Type Ditch Covering Grating

 Ditch cover

 2T Specification

(rame weight for the two sides of the box)

Flat Iron (h x t)	Span (mm)	Angle Iron	Width (mm)		Weight (kg/m)
			D	d	d	D	Total
19x4.5t	200	L25x25x3t	250	234	7.3	2.9	10.2
25x3.0t	200	L30x30x3t	260	244	6.8	3.5	10.3
25x4.5t	300	L30x30x3t	360	344	13.2	3.5	16.7
32x3.0t	300	L38x38x4t	376	358	11.8	5.3	17.1
32x4.5t	500	L38x38x4t	576	558	25.7	5.3	31.0
38x3.0t	500	L40x40x3t	580	564	21.2	4.3	25.5
38x4.5t	750	L40x40x3t	830	814	43.2	4.3	47.5
44x4.5t	750	L50x50x6t	850	828	50.4	9.8	60.2
44x4.5t	1000	L50x50x6t	1100	1078	64.7	9.8	74.5
50x4.5t	1000	L56x61x6t	1122	1100	74.8	11.1	85.9

The weight of the above box is 1000mm long and the weight of the angle iron on both sides

 3.5T Specification

	Flat Iron (h x t)	Span (mm)	Angle Iron	Width (mm)		Weight (kg/m)
				D	d	d	D	Total
	25x4.5t	200	L30x30x3t	260	244	9.8	3.5	13.3
	32x3.0t	200	L38x38x4t	276	258	9.0	5.3	14.3
	32x4.5t	300	L38x38x4t	376	358	17.1	5.3	22.4
	38x3.0t	300	L40x40x3t	380	364	14.2	4.3	18.5
	38x4.5t	400	L40x40x3t	480	464	25.5	4.3	29.8
	44x4.5t	500	L50x50x6t	600	578	35.9	9.8	45.7
Bay system	50x4.5t	750	L56x61x6t	872	850	58.4	11.1	69.5
Bay system	50x6.0t	1000	L56x61x6t	1122	1100	98.5	11.1	109.6

 8T Specification

	Flat Iron (h x t)	Span (mm)	Angle Iron	Width (mm)		Weight (kg/m)
				D	d	d	D	Total
	32x4.5t	200	L38x38x4t	276	258	12.9	5.3	18.2
	38x3.0t	200	L40x40x3t	280	264	10.7	4.3	15.0
	38x4.5t	300	L40x40x3t	380	364	20.5	4.3	24.8
	44x4.5t	400	L50x50x6t	500	478	30.1	9.8	39.9
Bay system	50x4.5t	500	L56x61x6t	622	600	42.2	11.1	53.3
Bay system	65x6.0t	750	L71x61x6t	872	850	100.1	12.7	112.8
Bay system	65x6.0t	1000	L71x61x6t	1122	1100	128.4	12.7	141.1

 15T Specification

	Flat Iron (h x t)	Span (mm)	Angle Iron	Width (mm)		Weight (kg/m)
				D	d	d	D	Total
	38x4.5t	200	L40x40x3t	280	264	15.4	4.3	19.7
	44x4.5t	300	L50x50x6t	400	378	24.3	9.8	34.1
Bay system	50x6.0t	500	L56x61x6t	622	600	55.0	11.1	66.1
Bay system	65x6.0t	750	L71x61x6t	872	850	100.1	12.7	112.8
Bay system	65x6.0t	1000	L71x61x6t	1122	1100	128.4	12.7	141.1

 20T Specification

	Flat Iron (h x t)	Span (mm)	Angle Iron	Width (mm)		Weight (kg/m)
				D	d	d	D	Total
	38x4.5t	200	L40x40x3t	280	264	15.4	4.3	19.7
Bay system	50x4.5t	300	L56x61x6t	422	400	29.2	11.1	40.3
Bay system	50x6.0t	400	L56x61x6t	522	500	46.5	11.1	57.6
Bay system	65x6.0t	500	L71x61x6t	622	600	72.3	12.7	85.0
Bay system	75x6.0t	1000	L81x61x6t	1122	1100	128.4	13.7	142.1

 35T Specification

Bay system: Angle iron non-standard products to be iron bending

	Flat Iron (h x t)	Span (mm)	Angle Iron	Width (mm)		Weight (kg/m)
				D	d	d	D	Total
	44x4.5t	200	L50x50x6t	300	278	18.5	9.8	28.3
彎製	50x6.0t	300	L56x61x6t	422	400	38.0	11.1	49.1
彎製	65x6.0t	400	L71x61x6t	522	500	61.1	12.7	73.8
彎製	65x6.0t	500	L71x61x6t	622	600	72.3	12.7	85.0
彎製	75x6.0t	750	L81x61x6t	872	850	114.9	13.7	128.6
彎製	90x6.0t	1000	L96x61x6t	1122	1100	175.5	15.4	190.9

  Manufacturing instructions to Hot Dip Galvanized Grating:

• (1) The hot-dip galvanized grating must be welded by a resistance welder,and can not melt the parent metal.
• (2) Material:SS-400 steel.
• (3) 3.0t Galvanizing Amount:over 500g/m2 ; 4.5t Galvanizing Amount:over 610g/m2.Copyright Chun Chi Grating Co . , Ltd.Taiwan Products, B2BChinaSources, B2BtaiwanSour