cryogenic dewar cylinders

DSW Dewar Cylinder

DSW supplies dewar cylinders and cryogenic tanks to safely contain liquefied gases such as nitrogen, oxygen, argon, and carbon dioxide.
These gases are stored at extremely low temperatures and in a liquid state.
A dewar container—sometimes called a dewar flask or dewar—is a vessel with a vacuum space between a cold liquid and the outside walls of the vessel.

DSW Industry manufactures precision-engineered Dewar Cylinders and insulated cryogenic cylinders designed to maintain extremely low temperatures for gases such as liquid nitrogen (LN2), liquid oxygen (LOX), argon (LAr), and carbon dioxide (CO₂). These welded insulated cryogenic cylinders are ideal for laboratory, medical, industrial, and research applications, providing safe, reliable, and long-lasting cryogenic storage.

With advanced vacuum insulation and rigorous production standards, DSW Industry Dewar Cylinders reduce boil-off, maintain gas purity, and ensure operational safety for your most critical applications.

DSW Industry Dewar Cylinder and insulated cryogenic cylinder for LN2, LOX, LAr, and CO2 storage
DSW Industry precision-engineered Dewar Cylinders for safe and reliable cryogenic storage.

Key Features

Advanced Vacuum Insulation

  • High-quality vacuum-insulated vessel design to minimise heat transfer
  • Outstanding thermal retention for prolonged cryogenic liquid storage
  • Reduces liquid boil-off and enhances overall efficiency

Safe and Durable Construction

  • Manufactured to stringent safety standards for cryogenic equipment
  • Robust steel and aluminium construction for lasting performance
  • Designed for use in both indoor and outdoor environments

Wide Range of Cryogenic Gases

  • Suitable for liquid nitrogen cylinders (LN2)
  • Available for oxygen dewar cylinders (LOX)
  • Configurable for argon dewar cylinders (LAr)
  • Custom sizes available upon request

Portable and Easy to Handle

  • Offered in portable dewar cylinder formats
  • Ergonomically designed for convenient transport
  • Ideal for laboratories, hospitals, and industrial facilities

Dewar Size Chart

welded Insulated cryogenic liquid container dewar cylinder

welded Insulated cryogenic liquid container, dewar cylinder

welded Insulated cryogenic liquid container, dewar cylinder

welded Insulated cryogenic liquid container, dewar cylinder

Applications

  • Laboratories & Research – Safe LN2 storage for experiments and sample preservation
  • Medical & Healthcare – Cryogenic cooling and storage of medical gases
  • Industrial Gas Supply – Bulk and portable storage solutions for oxygen, nitrogen, and argon
  • Cryogenic Processing & Manufacturing – Reliable, low-loss liquid gas storage

Inspection Guarantee

Our Dewar Cylinders are subjected to rigorous testing and inspection:

  • Welding Seams – 100% RT & PT non-destructive testing
  • Strength Testing – High-purity nitrogen up to 99.999%
  • Leak Detection – Advanced helium mass spectrometer testing
  • Inner Container Cleanliness – Passivation, pickling, UV inspection
  • Assembly – Inner & outer containers assembled within 2.5 hours
  • Interlayer Insulation – Special treated high-quality perlite
  • Final Protection – Nitrogen filling at 0.2MPa to protect tanks

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