Labconco 7522700 Dry Ice Benchtop Freeze Dry System
- 12 valves on a Type 304 stainless steel body
- 1 liter single run capacity
- 1/2 or 3/4 inch flask adapters fit each valve
- 1.92 liter dry ice and solvent center well, with cover
- 1/2 inch vacuum pump port and **3/8 inch** vacuum gauge port
- About -103 F bath temperature from dry ice and a heat transfer solution
Updated 2 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A simple freeze drying setup for a lab that only needs lyophilization now and then and can supply dry ice and a vacuum pump. The listing does not include the pump or gauge, so plan those separately.
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ASIN: B00BWXJHR6Model: 7522700Category: Freeze Dryers
Overview
A laboratory with occasional lyophilization work gets a benchtop manifold cooled by dry ice rather than a mechanical refrigeration unit. The center well holds dry ice and solvent, collects water vapor, and also works as a pre-freezing bath for flasks, serum bottles and ampules.
The dry ice approach suits materials with low eutectic points and holds the equipment to a minimum. The limit is that cooling depends on a steady supply of dry ice and solvent, and the listing names no pump, gauge or flask adapters as included.
Who it's for
A teaching or research bench that freeze dries a few samples at a time and already has a vacuum pump. Labs running frequent or large batches should look at a refrigerated unit instead.
Pros and cons
- Twelve valves for multiple flasks at once
- Type 304 stainless steel construction
- Center well doubles as pre-freezing bath
- Accepts two flask adapter sizes
- Needs dry ice and solvent supplied by the user
- Vacuum pump not listed as included
- Single run capacity is modest
- Weight and footprint not listed
Performance notes
Dry ice cooling alcohol or another heat transfer solution sets the bath temperature, and that cold well condenses water vapor drawn off the samples. Results depend on how well the vacuum pump pulls down the manifold and on keeping the well charged with dry ice for the whole run.
Specifications
| Model | 7522700 |
|---|---|
| Dimensions & fit | |
| Flask Adapter Size | 1/2 or 3/4 inch |
| Capacity & performance | |
| Single Run Capacity | 1 liter |
| Center Well Capacity | 1.92 liters |
| Construction & materials | |
| Material | Type 304 stainless steel |
| Included components | |
| Included | Dry ice and solvent center well with cover |
| Other details | |
| Number of Valves | 12 |
| Vacuum Pump Port | 1/2 inch outside diameter |
| Vacuum Gauge Port | 3/8 inch outside diameter |
| Form Factor | Benchtop |
Frequently asked questions
Is the Labconco 7522700 a refrigerated freeze dryer?
No. It cools with dry ice and a solvent in the center well, so you supply both. The listing also does not mention a vacuum pump, which connects to the 1/2 inch port.
How do I freeze samples before drying on this system?
The center well doubles as a pre-freezing bath. Flasks, serum bottles and ampules are frozen by dipping and rotating them in the well.
What materials is the dry ice freeze dry system meant for?
The listing points to materials with low eutectic points, since dry ice cools the solvent to about -103 F.