The Arcast 200 arc melter can melt alloys with melting temperatures from aluminum to tungsten. Sample weights that can be cast range from grams to hundreds of grams. The 800 amp power supply and high vacuum environment permits elemental blends of materials to be melted together for high quality, laboratory scale specimens. Magnetic stirring of the melt (for increased compositional homogenization) is available. Samples can be cast into button form or as rods (with both tilt-pour casting and suction casting). The diameter of rods vary from 3 to 12 mm.