|
•
<br /> HELICAL DRIVER TORQUE CHART
<br /> Upgraded 7K Driver
<br /> Dealer : g �, RAMJACK
<br /> Ram Jack Oregon `^J
<br /> 850 Bethel Drive
<br /> Eugene, OR 97402
<br /> Torque Equation :
<br /> Hydraulic Motor : Pressure*displacemen
<br /> Model : White 300200B7301AAAAB T= ( )Gear Ratio*17 *17Displacement(in 3) : 12.5 2`�n motor gear
<br /> where : Pressure = hydraulic pressure(psi)
<br /> Gear Drive : displacement= hydraulic motor displacement(in 2)
<br /> Model : Auburn 6SB1316F14 q motor = motor efficiency
<br /> Ratio : 16.88 11 gear = gear drive efficiency
<br /> Torque Chart
<br /> Pressure (psi) 500 750 1,000 1,250 1,500 1,750 2,000 2,250 2,500 2,750 3,000 3,250
<br /> Torque (ft-lbs) 1,234 1,851 2,468 3,085 3,702 4,319 4,937 5,554 6,171 6,788 7,405 8,022
<br /> *NOTE : The torque can also be calculated at any hydraulic pressure by multiplying the pressure by the psi/torque factor for this
<br /> helical driver which is 2.468.
<br /> Ultimate Capacity'
<br /> 2 3/8"dia.shaft(K, = 10) 12,341 18,512 24,683 30,853 37,024 40,0004
<br /> 2 7/8" dia.shaft(K, =9) 11,107 16,661 22,214 27,768 33,321 38,875 44,429 49,982 55,536 _ 61,089 66,643
<br /> 3 1/2" dia.shaft(K, = 7) 8,639 12,958 17,278 21,597 25,917 30,236 34,556 38,875 43,194 47,514 51,833 56,153
<br /> *NOTE : 1) Ultimate Capacity(Q Z,) =Installation Torque (T)x Torque Correlation Factor(K,).
<br /> 2) Capacities shown in table assumes the pile is fully braced and has no eccentric loading.
<br /> 3)A safety factor of 2 should be applied to the ultimate capacity to obtain the working load capacity.
<br /> 4) Torque rating for 2 3/8"pile is 4,000 ft-lbs (1,621 psi).
<br /> 0
<br /> 0
<br />
|