Recirculating chiller B-741 - Good

B-741 Distillation Chiller: Compact, Cost-Efficient Cooling for Rotary Evaporation

The Büchi B-741 Distillation Chiller is part of Büchi's renowned Chiller Line, offering a straightforward and efficient solution for cooling rotary evaporators. It is particularly suited for use with one or two bench-top rotary evaporators or a 20L rotary evaporator, making it a versatile option for a wide range of laboratory setups. This chiller has been engineered with cost-efficiency and environmental friendliness in mind, allowing laboratories to reduce water consumption and operational costs.

By using the B-741 chiller, labs can significantly reduce their environmental footprint. The system saves up to 300 liters of mains water per day, contributing to both cost savings and a more sustainable operation. Additionally, the B-741 improves process safety by maintaining a constant low cooling temperature, which reduces solvent emissions and provides more consistent evaporation results. This is particularly beneficial for sensitive processes where solvent recovery and environmental safety are priorities.

The chiller is designed to maintain a fixed cooling temperature of 10°C, which is optimal for most evaporation applications. Despite being a basic model, the B-741 delivers high reliability and ease of use, providing essential functionality without unnecessary complexity. Its compact form factor, combined with castors for easy mobility, allows users to move the unit around the laboratory as needed, adding flexibility to its deployment.

In terms of durability, the B-741’s robust stainless steel housing ensures that it can withstand the challenges of harsh laboratory environments. It is built to last, providing reliable performance over the long term. Its design and functionality strike a balance between cost-effectiveness and quality, making it an ideal solution for labs that need an affordable yet reliable cooling option.

The B-741 uses a capillary regulator to control its temperature, ensuring consistency within a range of +/- 2 K. The unit offers a cooling capacity of 400 W at 10°C and 500 W at 15°C, providing ample cooling power for small to medium-sized evaporation tasks. Additionally, its refrigerant system uses R134a, which is a more environmentally friendly option.

 The Büchi B-741 Distillation Chiller is an essential instrument for labs seeking cost-effective and reliable cooling. Its environmental benefits, durability, and ease of use make it an ideal choice for labs using rotary evaporators that require consistent and safe cooling solutions. 

• Mains connection: 230 VAC / 50-60 Hz +/- 10% or 120 VAC / 60 Hz +/- 10%
• Power consumption: 600 W
• Temperature range: Fixed at 10°C
• Temperature constancy: +/- 2 K
• Cooling capacity:
  • At 10°C: 400 W +/- 10%
  • At 15°C: 500 W +/- 10%
• Control type: Capillary regulator
• Bath capacity: 3.5 liters
• Pump output: Max. 2.5 liters/min
• Pump pressure: Max. 0.6 bar
• Refrigerant: R134a
• Dimensions (WxHxD): 280 x 360 x 545 mm
• Weight (empty): 26 kg
• Ambient temperature range: +15°C to +32°C
• Installation/overvoltage category: II
• Pollution degree: 2
• Ambient conditions: Indoor use only
• Maximum relative humidity: 80% at 30°C, decreasing linearly to 50% at 40°C