Circulating water bath LSRB series

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Overview
Refrigerated circulating heating/cooling water bath designed for magnetic stirring of reaction vessels. Provides an alternative to dry ice and liquid nitrogen for low-temperature reactions and precise high-temperature control for flasks, beakers and test tubes.

Usage
The LSRB series is intended for laboratories, hospitals, universities and research institutes for biochemical and enzymatic experiments, sample incubation, temperature-controlled reactions and analytical testing. Models provide integrated heating and refrigeration with digital control and stirring capability.

Characteristics

• Digital temperature setting and display with high precision (stability ±0.2°C).
• Fully enclosed magnetic stirrer to ensure stable mixing.
• Optional dual stirring with internal vessel stirring to maintain uniform specimen temperature.
• Adjustable slot cover to reduce refrigerant loss and improve efficiency.
• Equipped with a lever for fixing burettes, sensors and auxiliary devices.
• High-reliability international brand compressor.
• Service-friendly drain port for easy fluid replacement.

Standard Type

• Jewelry blue LCD control panel
• 5-stage program control for up to five different time settings
• Remote connection to a computer for monitoring and control
• Over-temperature alarm

Technical Specifications
Model: LSRB-4002 | LSRB-4010 | LSRB-4005 | LSRB-3010 | LSRB-3050 | LSRB-2005
Temp. Range (°C): -40 ~ 99 | -40 ~ 99 | -40 ~ 99 | -30 ~ 99 | -30 ~ 99 | -20 ~ 99
Temp. Stability (°C): ±0.2 (all models)
Bath Volume (L): 2 | 10 | 5 | 10 | 50 | 5
Bath Material: SUS304 (all models)
Bath Opening (mm): Φ140×100 | Φ210×250 | Φ210×130 | Φ210×250 | Φ400×280 | Φ210×130
Max flask capacity (ml): 500 | 2000 | 2000 | 2000 | 20000 | 2000
Cooling Power (W) at 10°C: 290~10 | 1880 | 1300 | 1700 | – | 1150
Cooling Power (W) at 0°C: 1580 | 1100 | 1200 | 7500 | 880 | 880
Cooling Power (W) at -10°C: 1360 | 950 | 700 | 4600 | 600 | 600
Cooling Power (W) at -20°C: 870 | 610 | 370 | 2570 | 320 | 320
Cooling Power (W) at -30°C: 450 | 310 | 150 | 1040 | – | –
Cooling Power (W) at -40°C: 20 | 10 | – | – | – | –
Refrigerant: R404a | R404a | R404a | R22 | R22 | R22
Heating Power (W): 300 | 1500 | 1500 | 1500 | 4500 | 1500
Flow Rate (L/min): – | 20 | 20 | 20 | 30 | 20
Lift (m): – | 5 ~ 7 | 5 ~ 7 | 5 ~ 7 | 10 ~ 12 | 5 ~ 7
Stirring: Magnetic stirrer, 100 ~ 1000 rpm (all models)
Ambient Temp. (°C): 5 ~ 25
Power Supply (V/Hz): 1-phase, 220/50
Safety Protection: Delay, leakage, overcurrent, overheating
Outer Material: SPCC steel with powder coating
Overall Power (W): 820 | 2400 | 2200 | 2420 | 7635 | 2100
Weight (kg): 35 | 84 | 56 | 50 | 300 | 41
Dimensions (mm) (L×W×H): 466×406×420 | 580×455×930 | 415×365×740 | 505×365×797 | 1250×670×1051 | 415×365×740

Technical Summary

• Series: LSRB (models: LSRB-4002, LSRB-4010, LSRB-4005, LSRB-3010, LSRB-3050, LSRB-2005)
• Temperature control range from -40°C to +99°C (model-dependent)
• Digital temperature control and display; stability ±0.2°C
• Bath: SUS304 stainless steel; chassis: SPCC with powder coating
• Magnetic stirring 100–1000 rpm; optional dual stirring
• Protections: delay, leakage, overcurrent, overheating
• Power supply: single-phase 220V 50Hz