HE-01 · Core Supply Line
Liquid Helium. Dewar to Magnet.
Cryogenic LHe supplied in electrically-heated dewars, sized and adapted for MRI, NMR and research cooldowns — with door delivery built around the equipment that can’t wait.
99.999%
−269°C
Boiling Point
400 / 250 / 100L
3 Sets
What We Supply
Liquid helium, handled the way cryogens should be
Liquid helium is the standard cooling medium for superconducting MRI and NMR magnets, holding coil temperatures near absolute zero so the magnet can stay superconducting. At that temperature, small handling errors — a slow delivery, a poor-fitting adaptor, an under-insulated dewar — translate directly into boil-off and cost.
Xpress Helium supplies LHe exclusively in purpose-built cryogenic dewars, each fitted with an electrical heater to manage internal pressure during transit and standing time. Every delivery arrives with three sets of brass adaptors, covering the common connection types across MRI and NMR systems, so transfer can begin without a parts delay.
We size the dewar to the application rather than defaulting to one format — a 100L dewar for NMR applications, a 250L dewar for routine MRI top-ups, and a 400L dewar for MRI pre-cooling and new magnet installations. This application-based approach ensures the right capacity for each job while optimizing helium handling, logistics, and operational efficiency.
At a Glance
- Product
- Liquid Helium (LHe)
- Boiling point
- −269°C / 4.2 K
- Container
- Insulated cryogenic dewar
- Heater
- Electrical, fitted as standard
- Adaptors
- 3 sets, brass, MRI/NMR compatible
- Delivery
- Door delivery, pan-India network
Dewar Sizes
4 dewars, sized to the job
All three sizes ship with an electrical heater and the same three-adaptor-set standard, so the only real decision is volume.
400L Dewar
Full magnet fills & multi-site rounds
- Best fit for new magnet cooldowns
- Lowest cost per litre delivered
- Trolley-mounted for site handling
250L Dewar
Scheduled service & planned top-ups
- Matches most routine refill cycles
- Common choice for AMC visits
- Easier single-site logistics
100L Dewar
Small top-ups & research use
- Fastest to move on-site
- Fits smaller labs & NMR units
- Lower minimum order quantity
Purity & Quality
Grade matters as much as volume
Helium purity is read as the number of “nines” after the decimal — each additional nine strips out more residual moisture, nitrogen and other trace gases. We supply against both grades below, matched to what the equipment actually requires.
5.0
Standard Purity — 99.999%
Suitable for most MRI and NMR magnet cooling, general cryogenic use, and industrial applications where trace-level contaminants aren't process-critical.
6.0
Ultra-High Purity — 99.9999%
Used for research instrumentation, calibration standards and sensitive laboratory work where residual moisture or nitrogen can affect results.
≤1 ppm total impurities
Applications
Where our liquid helium is used
Most of our volume goes to medical imaging, but the same dewars and purity grades serve research and industrial cryogenics.
MRI/NMR MAGNETS
Cooldown and top-up of superconducting MRI coils to maintain imaging-ready temperatures.
NMR Spectroscopy
Stable, high-purity cooling for NMR units used in chemical and pharmaceutical analysis.
Research Cryogenics
Low-temperature physics, materials testing and instrument calibration in academic and industrial labs.
Industrial Cryogenics
Leak testing, welding shielding, and other low-temperature industrial processes.
Delivery
How liquid helium reaches you
DELIVERY MODE — LIQUID HELIUM
Source to Site
01
Scheduled Delivery
Booked in advance against a known boil-off rate or planned service window — our standard delivery format.
02
Emergency Dispatch
Rapid turnaround when a magnet drops below safe level, drawn from our standing dewar stock.
03
Rental Dewar Return
Empty dewars collected on the next visit or a scheduled pickup, so sites don't hold cryogenic stock long-term.
Handled by people who understand cryogens
Liquid helium is extremely cold, expands roughly 700 times in volume as it warms to gas, and needs proper ventilation and pressure management throughout transfer. Our delivery and transfer teams are trained specifically on cryogenic handling — not general industrial gas — before they touch a dewar on your site.
- Trained transfer technicians on every delivery
- Electrical heaters fitted to manage transit pressure
- Calibrated transfer lines for controlled fills
- Dewars tested and inspected on a regular cycle
Ready to book a liquid helium delivery?
Tell us your dewar size, magnet model, or delivery timeline — we’ll size the order and confirm a quote same day.