EXACTCASTTM OPTIMA VARIO

MULTIPLE FUNCTIONS THANKS TO
EXACTCASTTM OPTIMA VARIO
MULTIFUNCTIONAL RISER COVER LID
When using risers, there is a high risk of exothermic
particles falling into the mold. This leads to surface
defects and the need to rework. The modular
EXACTCASTTM OPTIMA riser system was developed
to counteract this, as it allows components such as
the volume, metal neck or even the cover lid itself to becustomized. However, various foundries are facing furtherchallenges, such as metallurgical treatment of the metal inthe riser, or the need for more efficient riser systems.
To address this, the experts at ASK Chemicals havefurther developed the modular OPTIMA system. The
patented, multifunctional EXACTCASTTM OPTIMA Varioriser follows the OPTIMA principle in all its features andexpands it with additional technological benefits. What‘s
more, it can be used in vertical molding lines.

TECHNOLOGICAL ADVANTAGES▪

Highly flexible cover lid▪

Freely configurable and designable▪

Allows extensions like Williams wedge,
inoculants, etc.

▪

Allows vertical application▪

Variable riser volume▪

No casting defects due to riser particles in themold▪

Available fluorine-freeEXACTCASTTM OPTIMA VARIO

Figure 1: EXACTCASTTM OPTIMA Vario
with multifunctional cover lid incl.
insertable Williams wedge and lid guide

EXCACTCASTTM OPTIMA modular system
EXACTCASTTM OPTIMA is a modular system withnumerous innovative components that can be flexibly
combined to create individual solutions.
EXACTCASTTM OPTIMA enables the use of risers in thesmallest possible space with maximum yield. Thanks totheir small contact surface, OPTIMA mini riser solutions canbe easily arranged, even with complicated castinggeometries. The risers achieve a precisely defined breaking
edge, thus reducing fettling as well as production costs.
Another advantage of the EXACTCASTTM OPTIMA is theavoidance of casting defects and impurities. Foundries canreduce rework and save costs while increasing efficiency
and product quality.
For users who want to reduce landfill costs and avoid
fluorine-related casting defects, a fluorine-free OPTIMA
variant is recommended. Foundries can also obtain allcompounds and variants from ASK Chemicals as emissionfree water glass-bound variants.
Multifunctional cover lid of EXACTCASTTM OPTIMA
Vario
The development of the innovative, multifunctional
EXACTCASTTM OPTIMA Vario riser cover lid makes it
possible to extend the application of the EXACTCASTTM
OPTIMA riser to many areas.
The riser cover lid is equipped with various struts. It istherefore highly durable, can better withstand pressure inthe mold, and is able to accommodate other elements forbetter riser performance. The crumb-free plastic cover lid
prevents contamination in the mold, which can occur
during penetration. Casting errors are thus avoided andcycle times remain unaffected.
Another benefit is the ability to introduce exothermic or insulating Williams element, which increases the performanceof the riser.

In addition, it offers completely new options, such as theplacement of inoculants for metallurgical treatment of themetal in the riser in order to achieve best properties evenwith long solidification times, additional vents, rigid/spring
pin and/or metal neck guides, as well as many
conceivable measures for perfecting the riser system.
Thanks to its multifunctionality, another significant
advantage is its application in vertically parted moldinglines.
EXACTCASTTM OPTIMA Vario expands the applications ofthe EXACTCASTTM OPTIMA riser many times over while
retaining all its positive features.

YOUR SUSTAINABILITYPLUS
Profitability▪ Efficiency increase▪ Customizable riser performance▪ Multi-functions for added performance▪

New applications▪ Vertically parted molding lines▪ Metallurgical treatment

Environment & Social▪ Available in fluorine-free formulation