The Haier DW-86L728BPST is a 728 L (25.7 cu ft) upright -86 °C ultra-low freezer with Haier Biomedical's TwinCool architecture: two fully independent hydrocarbon refrigeration systems, each able to hold the cabinet at -80 °C on its own. That redundancy is the defining feature — if one system faults, the second maintains storage temperature, protecting irreplaceable samples during the window before service. Combined with intelligent frequency-conversion (variable-speed) compressors, a 7-inch LCD touchscreen, and a 42 dB(A) sound level, the DW-86L728BPST targets the highest-value biorepository inventories where a single point of refrigeration failure is unacceptable.
Key Specifications
| Spec | Value |
| Model (focus) | Haier DW-86L728BPST |
| Cabinet type | Upright |
| Temperature range | -40 °C to -86 °C |
| Refrigeration | TwinCool — dual independent HC systems, frequency-conversion |
| Redundancy | Each system independently maintains -80 °C |
| Capacity | 728 L / 25.7 cu ft (500 × 2-in boxes) |
| Controller / display | Microprocessor, LCD touchscreen |
| Sound level | 42 dB(A) |
| Inner doors | 4 |
| Shelves | 3 stainless-steel adjustable |
| Power supply | 100–230 V, 50/60 Hz |
| Max power | 1100 W |
| Interior dims (W×D×H) | 766 × 716 × 1310 mm |
| Exterior dims (W×D×H) | 1046 × 998 × 1980 mm |
| Net/gross weight | 350 / 385 kg |
| Certification | UL, ENERGY STAR |
| List price | $23,200.00 (MSRP) — LLS price $19,720.00 |
Application Profile
The DW-86L728BPST is the freezer to specify when the cost of a temperature excursion exceeds the price premium of redundancy — master cell banks, GMP/clinical-trial material, unique patient cohorts, and irreplaceable research collections. Its two independent hydrocarbon systems mean routine compressor failure degrades but does not eliminate cooling: the surviving system continues holding -80 °C while service is arranged. Layered on top is the frequency-conversion drive, which modulates compressor output to load for both tight control and low running cost — Haier cites up to a 50% energy reduction against traditional single-stage HFC systems. (See cold-chain-sample-storage.)
The 25.7 cu ft cabinet holds up to 500 standard 2-inch boxes behind four sealed inner doors, and the full alarm suite — high/low temperature, power failure, hot condenser, door ajar, sensor error, low battery, and high-ambient — feeds both an audible buzzer and remote/USB monitoring outputs.
Frequently Asked Questions
What does "TwinCool" mean on the Haier DW-86L728BPST? It denotes two fully independent hydrocarbon refrigeration systems. Each can maintain the cabinet at -80 °C by itself, so a single-system fault does not halt cold storage.
What temperature range does it hold? -40 °C to -86 °C, with dual-system redundancy protecting the -80 °C setpoint.
How much does it store? 728 L / 25.7 cu ft — up to 500 standard 2-inch cryo boxes across four inner doors and three adjustable shelves.
How does it compare on energy use? The frequency-conversion compressors modulate to the heat load; Haier cites up to a 50% energy reduction versus conventional HFC ULT freezers. It is UL and ENERGY STAR certified.
How loud is it, and what power does it need? 42 dB(A), on a universal 100–230 V, 50/60 Hz input drawing up to 1100 W.
Ordering & Configuration
quote-based. The DW-86L728BPST is a capital ultra-low freezer sold through a quote. At quote we confirm the 100–230 V service and receptacle, floor space for the 1046 × 998 × 1980 mm cabinet, ambient conditions, backup/monitoring accessories (CO₂/LN₂ backup and chart recorder optional), rack layout, and installation. Warranty terms are confirmed with the quote, and lead time is provided at quotation. Request a quote to configure the DW-86L728BPST for your most critical inventory.
When to pick the TwinCool DW-86L728BPST: choose it over the single-system DW-86L730BPT (also 25.7 cu ft, frequency-conversion) specifically for dual-system redundancy on irreplaceable samples. If the inventory does not justify a redundant refrigeration circuit, the DW-86L730BPT delivers the same capacity and touchscreen platform at a lower price point.
