Extra and Extra High are two new gravity bed filters for coolants, which uses non-woven filtration tissue for eliminating magnetic and non-magnetic particles from neat oils and emulsions. Filtration degree is set thanks to the tissue choice and varies from 10 to 50 microns, securing a very high depuration level. Extra is available in two versions, normal or High with double bed, and 11 models for throughput from 50 to 300 l/min for neat oils and from 100 to 600 l/min for emulsion.
- Contaminated coolant is piped into the trough and distributed on the filtration tissue, retaining pollutant particles and allowing the cleaned coolant to pass.
- The tissue collects pollutant particles until it is full and the coolant cannot cross it anymore. The coolant rises its level touching a float, which actions the proximity sensor controlling the tissue movement and the replacing with the new one.
- Dirty tissue is collected in a dedicated tank, while sludge are separated from a scraping blade, or it can be also rewound with a dedicated system (optional).
- The clean liquid pass in the tank below and is sent back to the machine tools thanks to the dedicated electrical pump.