by williamsu | Sep 17, 2013 | Product News
Barnstead Stirring hotplate
Barnstead Cimarec is one of the many quality laboratory and scientific products that we have to offer at a very competitive pricing. This ceramic top stirrers have microprocessor feedback for precise control even with changes in viscosity. It delivers precise digital performance at an analog price. Besides, the microprocessor feedback control provides constant speed regardless of changes in viscosity and prevents runaway and magnetic decoupling. The direct-drive motor and magnet system permits quiet stirring meanwhile tight seal and safety trough ensure that accidental spills do not penetrate casing. This model also has power-on light, integrated ring-stand holder to accommodate 1.3 CM (0.5 IN) dia. support rod. With low-profile design and rugged base to prevent tipping and spillage, this model is definitely your perfect choice of stirring hotplate.
by williamsu | Sep 12, 2013 | Product News
Laboratory Freeze Dryers up to 2 kg
Freeze dryer ALPHA 1-2 LDplus
Total ice capacity 2,5 kg,
Ice condenser temperature –55°C.
Small but big in performance. For routine applications with new user friendly unit control LDplus (Lyo Display plus):
LDplus (Lyo Display plus) stands for a comfortable, easy-to-use and self-explaining user interface for controlling routine freeze drying processes, combining functionality and convenient operation:
- Graphic LC display with a clear layout showing the most important process data (ice condenser temperature, process time, section time and vacuum)
- Comfortable and self-explaining menu guidance in German, English or French language
- Vacuum control for optimization/reduction of process times (electromagnetic pressure control valve available as accessory)
- Conversion of product temperature and vacuum according to the vapour pressure curve above ice
- RS-232 communications interface (PC) available as an option, e.g. for process documentation software LyoLog LL-1
Suitable for drying in 8 round bottom flaks, wide neck filter bottles, ampoules and on 3 unheated shelves (alternatively sealing device with 2 unheated shelves Ø 200 mm).
- Figure: ALPHA 1-2 LDplus, process B, with 3 unheated shelves Ø 200 mm and connections for 8 flasks
by williamsu | Sep 12, 2013 | Product News
Laboratory Freeze Dryers
Flexible freeze drying systems for optimized processes:
Based on over 60 years of experience, Martin Christ presents a comprehensive product range covering routine applications as well as reliable equipment for individual and product specific drying processes. The newly introduced freeze dryers with LDplus- and LSCplus-controller set new standards for flexibility and process control. The modular accessory line allows for individual system configurations adaptable to almost every freeze-drying application. Two different drying techniques provide a solution to most lyophilisation challenges.
Your choice on two different freeze drying processes:
Process A
Single-Chamber-System, only for units with LSCplus-Controller:
Freezing and drying of low freezing and thermosensitive substances on cooled shelves (e.g. at -40°C) inside the ice condenser chamber .
Typical drying vessels:
- dishes
- injection vials (stoppering under vacuum or inert gas)
Process B
Double-Chamber-System
Separate pre-freezing (e.g. in a deep freezer) and drying of less sensitive material outside the ice condenser chamber.
Typical drying vessels:
- dishes
- injection vials (stoppering under vacuum or inert gas)
- round-bottom-flasks, wide neck filter bottles
- ampoules
Index:
1 vacuum pump
2 ice condenser chamber
3 condenser coil
4 acrylic cover
5 drying chamber
6 heatable shelf
7 vacuum-gauge
8 drain valve
9 engine driven intermediate valve
10 stoppering device
11 pressure control valve
12 aeration valve
13 rubber valve
14 thermal insulation
Special features of Martin Christ freeze dryers:
- Compact and powerful benchtop units with minimized space requirements.
- Modular concept for easy enlargement of the capacity with comprehensive range of accessories.
- Ice condenser chamber with inner condenser coil of high-quality steel allows for efficient vapour deposition.
- High-quality insulation of the ice condenser chamber reduces performance losses and avoids condensate formation.
- Ice condenser can be checked visually; easily accessible; rapid, easy defrosting and cleaning.
- Drying chamber is located directly above the ice condenser chamber with large cross-section provides high sublimation performance and reduced drying times.
- Pressure regulation for exact temperature control of the material analog to the vapour pressure curve for ice and water.
- Process-oriented control interfaces LDplus (Lyo Display) and LSC (Lyo Screen Control) for exact and reproducible measurement and control of all process relevant parameters, like vacuum, shelf temperature.
- Control interface LDplus (Lyo Display)
- Controlinterface LSCplus (Lyo Screen Control plus)
Ice condenser capacities for every individual application:
When selecting the suitable freeze dryer the following points have to be considered besides the decision on the accessories and drying vessels:
- The required ice condenser temperature (-55°C for aqueous material, -85°C for products containing solvents or low-eutectic material).
- The maximum ice condenser performance (capacity per 24 hours resp. total capacity until defrosting).
- In addition to that, the needed shelf areas to produce the wished amount of samples.
Make your choice out of the comprehensive range of basic units and individual accessories.
by williamsu | Sep 12, 2013 | Product News
Bullfrog Batch Reactors
Whatever reactions you want to run, our Bullfrog Batch Reactorsare flexible and robust enough to meet your needs.
The Bullfrog Batch R
eactors are available as single reactors or in high throughput, multiple reactor format and come with a large variety of options and accessories to meet your requirements.
Whether you want to evaluate a different reaction every time, or carry out standard tests every day, you’ll be able to select a configuration that suits you.
Features of the Bullfrog include:
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Individual temperature control, with feedback
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Operating pressures up to 200 bar
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Materials of construction options
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Glass, 316 Stainless Steel, Hastelloy C276, Titanium
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Overhead or magnetic stirring
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Computer control and data logging available
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Readily integrated into your customised systems
All our batch reactors are simple to use, have a compact footprint and represent excellent value for money. And, of course, our reactors are always fully safety tested and can be certified to meet all relevant legislation.
For more information please see our Single Bullfrog Batch Reactor, Multiple Bullfrog Batch Reactor and Platform for Standard Testing of Lubricating Oils documents in Related Links
by williamsu | Sep 12, 2013 | Product News
Polar Bear Plus Advanced Temperature Management
Superior heating plus cooling comes as standard – Whether you need a stirrer hot and cold plate, crystallisation equipment or a flow reactor, the Polar Bear Plus delivers.
The Polar Bear Plus family sets a new benchmark for precision cooling and heating by removing all the hassle and giving you more time to do what you do best. The industry-leading technology paired with an elegant, modern design makes the Polar Bear Plus a must have for any leading-edge environment.
Available in three low energy, space-saving models, the entry level Polar Bear Plus, the
Polar Bear Plus Crystal and the Polar Bear Plus Flow Synthesiser all offer system temperatures of -40 to +150C at the touch of a button. Using no heat transfer fluids, solvents or ice, this really is temperature management for the 21st century.
Features of the Polar Bear Plus include:
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Combined hot and cold plate stirrer
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Simple operation – attach to an electricity supply and set the temperature
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Accurate and precise temperature control from -40C to +150C
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Fully programmable temperature profiles with our Polar Bear Plus Crystal
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No solvents, heat transfer fluids or ice
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Self contained and easily portable – similar in size to a shoebox
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Powerful magnetic stirring up to 1500rpm*
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Adaptable to many applications
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*Not applicable to the Polar Bear Plus Flow Synthesiser
For a full description, please download our Polar Bear Plus brochure from the related links.
This revolutionary technology offers so much more than your current hot plate stirrer or cold plates, whilst offering remarkably simple operation.
