HL Rung

This is the standard solid rung for the following steel cable trays, up to 24" wide: NEMA Class 12B and 12C ladder and ventilated/trough trays with flange-in side rails. NEMA Class 20A, 20B and 20C, mill galvanized, ladder and ventilated/trough trays.

RUNG TYPE MECHANICAL PROPERTIES
HL
 SOLID Thickness = 0.038"
Moment of Inertia: Ix = 0.0143 in4
Section Modulus: Sx = 0.0374 in3
RUNG
SPACING
 LOAD
TABLE		 SAFE LOAD LIMITS (LBS/FT)
TRAY WIDTH (IN.)
6 9 12 18 24 30 36 42 48
5"
1
 3351 2234 1676 1117 838 HH HH SU SU
2
 3351 2234 1480 667 260 HH HH SU SU
6"
1
 2793 1862 1396 931 698 HH HH SU SU
2
 2793 1862 1233 556 217 HH HH SU SU
9"
1
 1862 1241 931 621 465 HH HH SU SU
2
 1862 1241 822 370 144 HH HH SU SU
12"
1
 1396 931 698 465 349 HH HH SU SU
2
 1396 931 617 278 108 HH HH SU SU
1

Safe Load/Cable Load Only: Allowable uniformly-distributed cable load expressed in lbs/linear foot of tray length, based on the load carrying capability of the rung with a safety factor of 1.5. To convert Safe Load/Cable Load Only to reflect a safety factor of 2.0, multiply the safe loads shown by 0.75.

2

Safe Load / Cable Load +200 lbs: Allowable uniformly-distributed cable load expressed in lbs/linear foot of tray length, based on the load carrying capability of the rung with a 200 lb. concentrated static load applied at the center of the rung, without collapse.

3

Will not support a 200 lb. concentrated static load applied at the center of the rung.

[XX] Two digit code in the safe load limit tables indicates recommended rung option for specified width.

* Single rung load capacity: The data shown for 12" rung spacing is equivalent to the load capacity of the single rung.