| Stainless steel balls, ball-cones, satellites steel media
used for burnishing |
Quality: The lustre attained during the
burnishing process depends largely on the quality of the stainless steel
balls. The balls used are spherical and are polished, lapped and
passivated. Process specifications, most of the times, require
completely non magnetic balls.
Steel:
Generally AISI 304 stainless steel balls are used. For higher
burnishing requirements, AISI 316 steel balls are
preferred.
Size and Shape: Depending
upon the size of the coin blanks, ball diameters ranging from 2 mm to 6 mm
(5/64" to 15/64 inch size) are suitable. A mixture
of sizes is also used. Generally, 3x5 mm size ballcones
or satellites are mixed with the spherical balls to polish the edges and
engravings, if any. For trial runs, eclipse balls are used for cost
savings.
Manufacturer:
Techbuff stainless steel media manufactured by Technocon Engineers, India is the
preferred choice of many coin blanks manufacturers and mints worldwide
because of its excellent quality and very competitive
prices. |
Technocon Engineers, India >>
