Kenfilt in the tap manufacturing industry
A major European cutting tool manufacturer orders its third FTD 20 AD TA unit from KENFILT. The Japanese firm OSG has operated 8 KENFILT units at its Yana plant since 1990, still running at full capacity.
Like the largest cutting tool manufacturers worldwide, a major European cutting tool manufacturer has also placed its full trust for many years in the technique, quality and performance of KENFILT precoat filtration equipment.
The collaboration began with the acquisition of the first 5 semi-automatic individual units FTD 6 AD DO and has continued with the acquisition of the fully automatic precoat filtration centrals FTD 20 AD TA supplied in 2016 and 2017.
KENFILT is building the third precoat filtration central FTD 20 AD TA for this manufacturer, to be installed in a new tap manufacturing plant. Each central was designed to filter a flow of 1,000 l/min of cutting oil with a viscosity of 18 cSt at 40°C, with a filtration quality of 3-5 µm using cellulose fibres as filter aid.
In tap manufacturing, steel particles in suspension must be prevented from clogging the pores of the profile grinding wheel. When this occurs, the wheel loses its cutting capacity, friction increases and overheating occurs, causing microcracks and loss of hardness in the cutting crests.
Another advantage of working with fully clean oil is that it allows the use of CBN wheels at high speeds of up to 120-160 m/s, requiring high-pressure pumps of up to 120 bar. These gear or screw pumps fail quickly if the oil is not completely clean of particles — a quality guaranteed by KENFILT precoat filters (ISO 4406 Code 16-13-10 or NAS 7).
It is for all these reasons that the Japanese firm OSG installed in 1990, at the world's largest tap manufacturing plant in the city of Yana, 8 KENFILT precoat filtration centrals type FTD 75 DA 67 with a total filtration flow of 36,000 l/min (600 l/second), which after 28 years continue to work at full capacity.