Specifications

• Model: SPEX, 8000D Mixer/Mill.
• Motor 1/3 hp, 1725 RPM @ 60Hz, 1425 RPM @ 50Hz.
• Clamp Movement: 2 1/3 in (5.9cm) back-and-forth, 1 in (2.5cm) side-to-side.
• Clamp Speed: 875 cycles/minute (230V).
• Timer/Controls: programmable timer with digital display.

Principles

High-energy ball milling is a mechanical attrition technique frequently used for producing nanocrystalline metals and ceramics in powder form. In this technique, coarse-grained powders undergo disassociation due to the severe cyclic deformation induced by milling with stiff balls in a high-energy shaker mill. The current system comes with dual clamps. Each grinding vial contains a sample and one or more balls. It is then shaken in a complex motion that combines back-and-forth swings, reducing samples to analytical fineness, typically below 100 nm.

Capabilities

• Equipped with forced-air cooling and safety interlock system for operator protection.
• Dual clamps enable multiple sample processing.
• Capable of grinding up to 10 grams of dry, brittle samples.
• Capable of grinding powder particles down to nanometer scale.
• Grinds variety of materials in powder form such as metals, rocks, minerals, sand, cement, ceramics, and pharmaceuticals.

Applications

Mechanical alloying, nanomilling, slurry grinding, blending powders, mixing emulsions, and mechanochemistry.