PT. Mora Anugerah Berkat (M.A.B) adalah perusahaan yang bergerak dalam bidang laboratorium khususnya material testing untuk konstruksi / pertambangan (civil laboratorium testing equipment), peralatan yang kami supply meliputi : alat lab uji tanah (soil test equipment), alat lab uji aggregates (aggregates test equipment), alat lab uji beton (concrete test equipment), alat lab uji sement (cement test equipment), alat lab uji aspal (asphalt test equipment), alat NDT (Non Destructive Test Equipment) dan Alat Survey.
Sieve Shaker Selection
Matching a sieve shaker to material characteristics saves time and effort, and ensures superior accuracy and repeatability
# 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 No.4 (4.75mm) and No.100 (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 No.4 (4.75mm) and No.200 (75μm).
# Tapping is a performance enhancing feature included on premium sieve shakers with vibratory, circular, orbital, or other primary actions. Repetitive tapping of the sieve stack by mechanical means reorients particles, aids passage, and prevents blinding. Tapping sieve shakers improve the passage of fines for nearly any material.
# 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. Adjustments for vibration amplitude and frequency on some shakers allow optimization for a wider range of materials. Vibratory Shakers perform well on most materials between No.10 (2mm) to No.635 (20μm).
# Pause is a function on better quality Vibratory Shakers with an effect similar to Tapping. Programming a pause into the test cycle causes particles to briefly stop, and then reorient themselves when agitation resumes.
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