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Laser Auxiliary Systems

Laser Cutting Auxiliary Gas Mixing System

3 Gases

Mixable Inputs

0.5–25 bar

Pressure Range

±1%

Mixing Accuracy

Auto

Recipe Switching

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.

Manual gas changeover downtime: Switching between oxygen, nitrogen, and air manually requires adjusting multiple regulators and purging gas lines. An automated gas mixing system performs this changeover in under 30 seconds via recipe selection on the machine HMI.

Inconsistent gas pressure and flow: Manual regulator adjustments are imprecise and vary between operators. Inconsistent assist gas pressure directly affects cut quality - too low causes dross and incomplete cuts, too high wastes gas and can distort thin material. Electronic pressure regulation maintains exact setpoints automatically.

Optimizing gas costs across materials: Different materials and thicknesses require different gas types and pressures for optimal results. A programmable gas mixing system stores cutting recipes with the correct gas type, pressure, and flow rate for each material, eliminating trial-and-error gas setup and reducing gas waste.

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

Multi-gas input with electronic switching - The system accepts up to three gas inputs (O2, N2, air) with solenoid-valve selection. Gas switching takes under 30 seconds and is triggered automatically by the cutting recipe - no manual regulator adjustment or line purging required. Each gas input has its own pressure regulator and safety shutoff valve.

Electronic mass flow control - Digital mass flow controllers regulate gas flow to the cutting head with ±1% accuracy across the full flow range. The system maintains constant pressure regardless of inlet pressure fluctuations, ensuring consistent cutting conditions throughout the gas cylinder or supply tank life.

Recipe-based gas parameter storage - Cutting recipes stored in the machine controller include gas type, pressure, and flow rate for each material and thickness. When the operator selects a recipe, the gas mixing system automatically configures the correct parameters, eliminating setup errors and material waste from incorrect gas settings.

Gas consumption monitoring and reporting - The system tracks gas consumption per cutting job and per shift, providing data for cost allocation and gas supply planning. Low-pressure alarms alert the operator when a gas cylinder or supply is nearing depletion, preventing mid-cut gas failure that can ruin a part.

Safety interlock and leak detection - The system includes gas leak detection sensors in the gas cabinet and automatic shutoff valves that activate on leak detection or power loss. The oxygen line includes a flashback arrestor. All gas plumbing uses stainless steel tubing with Swagelok-type fittings for industrial reliability.

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.

Request a Quote

27:T3478,

Laser Auxiliary Systems

Laser Cutting Auxiliary Gas Mixing System

3 Gases

Mixable Inputs

0.5–25 bar

Pressure Range

±1%

Mixing Accuracy

Auto

Recipe Switching

Why Gas Mixing Control Matters

Product Overview

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?

How does the system integrate with a Xinhong PSA nitrogen generator?

Can I mix nitrogen and oxygen for specific cutting applications?

How accurate is the gas pressure and flow control?

What safety features are included?

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.

Request a Quote

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