Technical advantages

6th generation Permanent MRI based on over 30 years’ experience;

New technology enhances the scanning speed, provide a fresh impression of permanent MRI;

More advanced functions, Expand your daily clinical applications;

Compact design ensures the comfort of patients and operators;

Fully meet your clinical needs, with 20% operating cost of superconducting MRI.

Large openness structure

A good product must always put patient’s comforts priority. OPENMARK 4000 is coupled with a 320° large openness magnet, offering a maximum comfort for patients, especially for obese patients, claustrophobic patients, and children.

Unique shimming technology

Homogeneity of the main magnetic field is the basis of MR imaging. A good magnetic field homogeneity helps to realize a wide range of abdominal scanning and off-center joints scanning.

Intelligent temperature control system

Permanent magnet is very sensitive to temperature draft. OPENMARK 4000 is equipped with a intelligent temperature control system, to keep the magnet in a constant temperature, which will ensure a high stability of magnetic field.

Magnet type

Permanent

Magnetic field strength

0.38T ± 5%

Magnet appearance

C-shape

Weight

16.6T ± 1.5%

Horizontal opening angle

320°

5 Gaussian fringe field

X, Y, Z directions ≤ 2.5m

Shielding methods

Passive Shimming Active Shimming

Magnetic field homogeneity

≤ 2.0 ppm @ 40cm DSV (VRMS)

Max. amplitude (single axis)

28mT/m

Max. slew rate (single axis)

93T/m/s

Min. rise time

0.3ms

Gradient amplifier cooling type

Air cooling

Gradient coil cooling type

Air cooling