Air Separation Plants

Cryogenic Air Separation Technology for High-Purity Oxygen, Nitrogen & Argon

SIAD designs and manufactures a full line of custom-engineered and standard-design air separation units (ASUs) that produce high-purity medical- and industrial-grade oxygen, nitrogen, and argon through the cryogenic distillation of atmospheric air. Backed by nearly a century of cryogenic process equipment expertise, SIAD has delivered over 500 ASU installations worldwide, serving industries including electronics, chemicals, petrochemicals, food and beverage, steel, glass manufacturing, pulp and paper, and industrial gases (SIAD Americas).

Product Line:
Custom-Engineered Gas Plants
Merchant Liquid Plants
Nitrogen Gas Generators
Oxygen/Nitrogen Liquefiers

SIAD's ASUs are built around three core design pillars (SIAD Americas):

1. Ultra-high efficiency process design — engineered to minimize power consumption and operating cost.

2. Advanced PLC-based plant control with operator-friendly HMI — supports unattended operation, remote monitoring, and remote control.

3. Modular plant design — highly modularized construction shortens installation and commissioning time and reduces total installed cost, with each module delivered assembled and installation-ready.

SIAD's air separation plants serve a broad industrial base, including cement, chemicals, energy and power generation, exploration and production, electronics, oil and gas well services, food and beverage, industrial and medical gases, glass, metals, petrochemicals, pulp and paper, renewable energy, and steel.