Sihauli Vaccine Freezers (SLF Series)
Sihauli Lab World Vaccine Freezers are specially designed to meet the critical storage requirements of biological samples, specimens, and vaccines, along with ice pack freezing for cold chain maintenance.
Built for reliability in demanding environments, these units are tropicalized to perform efficiently under ambient temperatures of 10°C to 43°C and up to 95% RH humidity.
 
Salient Features
🧊 High Efficiency Insulation
Rounded inner chamber with high-density insulated door & cabinet minimizes temperature loss
⚙️ Robust Refrigeration System
Hermetically sealed compressor with CFC-free refrigerant and 99.97% pure copper tubing
🔐 Secure Operation
Handle with key lock & password protection for controlled access
📦 Optimized Storage
Wired mesh baskets ensure proper air circulation
⚡ Smart Protection System
Time delay compressor start with overload cut-off relay
🚨 Audio / Visual Alarms
High / Low temperature
Power failure
Compressor & power status
💧 User-Friendly Design
Drain outlet for condensate water
Provision for defrost
Adjustable legs (70–105 mm height)
 
Optional Accessories
🌡️ Alcohol Stem Thermometer (-40°C to 50°C) with NABL calibration
🔌 Automatic Voltage Stabilizer (1 KVA)
Overload protection
Under/over voltage cut-off
Short circuit protection
(Complies with WHO PQS/E07 standards)
 
Technical Specifications
Parameter
SLF 125
SLF 240
Internal Volume (Liters)
125
220
Number of Baskets
80
150
Internal Dimensions (mm)
543 × 533 × 740
890 × 560 × 590
External Dimensions (mm)
710 × 721 × 903
1060 × 800 × 760
Temperature Range
-15°C to -25°C
 
Insulation
80 mm (CFC-free PUF)
 
Temperature Control
Microprocessor
 
Display
7 Segment LED (with decimal)
 
Internal Body
SS 304 (Non-corrosive, Non-magnetic)
 
External Body
Pre-coated GI Steel
 
Noise Level
< 65 dB(A)
 
Sensor
PT-100 (±0.5°C accuracy)
 
Power Supply
220–240 V, 50 Hz, Single Phase