BDW-86L Series -86°C Ultra-Low Temperature Freezers
The BDW-86L series ultra-low temperature freezers utilize an optimized dual-stage cascade refrigeration system paired with eco-friendly HCFC-free refrigerants and 126 mm high-density polyurethane insulation. Engineered to ensure uncompromising sample integrity, equipment reliability, and user safety, the series delivers dependable cryogenic storage from -50°C to -86°C for medical, biological, and pharmaceutical biobanks.
Temperature Range -50°C to -86°C | 7-Inch LCD Touchscreen | 126 mm R245fa Ultra-Thick Insulation | 304 Stainless Steel Interior
Key Features
- Dual-Stage Cascade Refrigeration: High-efficiency cascade system using environmentally safe, HCFC-free refrigerants achieves rapid pull-down to -86°C within 5 to 6 hours.
- 7-Inch Color LCD Touchscreen: Intuitive human-machine graphical interface for easy parameter monitoring, real-time temperature graphing, and effortless operation.
- Superior Thermal Insulation: 126 mm ultra-thick high-density polyurethane insulation foamed with R245fa provides exceptionally low thermal conductivity, high flame retardancy, and minimal heat loss.
- Premium SUS304 Stainless Steel Interior: Rust-proof, chemical-resistant 304 stainless steel inner chamber with height-adjustable and detachable shelf brackets for easy sanitization.
- Four Insulated Inner Doors: Independent foamed inner doors minimize cold air loss and temperature fluctuations during routine door openings.
- Ergonomic Door Handle: Extended bionic lever handle enables smooth, single-handed opening and closing with integrated mechanical key lock and padlock latch.
- Heated Pressure Equalization Port: Automatic vacuum-release valve prevents door seal freeze-up, allowing instant door reopening.
- Anti-Condensation Frame Heater: Built-in heating elements along the outer door frame prevent condensation build-up in high-humidity environments.
- Reinforced Heavy-Duty Shelving: Robust stainless steel shelves support up to 50 kg per tier for high-density cryogenic storage racks.
- Heavy-Duty Mobility: Directional swivel castors with integrated adjustable leveling feet ensure effortless relocation and stable positioning.
Three-Level User Authority Management
- Role-Based Access Control: Controller supports tiered user management with customizable permissions assigned to Administrator, Operator, and Visitor accounts.
- Operation Auditing: Password-protected menus ensure that critical temperature setpoints and alarm limits cannot be modified without authorization.
Data Logging & Remote Connectivity
- USB Data Export: Front-panel USB interface enables direct export of temperature logs and system operating records in PDF format.
- Remote Alarm & RS485 Interfaces: Standard RS485 communication port and remote alarm relay contacts for centralized laboratory network and BMS integration.
Comprehensive Safety Alarms & System Protection
- Audible & Visual Alarms: Dual sound and flashing light alerts for high/low temperature, power outage, sensor failure, condenser filter cleaning, refrigeration fault, door ajar, and low battery.
- 48-Hour Backup Battery: Built-in rechargeable battery powers the display, data logging, and alarm functions for at least 48 hours during main power disruptions.
- Compressor Safety Protection: Integrated start-up delay protection and compressor thermal overload cutoff.
- Self-Diagnostic System: Automatically detects operating anomalies and displays corresponding fault diagnostic codes for rapid servicing.
- Complete Event Logging: Full traceable record of all alarms, operational warnings, and user interventions.
Applications
Essential for long-term preservation of virus strains, bacteria, red and white blood cells, skin, bones, biological tissues, DNA/RNA samples, stem cells, marine specimens, and special electronic and chemical test materials in hospitals, epidemic prevention stations, research institutes, biomedical enterprises, and university biobanks.
Technical Specifications
| Specification | BDW-86L390 | BDW-86L490 | BDW-86L650 | BDW-86L770 |
|---|---|---|---|---|
| Nominal Capacity | 390 Liters | 490 Liters | 650 Liters | 770 Liters |
| Temperature Range | -50 °C to -86 °C | -50 °C to -86 °C | -50 °C to -86 °C | -50 °C to -86 °C |
| Characteristic Temp. Point | -86 °C | -86 °C | -86 °C | -86 °C |
| Temperature Uniformity | ≤ 6 °C | ≤ 6 °C | ≤ 6 °C | ≤ 6 °C |
| Pull-down Time (to -86°C) | ≤ 5 hours | ≤ 5 hours | ≤ 6 hours | ≤ 6 hours |
| Insulation Thickness | 126 mm (R245fa Polyurethane) | 126 mm (R245fa Polyurethane) | 126 mm (R245fa Polyurethane) | 126 mm (R245fa Polyurethane) |
| Exterior Material | Powder-coated steel plate | Powder-coated steel plate | Powder-coated steel plate | Powder-coated steel plate |
| Interior Material | SUS304 Stainless steel | SUS304 Stainless steel | SUS304 Stainless steel | SUS304 Stainless steel |
| Inner Doors / Shelves | 4 foamed doors / 3 shelves | 4 foamed doors / 3 shelves | 4 foamed doors / 3 shelves | 4 foamed doors / 3 shelves |
| Compartments | 4 compartments | 4 compartments | 4 compartments | 4 compartments |
| Cryo Racks (2″ Boxes) | 16 Racks (240 Boxes) | 16 Racks (320 Boxes) | 20 Racks (400 Boxes) | 20 Racks (500 Boxes) |
| Dual Security Locks | Mechanical lock + Padlock hole | Mechanical lock + Padlock hole | Mechanical lock + Padlock hole | Mechanical lock + Padlock hole |
| Controller Type | 7-inch Color Touchscreen | 7-inch Color Touchscreen | 7-inch Color Touchscreen | 7-inch Color Touchscreen |
| Refrigerant Type | Eco-friendly HCFC-Free | Eco-friendly HCFC-Free | Eco-friendly HCFC-Free | Eco-friendly HCFC-Free |
| Noise Level | ≤ 53 dBA | ≤ 53 dBA | ≤ 53 dBA | ≤ 53 dBA |
| Rated Power | 1500 W | 1500 W | 1800 W | 1800 W |
| Power Supply | AC 220 V, 50 Hz | AC 220 V, 50 Hz | AC 220 V, 50 Hz | AC 220 V, 50 Hz |
| Net Weight | 318 kg | 332 kg | 410 kg | 490 kg |
| Certifications | CE, RoHS, Medical Device | CE, RoHS, Medical Device | CE, RoHS, Medical Device | CE, RoHS |
Dimensional Specifications
| Model | External Dimensions (W × D × H mm) | Internal Dimensions (W1 × D1 × H1 mm) | Door Open Clearance (W2 × H2 mm) |
|---|---|---|---|
| BDW-86L390 | 909 × 797 × 1990 mm | 589 × 505 × 1310 mm | 1600 × 1603 mm |
| BDW-86L490 | 909 × 929 × 1990 mm | 589 × 637 × 1310 mm | 1600 × 1735 mm |
| BDW-86L650 | 1091 × 929 × 1990 mm | 780 × 637 × 1310 mm | 1913 × 1918 mm |
| BDW-86L770 | 1091 × 1053 × 1990 mm | 780 × 760 × 1310 mm | 1913 × 2042 mm |
Optional Accessories
| Optional Item | Description & Function |
|---|---|
| CO2 / LN2 Backup Systems | Automatic switchover cryogenic backup injection system maintaining internal temperature during prolonged power outages. |
| Facial Recognition Module | Biometric visual login for strict access governance, storing up to 100,000 traceable audit trail records. |
| Secondary Temperature Sensor | Auxiliary probe placed flexibly for sample-level monitoring or calibration verification. |
| Digital Temperature Data Logger | Plug-and-play USB data recorder generating GMP-compliant PDF audit reports with a single click. |
| Circular Chart Temperature Recorder | Physical paper-based temperature chart recorder providing continuous traceable documentation. |
| Heavy-Duty Voltage Stabilizer | Delivers stabilized voltage output during severe power grid fluctuations between 160V and 250V. |
| Cryogenic Racks & Cryo Boxes | High-grade stainless steel side-access/drawer freezer racks and standard 2-inch cryogenic boxes. |
| Remote Camera Surveillance | Integrated IoT camera enabling real-time remote monitoring of freezer operational status. |
Note: Standard unit includes 4 insulated inner doors, 3 adjustable stainless steel shelves, heated pressure equalization port, and 48-hour display backup battery.
