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SLEEVES EXO 23 ISO ESO EXO 25 / 25B EXO 27

SLEEVES ISO-EXO EXO 23 - EXO 23B - EXO 25 - EXO 25B
The mark named 23 states the usage of ceramic fibers.
The mark named 25 states instead the usage of ceramic fibers/bio-soluble minerals.
Both the fibers characterize the product giving it, as prerogative a good insulating power, together with a strong exothermic reaction due to the use of metallic aluminum. Prime quality raw materials, like those used for the insulating products, and the vacuum production process give the product an apparent density of about 0,5/0,7g/cm3, and a good mechanical resistance. Because of its exothermic characteristic, this kind of sleeves is appropriate for a material with short intervals of solidification: various steel alloys, sphreoidal grafhite cast iron, etc. the use of this kind of sleeve enables a marked reduction of the riser volumes, when compared to those in sand and insulating material. The maximum capacity of the volume settling is 40/50%.
The codification with letter B means the usage of a different charge material basic or neutral that permits to the product to be more suitable for all types of cast iron especially for the ones with manganese.


EXO 27 SLEEVES
These sleeves are charcterized by good insulating power, together with a strong exothermic reaction due to the use of metallic aluminum. As per all our range of product, we use top quality raw material as well as fibers of mineral and organic origin. In this way, following the productive process in a vacuum we can obtain an apparent density of about 0,7/0,9 g/cm3,
and a good mechanical resistance too.
Due to the physical-chemical characteristics of the product we suggest the usage in highenergy- rate forming for the casting of ferrous metal: steels, cast irons, etc.