Products

Magnetite Sand produced at Kimony’s Richards Bay Plant

A single grade material is produced, which is particularly suitable for use as an additive to resin coated sand in shell moulding process in foundries due to the rounded particles of the material.

Kimony Magnetite Sand is mined from a beach sand deposit, ensuring that the final material is free of any dust. This is superior to magnetite taken from other sources which is usually milled, resulting in sharp, angular particles, which render the material unsuitable for even coating with resin.

See the difference in the following electron-microscope photographs reflecting the difference in particle shapes:





IMAGE 1 - Kimony Material showing rounded particles and absence of dust




IMAGE 2 - Standard Milled Material showing angular particles and presence of dust

Kimony magnetite sand is used as an additive of between 5% and 10% to resin
coated sand.

ADVANTAGES OF KIMONY MAGNETITE SAND

The advantages of using Kimony material are as follows:

- Rounded particles ensure an even coating of resin over the particles
- Reduced risk of pin-holes in castings
- Smoother surface of castings as indicated by the comparative images above
- Faster cooling time of castings due to the quicker absorption of magnetite






IMAGE 3 - Photograph showing a difference between two castings made of the same melt: Casting on the left made from mould with milled angular material and casting on the right made from mould with Kimony magnetite sand.



Sieve Table

Click on the link below to download the table:

latest news

Broad Based Black Economic Empowerment

  Kimony is an equal opportunity employer and is the holder...more

finer grade material: ,
Finer Grade Material:

The feasibility of producing an AFS110 grade material is currently...more

mining health and safety act:,kimony in the news,
Mining Health and Safety Act:

Kimony is compliant with the provisions of the Mining Health...more


gallery

view gallery


about kimony

Kimony was founded by geologist Anthony Eden Greville and his wife Rina Greville in South Africa in the 1970’s to supply the cement industry in Southern Africa with magnetite iron oxide. The current magnetite processing facility at Richards...more