Circulating water bath LSRB series

agitatinglaboratorywith cooling system

Usage:
LSRB series heating and cooling circulation stirring reaction water bath designed for controlled low- and high-temperature reactions, offering an alternative to dry ice or liquid nitrogen for many low-temperature protocols. Suitable for flasks, beakers and test tubes for cooling, heating and thermostatic control. Commonly used in hospitals, research laboratories, universities and biochemical/enzymatic experiments, as well as detection and identification workflows.

Characteristics:

• Digital temperature setting and display with precise control.
• Fully enclosed magnetic stirrer for stable mixing; adjustable 100–1000 rpm depending on model.
• Optional built-in dual stirring for internal vessel circulation to ensure uniform sample temperature.
• Adjustable bath opening to reduce refrigerant consumption.
• Accessories interface with lever for fixing burettes, sensors and auxiliary devices.
• International-brand compressor options for reliable low-temperature performance.
• Convenient bath fluid port for easy filling and replacement of bath medium.

Standard Type:

• Jewelry-blue LCD control panel on standard units.
• 5-stage program control for up to five timed steps.
• Remote computer connection available for data logging and control.
• Over-temperature alarm and safety interlocks.

Technical Specifications (table representation):
Model | LSRB-4020 | LSRB-4030 | LSRB-8002 | LSRB-8005 | LSRB-8020 | LSRB-8050 | LSRB-1005 | LSRB-1010
Temp. Range (°C) | -40 ~ 99 | -40 ~ 99 | -80 ~ 10 | -80 ~ 99 | -80 ~ 99 | -80 ~ 99 | -100 ~ -60 | -100 ~ -60
Temp. Stability (°C) | ±0.5 | ±0.5 | ±2 | ±0.2 | ±0.5 | ±0.5 | ±2 | ±2
Bath Volume (L) | 20 | 30 | 2 | 5 | 20 | 50 | 5 | 10
Bath size (D×H) mm | Φ280×300 | Φ320×235 | Φ160×105 | Φ250×130 | Φ350×220 | Φ500×235 | Φ210×180 | Φ210×250
Bath Opening (mm) | (not specified) | (not specified) | Φ140 | Φ210 | Φ280 | Φ400 | (not specified) | (not specified)
Bath Material | SUS304 | SUS304 | SUS304 | SUS304 | SUS304 | SUS304 | SUS304 | SUS304
Max flask load (ml) | 5000 | 10000 | 500 | 2000 | 5000 | 20000 | 2000 | 2000
Heating Power (W) | 1500 | 3600 | – | 1500 | 2000 | 4500 | – | –
Cooling power (W) (selected temps shown below) | 10°C: 2480 / 0°C: 2180 / -10°C: 1820 / -20°C: 1200 / -30°C: 600 / -40°C: 50 | 10°C: 4780 / 0°C: 4180 / -10°C: 3670 / -20°C: 2310 / -30°C: 1100 / -40°C: 480 | (varies by model) | (varies by model) | (varies by model) | (varies by model) | (varies by model) | (varies by model)
Flow Rate (L/min) | 20 | 20 | – | – | 20 | 30 | – | –
Lift head (m) | 5~7 | 5~7 | – | – | 4~6 | 10~12 | – | –
Refrigerant | R404a | R404a | R404a, R23 | R404a, R23 | R404a, R23 | R404a, R23 | Mixed | Mixed
Stirring | Magnetic stirrer, 100 ~ 1000 rpm (models vary) | Magnetic stirrer, 100 ~ 1000 rpm (models vary) | Magnetic stirrer, 100 ~ 1000 rpm (models vary) | Magnetic stirrer, 100 ~ 1000 rpm (models vary) | Magnetic stirrer, 100 ~ 1000 rpm (models vary) | Magnetic stirrer, 100 ~ 1000 rpm (models vary) | Magnetic stirrer, 100 ~ 1000 rpm (models vary) | Magnetic stirrer, 100 ~ 1000 rpm (models vary)
Ambient Temp. (°C) | 5 ~ 25 | 5 ~ 25 | 5 ~ 25 | 5 ~ 25 | 5 ~ 25 | 5 ~ 25 | 5 ~ 25 | 5 ~ 25
Power Supply (V/Hz) | 220/50 (common) | 220/50 | 220/50 | 220/50 | 220/50 | 220/50 | 220/50 | 380/50 (some models)
Overall Power (W) | 2700 | 6088 | 1000 | 3160 | 4500 | (varies) | 800 | 2050
Outer Material | SPCC steel with powder coating
Safety Protection | Delay, leakage, overcurrent, overheating protection
Dimensions (L×W×H mm) | 580×455×990 (LSRB-4020) | 665×545×1010 (LSRB-4030) | 600×400×495 (chest) / 450×355×830 (floor) (LSRB-8002) | 550×485×975 (LSRB-8005) | 905×750×926 (LSRB-8020) | 1010×785×1100 (LSRB-8050) | 765×605×965 (LSRB-1005) | 900×700×1000 (LSRB-1010)
Weight (kg) | 95 | 120 | 68 | 100 | 170 | 300 | 125 | 150

Features / Technical specifications:

• Series / Models: LSRB series — LSRB-4020, LSRB-4030, LSRB-8002, LSRB-8005, LSRB-8020, LSRB-8050, LSRB-1005, LSRB-1010.
• Temperature ranges: models cover approx. -100°C up to +99°C depending on model; common ranges include -80°C to +99°C and specialized -100 ~ -60°C units.
• Temperature stability: typically ±0.2°C to ±2°C depending on model.
• Bath volumes: from 2 L up to 50 L across available models.
• Bath material: SUS304 stainless steel.
• Stirring system: enclosed magnetic stirrer, adjustable 100–1000 rpm; optional dual internal stirring available.
• Cooling source: refrigerants include R404a, R23 or mixed refrigerants depending on low-temperature requirement.
• Controls and interfaces: digital temperature setting and display; jewelry-blue LCD on standard models; 5-stage program control; remote PC connection available.
• Protections: built-in delay, leakage, overcurrent and overheating protections.
• Construction: SPCC steel housing with powder coating.
• Applications: controlled heating/cooling and stirring for chemical reactions and biological experiments; suitable as an alternative to dry ice or liquid nitrogen for many low-temperature procedures.