A vertical ultra-low temperature freezer from the UltraEco series, designed for long-term storage of biological samples, reagents, plasma, cell lines, and temperature-sensitive materials. ENERGY STAR certified as the ultra-low temperature freezer with the lowest daily energy consumption in the category — just 4.16 kWh/day in the DW-86L730BPT —, the UltraEco series combines hydrocarbon (HC) refrigeration technology, variable frequency control, and ultra-low GWP insulation to deliver superior performance with minimal environmental impact.

The natural hydrocarbon refrigeration system operates with R-290 (propane, GWP = 3) and R-170 (ethane, GWP = 6) refrigerants — completely free of high-GWP fluorinated compounds. Combined with variable frequency conversion technology and an optimized structural design, the system reduces operating costs by up to 50% compared to the previous generation, with no compromise on performance or storage capacity.

The UltraEco series delivers substantial performance improvements over previous-generation models: temperature uniformity of ±2°C in the DW-86L730BPT, 1-minute door opening recovery time reduced to 15 minutes, re-entry time measured in seconds, warm-up time from −80°C to −50°C improved by up to 80%, and a significantly lower noise level. The touchscreen LCD display with microprocessor controller and integrated USB interface enables precise control, monitoring, and data extraction. Universal power supply (100–230 V / 50–60 Hz) ensures global compatibility.

The ultra-low GWP insulation complements the natural refrigerant, making the UltraEco series the lowest-impact choice among high-capacity ultra-low temperature freezers on the market — a standing confirmed by its #1 ranking in the ENERGY STAR certification for lab-grade refrigerators and freezers.

Technical Specifications

Key Features

• #1 ranked in ENERGY STAR certification for lab-grade refrigerators and freezers

• Lowest daily energy consumption in category: 4.16 kWh/day (DW-86L730BPT)

• Up to 50% reduction in operating costs versus previous generation

• Natural HC refrigerant (R-290 GWP=3 / R-170 GWP=6): zero fluorinated compounds, minimal environmental impact

• Ultra-low GWP insulation material

• Temperature uniformity of ±2°C in the DW-86L730BPT

• 1-minute door opening recovery time: 15 minutes (DW-86L730BPT)

• Up to 80% improvement in warm-up time from −80°C to −50°C

• Touchscreen LCD display with microprocessor controller

• Integrated USB interface for data extraction and management

• Universal power supply 100–230 V / 50–60 Hz for global use

• Low noise level < 46 dB(A)

• 4 inner doors, 3 adjustable stainless steel shelves, and 4 swivel castors

Applications

The UltraEco series is designed for pharmaceutical, biomedical, and genomic research laboratories, biobanks, universities, university hospitals, biotechnology companies, and immunobiological distribution centers that store long-term biological samples with strict temperature requirements and seek to reduce energy consumption and the environmental footprint of ultra-low temperature storage operations.

The two models — DW-86L730BPT (730 L) and DW-86L830BPT (830 L) — serve both mid-sized laboratories and large-scale operations, and the ENERGY STAR certification with the lowest consumption in the category makes the series especially relevant for institutions with sustainability, energy efficiency, and environmental compliance commitments