TABLE III (RC Data)
with data for RC series hydraulic cylinders
for data on RCH series hydraulic cylinders see Table III (RCH Data)
Torque and Load Values for A193 Grade B7 Material
Torque and Load Information for Other Materials
Nominal Anchor Size Tensioning Torque (Ft. Lb.)  Setting Load
(Pounds) (A)
.50 Fy - .525 Fy
(Setting)
Hydraulic
Gage Reading 
(PSI)
Tensioning Load
(Pounds)
.81 Fy - .85 Fy 
(Tension)
Hydraulic
Gage Reading
(PSI)
1/4" 9 - 12 1,680 - 1,764 257 - 270 * 2,722 - 2,858 416 - 437 *
3/8" 40 - 44 4,095 - 4,300 627 - 658 * 6,634 - 6,966 1,015 - 1,067 *
1/2" 80 - 90 7,455 - 7,828 1,142 - 1,199 * 12,077 - 12,681 1,850 - 1,942 *
5/8" 180 - 200 11,865 - 12,458 1,817 - 1,908 * 19,221 - 20,182 2,943 - 3,091 *
3/4" 340 - 360 17,535 - 18,412 2,685 - 2,820 * 28,406 - 29,826 4,350 - 4,568 *
1" 640 - 660 31,815 - 33,406; 2,400 - 2,521** 51,540 - 54,117 3,890 - 4,085 **
1 1/4" 1,460 - 1,490 52,485 - 55,109 3,960 - 4,160 ** 85,024 - 89,275 6,415 - 6,740 **

All torque values based upon Maxi-Bolts furnished with electrozinc plating to Federal Specification QQ-Z-325c Type II Class 3
(A) If desired, this range may extend from .50 Fy to .81 Fy.
  *   Determined by dividing load pounds by 6.53 square inches (Drillco supplied RC-302 Hydraulic System)
  ** Determined by dividing load pounds by 13.25 square inches (Drillco supplied RC-603 Hydraulic System)


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