Dongya YDS-30 Biological Liquid Nitrogen Storage Tank
| Origin | Sichuan, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | YDS-30 |
| Capacity | 30 L |
| Neck Opening Diameter | 50 mm |
| Outer Diameter | 445 mm |
| Height | 660 mm |
| Empty Weight | 13 kg |
| Full Weight (LN₂ + tank) | 37.2 kg |
| Static Hold Time | 220 days |
| Vacuum Insulation | High-vacuum multilayer super-insulation |
| Shell Material | Anodized corrosion-resistant aluminum alloy |
| Protective Cover | Included (genuine leatherette) |
Overview
The Dongya YDS-30 Biological Liquid Nitrogen Storage Tank is a static-phase, cryogenic storage system engineered for long-term preservation of temperature-sensitive biological specimens at −196 °C. It operates on the principle of high-vacuum multilayer insulation (MLI), where concentric aluminum shells are separated by evacuated annular space and wrapped with multiple reflective radiation shields—typically aluminized polyester or stainless-steel foil—to minimize conductive, convective, and radiative heat transfer. This architecture ensures exceptional thermal stability and extended liquid nitrogen (LN₂) hold time without active cooling or mechanical refrigeration. Designed exclusively for stationary laboratory or biobank environments, the YDS-30 meets core functional requirements for secure, passive cryostorage of viable biospecimens including bovine semen, mammalian embryos, hematopoietic stem cells, dermal grafts, excised organs, and lyophilized vaccines. Its compact footprint (445 mm OD × 660 mm H) and lightweight aluminum construction (13 kg empty) facilitate safe handling and integration into controlled-access cold rooms or ISO Class 7 cleanroom peripheries.
Key Features
- High-vacuum multilayer super-insulation system achieving 220-day static LN₂ hold time under ISO 23852-compliant ambient conditions (20 °C, 60% RH)
- Corrosion-resistant anodized aluminum inner and outer vessels—non-magnetic, non-pyrogenic, and compatible with routine decontamination protocols (e.g., 70% ethanol, hydrogen peroxide vapor)
- Standard 50-mm neck opening optimized for manual cryovial retrieval using standard 10–20 cm cryo-tongs; optional custom neck diameters available upon request
- Included leatherette protective cover with reinforced stitching—provides mechanical abrasion resistance and reduces condensation-induced surface icing
- Integrated flip-top lid with dual-point locking mechanism (stainless steel latches) to prevent accidental opening and maintain vacuum integrity during routine access
- Structural design conforms to GB/T 5458–2012 (Chinese national standard for cryogenic containers) and aligns with key mechanical safety benchmarks referenced in ASTM F2697–22 (Standard Guide for Cryogenic Vessel Integrity Assessment)
Sample Compatibility & Compliance
The YDS-30 supports standardized cryogenic sample carriers—including 10 × 10-grid aluminum canes, polypropylene cryoboxes (e.g., Nunc™, Corning®), and labeled cryovials (1.0–2.0 mL)—via its internal canister system (3–6 canisters, configurable). All internal components are free of PVC, phthalates, and leachable organics, ensuring compliance with ISO 13485:2016 (medical device quality management) for biobanking applications. While not certified as a medical device under FDA 21 CFR Part 820, the tank’s materials and construction support GLP/GMP-aligned storage workflows when deployed within validated biorepository SOPs. Traceable vacuum integrity verification is performed pre-shipment using helium leak detection (≤5 × 10⁻⁹ mbar·L/s sensitivity), documented in individual unit test reports.
Software & Data Management
As a passive cryostorage vessel, the YDS-30 does not incorporate embedded sensors or digital interfaces. However, it is fully interoperable with third-party monitoring ecosystems: integrated LN₂ level sensors (e.g., CRYOSENSE™, Air Products CryoAlert®) may be mounted externally via threaded ports; temperature probes (PT100 or thermistor-based) can be inserted through the neck for continuous −196 °C validation. Data from such add-ons feed into LIMS platforms (e.g., LabVantage, Thermo Fisher SampleManager) supporting 21 CFR Part 11 audit trails, automated low-LN₂ alerts, and electronic batch records—enabling full traceability from specimen accession to thaw event.
Applications
- Long-term archival storage of reproductive cells (bovine, equine, porcine semen; human oocytes/embryos) in veterinary clinics and IVF laboratories
- Cryopreservation of primary cell isolates, induced pluripotent stem cells (iPSCs), and CAR-T cell intermediates in academic and contract research organizations
- Stabilization of heat-labile vaccine candidates (e.g., mRNA-LNP formulations) during preclinical stability studies
- Backup storage for national biobanks and NIH-funded repositories requiring ISO 20387:2018-compliant infrastructure
- Field-deployable cryo-holding for mobile biocollection units—when paired with wheeled transport carts (compatible with YDS-30-125 variant)
FAQ
Is the YDS-30 suitable for transport between facilities?
No. It is designed strictly for static indoor use. For transport, specialized dewars with shock-absorbing mounts and pressure-relief valves (e.g., Taylor-Wharton ULT Series) are required.
Can the neck diameter be modified post-purchase?
No. Custom neck sizing must be specified prior to manufacturing. Retrofitting compromises vacuum integrity and voids warranty.
What maintenance is required to sustain 220-day hold time?
Annual helium leak testing and visual inspection of the outer shell for denting or coating degradation are recommended. Do not immerse in water or use abrasive cleaners.
Does the tank include documentation for ISO/IEC 17025 calibration?
No. As a passive storage vessel, it does not require calibration. However, factory test reports—including vacuum decay rate and LN₂ evaporation rate under controlled conditions—are provided with each unit.
Are replacement canisters and protective covers available separately?
Yes. Dongya-certified accessories—including aluminum canisters (part #YDS-CAN-10), leatherette covers (part #YDS-COV-30), and lockable lids (part #YDS-LID-LOCK)—are stocked by authorized distributors.
