Laser Cutting Auxiliary Gas Mixing System
Programmable gas mixing system for fiber laser cutting. 3-gas input (O2/N2/air), electronic mass flow control ±1% accuracy, recipe-based automatic switching, gas consumption monitoring. Integrates with CypCut and Schneider Electric PLC.
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Laser Cutting Auxiliary Gas Mixing System
Why Gas Mixing Control Matters
The assist gas used in fiber laser cutting directly determines cutting speed, edge quality, and operating cost. Oxygen produces an exothermic reaction that accelerates cutting on carbon steel but leaves oxidized edges. Nitrogen produces oxide-free edges on stainless steel and aluminum but requires higher pressure and flow. Air is the lowest-cost option for thin sheet but offers limited speed on thicker materials. Many fabrication shops switch between these gases multiple times per day - and each manual gas changeover involves adjusting regulators, purging lines, and recalibrating flow rates, costing 10–20 minutes of production time per switch.
Product Overview
This laser cutting auxiliary gas mixing system provides programmable control of assist gas delivery for fiber laser cutting machines. The system accepts up to three gas inputs - typically oxygen, nitrogen, and compressed air - and uses electronic mass flow controllers and pressure regulators to deliver the correct gas mixture and pressure to the cutting head according to the active cutting recipe. The system integrates with the cutting machine's Schneider Electric PLC and CypCut software, so gas type and pressure are automatically selected when the operator loads a cutting program for a specific material and thickness.
Core Features & Advantages
Technical Specifications
| Parameter | Value |
|---|---|
| Gas Input Channels | 3 (configurable: O2 / N2 / Air) |
| Pressure Range | 0.5–25 bar (adjustable per channel) |
| Flow Control Accuracy | ±1% of setpoint |
| Gas Switching Time | ≤ 30 seconds (recipe-triggered) |
| Flow Range | 0–300 L/min (model-dependent) |
| Pressure Regulation | Electronic pressure regulator per channel |
| Flow Measurement | Thermal mass flow controller |
| Recipe Storage | Unlimited recipes in machine controller |
| Gas Monitoring | Per-job and per-shift consumption logging |
| Safety Devices | Leak detection sensor, auto shutoff valves, O2 flashback arrestor |
| Control System | Schneider Electric PLC, integrated with CypCut |
| Communication | RS485 / Ethernet to machine controller |
| Gas Tubing | Stainless steel, Swagelok-type fittings |
| Power Supply | 24V DC (from machine supply) |
| Compatible Machines | Xinhong 2,000W–30,000W fiber laser cutting machines |
Application Industries
This gas mixing system is valuable for any fabrication shop that processes multiple materials and switches assist gases regularly:
- Job shops with mixed materials – Switching between carbon steel (O2), stainless steel (N2), and thin sheet (air) multiple times per day
- Stainless steel processing – Precise nitrogen pressure control for oxide-free cutting on food-grade and decorative applications
- Automotive parts manufacturing – Recipe-based gas selection for different component materials and thicknesses
- Aerospace and aluminum cutting – High-pressure nitrogen delivery for clean-edge cutting of aluminum alloys
- Cost-optimized production – Gas consumption tracking and air-cutting recipes for thin sheet to reduce nitrogen costs
Why Choose Xinhong
- Integrated with Xinhong laser machines – Because Xinhong manufactures fiber laser cutting machines from 2,000W to 30,000W, the gas mixing system is designed to match the gas delivery requirements of each machine model and cutting power range. Integration with CypCut software is seamless.
- Complementary to Xinhong PSA nitrogen generators – Xinhong also manufactures PSA nitrogen generators for on-site nitrogen production. The gas mixing system can integrate directly with a Xinhong PSA generator, providing a complete assist gas supply solution from a single manufacturer.
- Schneider Electric control components – Consistent with Xinhong's product line, the PLC and safety components use Schneider Electric for CE/UL compliance.
- Established manufacturer since 2005 – Shandong Xinhong CNC Technology Co., Ltd. operates under ISO 9001:2015 quality management certification.
FAQ
Can this gas mixing system be retrofitted to my existing Xinhong laser cutting machine?
Yes, the system can be retrofitted to most Xinhong fiber laser cutting machines. The installation requires connecting the gas inputs to the existing gas supply lines and integrating the PLC communication. Share your machine model and current gas supply configuration, and we will confirm compatibility.
How does the system integrate with a Xinhong PSA nitrogen generator?
The gas mixing system accepts the PSA generator's nitrogen output as one of its three gas inputs. The system's pressure regulator conditions the generator output to the precise pressure required by the cutting head. This eliminates the need for a separate nitrogen pressure regulator between the generator and the machine.
Can I mix nitrogen and oxygen for specific cutting applications?
Yes, the system supports gas mixing ratios beyond simple single-gas selection. For example, a low-percentage oxygen blend with nitrogen can be used for specific carbon steel applications where controlled oxidation improves cutting speed. The mixing ratio is programmable per recipe. Contact us to discuss your specific application requirements.
How accurate is the gas pressure and flow control?
The electronic mass flow controllers regulate gas flow to ±1% of the setpoint. Pressure is regulated electronically with a feedback sensor that adjusts in real time to maintain the setpoint regardless of inlet pressure variations or gas supply depletion.
What safety features are included?
The system includes gas leak detection sensors in the gas cabinet, automatic shutoff valves on each gas line that activate on leak detection or power loss, an oxygen flashback arrestor on the O2 line, and pressure relief valves on each channel. All safety interlocks are integrated with the machine PLC.
Optimize Your Assist Gas Control
Tell us your laser machine model, the gases you currently use, and your typical material mix - we'll configure the right gas mixing system for your cutting operations.
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