Machine Comparison
EOS M 100 vs EOS M 290
EOS vs EOS · Metal Additive Manufacturing
Summary
The EOS M 100 and EOS M 290 are both from EOS's metal additive manufacturing lineup, making this a common upgrade or lineup decision for shops already invested in the EOS ecosystem. The EOS M 290 leads in laser power (400 W vs 200 W). The EOS M 290 shows specification advantages in 5 categories, though the EOS M 100 may still be the better choice depending on your shop's specific needs and the type of work you run. Both machines are proven performers in production environments and represent solid investments for shops in the market for a metal additive manufacturing.
Specifications Comparison
| Specification | EOS M 100 | EOS M 290 |
|---|---|---|
| Laser Power | 200 W | 400 W ▲ |
| Build Volume | Ø 100 x 95 mm (Ø 3.94 x 3.74 in) | 250 x 250 x 325 mm (9.85 x 9.85 x 12.8 in) ▲ |
| Control | EOS proprietary | EOS proprietary |
| Laser Type | Yb-fiber laser | Yb-fiber laser |
| Number Of Lasers | 1 | 1 |
| Focus Diameter | ~40 µm | ~100 µm ▲ |
| Layer Thickness | 20 - 50 µm (material dependent) | 20 - 100 µm (material dependent) |
| Scan Speed | Up to 7.0 m/s | Up to 7.0 m/s |
| Technology | Direct Metal Laser Sintering (DMLS) | Direct Metal Laser Sintering (DMLS) |
| Materials | Cobalt Chrome, Titanium, Stainless Steel, Precious metals | Aluminum, Cobalt Chrome, Copper, Inconel, Steel, Titanium, Tungsten |
| Inert Gas | Nitrogen | Argon or Nitrogen |
| Power Consumption Max | 2.4 kW | 8.5 kW ▲ |
| Machine Dimensions | 800 x 950 x 2,250 mm (31.5 x 37.4 x 88.6 in) | 2,500 x 1,300 x 2,190 mm (98.4 x 51.2 x 86.2 in) ▲ |
| Software | EOSPRINT, EOSTATE monitoring (optional) | EOSPRINT, EOSTATE monitoring |
| Price Range | $250,000 - $350,000 ▲ | $800,000 - $1,000,000 |
Advantages
EOS M 100
- More competitive pricing at $250,000 - $350,000 compared to $800,000 - $1,000,000
- Backed by EOS's dealer and service network for parts and support
- Dental labs producing crowns, bridges, partial dentures, and custom abutments in cobalt chrome and titanium
EOS M 290
- Superior laser power at 400 W vs 200 W
- Superior build volume at 250 x 250 x 325 mm (9.85 x 9.85 x 12.8 in) vs Ø 100 x 95 mm (Ø 3.94 x 3.74 in)
- Superior focus diameter at ~100 µm vs ~40 µm
- Superior power consumption max at 8.5 kW vs 2.4 kW
- Superior machine dimensions at 2,500 x 1,300 x 2,190 mm (98.4 x 51.2 x 86.2 in) vs 800 x 950 x 2,250 mm (31.5 x 37.4 x 88.6 in)
Verdict
The EOS M 290 edges ahead on specifications in this comparison, particularly in Laser Power and Build Volume. However, the EOS M 100 remains competitive and may be the better choice depending on price, dealer support in your area, or specific workholding and tooling considerations. Both are capable machines — the best decision comes from running your actual parts and evaluating total cost of ownership including tooling, training, and service.