AND MICRO GRINDING J-V
Colorox (Pty) Ltd of South Africa has
developed a new type of pressurized stirred bead
mill which can grind hard materials down to 0.1
microns and below, very fast and efficiently.
Colorox found Micro Grinding on the internet and
approached us with the idea of using our
mill as a pre-grind mill to feed the Colorox mill.
This is ideal as the
mill is most efficient in grinding down to the
10-20 micron range, about where the Colorox mill
needs to start. Over a several month period,
discussions were held and the Colorox mill
developer and president, Des Erasmus, visited the
US and the
plant where a joint marketing agreement was worked
out to offer the combined systems to the US and
world markets. We are very pleased to have Des
with us, and to be able to offer this unique
may have been hearing about recent new
developments in the field of Nanotechnology. This
is generally thought of as the area of particle
sizes of less than one micron and on down to the
molecular or even atomic level. One micron being
one millionth of a meter, and one nanometer being
0.001 micron. Another term is a millimicron, but
the entire field of sub-micron work is commonly
referred to today as the field of nanotechnology.
Colorox ultrafine grinding capability is now
permitting us to venture into this exciting field.
There are many applications where nanogrinding of
various materials is very desirable. These include
ultrafine metal powders for certain alloys, water
insoluble drugs and pharmaceuticals which can be
absorbed directly into the body, various pigments,
printing inks, and metallic oxide coatings, etc.
us if you have a special application in the field
of ultrafine grinding. We can't do it all, but in
the upper nano range we can do many fine grinding
jobs more efficiently and at lower cost.
STIRRED BED MILLING
mill has always been a stirred bed mill, due to
the orbital action of the mill chamber. Some
recent improvements, however, have enhanced the
stirring action of the mill considerably when
using balls or cylinders.
grinding materials of different density from that
of the grinding media, there is a tendancy for
heavier material to sink through the medial or
lighter material to ride over the top of the
heavier media during the grind. Either condition
is not good for the most efficient grinding
this new development, multiple blades stir the
material and media and keep the material more
evenly dispersed between the media so as to
provide the most effective and efficient grinding
LEADERS IN GRINDING EQUIPMENT
also has affiliation with two other leaders in the
field of grinding technology.
Ltd. of Auckland, New Zealand is a world
leader in the manufacture of high quality
laboratory fine grinding equipment, as well as
other lab equipment for the minerals and
processing industries. Rocklabs laboratory
crushing, pulverizing and other lab equipment is
known the world over. Visit their web site at http://www.rocklabs.co.nz
or email Ian Devereux at firstname.lastname@example.org
Tool & Machine, Inc. of Richfield Springs,
New York is the leader in the rapidly growing
field of glass recycling. The key to glass
recycling is a fast and efficient means of
crushing and cleaning the glass. The Andela line
of glass crushing, cleaning and pulverizing
equipment is unique and provides the most
efficient and inexpensive means of turning large
volumes of glass into sand and gravel with no
sharp edges. Andela has a web site at http://www.recycle.net/andela
or e-mail Cynthia Andela at email@example.com.
OPENS WORLDWIDE DOORS
growth and utility of the internet has grown
dramatically over the past few years. As more and
more people and companies get "on the
net" the usefulness grows accordingly. There
is not much now you cannot find on the net through
proper use of the "search engines", and
one of the greatest benefits is the convenience,
economy and informality of Email. A good part of
each day is spent answering Email inquiries and
corresponding with customers all over the world.
The old way of writing and typing letters and
sending them by fax or mail takes much longer and
cost much more.
are very pleased with the scope and quality of
leads generated from the internet, and are in the
process of updating our web page to include the
Colorox ultrafine grinding system. We may add
links to our page for our other affiliates such as
the ones described in the preceding article, who
also have web sites. The internet is a very
convenient way to do business and it is changing
the way business is done in the world.
have Email addresses at: firstname.lastname@example.org.
We check Email regularly, so feel free to send us
has always done some toll, or contract grinding.
This was as much to demonstrate the mills, and
gain operating hours on the mill equipment as it
was to earn a profit.
service will continue in the future in an even
more expanded mode, incorporating the Colorox
ultra fine grinding capabilities to allow contract
grinding capabilities down to as low as 0.1
recognize that many companies have new products
and projects which require special grinding in
order to prove or test market the product. We can
help in this regard by providing an intermediate
grinding service until the customer is ready to
set up a permanent grinding operation at their own
plant. Then, too, there are situations where firms
simply do not have the capability to grind down to
the sub-micron range desired for best product
performance or marketability. This is where the
combination of Micro Grind - Colorox system test
and/or contract grinding capability will be useful
or fax us regarding your toll grinding needs and
we will do our best to help solve your grinding
MILLING TO FINE POWDER
current new test grind project involves grinding
scrap Teflon material which has been put through a
special treatment to the point where it can be
ground into a fine powder. The powder retains all
of the desirable properties of Teflon, and the
fine powder finds many applications which are not
possible using the sheet or solid PTFE material.
methods of grinding presently used can produce
particle sizes of only about 10 microns but we
will be test grinding this material in the Colorox
mill to bring it down to sub-micron particle size.
TFE material of this particle size will find users
beyond those applications where a more coarse
powder can be used. An example is developing a
penetrating lubricant for large steel wound cable
which will penetrate to the core of the cable and
carry the teflon powder with it. This will
lubricate the interior wires in the cable bundle
and prevent heat friction and wear.
every now and then by the staff of
MicroGrinding Systems for the enlightenment,
amusement, and amazement of that rare group
of rugged individuals who are involved with
the special science of beating rocks and
other hard stuff into little bitty pieces.
Call or fax us at (501)-374-8402 for
questions regarding your special
applications, or news of interest to the
industry. MicroGrinding Systems, Inc., 1823
East 17th Street, Little Rock, AR 72202 USA