Gravity Concentrators
Holman-Wilfley Ltd is a world recognised supplier of Holman and Wilfley gravity tables to the Fine Minerals and Metals/Plastics Recycling Industries. A dedicated team of engineers experienced in mineral processing understand the requirements of modern, environmentally driven process operations – and when gravity concentration is still a preferred separation route – Tables remain an economic and user friendly option to achieve the required concentration performance.
Mission
To provide our global client base with the best gravity separating table equipment available in the market.
Vision
To expand our high international profile in the Minerals Processing industry through supply of a continually developing product range of gravity separation tables, designed for long life and reliability.
Gravity Concentrators
Gravity Concentrators became embedded in the mineral processors mind, with the early gravity table inventions by Arthur Redman Wilfley in 1896. Mineral ore processing was revolutionised globally by this invention, which was initially installed in A R Wilfley’s own mine in Kokomo, Colorado. Although at the time there were a multitude of gravity concentration devices under patent, it was the Wilfley Table, which saw major success and application, and entered the English language as a generic term. By the 1930’s there were more than 25,000 units in global mining service!
(ref: Arthur Redman Wilfley, by Jay E. Niebur ISBN 0-942576)
This was the beginning of a principle, incorporating “riffle” lines to trap the high specific gravity minerals, coupled to a longitudinal oscillation, and using a smooth horizontal deck surface to allow free flow of mineral particles in a fluid slurry stream.
This basic design has been replicated by many suppliers, however original Wilfley and Holman remain as highly efficient and globally recognised gravity concentrators, each with specific process application areas. Today, in an increasingly environmental sensitive society, gravity concentration is still a very valuable route for mineral/metal recovery, and gravity tables continue to be included in modern flowsheets as a final concentration device.
