DP GROUP, founded in 2016, offer professional laser solutions and sheet metal fabrication machinery. Headquartered in Hong Kong, we operate three factories in mainland China:
DPMach (Dongguan): Specializes in laser cutting, welding, and marking.
DGDY (Dongguan): Focuses on press brake machines with advanced Panel Bender technology.
DPQG (Foshan): Manufactures large tube laser cutting machines for pipes up to 800mm in diameter and 30 meters lenth.

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40NL/min 95%-99.999% Nitrogen Gas Generators for Laser Welding with PLC Control

ZHN-02S Industrial Nitrogen Generator for 1 laser welding machines
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  • ZHN-02S

Nitrogen Generation System for Laser Welding

激光焊接ZHN-02-PLC-01

High Purity • High Stability • Intelligent Control

Our ZHN Series Nitrogen Generators are specially designed for laser welding applications, providing stable, high-purity nitrogen with precise flow control. Built with advanced PSA (Pressure Swing Adsorption) technology, intelligent PLC control, and robust filtration, they ensure consistent protection of weld seams, oxidation prevention, and improved welding quality.


Key Features

  • High Purity Output: Adjustable nitrogen purity from 95% to 99.999% to suit various welding needs.

  • Steady Flow Rate: Multiple models available — 20 NL/min, 40 NL/min, 60 NL/min — to match different production capacities.

  • Intelligent PLC Control: Integrated 7-inch touch screen with multi-language support for easy operation.

  • Standard Triple Filtration System: Ensures ultra-clean nitrogen output by removing oil, dust, and moisture.

  • Automatic Drainage: Reduces manual maintenance and prolongs equipment lifespan.

  • Compact Design: Space-saving vertical structure, ideal for workshop environments.

  • Global Power Compatibility: AC 100–250 V, 50/60 Hz.


Applications in Laser Welding

  • Protective Atmosphere: Nitrogen shields the molten pool, preventing oxidation and discoloration.

  • Welding Quality Enhancement: Improves seam smoothness and strength.

  • Versatile Use: Compatible with handheld and automated laser welding machines in industries such as stainless steel fabrication, electronics, and precision instruments.


Electrical Parameters & Technical Specifications

Model Nitrogen Flow Rate Nitrogen Purity Intake Pressure Nitrogen Pressure Air:N₂ Ratio Power Voltage & Frequency Rated Intake Weight (kg) Dimensions (mm)
ZHN-01S 20 NL/min 95%–99.999% 0.6–0.8 MPa 0.5–0.8 MPa 6.4 : 1 56 W AC 100–250 V, 50/60 Hz 3 m³/min 113.2 500×600×1090
ZHN-02S 40 NL/min 95%–99.999% 0.6–0.8 MPa 0.5–0.8 MPa 5.6 : 1 66 W AC 100–250 V, 50/60 Hz 3 m³/min 122.5 500×600×1000
ZHN-03S 60 NL/min 95%–99.999% 0.6–0.8 MPa 0.5–0.8 MPa 5.9 : 1 70 W AC 100–250 V, 50/60 Hz 3 m³/min 150.5 580×590×1310

Model Diagram & Welding Effect

  • Model Diagram: Shows internal PSA adsorption columns, filtration system, and PLC control interface.

  • Welding Effect: Achieves bright, smooth, and oxidation-free weld seams, suitable for high-end manufacturing standards.

ZHN-01-02-03S


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DP GROUP, founded in 2016, offer professional laser solutions and sheet metal fabrication machinery. Headquartered in Hong Kong, we operate three factories in mainland China:
DPMach (Dongguan): Specializes in laser cutting, welding, and marking.
DGDY (Dongguan): Focuses on press brake machines with advanced Panel Bender technology.
DPQG (Foshan): Manufactures large tube laser cutting machines for pipes up to 800mm in diameter and 30 meters lenth.
We offer comprehensive OEM/ODM services and spare parts for diverse industries. Our R&D team of over 50 experts ensures cutting-edge innovations, while our international support team of 21 professionals provides global service.

 

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