Velo3D4kW
Sapphire 4kWWork Area315×315mm
Price$600,000 - $900,000
Browse 31 semi-auto metal 3d printers (dmls/slm) from 15 manufacturers. Compare automation features and throughput.
31 semi auto machines from 15 manufacturers span 0.1kW to 4kW (average 0.8kW). Fully automated systems integrate sheet loading towers, material sorting, and part stacking. These systems target 85%+ laser uptime with minimal operator intervention and are justified at production volumes exceeding 16 hours/day of cutting time.
Automation ROI analysis: Manual systems require the lowest upfront investment and offer maximum flexibility. Ideal for job shops with order quantities under 50 sheets/day where automation payback exceeds 3 years. Among these 31 systems from 6 manufacturing countries, compare automation features using the table above to match your production volume and labor cost structure.
| Brand / Model | Power | Work Area | Max Steel | Speed @5mm | Price Range | Origin |
|---|---|---|---|---|---|---|
| Velo3D Sapphire 4kW | 4kW | 315×315 | — | — | $600,000 - $900,000 | 🇺🇸 |
| GE Additive Arcam EBM Q20plus | 3kW | 350×380 | — | — | $800,000 - $1,200,000 | 🇸🇪 |
| BLT BLT-S450 4x500W | 2kW | 450×450 | — | — | $500,000 - $800,000 | 🇨🇳 |
| Farsoon FS621M 4x500W | 2kW | 620×620 | — | — | $600,000 - $1,000,000 | 🇨🇳 |
| Han's Laser EP-M260 Pro 4-Laser | 2kW | 262×262 | — | — | $200,000 - $400,000 | 🇨🇳 |
| EOS M 300-4 1kW | 1kW | 300×300 | — | — | $800,000 - $1,200,000 | 🇩🇪 |
| Velo3D Sapphire 1MZ | 1kW | 315×315 | — | — | $800,000 - $1,200,000 | 🇺🇸 |
| Nikon SLM SLM 280 PS | 700W | — | — | — | $500,000 - $900,000 | 🇩🇪 |
| SLM Solutions SLM 280 2.0 700W | 700W | 280×280 | — | — | $500,000 - $800,000 | 🇩🇪 |
| DMG MORI LASERTEC 30 SLM 2nd Gen | 600W | 300×300 | — | — | $600,000 - $900,000 | 🇩🇪 |
Selecting the right metal 3d printers (dmls/slm) involves evaluating five critical factors: (1) Material type and maximum thickness — determine the minimum laser power required. (2) Work area dimensions — match to your largest sheet or part size, with common formats being 3015 (3000×1500mm) and 4020 (4000×2000mm). (3) Production volume — high-volume shops benefit from automation features like sheet loading/unloading and nesting software. (4) Budget — consider total cost of ownership including installation, training, consumables, and maintenance, not just purchase price. (5) Service and support — verify the manufacturer has local service partners in your region. Use our comparison table above to evaluate 31 options side by side, filtering by the specifications most important to your application.
Five primary factors determine laser cutting edge quality: (1) Laser power and beam quality (BPP/M²) — lower BPP values produce focused spots with higher energy density for cleaner cuts. (2) Cutting head optics — auto-focus heads with collimation adjustment optimize beam characteristics for different materials and thicknesses. (3) Motion system accuracy — positioning accuracy (±0.03mm typical for premium machines) and repeatability directly affect dimensional precision. (4) Assist gas selection and pressure — nitrogen for oxide-free edges on stainless and aluminum, oxygen for faster thick-steel cutting. (5) Mechanical rigidity — machine bed flatness, gantry stiffness, and vibration damping affect edge straightness and surface roughness. Compare these specifications across our 31 listed machines using the table above.