Unlike mechanically driven GM refrigerators, the cold storage material does not reciprocate in the cylinder, so it has the advantage of less vibration during operation. In addition, the cold storage material is fixed, the low temperature part has no moving parts, so the service life is long. Mainly used for high sensitivity analyzer which does not like vibration.
1 Low vibration
2 Longevity
3 The movable part (valve group) can be separated and operated at room temperature