Controlled Freezing and Thawing
Our FARRAR blast freezer models offer the highest consistency and repeatability in fast, controlled freezing and thawing processes. Cooling is achieved through forced air circulation ensuring efficient cooling from ambient temperature to the desired temperature. The forced air circulation extends the rapid cooling process to the liquid core, preventing false freezing points and optimizing the freezing process.
Execute freezing processes in hours instead of days
With our blast freezers, you can repeatably, precisely, and quickly freeze and thaw samples. The unique convection-based controlled freezing and thawing process eliminates uncertainties and allows temperature-specific conditioning to meet processing and shipping protocols for pharmaceutical products.
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Wide temperature range for almost any application (-80 ˚C to +40 ˚C)
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Air or water-cooled options available
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Uniform, repeatable results for quality control
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Cycle start/stop with +/-1 ˚C product temperature tolerance
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The considerable and powerful cooling capacity reaches steady state in 38 minutes (empty chamber) and can cool 100 liters to -80 °C in <12 hours.
Specifically designed for bioprocess applications, our FARRAR blast freezer shortens freezing and thawing times from days or weeks to hours.
Air convection cooling for maximum performance
When it comes to freezing or thawing samples, speed and efficiency are crucial. One way to achieve this is through forced air circulation, which not only rapidly freezes samples to the desired temperature but also ensures uniform cooling throughout the container. This method also prevents false freezing points, making it a reliable option for processing and shipping various medicines or substances.
Forced air circulation is not only effective but also extremely versatile: it is suitable for containers of different types and sizes, such as carboys, disposable bags, bottles, or racks with vials. In addition, the technology can be configured to meet the specific requirements of various batches.
To further optimize the process, solid-phase conditioning is used to maximize latent heat, ensuring greater energy storage and the longest cooling capacity over time. Finally, flexible material handling solutions are available, ensuring smooth and efficient handling of both the process and the containers.
Concrete advantages of our circulation blast freezer:
- Easy setup of the chamber and control/use of one of three freeze/thaw profiles
- No process-accompanying containers or trays required
- Adjustable shelves for process optimization
- Allows rapid, efficient, controlled freeze/thaw process
- Allows rapid, uniform freezing/thawing of proteins or products
- Increases yield by 40-90% and reduces the freeze/thaw phase to hours instead of days or weeks
- Ensures reproducible results
Technical Data
Chamber volume | 659.8 liters |
Temperature range | -80 ˚C to +40 ˚C |
Cool down empty chamber | < 38 minutes from +25 ˚C to -80 ˚C |
100L load from +25 ˚C to -80 ˚C | < 12 hours |
Temperature uniformity air | +/- 2.0 ˚C |
Temperature uniformity product | +/- 1.0 ˚C |
Certification | CE certified models UL field certification available |
Cooling System
Heat transfer | Convection Airflow evaporator |
High pressure stage | R-449A |
Low pressure stage | R-508B |
Defrosting | Defrosting - manual start / automatic conclusion |
Heat dissipation (air-cooled) | 38,000 BTU per hour (11 kW per hour) |
Heat dissipation (water-cooled) | 1,700 BTU per hour (0.5 kW per hour) |
MODEL 4000-LC
Programmable LCD control | IDEC-PLC with 12-inch display and 4 outputs (general alarm, profile running, profile completed, door opened), 0-10VDC outputs for chamber sensor and optional second sensor. |
Sensor | RTD PT100 Din A |
Dry contacts | Standard (C, NO, NC) |
MODEL 4000
Fixed program control | Watlow PID/Standard (NO, NC, C) with 4 outputs (General alarm, Profile running, Profile completed, Door opened), 0-10VDC outputs for chamber sensor and optional second sensor. |
Sensor | RTD PT100 Din A |
Dry contacts | Standard (C, NO, NC) |