- High-Efficiency Heat Exchange: Features a trapezoidal internal thread design combined with M-type high-efficiency heat transfer fins. This advanced engineering increases heat exchange efficiency by up to 30% for more effective cooling.
- Stable & Reliable Refrigeration: Equipped with a high-performance compressor, ensuring consistent cooling capacity and long-term operational stability in demanding environments.
- Hygienic Round Water Tank: The seamless, rounded water tank design eliminates sanitary dead angles, promotes cleaner operation, and reduces the risk of contamination.
- Optimized Temperature Uniformity: Engineered for superior fluid dynamics within the system, maintaining a stable and uniform temperature throughout the process.
- Low-Noise Operation: Incorporates a high-efficiency, low-noise fan, enabling powerful airflow for heat dissipation while maintaining quiet operation on the production floor.
Collection: Heating / Cooling Circulator
Lab1st provides you with comprehensive temperature control equipment, which can be adjusted from -120℃ to 300℃.
Currently we provide 3 standard production lines: Refrigerated (Cooling) Circulators (DL series, DLH series), Heating Circulators (UC series, OBC series) , Heating and Cooling Circulators (DC series, HR series, HRV series). We also provide corresponding customized services, such as adding PLC control functions, etc.
PID temperature control process and accuracy can reach ±0.1°C
The liquid storage tank and circulation pipeline are made of 304 stainless steel with good corrosion resistance.
Multiple protection of overvoltage, delay, overcurrent, overheating, leakage, etc.
Microcomputer control, full digital display, easy to operate.
Heating Circulator
Heating Circulator
Lab1st provides 2 series Heating Circulators--UC Series anf OBC Series to meet the different requirements.
- Lab1st UC series is a hermetic heating circulator with a temperature range from room temperature to 200°C/300°C. The machine adopts electric heating mode, through the circulation pump output heat conduction fluid to heat the materials in the supporting reaction vessel. It is widely used in laboratory, pharmaceutical chemical industry, petrochemical industry and other high temperature environment.
- Desktop design, compact structure
- Open bath for internal / external applications High temperature design, reaching 300℃
- High precision
- Lab1st OBC series is a kind of heating bath circulator, with temperature ranges from RT~99°C or RT~180°C. It can provide heating fluid to jacketed reactors or other devices. Heat transfer fluid can be water or oil according to specific temperature requirements. It is widely used for drying, concentration, distillation, dipping in chemical reagents, dipping medicines and biological products.
- Economical design, reliable quality
- Open bath for internal / external applications
- The circulation pump is powerful and suitable for use with reactors
- Moderate accuracy
Cooling Circulator
Cooling Circulator
Lab1st offers 2 series of Cooling Circulators--DLH series hermetic cooling circulator and DL series cooling bath circulator to meet the different requirements.
- Lab1st DLH series chillers are Hermetic Cooling Circulators with operating temperatures ranging from -20C/-30C/-40C/-80C/-120C to room temperature. The liquid storage tank adopts full hermetic design, which is not easy to absorb moisture at low temperature and prolongs the service life . And the system has an exhaust port that can successfully complete the thermal fluid filling. Moreover, it's with microcomputer control and full digital display, easy to operate. It also with high and low voltage protection, overload protection, over current protection, grounding protection and other protection functions. Note: The ultimate temperature of the chiller is affected by the load, heat preservation effect and the environment of the application site.
- Prevent steam from condensing in the coolant
- Design of plate heat exchanger and small volume liquid tank to achieve rapid refrigeration
- Optional temperature range and cooling capacity
- Lab1st DL series Cooling Bath Circulator has an operating temperature ranging from -20C/-30C/-40C to room temperature. With large capacity open bath and external circulation system, it can be used as a separate chilling tank, and can also provide low temperature coolant externally. The refrigerant outlet is equipped with a pressure gauge to display the refrigerant pressure at the outlet. The system is microcomputer control, full digital display and easy to operate. It also with high and low voltage protection, overload protection, over current protection, grounding protection and other protection functions.
- Simple design, economical and practical
- Open bath for internal / external applications
- Suitable for occasions with low temperature control accuracy, such as the condensation tube of a rotary evaporator
Heating & Cooling Circulator
Heating & Cooling Circulator
Navigating the challenges of precise temperature control requires tools that are both capable and adaptable. Lab1st's three circulator series—DC, HR, and HRV—offer a spectrum of solutions designed to meet your critical requirements without compromise. From benchtop efficiency to expansive thermal performance, explore our range to discover the perfect balance of size, capability, and value for your application.
DC Series Heating Cooling Circulator
The DC series is a compact, open-bath circulator ideal for space-conscious lab environments. With an operating range of -5 °C to 95 °C, it supports both internal and external circulation, enabling precise temperature control inside the bath or with external apparatus. Its intelligent control system ensures rapid heating and stable temperature maintenance. Additionally, the compressor can initiate cooling even at high temperatures, enhancing operational flexibility.
- Desktop design with a small footprint
- Suitable for internal and external circulation
- High temperature stability and control accuracy
- Compressor-assisted fast cooling at elevated temperatures
HRV Series Hermetic Heating Cooling Circulator
Engineered for demanding applications in pharmaceutical, chemical, and biological sectors, the HRV series operates across an extensive temperature range of -100 °C to 200 °C. It incorporates a fully sealed fluid path paired with a high-efficiency plate heat exchanger, minimizing thermal fluid volume while improving heat transfer efficiency for faster heating and cooling rates. The system features an expansion vessel maintained at 60 °C, ensuring that the heat transfer fluid remains stable, reducing moisture absorption and evaporation risks throughout operation.
- Broad operating range with both heating and cooling capabilities
- Comprehensive safety protection: PT100 sensor, overvoltage, delay, overcurrent, overheating, and leakage protection
- Customizable high-power configurations available
- Upgradeable to PLC-based remote control
Industrial Water Chiller
Industrial Water Chiller
As a critical support system for modern manufacturing, the Lab1st LSJ-series industrial water chiller delivers efficient air-cooled heat removal for a wide range of processes. Its core function—providing accurate and stable temperature control—directly translates into tangible benefits on the production floor, including enhanced operational efficiency, extended equipment lifespan, and rigorous maintenance of final product quality and consistency.