Moulded GRP-Gratings - Sandwich

These gratings are provided with GRP plate on the surface and the bottom side of the grating. For this purpose the concave surface of the grating is grinded away and the underside is grinded for lamination connection. After that the GRP pates will be laminated to the gratings. The plate is usually 3 mm thick, but it can be adjusted according to customer wishes and statical requirements. The sandwich gratings with closed surface and bottom are better than the gratings with only closed surface when it comes to load bearing.

The gratings can be produced with a gritted plate or with a chequer plate look. We recommend the gritted version, as this has better anti-slip properties than the chequer plate version.

The gratings with a closed gritted surface, type GRP-SAND, achieve serration class 13 and the gratings with the chequer plate look, type GRP-SANDTR, achieve class R10.

Characteristics

high corrosion and weather resistance
high chemical resistance
hygienic and resistant to bacteria
the gratings are loadbearing in the direction of the supporting rods and the crossbars
does not conduct electricity
low thermal diffusivity
Anti-slip up to R13
relatively low unladen weight
simple and quick on-site assemply
high levels of comfort for walking and standing

Grating dimensions and types

Model code	Height mm	Pitch mm	Mesh mm	Bar mm	Weight kg/m²	Panel dimension mm
SAND522-38-5	3+16+3=22	38,10 x 38,10	32,00 x 32,00	5 - 6,1	21,11	1226	x	2445
SAND525-38-5	3+19+3=25	38,10 x 38,10	31,85 x 31,85	5 - 6,25	22,84	998	x	3664
						1226	x	2445
						1226	x	3664
SAND525-40-5	3+19+3=25	40,00 x 40,00	33,75 x 33,75	5 - 6,25	22,39	1000	x	2000
						1000	x	4007
SAND525-50-5	3+19+3=25	50,80 x 50,80	44,55 x 44,50	5 - 6,25	21,25	1277	x	3817
SAND530-38-5	3+24+3=30	38,10 x 38,10	31,60 x 31,60	5 - 6,5	25,27	921	x	3055
						998	x	1990
						1226	x	2445
						1226	x	3665
						1531	x	3665
SAND530-40-5	3+24+3=30	40,00 x 40,00	33,50 x 33,50	5 - 6,5	24,59	1000	x	2000
						1000	x	3000
						1000	x	4007
						1247	x	4007
SAND538-38-5	3+32+3=38	38,10 x 38,10	31,20 x 31,20	5 - 6,9	29,62	922	x	3055
						998	x	1990
						998	x	4007
						1227	x	2446
						1227	x	3665
						1531	x	3970
SAND538-40-5	3+32+3=38	40,00 x 40,00	33,10 x 33,10	5 - 6,9	29,23	1000	x	2000
						1000	x	3000
SAND538-66-5	3+32+3=38	66,08 x 66,08	59,18 x 59,18	5 - 6,9	22,80	1196	x	3641
SAND540-83-5	3+34+3=40	83,30 x 83,30	76,30 x 76,30	5 - 7	21,30	1257	x	4007
SAND550-38-5	3+44+3=50	38,10 x 38,10	30,60 x 30,60	5 - 7,5	37,80	1532	x	3666
SAND550-50-5	3+44+3=50	50,80 x 50,80	43,30 x 44,30	5 - 7,5	31,07	1227	x	3666
SAND750-38-7	3+44+3=50	38,10 x 38,10	29,10 x 29,10	6,5 - 9	42,30	1229	x	3666
						1229	x	4007
						1533	x	3666
SAND950-38-9	3+44+3=50	38,10 x 38,10	27,10 x 27,10	9 - 11	50,80	1231	x	3669
SAND960-38-9	3+54+3=60	38,10 x 38,10	27,10 x 27,10	9 - 11	55,80	1231	x	3669