The functional units for generating high and ultra-high vacuums are completely mounted in a housing and ready for operation.
The individual components are perfectly matched to one another.
The turbomolecular pump is equipped with dry-running, solid-lubricated hybrid rolling bearings (ceramic balls) which prevent the vacuum being contaminated by greases, oils or their decomposition products. This means that the design excludes residual hydrocarbon gas spectra.
CDK turbomolecular pump systems comprise:
- an SST turbomolecular pump with an integrated low vacuum stage
- a two-stage diaphragm pump with ultimate pressure < 1 mbar
- a mini-booster (small, vacuum-tight, encapsulated, dry-running rotary vane pump) in combination with the diaphragm or piston pump for generating the fore-vacuum < 1 mbar
- a solenoid valve in the fore-vacuum piping to the turbomolecular pump
- a power supply unit for supplying all the module
- a fan for the cooling required in the device casing
Automatic switch off:
All CDK turbomolecular pump systems have an automatic switch off device for the fore-vacuum system. The fore-vacuum combination is switched off as soon as the ultimate pressure has been reached in the receptacle. The solenoid valve in the fore-vacuum piping to the turbomolecular pump is closed simultaneously. This prevents reverse venting of the turbomolecular pump and receptacle.
The SST turbomolecular pump:
- Monobloc rotors with extremely low residual vibrations
- Special blade design for high pumping speeds and high compression ratios, particularly for light gases
- The gap-free rotor structure gives fast degassing on the high vacuum side
CDK turbomolecular pump systems are compact and dry running. The automatic shut-off system stops the backing pump when the required final vacuum is reached. The major advantages of the automatic switch off are:
- very long life span
- very low noise level- below 47 dB (A)
- hydro-carbon free with dry backing pump
- high combined pumping speed
- compact low weight
- turbo can mounted seperately from the main unit
- optional integrated vacuum measurement
