HP Metal Jet S100 Metal 3D Printer
Key Specifications
Build Volume
Process
Layer Thickness
Printhead Resolution
Primary Material
Additional Materials
Overview
The HP Metal Jet S100 is a binder jetting metal additive manufacturing system designed for high-throughput production of complex stainless steel and metal alloy parts at significantly lower cost per part than laser powder bed fusion systems. Instead of melting metal powder with a laser, the Metal Jet S100 uses HP's thermal inkjet printhead technology to precisely deposit a liquid binder onto thin layers of metal powder. The bound part is then sintered in a furnace to achieve near-full density. The 430x320x200mm build volume and HP's multi-agent binder system enable production of hundreds of small parts per build. Throughput is dramatically higher than LPBF — the S100 is designed for production of 316L stainless steel parts at scale, targeting markets like consumer electronics hardware, industrial components, and automotive structural brackets. HP positions the Metal Jet as a bridge between traditional MIM (metal injection molding) and LPBF.
Full Specifications
| Parameter | Value |
|---|---|
| Build Volume | 430 x 320 x 200 mm |
| Process | Binder jetting (thermal inkjet) |
| Layer Thickness | 35 - 140 µm |
| Printhead Resolution | 1,200 dpi |
| Primary Material | 316L stainless steel |
| Additional Materials | 17-4 PH stainless, Inconel 625 (development) |
| Throughput | Up to 50x more parts/hr vs. LPBF for small parts |
| Dimensional Accuracy | ±0.3% (after sintering) |
| Sintering Furnace | Required (separate or integrated system) |
| Control Software | HP SmartStream Metal |
Strengths & Limitations
Strengths
- 50x+ productivity vs LPBF for small parts in high volume
- Lower cost per part than laser-based systems at production volumes
- HP thermal inkjet technology provides precise binder deposition
- Large 430x320mm build area for high part density per run
- No support structures needed for most geometries
Limitations
- Requires separate sintering furnace (additional capital and footprint)
- Sintering shrinkage (~20%) requires careful design compensation
- Limited to 316L and 17-4 PH stainless steel currently
- Final density 96-98% (lower than LPBF 99.5%+ for titanium)
- Not suitable for high-performance aerospace alloys
Best For
Frequently Asked Questions
01
LPBF uses a laser to melt and fuse metal powder layer by layer directly in the machine, producing near-fully dense parts. Binder jetting deposits a binding agent to hold powder together without melting — the 'green part' is then sintered in a furnace at 1,300-1,400°C to remove the binder and sinter the metal. Binder jetting is much faster and cheaper for volume production but has lower density and requires a separate sintering step.
02
The S100 targets industries needing high volumes of complex stainless steel parts: consumer electronics enclosures and hardware, automotive structural brackets, industrial tooling components, and medical devices where 316L stainless is an acceptable material choice.
Videos
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