1
ACTUATORS
ACT-24
For further information www.norgren.com
1
3
4
2
Cylinder Mounting Rod End Connection Mounting Style Stroke Factor
Side Tapped, Head or Cap Flange, Tie Rod,
Center or Side Lug
Fixed and Rigidly Guided .50
Side Tapped, Head or Cap Flange, Tie Rod,
Center or Side Lug
Pivoted and Rigidly Guided .70
Side Tapped, Head or Cap Flange, Tie Rod,
Center or Side Lug
Supported but not Rigidly Guided 2.00
Side Tapped, Head or Cap Flange, Tie Rod,
Center or Side Lug
None 5.00
Head Trunnion Pivoted and Rigidly Guided 1.00
Center Trunnion Pivoted and Rigidly Guided 1.50
Cap Trunnion or Clevis Pivoted and Rigidly Guided 2.00
Number of Tie Rod Supports Required
Tie Rod Supports:
For long strokes, tie rod supports are provided. These supports are of the
same envelope dimensions as the cylinder end caps.
NOTE: See chart for number of tie rod supports required.
Cylinder Mounting Diagram Chart
Tie Rod Tightening:
In order to reduce the possibility of cylinder binding or damage, tighten to
quarter unit increments of the final torque value in the following order: #1,
#2, #3, #4.
Then torque fully to the recommended foot pounds in the same order.
Recommended Torques for Tightening Tie Rods
Cylinder Standard Stainless Steel
Bore Steel Tie Rods Tie Rods
1-1/2" 6.6 ft. lbs. 3.75 ft. lbs.
2" 11 ft. lbs. 7.5 ft. lbs.
2-1/2" 13 ft. lbs. 7.5 ft. lbs.
3-1/4" 20 ft. lbs. 13-14 ft. lbs.
4" 24 ft. lbs. 13-14 ft. lbs.
5" 40 ft. lbs. 33 ft. lbs.
6" 48 ft. lbs. 33 ft. lbs.
7" & 8" 100 ft. lbs. 65 ft. lbs.
10" 150 ft. lbs. 75 ft. lbs.
12" 175 ft. lbs. 87.5 ft. lbs.
Cylinder
Bore
Cylinder Stroke (in)
60 75 95 115 135
1-1/2" 1 1 2 2 3
2" – 1 1 2 2
3-1/4" – – – 1 1
4" – – – – 1
5" and over – – – – –
NFPA Aluminum & Steel Cylinders
