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-40°C Upright Freezer LUF-B31

-40°C Upright Freezer LUF-B31

-40°C Upright Freezer LUF-B31 is a microprocessor controlled 1008 L capacity ultra-low temperature upright type freezer. With R290 freon-free refrigerant, EBM fan and large finned condenser, features direct cooling method with temperature range of -20 to -40°C and manual defrost. Ergonomic design with high quality steel plates with spray housing, galvanized steel sheet interior with 3 stainless steel shelves, and 2-layer heat insulating foamed door with airbag type outer seal and lock system, offers 130 mm insulation thickness. Incorporated with platinum resistor temperature sensors, digital display and advanced alarm system, has 3 access port and casters. With start-up delay and stop interval protection function, keyboard lock and password protection, and safety door lock design, it has backup battery along with remote alarm contact and RS485 interface.

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Cabinet Type Upright
Capacity 1008 L
Temperature Range -20˚ to -40˚C
Ambient Temperature 16˚ to 32˚C
Cooling Method Direct cooling
Defrost Mode Manual
Refrigerant R290
Climate Class N
Controller Microprocessor
Display Digital display
Compressor 2 pcs
Alarm System High/Low temperature, High ambient temperature, Power failure, Low battery Sensor failure, Condenser overheating alarm, Door ajar, System failure, Main board communication error, Built-in datalogger, USB failure
External Material High Quality Steel plates with spraying
Internal Material Galvanized steel sheet
Insulation thickness 130 mm
Shelves 3 (stainless steel)
Casters 4 (2 leveling feet)
Door lock with Key Yes
External Lock Yes
Keypad Lock Keypad lock with password protection
Access Port 3 pcs. Ø 25 mm
Data Logging/Interval/Recording Time USB/Record every 10 minute / 2 years
Backup Battery Yes
Interface RS485
Power Supply 220 to 240 V 50 Hz
Power 650 W
Power Consumption 8.99 KWh/24hr
Rated Current 8.5 A
Internal Dimension (W×D×H) 1022×696×1378 mm
External Dimension (W×D×H) 1362×1025×2002 mm
Packaging Dimension (W×D×H) 1473×1155×2176 mm
Net Weight 320 kg
Gross Weight 440 kg
  • A microprocessor controlled 1008 L capacity ultra-low temperature upright type freezer
  • R290 freon-free refrigerant, energy-saving and environmentally friendly
  • EBM fan, low noise level and excellent efficiency with high performance
  • Large finned condenser, large area for heat dissipation to ensure uniform conditions
  • Direct cooling method with temperature range of -20 to -40°C and manual defrost
  • High quality steel plates with spray housing, long service life
  • Galvanized steel sheet interior, corrosion resistant and easy-to-clean
  • 3 stainless steel shelves, convenient and efficient storage
  • 2-layer heat insulating foamed door with airbag type outer seal and lock system
  • Platinum resistor temperature sensors, precise temperature control
  • Digital display, convenient setting and monitoring of different parameters
  • Advanced alarm system, ensures reliable and secure operation
  • Start-up delay and stop interval protection function, ensure reliable operation
  • Keyboard lock and password protection, prevent unauthorised adjustment
  • Safety door lock design, secure sample storage
  • Backup battery, remote alarm contact and RS485 interface
  • 3 Access port, allow insertion of different probes
  • 4 Casters with 2 levelling feet, for easy movement
  • Provides efficient storage under targeted refrigeration

The -40°C Upright Freezers are used for scientific research, cryogenic test, blood plasma cryopreservation, low temperature resistance across the research institutes, electronic industry, chemical industry, hospitals, health & disease prevention system, colleges & universities, military enterprises, etc.

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Compare Models

Model Cabinet Type Capacity Temperature Range Ambient Temperature Cooling Method Defrost Mode Refrigerant Climate Class Controller Display Compressor Alarm System External Material Internal Material Insulation thickness Shelves Casters Door lock with Key External Lock Keypad Lock Access Port Data Logging/Interval/Recording Time Backup Battery Interface Power Supply Power Power Consumption Rated Current Internal Dimension (W×D×H) External Dimension (W×D×H) Packaging Dimension (W×D×H) Net Weight Gross Weight
LUF-B11 Upright 439 L -20˚ to -40˚C 16˚ to 32˚C Direct cooling Manual R507 N Microprocessor Digital display 1 pc High/Low temperature, High ambient temperature, Power failure, Low battery, Sensor failure, USB data-log failure, communication error, Door ajar Powder coated material Stainless steel 100 mm 7 (ABS) 4 (2 caster with brake) Yes Yes - 1 pc. Ø 25 mm USB/Record every 10 minute / 2 years Yes - 220 to 240 V 50 Hz - - 3.7 A 650×547×1305 mm 910×755×1945 mm 990×855×2070 mm 175 kg 200 kg
LUF-B30 Upright 90 L -20˚ to -40˚C 16˚ to 32˚C Direct cooling Manual R290 N Microprocessor Digital display 1 pc High/Low temperature, Sensor failure, Door ajar Powder coated material Aluminum plate with spraying 100 mm 3 (ABS) 2+ 2 (leveling feet) Yes - - 1 pc Ø 25 mm - - - 220 V 50 Hz - - 1.33 A 500×485×532 mm 700×669×854 mm 765×735×935 mm 54 kg 60 kg
LUF-B40 Upright 528 L -20 to -40°C 16 to 32°C Direct cooling Manual R290 N Microprocessor Digital display 1 pc. High/Low temperature, High ambient temperature, Power failure, Low battery, Sensor failure, Condenser overheating failure, Door ajar, System failure, Main board communication error, Built-in datalogger USB failure High quality steel plates with spraying Galvanized steel sheet 130 mm 3 (stainless steel) 4 (2 leveling feet) Yes - - 2 pcs. Φ 25 mm USB/Record every 10 minute / 2 years Yes - 220 to 240 V, 50 Hz - - 4.45 A 585×696×1266 mm 930×1041×1947 mm 1035×1165×2158 mm 234 kg 305 kg
LUF-B41 Upright 678 L -20 to -40°C 16 to 32°C Direct cooling Manual R290 N Microprocessor Digital display 2 pcs. High/Low temperature, High ambient temperature, Power failure, Low battery, Sensor failure, Condenser overheating failure, Door ajar, System failure, Main board communication error, Built-in datalogger USB failure High quality steel plates with spraying Galvanized steel sheet 130 mm 3 (stainless steel) 4 (2 leveling feet) Yes - - 3 pcs. Φ 25 mm USB/Record every 10 minute / 2 years Yes - 220 to 240 V, 50 Hz - - 8.37 A 750×696×1286 mm 1090×1025×1955 mm 1203×1155×2171 mm 258 kg 342 kg
LUF-B42 Upright 778 L -20 to -40°C 16 to 32°C Direct cooling Manual R290 N Microprocessor Digital display 2 pcs. High/Low temperature, High ambient temperature, Power failure, Low battery, Sensor failure, Condenser cooling failure, Door ajar, System failure, Main board communication error, Built-in datalogger USB failure High quality steel plates with spraying Galvanized steel sheet 130 mm 3 (stainless steel) 4 (2 leveling feet) Yes - - 3 pcs. Φ 25 mm USB/Record every 10 minute / 2 years Yes - 220 to 240 V, 50 Hz - - 8.47 A 865×696×1286 mm 1205×1025×1955 mm 1320×1155×2171 mm 286 kg 386 kg
LUF-B43 Upright 1008 L -20 to -40°C 16 to 32°C Direct cooling Manual R290 N Microprocessor Digital display 2 pcs. High/Low temperature, High ambient temperature, Power failure, Low battery, Sensor failure, Condenser cooling failure, Door ajar, System failure, Main board communication error, Built-in datalogger USB failure High quality steel plates with spraying Galvanized steel sheet 130 mm 3 (stainless steel) 4 (2 leveling feet) Yes - - 3 pcs. Φ 25 mm USB/Record every 10 minute / 2 years Yes - 220 to 240 V, 50 Hz - - 8.5 A 1022×696×1378 mm 1362×1025×2002 mm 1473×1155×2176 mm 320 kg 440 kg
LUF-B10 Upright 270 L -20˚ to -40˚C 16˚ to 32˚C Direct cooling Manual R290 N Microprocessor Digital display 1 pc High/low temperature, sensor failure, door ajar Powder coated material Aluminum plate with spraying 100 mm 7 (ABS) 2+ 2 (leveling feet) Yes - Yes 1 pc. Ø 25 mm - - - 220 to 240 V 50 Hz - - 2.8 A 500×460×1235 mm 700×640×1792 mm 760×720×1885 mm 90 kg 102 kg
LUF-B20 Upright 450 L -20˚ to -40˚C 16˚ to 32˚C Direct cooling Manual R290 N Microprocessor Digital display 2 pcs. High/Low temperature, High ambient temperature, Power failure, Low battery, Sensor failure, USB data-log failure, communication error, Door ajar Powder coated material Aluminum plate with spraying 80 mm 6×2 (ABS) 4 (2 caster with brake) Yes - - 2 pcs. Ø 25 mm USB/Record every 10 minute / 2 years Yes - 220 to 240 V 50 Hz - - 4.5 A 650×570×627 mm (×2) 810×735×1960 mm 895×820×2127 mm 144 kg 156 kg
LUF-B23 Upright 528 L -20˚ to -40˚C 16˚ to 32˚C Direct cooling Manual R507 N Microprocessor Digital display 1 pc High/low temperature, power failure, open door, condenser cooling failure, alarm system failure, main board communication error, high ambient temperature High Quality Steel plates with spraying Galvanized steel sheet 130 mm 3 4 (2 leveling feet) Yes Yes Keypad lock with password protection 2pcs. Ø 25 mm USB/Record every 10 minute / 2 years Yes - 220 V 50 Hz - 4.67 KWh/24hr 2.66 A 585×696×1266 mm 930×1041×1947 mm 1035×1165×2145 mm 234 kg 272 kg
LUF-B31 Upright 1008 L -20˚ to -40˚C 16˚ to 32˚C Direct cooling Manual R290 N Microprocessor Digital display 2 pcs High/Low temperature, High ambient temperature, Power failure, Low battery Sensor failure, Condenser overheating alarm, Door ajar, System failure, Main board communication error, Built-in datalogger, USB failure High Quality Steel plates with spraying Galvanized steel sheet 130 mm 3 (stainless steel) 4 (2 leveling feet) Yes Yes Keypad lock with password protection 3 pcs. Ø 25 mm USB/Record every 10 minute / 2 years Yes RS485 220 to 240 V 50 Hz 650 W 8.99 KWh/24hr 8.5 A 1022×696×1378 mm 1362×1025×2002 mm 1473×1155×2176 mm 320 kg 440 kg
LUF-B22 - 270 L - - - Manual R290 - Microprocessor Digital display 1 - - - 100 mm 7 (ABS) 2+ (2 leveling feet) - Yes - 1pcs. Φ 25 mm - - - - - - - - - - - -
LUF-B24 - 678 L - - - Manual R507 - Microprocessor Digital display 2 pcs - - - 130 mm 3 (stainless steel) 4 (2 leveling feet) - Yes - 2pcs. Φ 25 mm - Yes - - - - - - - - - -
LUF-B25 - 778 L - - - - R507 - - Digital 1 pc - - - 130 mm - - - - - - - - - - - - - - - - - -
LUF-B21 Upright - -20°C to -40°C - - Manual CFC Free - - LED - - - - - 4 - - - - - - - - 220 V to 240 V /50 Hz to 60 Hz 300 W - - 508×455×1137 mm 673×676×1630 mm - 113 kg 125 kg

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