Vacuum concentrators, also known as blow-down evaporators, offer an efficient alternative to traditional rotary evaporation systems. These devices are designed to process multiple samples simultaneously, making them ideal for laboratories seeking high-throughput solutions. By utilizing vacuum technology, heating, and rotation, they achieve rapid and automated evaporation of liquid samples, enhancing workflow efficiency.
Key Features and Benefits
These concentrators leverage the relationship between pressure and boiling point: reducing pressure lowers the boiling point of liquids, enabling faster evaporation at lower temperatures. This is particularly advantageous for protecting heat-sensitive components within samples. Additional benefits include improved sample recovery, reduced human error, and enhanced analytical accuracy. Many models also support solvent recovery, providing an environmentally friendly option for laboratory use.
 Available Models
– Flexible High-Throughput Model: This version accommodates 16 sample positions, compatible with 200ml and 50ml vials. Samples are fully immersed and heated in a water bath for optimal evaporation efficiency. It features a snap-lock safety design for quick and secure access, allowing individual samples to be added or removed without interrupting the process. The transparent evaporation chamber ensures clear visibility, while independent sealing and discharge pipelines prevent liquid transfer issues. A 10-inch touchscreen control system and dual-condenser tower design enable dual recovery of solvent vapor and exhaust gas.
– Large-Volume Model: Tailored for extraction applications, this model supports up to 12 samples, each with a maximum capacity of 900ml. It replaces multiple rotary evaporators, saving valuable lab space and resources. The water bath fully surrounds the samples for higher evaporation efficiency, and a safety lock ensures fast and secure operation. With a solvent recovery rate exceeding 85% for 500ml of petroleum ether, it combines performance with sustainability.
– High-Capacity Model: Designed for larger workflows, this version offers 48 sample positions, compatible with 60ml vials or 50ml centrifuge tubes. It simplifies laboratory processes, making it ideal for applications like pesticide residue analysis, food additive testing, acid determination in food, and extraction tasks.
Why Choose Vacuum Concentrators?
These systems are widely used for preparing environmental samples, natural products, food and agricultural samples, and heat-sensitive materials. Their ability to handle multiple samples at once, combined with energy-saving features and high solvent recovery rates, makes them a versatile and eco-conscious choice for modern laboratories.
