Ultra Low Temperature Freezer DDF-8684
Manual Defrost, Digital Display Suitable for hospitals, blood banks, epidemic prevention, electronic and chemical laboratories, research institutes, biological engineering institutes and marine fishery companies.
Designed to store various biological products, including viruses, germs, erythrocytes, cutis, and some other laboratory materials.
Features
Refrigeration System
Optimized cascade refrigeration technology, SECOP compressor to reach a high efficient refrigeration effect, specially designed Heat Exchanger, heat transfer high efficient, save Energy, CFC-Free overall situ polyurethane foaming insulation, CFC-Free refrigerant.
Temperature Control
Microprocessor control, digital display of inner temperature, the inner temperature can be adjustable at the range of -10℃~-86℃, LCD running status and alarm information, Over temperature alarm system, set the alarm temperature as requirements.
Safety Control
Malfunction alarms: high temperature alarm, low temperature alarm, Sensor failure, Power failure alarm, Door jammed, low valtage of backup battery,
Two alarming methods:
buzzer alarming and digital flashing alarming,
Protection function: power-on delay, time between stops.
Ergonomic Design
Safety door lock, preventing unauthorized access.
Wide voltage design from 187V to 242V.
Maintenance free condenser design.
25mm access port.
Pressure-balanced port design, easy to open the door.
Heavy type caster and locking adjustable screw, easy to move and fix.
Specification :
| Model | DDF-8628 | DDF-8684 |
| Capacity(L) | 280 | 840 |
| Temp. set Range | -40～-86℃ | -40～-86℃ |
| Power Supply | 220V/50~60Hz | 220V/50~60Hz |
| Shelves | 3 | 3 |
| Exterior Dimensions(mm)(W×D×H) | 620x650X1920 | 1060x952X1970 |
| Interior Dimensions(mm)(W×D×H) | 440x450x1310 | 880x730x1310 |
| Package Dimensions(mm)(W×D×H) | 780×785×2020 | 1220×1050×2030 |
| Net/Gross Weight | 197/210 | 415/390 |
High-Capacity, Energy-Efficient -86°C Storage: Ultra Low Temperature Freezer DDF-8684
Secure large inventories of irreplaceable biological materials with the Ultra Low Temperature Freezer DDF-8684—a high-performance, 840-liter ULT freezer engineered for biobanks, pharmaceutical manufacturers, genomic research centers, and clinical trial repositories. Maintaining a precise –86°C environment with exceptional uniformity and minimal energy consumption, the DDF-8684 meets CLSI C27-A, FDA 21 CFR Part 11, GxP, and ISO 20387 standards for long-term preservation of cell lines, vaccines, DNA/RNA, tissues, and reagents.
Engineered for Scale, Stability, and Sustainability
The DDF-8684 Ultra Low Temperature Freezer features a spacious 840-liter interior with configurable stainless steel shelves, inner compartment doors, and optimized airflow to ensure uniform temperature distribution (–86°C ±3°C) across all storage zones. Its advanced dual-compressor cascade cooling system provides rapid cooldown, fast temperature recovery after door openings, and redundancy for critical sample protection. Enhanced Vacuum Insulation Panel (VIP) technology reduces energy use by up to 35% compared to conventional ULT freezers.
- Precise –86°C Operation (Adjustable: –50°C to –86°C) – Ideal for sensitive biologics, viral vectors, and mRNA-based therapeutics.
- 840-Liter Capacity – Holds up to 60,000 x 2 mL cryovials or 500+ standard freezer boxes.
- Energy-Efficient Design – Uses eco-friendly hydrocarbon refrigerants (R290/R170) and VIP insulation for lower operating costs and carbon footprint.
- Comprehensive Monitoring & Alarms – Audible/visual alerts for temperature deviation, power failure, door ajar, and system faults; optional Wi-Fi/cloud connectivity for remote monitoring.
- Secure, Contamination-Controlled Interior – Lockable door with triple-gasket seal, seamless stainless steel liner, and antimicrobial handles.
- Compliance-Ready – Optional 21 CFR Part 11-compliant data logger with audit trail, user access control, and electronic signatures.
Trusted for Mission-Critical Biopreservation
From national biobanks storing population-scale genomic samples to pharmaceutical companies managing clinical trial materials, the DDF-8684 ensures sample integrity under the most demanding conditions. Its reliability, scalability, and sustainability make it the cornerstone of modern cold chain infrastructure in regulated and research-intensive environments.
When your inventory spans thousands of irreplaceable samples, trust the Ultra Low Temperature Freezer DDF-8684—where capacity meets confidence.
Preserve more. Consume less. Protect what matters most.
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