Professional Refurbished Air Separation Units (ASU): 1000 - 20,000 Nm³/h High-Purity Solutions

Xi’an Juxinde offers a comprehensive range of certified refurbished Air Separation Units, including Liquid and Gaseous oxygen/nitrogen plants. We specialize in capacities from 1,000 to 20,000 Nm³/h, providing energy-efficient, stable, and cost-effective gas production solutions for metallurgy, chemical, and medical industries globally. Secure your gas supply with zero lead time.

Industrial Liquid & Gaseous Oxygen/Nitrogen Plants

Browse our current stock of certified refurbished ASU plants. From compact 1,000 Nm³/h gaseous systems to large-scale 20,000 Nm³/h liquid cryogenic plants, every unit is factory-inspected for cryogenic purity and flow stability. We offer customized engineering matches to meet your specific industrial gas requirements with zero lead time.

KDON(Ar)-1800Y/300Y/50Y Cryogenic Air Separation Unit (ASU): Expert in High-Purity Industrial Gas Production

Nameplate & Docs Check

100% Authenticity Verification: We verify original design parameters and maintenance logs to ensure transparent sourcing and reliable performance data for every ASU.

Condition Inspection

Full System Diagnostic: Deep inspection of turbine expanders, air compressors, and molecular sieve purifiers to ensure every mechanical component meets “as-new” standards.

Professional Refurbishment

Core System Upgrades: Including high-precision rotor dynamic balancing, heat exchanger cleaning, and latest-gen PLC control system digital upgrades.

Performance Testing

Cryogenic Simulation: Full-load simulation testing with detailed purity (99.6% O2 / 99.999% N2) and flow-rate verification reports provided before shipping.

Global Export Delivery

Turnkey Logistics: Specialized vacuum packaging for cold boxes and nitrogen-filled transport for compressors, ensuring safe delivery to Uzbekistan, Kazakhstan, and Africa.

Common Inquiries & Expert Insights

Why choose a refurbished ASU over a new one?

Price and Time. A refurbished ASU from Juxinde costs 40-60% less than a new one and is ready for immediate shipping, saving you the 12-18 month lead time typical of new factory orders.

Can you provide both Liquid and Gas output models?

Every unit undergoes a rigorous 21-step restoration, including molecular sieve replacement and turbine balancing. We guarantee medical/industrial grade purity (up to 99.999% N2) and provide a 12-month performance warranty to ensure your plant operates as reliably as a new machine.

Request a Customized Quotation & Stock Match

Provide your technical requirements below, and our engineering team will match the best available assets for you within 24 hours.