Bystronic6kW
ByStar Fiber 6kWWork Area3000×1500mm
Max Steel25mm
Price$220,000 - $300,000
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Find the best fiber laser cutting machines for cutting 25mm+ aluminum. Compare 12 machines with speed and quality data. Pricing from $140,000 to $850,000.
12 machines from 9 manufacturers are capable of processing aluminum in the over 25mm thickness range. Power distribution across these machines averages 14.7kW (range: 6–20kW), reflecting the laser power requirements for this material-thickness combination.
For aluminum 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 — critical for highly reflective materials. The machines listed above include verified maximum thickness ratings for this specific material.
Supplier shortlist
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| Brand / Model | Power | Work Area | Max Steel | Speed @5mm | Price Range | Origin |
|---|---|---|---|---|---|---|
| Bystronic ByStar Fiber 6kW | 6kW | 3000×1500 | 25mm | — | $220,000 - $300,000 | CH |
| TRUMPF TruLaser 5030 fiber | 12kW | 3000×1500 | 50mm | 22 m/min | $550,000 - $700,000 | DE |
| Bystronic BySmart Fiber 4020 6kW | 6kW | 4000×2000 | 25mm | — | $200,000 - $280,000 | CH |
| Koike FIBER PRO 6020 | 15kW | 6000×2000 | 50mm | — | $480,000 - $600,000 | JP |
| Messer Cutting MetalMaster Xcel Fiber | 12kW | 6000×2500 | 45mm | — | $450,000 - $580,000 | US |
| TRUMPF TruLaser 5040 fiber | 20kW | 4000×2000 | 60mm | — | $850,000 - $1,100,000 | DE |
| Bystronic ByStar Fiber 6225 | 15kW | 6200×2500 | 50mm | — | $680,000 - $850,000 | CH |
| Hymson HF6025 Ultra | 20kW | 6000×2500 | 60mm | — | $180,000 - $240,000 | CN |
| Golden Laser GF-4020 Pro | 15kW | 4000×2000 | 45mm | — | $140,000 - $180,000 | CN |
| SENFENG SF6025H Fiber | 20kW | 6000×2500 | 60mm | — | $200,000 - $260,000 | CN |
Yes, modern fiber lasers handle 25mm+ aluminum aluminum effectively with proper parameter optimization. Ultra-thick aluminum (25mm+) requires 12kW+ power with high-pressure nitrogen assist (20+ bar) and specialized cutting parameters to manage aluminum's high thermal conductivity. Dual-nozzle cutting heads improve gas delivery efficiency at these thicknesses. Key parameters include: faster piercing speed to prevent back-reflection damage, optimized focal position (typically 0 to -2mm below surface), and pulse-mode piercing for thick sections. Our 12 listed machines are verified capable of processing this aluminum thickness range.
Aluminum presents three main challenges for laser cutting: (1) High reflectivity at 1070nm wavelength (fiber laser) — approximately 92% of laser energy is reflected by unprocessed aluminum surfaces, requiring protective anti-back-reflection systems on the cutting head and laser source. (2) High thermal conductivity (237 W/m·K vs. 50 W/m·K for steel) — heat dissipates rapidly from the cutting zone, requiring more power to maintain the melt pool. (3) Low viscosity molten aluminum — the melt pool is more difficult to eject cleanly, potentially causing dross adhesion on the bottom edge. Modern fiber lasers with BPP values under 4 mm·mrad mitigate these issues through higher focused energy density.