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MOLDED GRATING
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Product Description

Concentrated line load tables-deflection in millmeters

SPAN IN
(mm)
STYLE LOAD IN KN/SQM(UNIFORMED) MAXIMUN
RECOMMENDED
APPARENT
Ei x 10^6
N-mm^2/m
3 5 8 10 13 15 20 25 39 50 60 70 80 90
400 25x25x100RM 1.2 2.0 3.2 4.1 5.3 6.1 8.1 10.1 1.8           9 3.290
25x38SM 1.6 2.6 4.2 5.3 6.8 7.9 10.5 13.1             9 2.538
38x38SM 0.6 0.9 1.5 1.9 2.4 2.8 3.7 4.7 7.3 9.3 11.2 13.1 14.9   19 7.144
50x50SM 0.3 0.6 0.9 1.1 1.5 1.7 2.3 2.8 4.4 5.7 6.8 7.9 9.1 10.2 30 11.750
600 25x25x100RM 3.7 6.1 9.8 12.3 16.0                   6 3.666
25x38SM 4.8 8.0 12.8 16.0                     6 2.820
38x38SM 1.6 2.6 4.2 5.3 6.8 7.9 10.5 13.2             13 8.554
50x50SM 0.9 1.5 2.4 3.0 3.9 4.5 6.1 7.6 11.8 15.1         21 14.852
800 25x25x100RM 8.5 14.2                         4 3.760
25x38SM 11.3                           3 2.820
38x38SM 3.5 5.9 9.5 11.8 15.4                   10 9.024
50x50SM 1.9 3.2 5.2 6.4 8.4 9.7 12.9               12 16.544
1000 38x38SM 6.9 11.4                         7 9.118
50x50SM 3.7 6.1 9.8 12.2 15.9                   10 17.014
1200 38x38SM 11.8                           5 9.118
50x50SM 6.2 10.4                         8 17.296
1400 50x50SM 9.8                           5 17.578

Concentrated line load tables-deflection in millmeters

SPAN IN
(mm)
STYLE LOAD IN KN/SQM(UNIFORMED) MAXIMUN
RECOMMENDED
APPARENT
Ei x 10^6
N-mm^2/m
3 5 8 10 13 15 20 25 39 50 60 70 80 90
400 25x25x100RM 0.3 0.5 0.8 1.0 1.3 1.5 2.0 2.5 4.0 5.1 6.1 7.1 8.1 9.1 48 3.290
25x38SM 0.1 0.7 1.1 1.3 1.7 2.0 2.6 3.3 5.1 6.6 7.9 9.2 10.5 11.8 48 2.538
38x38SM 0.1 0.2 0.4 0.5 0.6 0.7 0.9 1.2 1.8 2.3 2.8 3.3 3.7 4.2 100 7.144
50x50SM 0.1 0.1 0.2 0.3 0.4 0.4 0.6 0.7 1.1 1.4 1.7 2.0 2.3 2.6 154 11.750
600 25x25x100RM 1.4 2.3 3.7 4.6 6.0 6.9 9.2 11.5             20 3.666
25x38SM 1.8 3.0 4.8 6.0 7.8 9.0 12.0 15.0             20 2.820
38x38SM 0.6 1.0 1.6 2.0 2.6 3.0 3.9 4.9 7.7 9.9 11.8 13.8 15.8   45 8.554
50x50SM 0.3 0.6 0.9 1.1 1.5 1.7 2.3 2.8 4.4 5.7 6.8 8.0 9.1 10.2 73 14.852
800 25x25x100RM 4.3 7.1 11.3 14.2                     10 3.760
25x38SM 5.7 9.5 15.1                       9 2.820
38x38SM 1.8 3.0 4.7 5.9 7.7 8.9 11.8 14.8             26 9.024
50x50SM 0.1 0.2 0.3 0.3 0.4 0.5 0.7 0.8 1.3 1.6 2.0 2.3 2.6 2.9 35 16.544
1000 25x25x100RM 10.4                           6 3.760
25x38SM 13.9                           5 2.820
38x38SM 4.3 7.1 11.4 14.3                     14 9.118
50x50SM 2.3 3.8 6.1 7.7 9.9 11.5 15.3               21 17.014
1200 38x38SM 8.9 14.8                         9 9.118
50x50SM 4.7 7.8 12.5 15.6                     14 17.296
1400 50x50SM 8.5 14.2                         8 17.578


NOTES

1.The designer should not exceed MAXIMUM RECOMMENDED load at any time. MAXIMUM LOAD represents a 5:1 factor of safety on ULTIMATE CAPACITY.
2.ULTIMATE CAPACITY represents a complete and total failure of the grating.
3.Walking loads, typically 2.4 KN/M²´╝îis recommended for pedestrian traffic. Deflections for worker comfort are typically limited to 9mm or SPAN divided by 120 under full live load. For a fermer feel under full live load or a 3.6 KN/m² load, limit deflection to 6 MM or SPAN divided by 200.
4.The allowable loads are for STATIC LOAD CONDITIONS at ambient temperatures.Allowable loads for impact or dynamic loads should be a maximum of ONE-HALF the value shown. Long term loads will result in added deflect-tion due to creep in the material and well also require higher safety factors to ensure acceptable performance.
5.For applications at elevated temperatures, consult Nan Tong Power at +86-513-85656118 or ntpower@public.nt.js.cn.
6.Load tables are for reference only. PowerGrate is not responsible for the use of these tables and can not warrant the performance of grating through the use of these tables. Please call for assistance in the use of these tables. Load tables for grating types are not in the list,Please call our technical department at 513-85656118 or email at ntpower@public.nt.js.cn.

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