Recirculating chiller DL30-2500CE

Solving Analytical Lab Cooling Challenges with the DL30-2500CE

Last winter, our analytical lab faced a challenge when running overnight reactions at -25°C. Standard chillers couldn't maintain stability, causing temperature drift that ruined expensive reagents. We needed something with serious cooling power and rock-solid temperature control.

The DL30-2500CE delivers 2500W of cooling capacity across a working range from -30°C to 5°C. Temperature stability holds within ±2°C, which matters when you're running temperature-sensitive crystallizations or maintaining consistent conditions for jacketed reactor operations that span multiple hours. The 40-liter reservoir provides thermal mass that buffers against sudden load changes, something you'll appreciate when cooling jacketed vessels or multiple instruments simultaneously.

Industrial-Grade Thermal Control for Complex Processes

• Cooling capacity: 2500W at maximum load conditions
• Operating range: -30°C to 5°C with ±2°C stability
• Circulation pump: 30 liters per minute flow rate
• Reservoir volume: 40 liters for extended runtime
• Refrigerant: R404A for low-temperature performance
• Power requirements: 380V/50Hz three-phase
• Dimensions: 650x1055x1070 mm footprint, 195 kg weight

Running costs matter when equipment operates 12-16 hours daily. The compressor cycles intelligently based on actual cooling demand rather than running continuously. During a typical distillation setup with a Rotary evaporator R-1050CE, we measured approximately 30% lower power consumption compared to our older chiller model. The digital controller adjusts compressor speed and monitors refrigerant pressure, preventing the energy waste that comes from overshooting temperature targets.

Handling Multi-Instrument Cooling Demands

We've connected this unit to both 10L and 20L jacketed reactor systems without issues. The 30 L/min pump flow handles the circulation demands of larger vessels, though you'll want to verify tubing diameter matches your setup for optimal heat transfer. For smaller-scale work, consider the Recirculating chiller DL30-700CE or Recirculation cooler DL30-300CE if your cooling loads stay under 1000W—they'll save on power consumption and floor space.

When processing low-boiling solvents on a Rotary evaporator R-1020CE, maintaining condenser temperatures below -20°C prevents solvent loss and speeds up distillation cycles. The DL30-2500CE handles this continuously while also supporting analytical instruments requiring stable thermal management. Labs running multiple evaporators simultaneously benefit from the high flow rate and large reservoir capacity.

Winter Operation and Year-Round Temperature Stability

Check refrigerant levels monthly and clean the condenser coils quarterly. Dust buildup reduces heat exchange efficiency and forces the compressor to work harder. Keep the ambient temperature below 30°C in your lab space—we learned this after a summer HVAC failure caused the chiller to struggle maintaining setpoints.

For labs needing ultra-low temperatures below -30°C, the Recirculating chiller DLSB-5/20A extends down to -80°C but sacrifices some cooling capacity. The 195 kg weight and robust construction mean this isn't a benchtop unit. Plan for floor placement near your reactor station or distillation area. CE certification and ISO 9001 compliance confirm it meets European safety standards, which matters for labs maintaining quality management systems.