for SERIOUS MINERS who require heavy duty solutions.....
The Ross Box system is capable of
processing very high quantities of gravel economically, efficiently, and
with very high recoveries when properly operated.
Ross Box system has been used in some of the largest placer operations
in the world for over twenty-five years and has processed hundreds of
millions of yards for its owners. It has also been designed with long
term usage in mind.
The Ross Box system has been designed to be free of moving parts
(except for pumps and earth moving equipment) to assure an almost
totally maintenance free machine and a long equipment lifetime.
All shipping dimensions suitable for flatracks. (*Information subject to change without notice)
| ||Dump Box||Sluice Box||Overall||Water|
|R9 - 9||10|
|Dump Box||Large heavy-duty Dump Box contains a sufficient volume of auriferous
gravels to maintain constant feed to the distribution and recovery
areas between cycles of the loading equipment.|
|Distribution||The Primary Distribution area is built into the
dump box. It is constructed of heavy, punched plates with adjustable
pitch, normally flatter than the general slop of the box. The purpose is
to ensure proper classification and feed control to minimize "surging"
of unwashed gravel into the recovery areas. This promotes vigorous
washing and "liberation" of the gold particles which is essential to
maximize the high recovery capabilities of the Ross Box.|
The Secondary Distribution area is utilized to classify the gravels, dropping the auriferous fines into the carefully controlled side recovery channels.
|Recovery Areas||The Primary Recovery area is located immediately
under the primary Distribution area and traps the gold as it is released
from the gravel due to vigorous scrubbing action of the water.|
The Secondary Recovery
areas are located downstream from the Secondary Distribution area. The
fine gold is recovered in the side channels, and the gold nuggets are
captured in the center channel.
The Tertiary Recovery area is a find gold area, trapping gold released from the coarser material and clays travelling down the center channel.
|Water Manifolds||The Main Manifold is adjustable horizontally and
can be rotated to provide a vigorous scrubbing action and regulate the
flow of materials into the recovery areas. The two Swing Manifolds
ensure excellent dump box coverage and scrubbing of all fee material.|
The Throat Manifold in the secondary distribution area ensures effective washing and classiin this zone.
The optional Water Monitors
mount on the main manifold and offer 360 degree rotation. The balanced
design of these swiveling "water cannons" can greatly enhance washing
and control of larger rocks with minimal operator effort.
|Clean Up||During clean up, all of the concentrate is washed into strategically
located pockets, to longitudinal tubes transporting the concentrate to
the bottom end of the sluice box to maximize security and to simplify
|Construction||The cast alloy steel punch plates are 3/4" thick for long wear, and
contain tapered holes to minimize blinding. The reinforced square tube
sub-frame and skid ensures strength and facilitates ease of movement
with construction equipment.|