S13 ATR Oct 2013 Report GC GE GF_Layout 1 20/09/2013 16:52 Page 62
CONSTRUCTION Flooring
Durable grating for an industrial surface Locally-manufactured floor grating helps to maintain quality control during the construction process
T
he nature of construction of Andrew Mentis’ Rectagrid RS40 floor grating enhances its corrosion resistance making it the ideal solution for any industrial application. Rectagrid RS40 floor grating is manufactured in an ISO accredited world class facility at Elandsfontein, Johannesburg using a pressure locking system pioneered by Andrew Mentis. “Quality control during the manufacturing process ensures that close tolerances are maintained, and that the round transversal bar fits tightly through the pierced bearer bar. This guarantees the superior structural integrity of the product to ensure its unquestionable locking characteristics,” said Elaine van Rooyen, marketing manager of Andrew Mentis. Rectagrid RS40 is formed through a process of compressive pressure locking of bearer bars and transversals to form an exact pitch of
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The nature of construction of Andrew Mentis’ Rectagrid RS40 floor grating enhances its corrosion resistance making it the ideal solution for any industrial application.
Rectagrid RS40 is formed through a process of compressive pressure locking of bearer bars and transversals to form an exact pitch of 40 mm by 40 mm.
40 mm by 40 mm. Van Rooyen pointed out that in order to be considered ‘good’ floor grating elements need to meet certain non-negotiable criteria. “The transversals must be positively and permanently locked to the bearer bars so that these cannot work loose. The pitching of the bearer bars and transverse bars must be accurate and constant with bearer bars being perfectly upright and without any sideways lean.
Discover us Discover the world of Leister at the GEOAFRICA 2013 - Accra Stand R10 / November 18 to 20. Rectagrid RS40 floor grating is manufactured in an ISO accredited world class facility at Elandsfontein, Johannesburg using a pressure locking system pioneered by Andrew Mentis.
Rectagrid is a highly engineered product that has been successfully tested in the field.
“There should be no cracks or crevices at intersections which could harbour corrosion and the locking method at the intersections should be designed to use the full depth of the bearer bar when calculating loads. Finally, the grating panels should be flat, square and untwisted.” CCIC, Morocco Chimibat, Algeria Revolon S.A., Tunisia Saad Hanna Sons, Egypt Irrico International Limited, Kenya Plasti-Weld, South Africa
Leister Technologies AG www.leister.com
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African Review of Business and Technology - October 2013
An open-minded system Van Rooyen says that because the intersection locking is so positive and strong, it is not necessary to band this grating. “For that reason, we went a stage further and arranged for the panels to leave the rolling mill finished on half pitch all round. This means we can now lay panels adjacent to each other to maintain a perfectly patterned floor with no banding. This is known as the ‘open-ended system’. However, if customers require banded grating, we have the facilities to accommodate this. Rectagrid RS80 is identical to RS40 grating except that we simply omit every second bearer bar, giving an 80 mm pitch bearer bar. However, it still has a 40 mm pitch transversal. Because RS80 has only half the number of bearer bars, the permissible load it can carry is only 50 per cent that of RS40.” ■ www.africanreview.com