Medical Dewar BNC-S series

laboratoryfor samplesfor the pharmaceutical industry

Product overview
Biobank Series stainless steel cryogenic tanks provide automatic, secure and reliable liquid nitrogen freezing systems for long-term biological sample preservation. Tanks feature casters with brakes, wide neck openings for easy insertion and retrieval of racks and specimens, and can store samples in liquid or vapor phase. The control system supports automatic LN2 filling and monitoring to optimize operational cost by minimizing liquid nitrogen consumption while maximizing sample storage capacity.

Performance and technology
Biobank Series integrates advanced evacuation and adiabatic insulation with high vacuum retention to ensure safe, uniform low temperatures and minimal LN2 consumption. In vapor storage mode, temperature variation across the storage area does not exceed 10 °C; rack top temperatures can reach as low as -190 °C. Fast access, reliable protection, automatic filling and flexible storage layouts are supported.

Application range
Designed for long-term static preservation of large volumes of biological samples such as stem cells, plasma, semen, embryos, tissues and organs in research, blood banks, clinical and biobanking facilities.

Product advantages

• Big storage capacity: Compact footprint with high usable storage volume to maximize sample density and reduce facility cost.
• Excellent temperature uniformity: Vacuum-insulated stainless steel construction with high vacuum coverage for superior thermal insulation.
• Stable open cover temperature: Optimized lid and small neck design reduce LN2 evaporation; internal temperature remains stable (not exceeding −150 °C within 48 hours) even with prolonged lid opening.
• Advanced temperature monitoring system: Microprocessor control with vertical dual platinum RTD sensors; real-time temperature display accuracy ±1 °C and user-configurable alarm thresholds with mute option.
• Automatic LN2 filling and liquid level monitoring: Differential pressure sensor provides real-time liquid level; safe automatic filling controlled via a 10-inch LCD touch screen that displays top/bottom temperature, liquid level and status.
• Hot gas bypass: Removes warm gas prior to liquid fill so only liquid nitrogen enters the tank, avoiding temperature fluctuation during filling and reducing additional LN2 consumption.
• Human-centered design: Stainless steel auxiliary table for temporary rack placement, foldable steps to reduce working height, and spare openings in trays to retrieve accidentally dropped samples.

Specifications (table)
model | BNC-S1000-VS/PM | BNC-S1800-VS/PM | BNC-S1800-VS/PT | BNC-S1900-VS/PT | 2000-VS/PT | 2100-VS/PT | 2200-VS/PT
Tank parameters (header row)
Liquid nitrogen at the bottom of tray (L) | 135 | 320 | 320 | 262 | 262 | 262 | 262
Sample storage space volume (L) | 808 | 1445 | 1445 | 1564 | 1658 | 1771 | 1884
Tank geometry volume (L) | 1072 | 1990 | 1990 | 2105 | 2200 | 2315 | 2429
Tank effective volume (L) | 1014 | 1880 | 1880 | 1946 | 2041 | 2156 | 2270
Tank diameter (mm) | 465 | 635 | 635 | 635 | 635 | 635 | 635
Internal effective height (mm) | 900 | 900 | 900 | 830 | 880 | 940 | 1000
Tank outer diameter (mm) | 1190 | 1565 | 1565 | 1685 | 1685 | 1685 | 1685
Total tank height (mm) | 1704 | 1883 | 1883 | 1509 | 1559 | 1619 | 1679
Tank empty weight (kg) | 495 | 985 | 985 | 860 | 880 | 900 | 920
Tank operating height (mm) | 950 | 1097 | 1097 | 950 | 1000 | 1060 | 1120
Full load weight (kg) | 1314 | 2504 | 2504 | 2432 | 2529 | 2642 | 2754
Door width requirement ≥mm | 1210 | 1585 | 1585 | 1705 | 1705 | 1705 | 1705
Daily evaporation rate % | 0.82 | 0.75 | 0.75 | 0.65 | 0.65 | 0.65 | 0.65
voltage | 220VAC / 24VDC | 220VAC / 24VDC | 220VAC / 24VDC | 220VAC / 24VDC | 220VAC / 24VDC | 220VAC / 24VDC | 220VAC / 24VDC

Capacities & storage examples (selected rows)
0.5ml cryopreservation tube maximum storage quantity (High Security Straw Capacity) | 66000 | 117000 | 126500 | 143450 | 151000 | 158550 | 173650
5×5 0.5ml Number of rack | 4 | 18 | 13 | 14 | 14 | 14 | 14
10×10 0.5ml Number of rack | 32 | 54 | 60 | 72 | 72 | 72 | 72
5×5 0.5ml Quantity of cryobox | 80 | 360 | 260 | 266 | 280 | 294 | 322
10×10 0.5ml Quantity of cryobox | 640 | 1080 | 1200 | 1368 | 1440 | 1512 | 1656
0.5ml Layer of Rack | 20 | 20 | 20 | 19 | 20 | 21 | 23

Notes
Specification tables include additional detailed rows (rack sizes, cryobox sizes, vial/straw capacities for 0.25ml/0.5ml/2ml/5ml formats, canister counts and layering). Refer to the full specification table above for model-by-model capacities and dimensions.

Technical specifications

• Series: BNC-S series (models shown: BNC-S1000-VS/PM up to 2200-VS/PT).
• Tank effective volume range: ~1014 L to 2270 L (model dependent).
• Sample storage space volume range: ~808 L to 1884 L.
• Liquid nitrogen bottom tray capacity examples: 135 L to 320 L depending on model.
• Vacuum-insulated stainless steel construction with high vacuum retention and adiabatic insulation.
• Top/bottom temperature monitoring with vertical dual platinum RTD; accuracy ±1 °C; 10-inch LCD touch display.
• Automatic LN2 filling with differential-pressure liquid level monitoring; hot gas bypass for stable filling.
• Daily LN2 evaporation rate (example values): 0.65%–0.82% depending on model.
• Voltage: 220 VAC power with 24 VDC control interface.
• Storage examples: model-dependent capacities for 0.5 ml straws and multiple vial formats as detailed in the specification table (up to ~919,548 straws across configurations).