Level 3, 239 Adelaide Terrace, Perth WA 6000
Home  /  Products  /  Cryogenic Cylinders

Cryogenic Dewar Cylinders

Dewar cylinders and speed tanks — hundreds of thousands delivered worldwide.

Cryogenic Cylinders

AMG's cryogenic and low-temperature dewar cylinders and speed tanks incorporate advanced, superior insulation to ensure minimal heat transfer and optimal thermal performance. Engineered for safety and efficiency, they meet stringent global standards for critical industrial applications.

With hundreds of thousands of units delivered worldwide, our range spans compact portable dewars through to high-capacity horizontal cylinders and high-flow speed tanks.

Key features

  • Capacities from 80L to 1000L and beyond
  • Vertical and horizontal configurations
  • LO₂ / LN₂ / LAr / LNG / LCO₂ service
  • High-flow speed tanks
  • ASME U-stamp options
  • Long vacuum-retention life

Typical applications

  • Industrial and medical gas supply
  • On-site LNG for equipment and vehicles
  • Food-grade LCO₂
  • Laboratory, welding and electronics gases

80L – 1000L+

Cylinder range

Dewars & speed tanks

Product types

ASME U-stamp

Certified options

Specifications

Cryogenic Dewar Cylinder — typical configuration
Capacity range80L to 1000L and beyond
OrientationVertical and horizontal configurations
Product typesDewar cylinders and high-flow speed tanks
ServiceLO₂ · LN₂ · LAr · LNG · LCO₂
CertificationASME U-stamp options
InsulationAdvanced insulation; long vacuum-retention life
StandardsASME (with U-stamp) · AS · DOT / TC
Track recordHundreds of thousands of units delivered worldwide

Configurations are engineered to project requirements. Talk to us about duty, commodity and site conditions and we will confirm the specification for your application.

Frequently asked questions

What is the difference between a dewar cylinder and a speed tank?

Both are vacuum-insulated vessels. A speed tank is configured for high flow — it delivers product faster, which matters when you are filling equipment or vehicles and dwell time is the constraint. A standard dewar prioritises storage duty and hold time.

What sizes are available?

From compact 80L portable dewars through to 1000L and larger horizontal cylinders, in both vertical and horizontal configurations.

What does an ASME U-stamp mean?

The U-stamp certifies that the vessel was designed, fabricated and inspected under ASME Section VIII Division 1 by an accredited manufacturer. Many industrial and medical gas users specify it, and it is available as an option across our range.

How long will the vacuum last?

Our cylinders are built for long vacuum-retention life, which is the single biggest factor in whether a dewar stays economic over its service life. A vessel that loses vacuum loses product continuously and has to be re-evacuated or replaced.

Can they be used for food-grade CO₂?

Yes. Food-grade LCO₂ is a standard application, alongside industrial and medical gas supply, on-site LNG, and laboratory, welding and electronics gases.

Explore more

Related products

Have a project in mind?

Engage AMG early — from concept and feasibility to delivery and commissioning — and turn a complex gas challenge into a reliable, sustainable solution.