Worthington LABS20K-CS LN2 Cryogenic Freezer 20K CS200 Controller 18 Racks

Worthington LABS20K-CS LN2 Cryogenic Freezer 20K CS200 Controller 18 Racks

The Worthington Industries LABS20K-CS is a large-capacity liquid nitrogen cryogenic freezer designed for long-term biological sample storage in laboratory and biorepository environments. It uses a single pivot-point aluminum turntable system that allows access to all storage positions without reaching across the tank, and can store samples in either liquid phase or vapor phase LN2. The included CS200 Cryogenic Controller monitors and manages both LN2 levels and vapor temperature automatically.

Specifications & What's Included

• Model: LABS20K-CS (Worthington Industries)
• Serial No.: 84887 (see label photo)
• Storage capacity: approximately 20,000 vials (nominal)
• Storage mode: liquid phase or vapor phase LN2
• Controller: CS200 Cryogenic Controller (LN2 level monitoring and vapor temperature control)
• Temperature resolution: 0.1°C (thermocouple)
• Level measurement: discrete thermistor sensing
• Design temperature: –320°F
• Relief valve setting: 5 PSIG
• LN2 supply line inspection date: 2019 (Midwest Cryogenics label visible in photos)
• Turntable: single pivot-point aluminum, segmented and labeled for inventory management
• Lid: hinged with locking capability; activates automatic defog for interior viewing
• Table top: stainless steel; covers and protects electrical and plumbing components
• Exterior construction: stainless steel tank body and table top
• Casters: unit is on casters for lab repositioning
• Storage racks included: 18 stainless steel racks total — 14 full-size, 4 half-width; all numbered with yellow position labels
• LN2 fill hose with adapter: included
• Locking step: included
• Documentation: CS200 Control Systems Operation & Maintenance Instructions manual included (Worthington Industries LABS and K Series)

Applications

The LABS-20K series is a professional-grade liquid nitrogen cryogenic storage system intended for biobanks, research laboratories, fertility clinics, cell therapy facilities, and similar life-science environments that require long-term cryopreservation of biological samples such as cell lines, tissue specimens, embryos, semen, and blood products. Liquid nitrogen freezers at this capacity are standard infrastructure in biorepositories and pharmaceutical research settings where maintaining sample viability at or near –196°C is critical. The vapor-phase storage option keeps samples below –130°C without direct contact with liquid nitrogen, reducing cross-contamination risk between samples — an important consideration for infectious or valuable specimens. The CS200 controller provides automatic LN2 replenishment and temperature logging capability, allowing facilities to maintain sample storage conditions with minimal manual intervention. Units in this class are commonly found in academic research centers, hospital tissue banks, cord blood banks, and commercial biorepositories.