Gweike20kW
LF6025GH 20kWWork Area6000×2500mm
Max Steel90mm
Price$120,000 - $200,000
Find the best fiber laser cutting machines for cutting steel ultra-thick (41mm+). Compare 56 machines from 35 manufacturers. Pricing from $5,000 to $1,200,000.
56 machines from 35 manufacturers are capable of processing mild steel in the ultra thick thickness range. Power distribution across these machines averages 24.6kW (range: 15–60kW), reflecting the laser power requirements for this material-thickness combination.
For mild steel processing, prioritize: beam quality (BPP) for edge quality, assist gas system capacity (nitrogen pressure rating for oxide-free cuts), and cutting head anti-reflection protection. The machines listed above include verified maximum thickness ratings for this specific material.
| Brand / Model | Power | Work Area | Max Steel | Speed @5mm | Price Range | Origin |
|---|---|---|---|---|---|---|
| Gweike LF6025GH 20kW | 20kW | 6000×2500 | 90mm | — | $120,000 - $200,000 | 🇨🇳 |
| Penta Laser BOLT VII 60kW | 60kW | 12000×2500 | 80mm | 90 m/min | $380,000 - $520,000 | 🇨🇳 |
| Cutlite Penta PLUS EVO 12030 60kW | 60kW | 12000×3000 | 60mm | — | $1,200,000 - $1,800,000 | 🇮🇹 |
| SENFENG SF12025H 60kW | 60kW | 12000×2500 | 60mm | — | $900,000 - $1,500,000 | 🇨🇳 |
| Penta Laser BOLT VII 6025 60kW | 60kW | 6000×2500 | 60mm | — | $1,000,000 - $1,500,000 | 🇨🇳 |
| Han's Laser HF Expert 30kW | 30kW | 4000×2000 | 60mm | 70 m/min | $280,000 - $380,000 | 🇨🇳 |
| Penta Laser BOLT VII 30kW | 30kW | 3000×1500 | 60mm | 70 m/min | $200,000 - $280,000 | 🇨🇳 |
| Bodor i7 30kW | 30kW | 3000×1500 | 60mm | 70 m/min | $180,000 - $260,000 | 🇨🇳 |
| Durmazlar HD-F 6020 20kW | 20kW | 6000×2000 | 60mm | — | $200,000 - $350,000 | 🇹🇷 |
| Raytu Laser RT-F6020 20kW | 20kW | 6000×2000 | 60mm | — | $80,000 - $150,000 | 🇨🇳 |
Selecting the right fiber laser cutting machines 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 56 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 56 listed machines using the table above.