With formers becoming more compact, oil tank capacity tends to be reduced.
In order to maintain the cleanliness of lubrication oil, a seal is installed on the slide, allowing it to be separated from coolant oil.
This device is not only a must in Sakamura hot formers, but it is also applied to cold formers.
Although it is difficult to obtain complete separation, by using material surface treatments such as Bonderite, the mixing of contaminated coolant oil on the lubrication oil side is greatly reduced.
In turn, this helps maintain the cleanliness of the lubrication oil.