Since ancient times, humans have felt the need to sort materials or food by size. The origin of fragmentation or separation techniques coincides with the origin of human civilisation. Since prehistoric times, millstones have been used to crush grain.
When the first industries emerged, such as ceramic-making, the first grade sorting appeared to qualify the need for materials of different sizes: stone blocks, pebbles or powders.
In the pottery trades, soil solutions were left to decant to extract clay.
Food requirements also led to ways of separating large from smaller grains, by sieving materials through crafted baskets. These were the first separations by screening.
Methods have evolved through new equipment and the need to refine the sorting result through measuring tools; but still to this day, the most economically simple way to separate naturally involves a screen.
An entrepreneurial history
1962
Today
1924
1933
1951
1952
1959
1962
1991
1992
1997
1998
2012
2014
1924
Creation of the “Grillages Giron Colombes” company in Garenne-Colombes.
Manufacturing and installation of woven wire mesh fences.
1933
Specialisation in woven wire cloths for the mining industries
The first production in France of woven wire cloths made from high resistance steel wire
1951
Anti-clogging cloth patent (Ondap-Gomme)
1952
Anti-clogging cloth patent (Mixte-Gomme and Lonplan-Gomme)
1959
Awarded the “French Quality” label
1962
Complete decentralisation of the business to Chatellerault and name change to “Toile de criblage GIRON”
1991
Creation of the “GIRETHANE” subsidiary for the production of polyurethane screens in Meaux
1992
Patent of the modular T-key system
1997
Hybrid steel/polyurethane wire cloth patent
Decentralisation of the GIRETHANE subsidiary to Chatellerault and absorption of the subsidiary by GIRON