POLAR86 range · ULT freezers −86 °C
POLAR86-58U ULT freezer −86 °C — 58 L, under-counter
POLAR86-58U is an ultra-low temperature freezer for safe long-term storage of biological samples at −80 °C. Fits under a standard lab bench; ideal for a single research group or as a working freezer next to the instrument. The cabinet reaches −86 °C, controls temperature with a PTC100 probe and warns the user through ten independent alarms, including a 72-hour battery-backed power-failure alarm.
Key characteristics
- Temperature range −40 to −86 °C
- Cooling: Auto-cascade, 1 compressor (SECOP)
- Controller: LED digital
- Stainless steel SUS304 interior, foamed inner doors with silicone gaskets
- 10 alarms incl. high/low temperature, door ajar, power failure and sensor error
- 72 h battery-backed power-failure alarm, USB data export, RS485 and remote alarm contact
Suitable for
- Long-term storage of biological samples, DNA/RNA, proteins and enzymes
- Cell lines, bacterial and viral stocks
- Reagents, standards and reference materials
- Biobanks, hospital and research laboratories
Storage capacity
1 adjustable shelf; 2 racks (6×2), 24 boxes 2″, 2,400 x 2 ml. Inner doors reduce cold loss when the door is opened, so the samples you are not handling stay at temperature.
Model and identification
| Model | POLAR86-58U |
| COLO code | PRO7221 |
| Product group | Cold Chain · ULT freezers |
Technical specifications
| Temperature range | -40 to -86 °C |
| Ambient temperature | 10–32 °C |
| Capacity | 58 L |
| Cooling system | Auto-cascade, 1 compressor (SECOP) |
| Refrigerant | R4001 (mixed gas) |
| Cooling method | Direct cooling, manual defrost |
| Controller / display | Microprocessor, LED digital |
| Sensor | PTC100 |
| Insulation | PURF |
| Storage | 1 adjustable shelf; 2 racks (6×2), 24 boxes 2″, 2,400 x 2 ml |
| Inner doors | 1 foamed SUS304 inner door |
| Access port | 1 x 25 mm |
| Interfaces | USB data export, RS485, remote alarm contact |
| Power failure backup alarm | 72 h |
| Inside / outside material | Stainless steel SUS304 / colour sprayed steel |
| Electrical | 336 W, 3 A, 220 V 50/60 Hz |
| Power consumption | 5.3 kWh/24h |
| Noise | 50 dB(A) |
| Exterior size W x D x H | 904 x 798 x 748 mm |
| Interior size W x D x H | 330 x 453 x 410 mm |
| Package size W x D x H | 966 x 818 x 932 mm |
| Net / gross weight | 94 / 128 kg |
Alarms and data
High/low temperature, power failure, abnormal voltage, sensor error, door ajar, filter check, thermostat failure, low battery, condenser clean, high ambient temperature. Alarms are audible and visual; the remote alarm contact can be connected to a building management or SMS alarm system, and the USB port exports temperature records for audits.
Standard delivery
Freezer with standard shelves and inner doors, mains cable, user manual.
Options
- Stainless steel racks and cryo boxes
- Temperature data logger and chart recorder
- CO₂ or LN₂ backup cooling system for power failures
- Cryo gloves for safe handling
Delivery, carrying-in and installation
The unit weighs 128 kg packed and can be carried into the laboratory by two people; delivery and positioning are included in our offer. Leave at least 10 cm free space around the ventilation grilles.
Selection guide — POLAR86 range
| Model | Design | Volume | Capacity (2″ boxes / 2 mL tubes) | Exterior W × D × H (mm) |
|---|---|---|---|---|
| POLAR86-58U | under-counter | 58 L | 24 boxes · 2,400 × 2 mL | 904 x 798 x 748 |
| POLAR86-58V | compact upright | 58 L | 24 boxes · 2,400 × 2 mL | 635 x 757 x 1212 |
| POLAR86-340E | upright | 340 L | 192 boxes · 19,200 × 2 mL | 854 x 1006 x 1907 |
| POLAR86-408 | upright, dual-compressor cascade | 408 L | 288 boxes · 28,800 × 2 mL | 891 x 992 x 1945.5 |
| POLAR86-588E | upright | 588 L | 400 boxes · 40,000 × 2 mL | 891 x 1155 x 1994.5 |
| POLAR86-728 | upright, wide cabinet | 728 L | 504 boxes · 50,400 × 2 mL | 1248 x 975 x 1994.5 |
Need help choosing an ULT freezer?
Tell us how many boxes or tubes you store today and plan to store in three years, and how the freezer will reach the lab. We will recommend the right size and send a quotation with delivery and installation. Call +386 70 713 437 or write to sales@colo.si.
