Compact laboratory chiller F series

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Overview
The BÜCHI Recirculating Chiller F-305 / F-308 / F-314 / F-325 are laboratory recirculating chillers engineered to provide controlled cooling for laboratory equipment such as rotary evaporators, parallel evaporators, Kjeldahl analyzers and extraction systems. Key capabilities include central temperature setting, ECO-mode for reduced energy use, automatic start/stop when integrated with BÜCHI systems, and interface coordination (I-300 / I-300 Pro) to optimize distillation throughput and limit solvent emissions.

Key facts

• Cooling capacity at 10 °C (range across models): 440 – 2200 W
• Temperature range: -10 – +25 °C
• Tank capacity (range across models): 3 – 9 L
• Refrigerant (all models): R513a
• Designed for integration with Rotavapor® R-300 and Interface I-300 / I-300 Pro

Features

• ECO-mode: switches to stand-by to save energy and reduce heat emission when not in use.
• Centralised temperature control: set temperature directly on the chiller or via the I-300 / I-300 Pro interface.
• Dynamic cooling coordination: with Rotavapor® R-300 the vacuum and process parameters are adjusted to maximise distillation performance.
• Closed-loop coolant circuit: minimises coolant waste and improves sustainability and cost-efficiency.
• Automated operation: plug & play integration with BÜCHI systems enables automatic start/stop and synchronized workflows.

Integration & usage
When integrated with the Rotavapor® R-300 and the I-300 / I-300 Pro interfaces, these chillers provide central temperature control, automatic start/stop sequences and dynamic vacuum adjustment to accelerate distillation cycles and reduce solvent emissions. They support workflows across evaporation, extraction and Kjeldahl analyses, improving throughput and reproducibility in laboratory processes.

Technical specifications

• Series name: F series (Recirculating Chiller F-305 / F-308 / F-314 / F-325)
• Refrigerant (all models shown): R513a
• F-305: Cooling capacity @ 0 °C: 250 W; @ 10 °C: 440 W; @ 15 °C: 550 W; Temperature range: -10 to +25 °C; Tank volume: 3 L; Dimensions (H × W × D): 400 × 280 × 500 mm
• F-308: Cooling capacity @ 0 °C: 450 W; @ 10 °C: 730 W; @ 15 °C: 900 W; Temperature range: -10 to +25 °C; Tank volume: 4.5 L; Dimensions (H × W × D): 580 × 400 × 500 mm
• F-314: Cooling capacity @ 0 °C: 720 W; @ 10 °C: 1150 W; @ 15 °C: 1400 W; Temperature range: -10 to +25 °C; Tank volume: 6.5 L; Dimensions (H × W × D): 580 × 1070 × 650 mm
• F-325: Cooling capacity @ 0 °C: 1400 W; @ 10 °C: 2200 W; @ 15 °C: 2500 W; Temperature range: -10 to +25 °C; Tank volume: 9 L; Dimensions (H × W × D): 670 × 400 × 650 mm