R.C. TECHNOLOGY

Sieve Shaker

 

Circular Sieve Shakers use a very simple motion on a flat, oscillating plane. Particles are evenly distributed around most of the sieve surfaces, and randomly fall through openings. These units are adequate for coarser free-flowing materials between (4.75mm) and (150µm).

Orbital Sieve Shakers mimic the motion of hand sieving, and are an economical choice for free-flowing materials. The particles are essentially rolled around on the mesh surface until they fall through an opening. A bumping action is sometimes introduced as the sieve stack oscillates. Orbital shakers work well for most materials between (4.75mm) and (75µm).

Tapping Sieve Shakers may have mechanical, vibratory, circular, or other primary actions, but are distinguished by using repetitive tapping of the sieve stack to reorient particles, aid passage, and prevent blinding. Tapping sieve shakers are ideal for most materials between (4.75mm) to as fine as (20µm).

Sonic Sieve Shakers use up to 3,600 sonic energy pulses per minute to oscillate an air column enclosed within the sieve stack. This continuous agitation excites the particles and continuously reorients particles to the mesh surface. Programmable horizontal and vertical tapping clears the sieves and allows accurate separations down to 5µm.

Vibratory Sieve Shakers use electromagnetic energy to agitate particles. An ideal setting creates a fluid bed of material on the mesh. This optimizes the number of openings tried by the sample material. A pause function in the test cycle is similar to tapping. Particles stop briefly, then are reoriented when vibration resumes. A vibratory shaker can be optimized for most materials between (2mm) to (20µm).