Dry filter and grinding sludge has substantial advantages: More metalworking fluid (MWF) remains in the machine, the MWF consumption falls and disposal costs are reduced. Flender purchased five vacuum belt filter units from MKR, to reduce these costs, to provide greater safety in production and also to do more for the environment.
“The machines own filter systems are often insufficient to fulfil our high environmental protection standards”, Herbert Tenhofen, company environmental and disposal officer at Flender GmbH, clearly states the premises of his firm. The company in Bocholt not only wants to be the technology leader for all drive solutions, but also wants to set standards for active environmental protection – and at the same time, save money. The objective is to discharge as little metalworking fluid (MWF) as possible with the filter and grinding sludge produced, and thus to minimise disposal costs. In addition, the persons responsible for production wanted to do without the use of filter nonwoven, on the one hand due to the higher costs when there is nonwoven in the sludge, and on the other hand due to safety. “Sludge with nonwoven tends to self-ignite”, is how Albert Eringfeld, who is responsible for plant engineering and building maintenance at Flender, explained the background reasons, “because the sludge heats from the inside - and nonwoven is ultimately a readily combustible material.”
VC 200 - Anwenderbericht Fa. Flender.pdf