The Wilfley table is used to separate heavy mineral particles from lighter waste particles using riffles and vibration. Powdered ore is fed onto the table along with water. Heavier particles settle between the wooden riffles while lighter particles are washed away. As the table vibrates, the bed of particles moves toward the concentrate end where riffles decrease in height, allowing lighter particles to be washed off while concentrating the heavier minerals. Proper maintenance of parts like the drive box and rocker arms is needed to keep the Wilfley table functioning effectively.

2. Contents
 Introduction :
 Concentration Method:
 Water Wash:
 Application:
 Maintenance:

3. A sand Table that separates heavy mineral particles from Lighter
gangue by means of longitudinal riffles impending the downward flow
and a horizontal reciprocating motion carrying the heavy particles off
the end of the table.it is used for grinding materials of 500 mesh size.

4.  Wilfley’s Table is made by fixing
narrow, thin and long wooden riffles
on an inclined surface.
 The Table is given a regular
vibrating motion.
 The powdered ore obtained from
lumps of the ore using ball mill is
fed on the top of Wilfley’s table and
running stream of water is also
released from the upper side.
 As a result, the lighter gangue
particles are carried away and heavy
ore particles in which proportion of
minerals is more, settle between the
wooden riffles fixed on the table
and get collected on the slits
between them.

5.  The feed edge of the table has a water spray bar.
 This water is adjusted to provide a gentle wash across the table.
 The action of the table creates inverse classification and stratification,
i.e. each mineral of a certain specific gravity is arranged according to
size.
 Due to the motion the bed moves to the concentrate end.
 As the height of the riffles decreases towards this end of the table
lighter gangue loses the support of the riffles and the wash water
carries it towards the lower side of the table into the tails and this then
concentrates the remaining heavy mineral.
 The heavy mineral then moves on to a smooth plane where any fine
gangue and larger particles easily rolled by water are washed from the
concentrate.

6.  Recovery of Gold and other precious metals from low tonnage streams.
 Recovery of cassiterite and tantalite/columbite from ores.
 Recovery of other heavy minerals and materials.
 Gravity cleaning / final concentration in fine particle gravity circuits.
 It will do wonders on -2mm scrap electronics.
 It will outperform all other shaker tables if there is any other dense
contamination.

7.  The head motion drive box should be kept topped up to
the required oil level.
 The rocker arm pockets should be kept free of foreign
material and topped up with oil.
 The table should be kept clean, i.e. no build up should be
allowed.
 All parts including the drive belts should be checked on a
regular basis for wear.

8. Source-https://www.911metallurgist.com