The Haier DW-40L818BP is a large-capacity −40°C upright biomedical freezer offering 818 L (28.9 cu ft) for high-volume reagent, sample, and blood-product storage in the −20 to −40°C band. A high-efficiency hydrocarbon compressor on a universal 100–230V/50-60Hz input drives ±3°C uniformity, and five adjustable wire shelves — with optional blood-bag drawers — organize the deep interior.
Key Specifications
| Model | DW-40L818BP |
| Cabinet type | Upright |
| Cooling performance | −40°C |
| Temperature range | −20°C to −40°C |
| Temperature uniformity | ±3°C |
| Refrigeration | High-efficiency HC compressor |
| Capacity | 818 L / 28.9 cu ft |
| Shelves / drawers | 5 adjustable wire shelves; 30 blood-bag drawers optional |
| Controller / display | Microprocessor, LED (10-inch touchscreen optional) |
| Sound level | 44 dB(A) |
| Power supply | 100–230 V / 50/60 Hz |
| Max power | 795 W |
| Certification | UL |
Application Profile
A −40°C freezer occupies an important middle band — colder than a −30°C for longer-term stability of enzymes, plasma, and select biologicals, but without the purchase and energy cost of a −86°C ULT. The DW-40L818BP brings that band together with genuine high volume: 818 L in a single upright, enough to consolidate a program's −40°C inventory and defer a second cabinet. Its ±3°C uniformity protects the temperature-sensitive material that justifies the colder setpoint.
The universal 100–230V input makes it flexible across facility power, and the high-efficiency hydrocarbon compressor keeps draw to 795 W at a low 44 dB(A). Five adjustable wire shelves handle boxed and bottled storage; optional blood-bag drawers (up to 30) reconfigure it for blood-product organization. Two rear 25 mm portholes accept independent probes.
Design Architecture
The microprocessor controller with LED display — upgradeable to a 10-inch touchscreen — drives the full alarm suite: high/low temperature, door ajar, power failure, sensor error, low battery, high ambient temperature, and remote alarm in audible and visible modes, with standard RS-485 and optional USB for logging and facility integration. Casters and leveling feet ease placement in a validated cold-storage room.
Frequently Asked Questions
What temperature does the DW-40L818BP reach? −20°C to −40°C, with a −40°C cooling performance and ±3°C uniformity.
Why choose −40°C over −30°C or −86°C? −40°C gives longer-term stability than −30°C for many biologicals while avoiding the cost and energy of a −86°C ULT. Match the setpoint to your samples' storage requirement.
How much does it hold? 818 L (28.9 cu ft) on 5 adjustable wire shelves; optional blood-bag drawers organize it for blood products.
What power does it use? Universal 100–230 V, 50/60 Hz, up to 795 W.
Can I add a touchscreen and data logging? Yes — an optional 10-inch touchscreen and USB/RS-485 data output are available.
Ordering & Configuration
The DW-40L818BP is a capital freezer: request a quote for pricing, freight, and siting. It ships palletized. Backed by Haier Biomedical's manufacturer warranty — confirm current warranty, certification, and lead time with your quote.
Choose the DW-40L818BP when you need high-volume −40°C storage in one cabinet with universal voltage and optional blood-bag configuration. Drop to a −30°C model for material stable at −30°C, or move to a DW-86L ULT when −80°C is required.
