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Series 3

Mining Industry

SERIES 3 grating has been specifically developed for the mining industry where spillage of material onto floors is a problem. The large square openings (nominally 60 x 50) allow most materials to fall through the grating, thus keeping the walking surface clear and safe. This product is frequently specified for floors and conveyor walkways in crusher buildings, ball mills, process plants and transfer stations.

SA Series3

	STANDARD END BANDING WELD-EVERY 3RD LOAD BAR

Note:Spans to the left of the heavy line have a deflection of less than 5 mm for a 4 kPa uniformly distributed load, which is a limiting deflection for pedestrian comfort.

Nominal^o/A Dimension of Bars(in mm)

NO.of Bars	3	4	5	6	7	8	9	10	11	12	13	14
5mm Load Bars	125	185	245	305	365	425	485	545	605	665	725	785
NO.of Bars	15	16	17	18
5mm Load Bars	845	905	965	1025

Note:
1、For 3mm load bars subtract 2mm from widths
2、width dimensions can vary due to manufacturing process

Serrated conversion factors

Load Bar	20×3	20×5	25×3	25×4.5	25×5	32×3	32×4.5	32×5	35×4.5	35×5	35×5	38×5	40×3	40×5	50×5	65×5
Load	Not recommended		0.79	0.79	0.79	0.83	0.83	0.83	0.85	0.85	0.86	0.87	0.87	0.88	0.89	0.92
Deflection	Not recommended		1.12	1.12	1.12	1.09	1.09	1.09	1.08	1.08	1.07	1.07	1.07	1.07	1.06	1.04

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