SRDK-408D-W71A
 | $12,000 | 60 day warranty
4 K cryocooler with 0.7 W cooling power at 4.2 K and CSW-71A water cooled compressor. Includes flexlines and a cable to connect the cold head to the compressor.
This is a unit that has been used for development projects at Janis and has some scratches and other cosmetic blemishes. Power requirements: 200 VAC, 3 phase, 50/60 Hz, 5.5 / 7.0 kW |
SHI-4-1
 | $25,850 | SPECIAL VALUE model SHI-4-1 optical cryostat system with sample in vacuum as shown in drawing D050306B featuring:
Temperature range: ~4.2 K - 300 K (four radiation shield ports covered)
< 5 K - 300 K (four radiation shield ports open)
Initial cooldown time: 90 minutes to 5 K
Cooling power: 0.1 watt at 4.2 K (2nd stage), 5 watts at 60 K (1st stage) (Bare cold head)
Power requirements: 100, 120, 230, 240 VAC, 1 Phase, 50/60 Hz, 1.2 kW
Compressor size: 385 mm x 529 mm x 610 mm high, 75 kg
Recommended maintenance interval: Cold Head: 10,000 hours, Compressor: 30,000 hours
Orientation: Free (Cooling Capacity Loss: maximum 30%)
(Specifications exclude radiational or experimental heat load, and are rated at 60 Hz)
The system includes: - RDK-101D two stage cold head and 3 meter flexlines;
- Cold head control cable (6 meter), wrenches, and operating manual;
- CNA-11C air-cooled compressor with full charge of high-purity helium gas;
- Cold finger with copper sample mount, 50 ohm control heater and provision for a temperature sensor;
- 2.13" O.D. Gold plated OFHC Copper optical radiation shield mounted on the first stage;
- 2.88" O.D. vacuum shroud with a 3.0" square window block and four (4) 1.50" diameter clear view, o-ring sealed, quartz windows;
- Instrumentation skirt with one (1) 10-pin electrical feedthrough for heater and temperature sensors,
three (3) blank feedthrough ports, an evacuation valve and a safety pressure relief valve; - Gold plated OFHC copper optical sample holder with provision for temperature sensor;
- One (1) standard curve silicon diode temperature sensor installed at the control heater;
- Aluminum mounting stand with four (4) support legs.
Lead time: 6 weeks ARO
This system will include a completely new SRDK-101D-A11C cryocooler. The cryostat parts that Janis installs on the RDK-101D cold head have been used as a trade show exhibit have some cosmetic imperfections. However, the system is fully functional and the overall system comes with a standard full 12 month warranty from Janis. |
SHI-4-5
 | $36,280 | SPECIAL VALUE Model SHI-4-5 optical cryostat system with sample in vacuum as shown in drawing D062402B featuring:
Temperature range: < 4.2 K - 300 K (four radiation shield ports covered)
< 5 K - 300 K (four radiation shield ports open)
Initial cooldown time: ~60 minutes to 5 K
Cooling power: 0.5 watt at 4.2 K (2nd stage), 4 watts at 50 K (1st stage) (Bare cold head)
Power requirements: 200 VAC, 3 phase, 50/60 Hz, 3.4 kW steady state
Cooling water requirements: ~3.3 liters/min @ 4-28 degrees C
Compressor size: 400 mm x 550 mm x 461 mm high, 70 kg
Recommended maintenance interval: Cold Head: 10,000 hours, Compressor: 20,000 hours
Orientation: Free (Cooling Capacity Loss: maximum 20%)
(Specifications exclude radiational or experimental heat load, and are rated at 60 Hz) The system includes: - RDK-205D two stage cold head and 10 meter flexlines;
- Cold head control cable (10 meter), wrenches, and operating manual;
- CKW-21A water-cooled compressor with full charge of high-purity helium gas;
- Cold finger with copper sample mount, 50 ohm wound control heater and provision for sensor;
- Optical radiation shield mounted on first stage;
- 3.0" square optical vacuum shroud with four (4) 1.5" diameter clear view o-ring sealed quartz windows;
- Instrumentation skirt with one (1) 10-pin electrical feedthrough for heater and temperature sensors, three (3) blank feedthrough ports, evacuation valve and safety pressure relief valve;
- Gold plated OFHC copper optical sample holder with provision for temperature sensor;
- One (1) standard curve silicon diode temperature sensor installed at the control heater;
- Mounting stand with four (4) support legs.
This system will include a completely new SRDK-205D-W21A cryocooler. The cryostat parts that Janis installs on the RDK-205D cold head are excess inventory and have slight cosmetic imperfections. However, the system is fully functional and the overall system comes with a standard full 12 month warranty from Janis. |
| VNF-XG   
| $4,000 | 6 month warranty Click here to download the VNF-XG mechanical drawing. (54 KB) PDF Optical liquid nitrogen cryostat with sample in static exchange gas and temperature range ~80 K - 300 K. Hold time between refills varies from 3 – 6 hours depending on operating conditions. This unit is excess inventory and includes: - 1.0" O.D. sample tube with evacuation valve, and safety pressure relief valve; with 0.75" diameter sample mount, 25 ohm control heater;
- Outer vacuum shroud with 10-pin electrical feedthrough for heater and sensor wires, evacuation valve, and safety pressure relief valve;
- 3.25" square window block, five (5) 1.25" diameter clear view o-ring sealed quartz windows;
- Five (5) 0.63” diameter clear view indium sealed blank ports on the sample tube;
- Adjustable sample positioner assembly allowing sample rotation and translation with one (1) 8-pin feedthrough for heater and temperature sensor on the sample mount, one (1) 10-pin feedthrough and two (2) blank ports and a sample mount with a 25 ohm heater and a temperature sensor;
- Gold plated OFHC copper optical sample holder with provision for temperature sensor;
- One (1) standard curve silicon diode thermometer installed at the control heater.
|