MinSand is a perfectly spherical refractory bead produced by fusing and supercooling Bauxite in an electric arc furnace.
Excellent surface quality of casted items
high dimensional accuracy
Low refinishing on final product needed
Low surface area
Low thermal expansion rate
Perfectly spherical
Product information
MinSand standard grades
MinSand is available in the following grades:
P Grade
G Grade
AFS 30
AFS 30
AFS 40
AFS 40
AFS 44
AFS 50
AFS 50
AFS 55
AFS 55
AFS 65
AFS 65
AFS 75
AFS 75
AFS 80
AFS 80
AFS 90
AFS 90
AFS 110
Please get in touch with your local sales representative for further information.
Packaging
Regular packaging modes for our product are 1,000 kg big bags and 25 kg paper bags.
MinSand has several properties that make the product quite unique on the market:
Flow Characteristics
The spherical particle shape significantly improves the flowability of the sand/binder mixture allowing cores of complex shapes to be blown when compared to alternative angular sands.
Thermal Expansion
MinSand has a very low thermal expansion rate, which enables castings to be produced with a high degree of dimensional accuracy compared to mould and cores produced from alternative sands. This is eminently suitable for automotive cylinder blocks and heads.
MinSand binder quantities/strength
The spherical nature results in a reduced surface area, enabling cores and moulds to be produced using lower resin additions. The mixed sand costs are reduced accordingly because of the lower resin demand.
Resin Systems
LKAB Minerals’product is compatible with resin systems, including pre-coated shell moulding sands. The sand grains have a very smooth surface that is easily resin coated.
