Chest freezer LFZ-86W series

laboratory220 V110 V

Product overview
LFZ-86W Series ultra-low temperature chest freezers deliver adjustable storage from -40°C to -86°C with 0.1°C resolution. Inner tank and shelves are SS304 stainless steel. Models are available in several capacities; units use Danfoss (SECOP) compressors and EBM fans for reliable cooling and temperature uniformity.

Key features

• Temperature range: -40°C to -86°C (adjustable), 0.1°C step.
• Digital temperature display and microcomputer control for precise setpoint management.
• SS304 interior and shelves for corrosion resistance and easy cleaning.
• Single-cascade refrigeration optimized for uniform internal temperature; Danfoss (SECOP) compressor.
• Evaporative condenser and efficient design for low energy consumption and stable temperatures.
• Environmentally friendly fluoride-free mixed refrigerant; some models use hydrocarbon mixing.

Temperature control
Equipped with diXELL microcomputer controller and digital display. Temperature adjustable with 0.1°C resolution and configurable start/stop differential. RS232/RS485 interfaces allow connection to local monitoring or building management systems.

Safety system
Audible and visual alarms for high/low temperature and sensor faults, with password protection and anti-frequent-start protection. Thick polyurethane insulation (model-dependent up to 150 mm) and double thermal-insulation door provide thermal stability. Sturdy assist handles and key lock enhance secure operation.

Refrigeration system
Optimized single-cascade refrigeration with imported Danfoss (SECOP) compressor and evaporative condenser for uniformity and efficiency. Uses independent fluoride-free mixed refrigerant or hydrocarbon-mixed refrigerant depending on model.

Humanized design

• SS304 stainless steel shelves for organized storage and easy cleaning.
• Stainless steel interior suitable for ambient temperatures from 0°C to 32°C.
• Optional temperature recorder with USB connectivity and ability to save to U-disk; touch-screen options on selected models.

Optional accessories

• Multi-function paperless recorder and printing system.
• WiFi remote monitoring system.
• Backup battery for power-failure alarm.
• Racks and cryo-boxes for sample storage.

Technical parameters

• Models: LFZ-86W58 | LFZ-86W118 | LFZ-86W258 | LFZ-86W358 | LFZ-86W458 | LFZ-86W738
• Capacity: 58 L | 118 L | 258 L | 358 L | 458 L | 738 L
• Temperature range: -40°C to -86°C (all models)
• Display: Digital
• External size (W×D×H) cm: 67×76×102 | 127×79×99 | 151×88×109 | 181×88×109 | 210×88.5×109 | 193.5×99.6×103
• Internal size (W×D×H) cm: 41×41×38 | 54×40×56 | 78×50×69 | 108×50×69 | 138×50×69 | 131×73.5×77
• Inner material: SS304
• Compressor: SECOP / Danfoss
• Cooling fan: EBM
• External material: Cold rolled steel
• Foam thickness: 100 / 130 / 150 mm (model dependent)
• Door lock: Key lock
• Balance hole: Yes
• Touch screen / Temp. recorder / USB: Available on indicated models
• Refrigerant: Mixed refrigerant / Hydrocarbon mixing (model dependent)
• Cooling type: Direct
• Input power: 300W | 280W | 720W | 750W | 800W | 1100W
• Power supply: 220V/50Hz (110V/60Hz optional)
• Weight (NW/GW) kg: 70/90 | 62/69 | 220/240 | 232/250 | 248/268 | 270/290
• Packing: Plywood

Applications
Designed for blood banks, hospitals, epidemic prevention stations, laboratories in electronics and chemical industries, distant-water fishery and other scenarios requiring ultra-low temperature storage.

Specifications

• Series: LFZ-86W (chest-type ULT freezers)
• Temperature control: -40°C to -86°C, 0.1°C resolution
• Interior: SS304 stainless steel; exterior: cold rolled steel
• Refrigeration: Optimized single-cascade with Danfoss (SECOP) compressors; direct cooling
• Insulation: Up to 150 mm polyurethane foam; double thermal-insulation door
• Alarm & safety: Audible/visual alarms, sensor-fault alarm, password protection, anti-frequent-start
• Interfaces & monitoring: RS232/RS485, USB; optional temperature recorder and WiFi monitoring
• Optional accessories: Paperless recorder, printer, racks, cryo-boxes, backup battery