Liquid nitrogen cryostat Liquid Nitrogen Cryostat - Atmosphere Type

vacuum

Overview
The atmosphere-type liquid nitrogen cryostat cools samples inside a static helium atmosphere. The top-loading configuration enables rapid sample exchange and delivers uniform cooling for samples with poor thermal conductivity or irregular geometries. The system offers customization options to meet specific experimental requirements.

Features

• Funnel attachment for rapid liquid cryogen refill.
• Top-loading design allowing fast replacement of samples.
• Built-in charcoal to improve vacuum performance.
• Customizable according to customer requirements.
• Equipped with 8 measuring leads as standard; expandable capability indicated on the product page.

Technical specifications

• Temperature range: 80 K–500 K (65 K requires additional decompression accessories).
• Cooling time (room temperature → 80 K): about 1 h.
• Electrical connector: Standard configuration is an 8-pin electrical measurement connector.
• Thermometer: 2 PT100 thermometers (one on the heat exchanger and one on the sample holder).
• Temperature stability: ±0.01 K (depends on temperature controller).
• Heater: 2 × 50 W heaters.
• Vacuum interface: Two KF25 standard interfaces.
• Sample rotation angle: Samples can be rotated 360 degrees.
• Sample environment: Helium environment (static helium atmosphere for sample cooling).
• Required vacuum degree: The vacuum degree of the sandwich layer and the vacuum degree of the sample cavity are ≤ 1 Pa.
• Liquid nitrogen holding time: 78 K @ 4 h; 100 K @ 3.5 h; 200 K @ 2 h; 300 K @ 1 h.
• Liquid nitrogen chamber volume: About 1.6 L.
• Window materials (customizable size/materials): fused quartz, infrared silicon, sapphire, zinc selenide, zinc sulfide, cadmium telluride, germanium, silicon, cadmium fluoride, Mylar, Kapton, beryllium, etc.
• Selection instructions: Mainly suitable for testing liquids, powders, samples with poor thermal conductivity and irregular shapes.