Buchi F-305 Recirculating Chiller
Temperature Range
-10°C to +25°C
Cooling Capacity
550W at 15°C
Tank Capacity
3L
- Closed-loop cooling system mitigates water usage
- Consistent and stable temperature control for reliable performance
- ECO-mode reduces energy consumption and heat output during idle periods
- Automatic standby function when not in active use
- Temperature lock prevents unintentional setting changes
- Optimized performance through automatic adjustment of operating conditions
- Efficient operation improves cooling performance while reducing emissions
- Environmentally conscious design conserves energy and resources
- Compact design suitable for laboratory environments
- Designed for rotary evaporation and general lab cooling applications

Designed with efficiency in mind, the F-305 features an integrated ECO-mode that reduces energy consumption and heat output by automatically switching to standby when not in active use. This results in improved operational efficiency and a more controlled laboratory environment. With rapid startup capability and stable temperature maintenance, this recirculating chiller helps streamline processes and maintain consistent cooling performance, making it a practical solution for laboratories seeking reliability and reduced resource usage.
All of our equipment will be fully tested to perform at factory specifications before being shipped.
The Buchi F-305 Recirculating Chiller includes:
- Power Cord
- Operator's Manual
- Full 180 Day Parts and Labor Warranty
Buchi F-305 Recirculating Chiller Specifications
| Temperature Range | -10°C to +25°C |
| Cooling Capacity | 550W at 15°C; 440W at 10°C; 250W at 0°C; 80W at -10°C |
| Hysteresis | ± 1°C |
| Temperature Reading Resolution | ± 0.1°C |
| Reservoir Volume | 3L |
| Refrigerant | R513a |
| Maximum Pressure | 0.6 bar |
| Maximum Pressure Flow Rate | 2.5 L/min |
| Overall Dimensions (W x D x H) | 11.02 × 15.75 × 19.69 in. (280 x 400 x 500 cm) |
| Weight |
68.4 (31 kg) |
| Electrical Requirements | 115V, 60Hz |
- Inspect display for dimming or dead pixels and replace as necessary to maintain clear visual feedback
- Verify functionality of all buttons and input devices, ensuring reliable and responsive control
- Check that all external hosing connections are secure and properly installed to prevent leakage
- Test unit flow rate on a closed-loop system to confirm consistent fluid dynamics
- Examine all external surfaces for leaks, confirming a sealed and contained system
- Inspect internal components for any signs of leaks to ensure system integrity
- Verify power supply output for accurate voltage delivery per operational specifications
- Inspect all internal wiring, checking for any frays, tears, or compromised insulation
- Replace internal filters to maintain optimal fluid purity and system performance
- Confirm that the fan operates at proper speeds to provide effective cooling
- Verify compressor functionality for consistent performance and cooling efficiency
- Test cooling capacity, confirming it meets performance specifications at 20°C
- Measure water pump output to confirm correct PSI for stable fluid flow
- Determine the lowest achievable temperature, verifying against manufacturer standards
- Ensure cosmetic condition meets standards with no damage affecting functionality or aesthetics
Technician Inspection and Recertification Checklist: Recirculating Chiller
The Following Checklist Is to Be Performed on All Incoming and Outgoing Equipment| Task | Completed? | Remarks? |
| Inspect display for dimming or dead pixels, replace if necessary | Completed | |
| Verify functionality of all buttons and input devices | Completed | |
| Ensure external hosing connections are secure | Completed | |
| Test flow rate on closed-loop system | Completed | |
| Inspect for external leaks | Completed | |
| Inspect for internal leaks | Completed | |
| Verify power supply output voltage | Completed | |
| Inspect internal wiring for frays or tears | Completed | |
| Replace internal filters | Completed | |
| Confirm fan functionality | Completed | |
| Verify compressor functionality | Completed | |
| Test cooling capacity at 20°C | Completed | |
| Confirm water pump PSI output | Completed | |
| Determine lowest achievable temperature | Completed | |
| Ensure cosmetic condition meets standards | Completed |

Click Here to View the Technical Specs for the Buchi F-305 Recirculating Chiller