| The turbomolecular pump can be used in several | | | | you have to make sure that you are buying one |
| different applications and it is well known for its | | | | that will be best suited for its intended application. |
| effectiveness and versatility. It has been one of | | | | This can usually be determined after just a little |
| the most sought after tools for creating an | | | | online research, but if you are not having any luck |
| artificial vacuum since it was first developed in the | | | | contact the manufacturer of your system and |
| 1960s. Today's designs are a direct result of the | | | | ask them what is recommended. The difficult part |
| work of researchers form the Massachusetts | | | | about choosing a turbomolecular pump is the fact |
| Institute of Technology. | | | | that the manufacturers of these machines are |
| Although it may seem complicated at first, the | | | | not given any specific regulations concerning |
| theory of operation behind the turbomolecular | | | | assigning a specific performance for their pumps, |
| pump is not that difficult to understand. Most of | | | | such as the speed and compression ratio. |
| these pumps operate by using a series of stages | | | | If you are looking for general recommendations, |
| by using rotators that are mounted in pairs. Gases | | | | the Edward EXT 70 is one of the more trusted |
| are captured in the upper stages and are forced | | | | models on the market and can be used in a wide |
| down into the lower ones until they are | | | | range of applications. It offers the following |
| compressed enough to create a vacuum. These | | | | features:o Water cooling standard with forced air |
| machines are highly reliable and have seen a lot of | | | | cooling as an optiono Lifetime lubricated bearingso |
| improvement since they were first introduced. | | | | Oil free operationo Little to no vibrationo Set your |
| They are able to pump out heavy amounts of | | | | own user defined parameters |
| gas at a constant rate. | | | | If you are having a difficult time finding one of |
| Today you have many different types of | | | | these turbomolecular pumps at a price you can |
| turbomolecular pump offered by several different | | | | afford, it may be in your best interest to |
| companies. While this gives you more of a choice, | | | | purchase a used or rebuilt model. When doing so |
| it also can make purchasing the best one for you | | | | however, it is a good idea to find a place that is |
| difficult. A few of the more trustworthy sellers of | | | | close to you so if you have problems with the |
| these machines include Leybold, Lesker, and | | | | merchandise returning it will be easy. It is also |
| Edwards. However, you will find after just a little | | | | safer to buy from the original manufacturer as |
| bit of research that there are many others. | | | | they can provide you with certified rebuilt and |
| When you are purchasing a turbomolecular pump, | | | | pre-owned products. |