BLM Group3kW
LT7 LasertubePrice$280,000 - $380,000
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Compare 8 standard speed tube laser cutting machines ranked by cutting speed at 5mm steel. Benchmark data from 3 brands. Pricing from $180,000 to $400,000.
8 machines from 3 manufacturers are benchmarked in the slow cutting speed category. Laser power across these systems averages 3.7kW (3–6kW range). Cutting speed is the single most impactful specification for production throughput — faster cutting directly reduces per-part cost on materials accounting for 60–80% of typical job shop processing time.
Speed benchmarks must be interpreted in context: (1) they're measured on specific materials and thicknesses (typically 5mm mild steel with N₂ assist), (2) real production speed also depends on acceleration capability, pierce time, and non-cutting traverse speed, and (3) a machine with lower peak cutting speed but higher acceleration may outperform on complex contours with frequent direction changes. Evaluate the 8 machines above based on your dominant material-thickness combination.
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| Brand / Model | Power | Work Area | Max Steel | Speed @5mm | Price Range | Origin |
|---|---|---|---|---|---|---|
| BLM Group LT7 Lasertube | 3kW | — | — | — | $280,000 - $380,000 | IT |
| BLM Group LT8 Lasertube | 3.5kW | — | — | — | $350,000 - $480,000 | IT |
| BLM Group LT8.20 Lasertube | 4kW | — | — | — | $400,000 - $550,000 | IT |
| BLM Group LTX Lasertube | 3kW | — | — | — | $220,000 - $300,000 | IT |
| BLM Group LC5 Combi | 4kW | 3000×1500 | — | — | $380,000 - $520,000 | IT |
| Mazak FT-150 Fiber | 3kW | — | — | — | $300,000 - $420,000 | JP |
| Mazak FT-150 NEO | 3kW | — | — | — | $350,000 - $480,000 | JP |
| Han's Laser TH65F Tube Laser | 6kW | — | — | — | $180,000 - $260,000 | CN |
Laser cutting speed depends on six primary factors: (1) Laser power — higher wattage enables faster cutting at the same thickness. (2) Beam quality (BPP/M²) — lower BPP values produce smaller focused spots with higher energy density. (3) Material type — mild steel cuts fastest, followed by stainless and aluminum. (4) Material thickness — speed decreases exponentially with thickness. (5) Assist gas — nitrogen enables faster cutting on thin materials vs. oxygen. (6) Motion system — linear motor drives achieve higher acceleration (up to 3G) than ball-screw systems (typically 1–1.5G), reducing non-cutting time between contours. Our 8 listed machines are benchmarked at 5mm mild steel with nitrogen assist for standardized comparison.
On LaserSpecHub, we standardize cutting speed benchmarks at 5mm mild steel with nitrogen assist gas to enable fair cross-machine comparison. This thickness represents a common production scenario where speed differences between machines become apparent. Manufacturer-stated speeds are verified against independent test data where available. Note that actual production speed also depends on acceleration/deceleration capability, piercing time, and non-cutting traverse speed. A machine with 20 m/min cutting speed but 3G acceleration may outperform a 25 m/min machine with only 1G acceleration on complex contours with many direction changes.