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Lehmann - Model USF µ -Negative Pressure Suction Filter
The negative pressure suction filter cleans liquids such as coolant or process water without the use of filter aids, by extraction. It can be used in all kinds of areas such as grinding, turning, drilling, milling, lapping as well in graphite machining.
New feature: The USF filter series works without filter aid medium.
Mode of function
The USF is immersed in a dirt tank with scraper system. This transports the contamination which builds up as a sediment and is separated from the filter candle.
The USF consists of a filter candle which is selected according to the application. Cleaning is carried out by means of the filter element. The contaminated fluid settles in the inflow box and flows evenly into the dirt tank. Purified fluid is extracted from the filter element with a suction pump. The fluid flows through the filter element and back into the machine. The impurities previously contained in the fluid settle on the outside of the filter candle and form a filter cake which refines the nominal filtration level. In the USF, cleaning is carried out by a permanent filter that can be backwashed by excess pressure. This method functions fully automatically. The dirt particles are released from the candle, transported away and dried. This means long service lives are guaranteed, and the service intervals minimised.
- Considerable cost savings
- Short payback time
- Environmental friendliness
- Energy efficiency
- Strict service friendliness
- Noticeable reduction in operating costs
- Long-lasting filter elements
- Long service lives