Two-stage pulse tube cryocooler
RP-062B (0.5 W at 4.2 K) and RP-082B (1.0 W at 4.2 K)
Sumitomo Heavy Industries has expanded its product line yet again with the addition of a two-stage pulse tube cooler. With a base temperature of below 3.0 K, this new product extends the range of possible applications for Sumitomo closed-cycle refrigerators to include low-temperature, low-vibration applications. The pulse tube cooler has no internal moving parts; therefore, it has inherently low vibration levels.
Standard configuration
Characteristics:
- Refrigeration capacity: 0.5 W at 4.2 K (RP-062B); 1.0 W at 4.2 K (RP-082B)
- Orientation: vertical only
- Push-button operation
Applications:
- Laboratory cryostats
- Cryogenic property measurements
- Optical studies
- Magnetic studies
- Low-vibration
Two-stage pulse tube cryocooler specifications
| RP-062B | RP-082B | |
| Refrigeration cycle | Pulse tube (2-stage) | Pulse tube (2-stage) |
| Refrigeration capacity (vertical position) | 1st stage: 30 W at 65 K (50/60 Hz) 2nd stage: 0.5 W at 4.2 K (50/60 Hz) | 1st stage: 40 W at 45 K (50/60 Hz) 2nd stage: 1.0 W at 4.2 K (50/60 Hz) |
| Orientation | Vertical only | Vertical only |
| Lowest temperature | <3.0 K | <3.0 K |
| Vibration level | ±4 µm at 2nd stage flange | 1st stage: ±7 µm; 2nd stage: ±9 µm |
| Weight | 23.2 kg | 26 kg |
| Cold head dimensions (mm)—approximate | 336 W × 190 L × 604 H | 190 W × 347 L × 581 H |
| Cooldown time (to 4.2 K) | <100/90 min (50/60 Hz) | <80 min (50/60 Hz) |
| Maintenance | Every 20,000 h | Every 20,000 h |
| Compatible compressor unit model | F-50 | F-70 |
| Flexline length | 20 m* | 20 m* |
| Flexline weight | 7.5 kg per line | 7.5 kg per line |
| *Buffer tanks + 6 m lines may optionally be substituted for the 20 m long lines. 6 m lines weigh 5 kg per line. | ||
Specifications subject to change without notice.
Download the Sumitomo's SRP-062B Pulse Tube Datasheet