Freeze
Dryer and Turbo Freeze Dryer
EMS 750 Freeze Dryer
The EMS 750 Freeze Dryer operates at rotary pump vacuum using a 'Peltier' Thermoelectric stage, with drying temperatures of the order of -60°C, with back-up water cooling at a nominal 15°C. Both the Temperature and the Timer can be pre-selected, and the drying cycle will be completed automatically.
Provision is made at the end of the drying cycle to allow the specimen to assume room temperature, or be subsequently warmed prior to embedding. Disposable desiccant containers are located in the preparation chamber to enhance the water vapor removal, and with a suitable container, the vacuumchamber can be utilized to prepare liquid nitrogen 'slush' for fast freezing.
Features
- Thermoelectric cooling and heating.
- Convenient to use cold stage.
- Accurate temperature and time monitoring and control.
- Automatic drying cycle.
- Modular electronics.
- Clean line design.
- Polycarbonate safety shield.
Specifications
| Instrument Case | 450mm (W) x 350mm (D) x 175mm (H) |
| Work Chamber | Borosilicate Glass 165mm (Dia.) x 125mm (H) |
| Weight | 18Kg |
| Specimen Stage | -60°C to +60°C |
| Vacuum Gauge | ATM to 1 x 10-2-2 mbar |
| Temperature Controller & Monitor | -90°C to +90°C Display Resolution to 0.1°C |
| Timer | 0-999 Hours |
| Supply | 115 volts 60 Hz (12 Amp Max incl pump) 230 volts 50Hz (6 Amp Max incl pump) |
| Services | Water Cooling at nominal 15°C |
| Vacuum Pump (Recommended) |
Complete with vacuum hose and oil mist filter 85L/Min |
| Size | 470mm (L) x 150mm (W) x 250mm (H) |
| Weight | 20Kg |
Ordering Information
| 91080 | EMS 750 Freeze Dryer complete with accessories | POR | Quote |
| 91005 | Rotary Vacuum Pump | 2,700.00 | Add to Cart |
Replacement Parts
| 91013 | Glass cylinder 165mm (6") | 175.00 | Add to Cart | |
| 91014 | "L" Gasket to suit 165mm ( 6") cylinder | 1 pair | 95.00 | Add to Cart |
| 91085 | Desiccant Containers (set of 3) | 10.00 | Add to Cart | |
| 91086 | Polystyrene Slushing Pot | POR | Quote |
Optional Accessories
| 91040 | EMS 7640 Carbon Coating Attachment | POR | Quote |
For more information on Freeze Drying, please see Freeze Drying Principles.
EMS 775 Turbo Freeze Dryer
The EMS 775 Turbo Freeze Dryer operates at temperatures down to -140°C and employs a Turbomolecular pumping unit, backed by a Rotary Vacuum pump. The lower temperatures are achieved by using a Liquid Nitrogen fed Cold Stage.
The pre-frozen specimens are admitted into the cooled stage of the drying chamber through a vacuum gate valve which interfaces to the specimen transfer chamber.
The system incorporates both Time and Temperature Control, and at the end of the drying period, the stage may be heated prior to specimen removal. The system also has facilities for purging with Nitrogen Gas.
For extended drying periods, an auto top-up device can be provided as an option to continuously 'fill' the chamber's liquid nitrogen dewar.
The option of a custom designed specimen freezing chamber to produce 'slushy' sub cooled liquid nitrogen is available which also interfaces to the specimen transfer chamber.
The option for a carbon or sputter coating attachment without breaking vacuum is available.
Features
- Programmable multi-segment sequence control with 10 times and 10 temperatures.
- Built-in penning head and gauge.
- Liquid Nitrogen fed cold stage.
- Vacuum gate valve to chamber.
- Vacuum specimen transfer chamber.
- Accurate time and temperature monitoring.
- Modular electronics.
- Clean line design.
- Polycarbonate safety shield.
Specifications
| Instrument Case | 450mm (W) x 350mm (D) x 175mm (H) |
| Work Chamber Plus Stainless Steel Base |
Borosilicate Glass 165mm (Dia.) x 125mm (H) 110mm (Dia.) x 115mm (H) |
| Weight | 42Kg |
| Specimen Stage | -140°C to +40°C |
| Temperature Monitor | -140°C to +40°C |
| Sequence Controller | 10 times and 10 temperatures |
| Timer | 0 to 999 Hours |
| Vacuum Gauge Range | 1 x 10-2 mbar to 1 x 10-7 mbar |
| Operating Vacuum | 1 x 10-2 mbar to 1 x 10-5 mbar |
| Cooling | By liquid nitrogen conductive cooling from 1 liter dewar fitted to the chamber of the unit. |
| Turbomolecular Pump | 60 litres/Second(Ultimate vacuum 1 x 10-6 mbar) |
| Chamber Dewar | 1 Litre Capacity |
| Supply | 115 volts 60Hz (12 Amp Max incl pump) 230 volts 50Hz (6 Amp Max incl pump) |
| Vacuum Pump | Complete with vacuum hose and oil mist filter. 85L/Min |
| Size | 470mm (L) x 150mm (W) x 250mm (H) |
| Weight | 20Kg |
Ordering Information
| 93123 | EMS 775 Turbo Freeze Dryer complete | POR | Quote |
| 91005 | Rotary Vacuum Pump | 2,700.00 | Add to Cart |
| 95126 | Supply Dewar (25L) | POR | Quote |
Replacement Parts
| 91013 | Glass Cylinder 165mm (6") | 175.00 | Add to Cart | |
| 91014 | "L" Gaskets to suit 165mm (6") | 1 pair | 95.00 | Add to Cart |
| 90032 | Copper Discs | 10/pack | 250.00 | Add to Cart |
Optional Accessories
| 95128 | EMS 170 Slushing Chamber | POR | Quote |
| 95127 | EMS 175 Auto Top Up Unit +Controller | POR | Quote |
| 91040 | EMS 7640 Carbon Coating Attachment | POR | Quote |
For more information on Freeze Drying, please see Freeze Drying Principles.
