HAN'S 20kW End User: 12 m/min on 10mm Carbon Steel with Mixed Gas
On-site verified data from a high-volume job shop in Foshan running two HAN'S 20kW fiber lasers — before and after switching from pure oxygen to LISHI mixed gas.
The Challenge
A high-volume sheet metal fabricator in Foshan runs two HAN'S 20kW fiber lasers 16 hours a day, processing carbon steel from 3mm to 16mm. With a growing order book and tight delivery deadlines, every minute of beam-on time counted.
- Lasers: 2× HAN'S 20kW fiber lasers
- Material: Carbon steel (3mm–16mm)
- Operation: 16 hours/day, 6 days/week
- Previous gas: Pure oxygen — speeds too slow to meet order volume
- Bottleneck: Cutting speed was the limiting factor; downstream welding and assembly were waiting on parts
The Solution: LISHI Series Mixed Gas — One Station Feeding Two Lasers
LISHI Series installed a single mixed gas station feeding both HAN'S 20kW lasers simultaneously. The precise N₂/O₂ blend enables high-temperature oxidation at the cut front — delivering oxygen's cutting energy with nitrogen's clean edge profile.
The shop saw immediate throughput gains: cutting speeds jumped 2.5–3.5x across all thicknesses. Daily output increased 160% without adding shifts or machines.
Verified Cutting Parameters
On-site test data from the HAN'S 20kW end user in Foshan. All cuts verified burr-free with silver-white edges.
| Thickness | Mixed Gas Speed | Previous O₂ Speed | Speed Gain | Result |
|---|---|---|---|---|
| 3mm | ~30 m/min | ~10 m/min | 3.0x | Clean, burr-free |
| 6mm | 18 m/min | ~6 m/min | 3.0x | Weld-ready edge |
| 8mm | ~14 m/min | ~4.5 m/min | 3.1x | No oxidation |
| 10mm | 12 m/min | ~3.5 m/min | 3.4x | Silver-white edge |
| 12mm | ~8 m/min | ~2.8 m/min | 2.9x | Burr-free confirmed |
| 16mm | 6 m/min | ~2 m/min | 3.0x | Clean cut, no grinding needed |
Key Takeaways
One Station, Two Lasers
A single LISHI mixing station fed both HAN'S 20kW lasers without performance loss. The one-to-two architecture eliminates the need for separate gas systems.
160% Throughput Gain
Daily output nearly tripled without adding machines, shifts, or floor space. The shop cleared a 3-week backlog in under 10 days after switchover.
HAN'S Fully Compatible
Plug-and-play with HAN'S laser systems. No modifications to laser optics, control system, or gas delivery — connects directly to existing inlets.
Running HAN'S lasers? See what mixed gas can do for your throughput.
Share your laser model, power, and typical material — we'll send you verified cutting parameters specific to your setup.
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