1. The site survey decides the price

Before any commercial commitment, the site must be surveyed for the physical route the magnet will travel. A magnet that cannot leave the building is worth nothing, however good its condition.

The survey records:

  • Magnet weight and dimensions with and without covers
  • The route from the magnet room to the loading point: door widths, corridor widths, turning radii, ceiling heights, floor loading along every metre of the route
  • Whether a wall or roof opening is required, and what it is made of
  • Lift capacity, or whether a crane is needed and where it can be positioned
  • Ground conditions and vehicle access at the loading point
  • Working hours restrictions, particularly in an operating hospital
  • The location of the quench pipe, chiller, cabinets and the technical room

Photographs and measurements at this stage prevent the two most expensive surprises: a route that does not work, and a crane that cannot be positioned.

2. Ramp-down and cryogen handling

A superconducting magnet must have its field removed before transport. This is done as a controlled ramp-down by a qualified engineer, in which the stored energy is dissipated in a managed way. The alternative — a quench — is an uncontrolled loss of superconductivity that boils off helium rapidly. A quench is sometimes used deliberately, but it is not the default and it has cost and safety implications.

Helium handling then follows. Depending on the plan, helium may be recovered, allowed to boil off through the quench pipe under controlled conditions, or the magnet may be transported cold. The choice affects cost at both ends:

  • Transported cold — heavier, requires monitoring and sometimes top-ups in transit, but faster and lower risk at the destination
  • Transported warm — lighter and cheaper to move, but requires a full cool-down and helium fill at the destination, which is a substantial cost

Helium is an asphyxiant in confined spaces. Cryogen work requires trained personnel, oxygen monitoring and a clear evacuation plan.

3. Technical deinstallation

Once the magnet is de-energised, the system is disconnected in a defined order: console and workstations, cabinets, gradient and RF amplifiers, cabling, chiller connections, cold head and compressor, patient table, covers. Components are labelled and their positions recorded so the system can be reassembled correctly. Cabling is coiled and tagged rather than cut, wherever practical.

4. Rigging and building works

The magnet is skated, jacked or craned along the surveyed route. Typical elements include air skates or rollers, steel plates to spread the load across floors, a temporary wall opening, and a crane lift onto the transport vehicle. Where a wall is opened, agree in advance who reinstates it, to what standard, and by when — this is a frequent source of dispute.

5. Crating and export packing

For international movement, the magnet and cabinets are crated to withstand handling, vibration and humidity. Sensitive assemblies — coils, consoles, electronics — are packed separately with shock protection. Where wooden packaging is used, it must comply with ISPM 15 for international shipments, meaning heat treatment or fumigation with the corresponding stamp. Shock and tilt indicators are commonly fitted to the magnet crate so mishandling in transit is evidenced.

6. Transport modes

ModeTypical useNotes
RoadWithin Europe and neighbouring regionsAir-ride suspension recommended; permits may be needed for weight or dimensions
SeaIntercontinental, cost-sensitiveLongest transit; humidity protection and secure blocking essential
AirUrgent or high-value movesExpensive; a cold magnet on an aircraft has additional handling requirements

7. Insurance and risk transfer

Agree the delivery term (Incoterms 2020) explicitly — EXW, FCA, CIP, DAP and DDP place very different obligations on each party. Insure for the full replacement value including deinstallation and reinstallation costs, not just the purchase price, and confirm that the policy covers rigging operations and not only the road or sea leg.

8. Documents

The exact list depends on origin, destination and route, but usually includes:

  • Commercial invoice and packing list
  • Bill of lading, air waybill or CMR
  • Certificate of origin where required
  • Customs tariff classification — MRI apparatus is normally classified under HS heading 9018.13
  • ISPM 15 evidence for wooden packaging
  • Insurance certificate
  • Manufacturer documentation, serial number and system label evidence
  • Any destination-country import authorisation for used medical devices

Confirm destination requirements before shipping. Several countries require prior registration or an import permit for used medical equipment, and clearing that after arrival is slow and expensive.

9. A realistic timeline

For a straightforward European move with a clear rigging route, plan for a site survey, then a deinstallation window of several days on site, then transport time by mode. Where a wall opening, crane, out-of-hours working or an operating hospital is involved, the coordination — not the physical work — sets the schedule. Build contingency into any date promised to a clinical department.

Quick summary

  • Survey the route out before agreeing a price
  • Decide cold or warm transport early — it changes cost at both ends
  • Use a controlled ramp-down, not a quench, unless there is a specific reason
  • Agree who reinstates any building opening, to what standard
  • Fix Incoterms and insure for replacement value including rigging
  • Check destination import rules for used medical devices before shipping

Frequently asked questions

Can an MRI magnet be transported while still cold?

Yes, and it is common. A cold magnet is heavier and needs monitoring, and sometimes helium top-ups, during transit, but it avoids a full cool-down and helium fill at the destination. The alternative is to let the magnet go warm, which is cheaper to move but adds a substantial recommissioning cost at the other end. The right choice depends on distance, route and the destination schedule.

What is the difference between a ramp-down and a quench?

A ramp-down is the controlled removal of the magnetic field by a qualified engineer, dissipating the stored energy in a managed way. A quench is an uncontrolled loss of superconductivity that boils off helium rapidly and vents it through the quench pipe. Ramp-down is the normal, planned procedure; a quench is used deliberately only in specific circumstances and has cost and safety consequences.

How long does it take to deinstall an MRI scanner?

For a straightforward site with a clear rigging route, the on-site work is typically measured in days rather than weeks. What extends the schedule is coordination rather than labour: crane permits, out-of-hours access in an operating hospital, wall openings and reinstatement, and waiting for a transport slot. Always survey first, then schedule.

What customs code applies to an MRI scanner?

MRI apparatus is normally classified under HS heading 9018.13, and CT apparatus under 9022.12. Local tariff codes extend these headings with further digits, and duty treatment for used medical equipment varies by country, so confirm classification and duty with a customs broker at the destination before shipping.

Related guides

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Published 2026-08-12 by Radiology Invest Group, Bucharest, Romania. General information for planning purposes; always confirm requirements against the equipment manufacturer's documentation and the applicable authority at your destination.