All equipments are quite good but are different from each other in terms of values of (low) temperature, volume and capability to pump large volumes of vapours at low pressure. We have a Heto Powerdry machine working at -90°C with a primary pump of 5 m3/h and we are quite satisfied with it.

Just look at Heto powerdry in Google and you'll see how they look like.

Alain

for characterization and nanoparticle confirmation purpose u need lyophilize sample better go with same or brief your purpose of ur work, then we can give suggestion.

for characterization and nanoparticle confirmation purpose u need lyophilize sample better go with same or brief purpose of ur work, then we can give suggestion.