Heat is always present in labs. Instruments, heaters, and processes add heat constantly. Small temperature shifts can change measurements and ruin runs. Engineers design chillers to stop that from happening. This article explains what a Laborkühlschrank does and how to choose the right one for your work.
 
Learn more:
How to choose an ultra low temperature freezer for your lab
What type of chiller is best for laboratory use
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What Is a Laboratory Chiller

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A laboratory chiller is a compact cooling system that removes heat from lab equipment. It circulates a temperature controlled fluid through a closed loop. The fluid picks up heat at the instrument and delivers it back to the chiller for removal. That loop keeps set point steady and protects sensitive components.
 
Lab chillers differ from large industrial chillers. They are made for precision and low Lärm. They work quietly under benches.
 
Most engineers focus on stability rather than brute force cooling. In many labs, chillers protect expensive optics and detectors. Stable temperature means repeatable data. For many tests, that is more valuable than the lowest possible temperature.
 
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How Does a Laboratory Chiller Work

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The cooling process follows a closed refrigeration cycle. A compressor pressurizes the refrigerant. The refrigerant then gives off heat at the condenser. Next, it expands and cools. Finally, the evaporator transfers cooling to the circulating fluid.
 
Sensors monitor temperature, flow, and pressure at multiple points. A controller reads those signals and makes small, fast adjustments. Modern units use variable speed compressors and PID control. This allows the chiller to respond quickly when a tool kicks in or a test starts.
 
Learn more:
How does an industrial chillers work

Common Applications of Laboratory Chillers

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The lab chiller’s job is repeatability. When experiments repeat with the same settings, results become reliable. Laboratory chillers appear in many settings. Below are typical uses where precision matters.
 
1.Analytical instruments
Spectrometers, chromatographs, and electron microscopes often require stable temperature to keep baselines steady. A chiller stabilizes detectors and prevents thermal drift.
 
2.Laser and photonics systems
Lasers demand tight thermal control to keep beam alignment. Chillers cool laser heads and maintain optics tables at steady temperatures.
 
3.Biotech and pharma
Bioreactors and thermal cyclers benefit from stable coolant temperatures. Small deviations can alter reaction kinetics and lab outcomes.
 
4.Semiconductor test and metrology
Wafer handlers and test platforms need consistent temperatures during measurement. Chillers keep sensors and probes inside tight tolerances.
 
5.Vacuum pumps and reaction setups
Even rotary evaporators and vacuum pumps run better when their cooling source is steady. This reduces maintenance and improves throughput.

How to Choose the Right Laboratory Chiller

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1.Know your heat load
Measure or calculate the steady state heat and the transient spikes. Use the mass flow, specific heat, and expected temperature rise to size the system. Add headroom for peaks. Undersizing leads to drift. Oversizing wastes budget and can cause short cycling.
 
2.Check the temperature range and accuracy
Define the required operating range and the needed stability. For many sensitive tools, aim for stability at or under ±0.1°C. If the process operates near freezing or requires high temps, pick a chiller rated for those conditions and the correct fluid.
 
3.Choose the right coolant and materials
If deionized water is required, select a chiller with stainless steel wetted parts and compatible seals. For lower temperatures, consider glycol blends or specialty heat transfer fluids. Ensure materials resist ion leaching and corrosion.
 
4.Consider footprint and noise
Labs are shared spaces. Pick compact, low noise models with accessible service points. Air cooled units are convenient for labs without external water. Water cooled or remote condenser setups are better when ambient heat must be kept out of the lab.
 
5.Prioritize control and integration
Look for models with precise controllers and clear interfaces. Support for Modbus, RS485, or Ethernet makes integration into lab automation simple. Our engineers recommend units that provide data logging and alarm outputs for lab records.
 
6.Plan for service and parts
Choose manufacturers with responsive support and available spare parts. Local distribution or remote diagnostic capability speeds recovery when a system needs attention.
 
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How to Choose a Spindle Chiller

Get Your Laboratory Chiller

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Selecting a laboratory chiller starts with data. Gather your heat load, target temperature, and any fluid constraints. Our engineers can help turn those numbers into a final spec. We offer both standard laboratory chillers and custom builds to match unusual needs.
 
Contact our engineering team to discuss your application and to receive a tailored recommendation.

Suche

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