
What is Liquid Metal Jetting (LMJ)?
Liquid Metal Jetting (LMJ) is a next-generation metal additive manufacturing technology that builds parts by jetting molten aluminium and copper droplets — with no powders, lasers, or complex post-processing.
Developed by Additec, LMJ addresses the challenges of traditional metal 3D printing with a cleaner, safer, and more compact process.
It’s built to handle reflective metals like aluminium and produce high-resolution components for demanding applications. We are also actively developing silver and gold printing for better accuracy. reliability and strength of production-grade aluminium parts.
Here’s how it works – a low-melting-point metal alloy is melted and ejected as tiny droplets onto a build plate in a carefully controlled layer-by-layer process. The result? Clean, high-density parts with excellent mechanical properties and far fewer post-processing steps.
If you’ve been held back by the limitations of traditional 3D printing (like poor surface finish or weak mechanical strength), LMJ gives you a real alternative that’s both cost-effective and production-ready.
LMJ builds your machine part by jetting tiny, molten droplets exactly where they’re needed. The process is simple, clean, and efficient
Aluminium wire (4008 or 6061) or copper is melted inside a sealed chamber, forming a clean, consistent metal pool without using powders or binders.
Specialised printheads eject micro-droplets of molten aluminium directly onto the build platform, layer by layer — with high accuracy and control.
As each droplet lands, it cools and solidifies rapidly. Layers fuse seamlessly without warping, producing strong, near-net-shape parts.
An argon-rich environment protects the aluminium or copper from oxidation, keeping part quality consistent and surfaces clean.
Since there’s no powder to clean or sintering to perform, the printed parts need minimal finishing — saving time, effort, and operational cost.
No powder handling or laser safety concerns. LMJ offers a clean, easy & safer way to print metal with molten metal.
It can achieve ultra-fine features up to 100–200 microns, which is the best for applications like medical implants, electronics, and aerospace parts that focus on complex and detailed parts.
These systems are compact, low-maintenance, and easy to set up, which means no need for a specialised lab environment.
Effortlessly print with metals like aluminium and copper, without the challenges or risks of powder-based systems.
With no powders, post-processing, or material wastage, LMJ helps you cut down operational costs at every stage.
LMJ is built for experimentation, prototyping, and small-batch manufacturing where quality, control, and detail matter most.
Trusted by manufacturers across sectors where precision, uptime, and traceability matter most.
Rapid prototyping and tooling
Die and moulding
Automobile
Product development
Electronic industries
Research and engineering
Real - Time Decisions, Real - Time Result – Automotive Tier 1 Supplier
Paperless, Compliant & Fast – Pharma Batch Traceability
From Chaos to Clarity – Fabrication Shop Floor Monitoring
Smart Packing Floor – FMCG Line Performance Analytics
Yes, it is. LMJ reduces the need for risky metal powder or wire. This makes it cleaner, safer, and simpler to use.
LMJ is best for metals with low melting points such as aluminium, zinc, bronze, tin, and others. It fits well with your needs for material and parts.
You can make parts with small parts as tiny as 100-200 microns. This makes LMJ great for jobs that need high care, like in the medical, electronics, and aerospace industries.
Yes, you can. LMJ machines are clean and compact and don’t require a specialised lab. They’re designed for smooth integration into R&D labs, production floors, or even universities.
LMJ jets molten metal droplets directly onto the component without any laser or powders. Whereas DED melts metal powder or wires using a laser or electric arc and then pours the liquid layer by layer.
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