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Industrial Gas Equipment

Advanced Oxygen & Nitrogen Generators for Industrial Applications

Hangzhou Ourui Air Separation Equipment Co., Ltd. is a leading manufacturer of cryogenic air separation units, PSA/VPSA oxygen & nitrogen generators, LNG plants, and compressed air systems. With over 10 senior technicians and a 14,000 sqm modern workshop, we deliver ISO9001-certified solutions globally.

Explore Our Products

About OR-GAS

A trusted name in industrial gas generation with cutting-edge technology and global certifications.

Professional Manufacturer of Industrial Gas Equipment

Hangzhou Ourui Air Separation Equipment Co., Ltd. specializes in the design and manufacturing of cryogenic air separation units, VPSA oxygen devices, PSA nitrogen and oxygen systems, membrane separation equipment, and LNG liquefaction plants.

Our factory spans over 14,000 square meters and is equipped with advanced testing facilities. With more than 200 employees, including over 10 senior technicians, we ensure every product meets the highest standards.

  • ISO9001 Quality Management Certified
  • CE & ISO Certified Products
  • 10+ Senior R&D Engineers
  • 14,000㎡ Standard Workshop
Factory Interior Nitrogen Generator PSA System Industrial Setup

Our Industrial Gas Solutions

High-efficiency, customizable, and reliable gas generation equipment for diverse industries.

PSA Oxygen Machine

PSA Oxygen Machine

Industrial aquaculture oxygen production plant, combustion aid, cutting gas generation.

  • Application: Aquaculture, Sewage Treatment
  • Technology: Pressure Swing Adsorption
  • Certification: CE/ISO
LNG Plant

LNG Liquefaction Plant

Clean & sustainable LNG/LOG/LPG/CNG power plant for renewable energy.

  • Capacity: Up to 270,000 m³ storage
  • Efficiency: High thermal efficiency
  • Design: Skid-mounted or containerized
Nitrogen Generator

Industrial Nitrogen Generator

99.9% purity N2 generator for mining, fire suppression, and metal processing.

  • Purity: Up to 99.9%
  • Design: Durable, skid-mounted
  • Use Case: Heat treatment, inerting
Cryogenic Generator

Cryogenic Air Separation Unit

Low power consumption liquid oxygen/nitrogen/argon generator.

  • Output: Liquid O₂, N₂, Ar
  • Efficiency: Energy-saving design
  • Price: Competitive factory direct
Small Liquid Nitrogen Machine

Small Liquid Nitrogen Machine

Customizable 3–50L/day fully automatic liquid nitrogen production.

  • Capacity: 3–50L/day
  • Automation: Fully automatic
  • Use: Lab, medical, small industry
ASU Plant

KDON-200Y ASU Plant

High concentration pure oxygen supply and liquid oxygen plant.

  • Output: High-purity liquid oxygen
  • System: Complete turnkey solution
  • Application: Industrial, medical
LNG Vaporization Station

Industrial LNG Vaporization Station

Vacuum-insulated tanks with high efficiency and stable gas supply.

  • Tanks: Vacuum insulated
  • Supply: Stable, continuous
  • Use: Filling stations, power plants
Medical Oxygen Generator

Medical PSA Oxygen Generator

O₂ producing machine for hospital oxygen centers and medical use.

  • Compliance: Medical-grade standards
  • System: Includes control & filling
  • Certification: CE/ISO

Why Choose OR-GAS?

Engineered for performance, reliability, and sustainability.

Industrial-Grade Durability

Robust construction for continuous operation in harsh environments. Ideal for mining, energy, and manufacturing sectors.

Global Certifications

ISO9001, CE, and other international standards ensure quality, safety, and compliance across all our equipment.

Energy Efficiency

Low power consumption designs reduce operational costs and support sustainable industrial practices.

14,000+
Square Meters Workshop
10+
Senior Technicians
200+
Employees
50+
Countries Served

Frequently Asked Questions

What is a PSA nitrogen generator?

PSA (Pressure Swing Adsorption) nitrogen generators use carbon molecular sieves to separate nitrogen from compressed air, producing high-purity nitrogen gas for industrial use.

Can your LNG plants be customized?

Yes, we offer fully customizable LNG liquefaction and vaporization solutions tailored to your capacity, location, and operational needs.

Do you provide after-sales support?

Absolutely. We offer technical support, installation guidance, maintenance training, and spare parts supply worldwide.

Are your oxygen generators suitable for medical use?

Yes, our PSA oxygen generators are designed to meet medical-grade standards and are used in hospitals and healthcare centers.

Get in Touch

For inquiries, technical support, or custom solutions, reach out to us directly.

Phone: 0086 18758037220

Email: [email protected]

Address: Floor 1, No. 1, Wenzhou Changxia, Bashan Village, Fuchun Street, Fuyang District, Hangzhou City, Zhejiang Province, China

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