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Adjustable Force Tension Springs

Ameritool Adjustable Force Tension Springs are made from 316 stainless steel. Just like the adjustable force gas springs the pressure on these can be reduced down by the user with no tools required. The force on these springs pulls the piston rod inward, operating in the opposite direction of standard gas springs. Great for use on doors, lids, hatches and hoods that need to stay closed or would use assistance while closing. In its relaxed state, the spring is compressed, you must pull to extend.

These units can withstand a wide range of temperatures from -40º F to 300º F.

The Guard Tube accessory protects the piston rod from damage due to incidental impacts. This accessory adds 0.1 inches to the extended length of the gas springs, please review the “E” dimension. To order add “08” to the end of your ordering number.

1100 Series Adjustable Force Tension Gas Springs End Mounts Diagram
1100 diagram

1100 Series Adjustable Force Tension Gas Springs

SKU Rod Diameter (A) Body Diameter (B) Stroke (C) Compressed Length (D) Extended Length (E) Min Max Lifting Force – # (N)
SKU
Rod Diameter (A)
0.562 (14.3)
Body Diameter (B)
1.165 (29.6)
Stroke (C)
2.25 (57.15)
Compressed Length (D)
5.9 (149.86)
Extended Length (E)
8.15 (207.01)
Min Max Lifting Force – # (N)
25-350 (111-1557)
SKU
Rod Diameter (A)
0.562 (14.3)
Body Diameter (B)
1.165 (29.6)
Stroke (C)
4.25 (107.95)
Compressed Length (D)
7.9 (200.66)
Extended Length (E)
12.15 (308.61)
Min Max Lifting Force – # (N)
25-350 (111-1557)
SKU
Rod Diameter (A)
0.562 (14.3)
Body Diameter (B)
1.165 (29.6)
Stroke (C)
6.25 (158.75)
Compressed Length (D)
9.9 (251.46)
Extended Length (E)
16.15 (410.21)
Min Max Lifting Force – # (N)
25-350 (111-1557)
SKU
Rod Diameter (A)
0.562 (14.3)
Body Diameter (B)
1.165 (29.6)
Stroke (C)
8.25 (290.55)
Compressed Length (D)
11.9 (302.26)
Extended Length (E)
20.15 (511.81)
Min Max Lifting Force – # (N)
25-350 (111-1557)
SKU
Rod Diameter (A)
0.562 (14.3)
Body Diameter (B)
1.165 (29.6)
Stroke (C)
10.25 (260.35)
Compressed Length (D)
13.9 (353.06)
Extended Length (E)
24.15 (613.41)
Min Max Lifting Force – # (N)
25-350 (111-1557)
SKU
Rod Diameter (A)
0.562 (14.3)
Body Diameter (B)
1.165 (29.6)
Stroke (C)
12.25 (311.15)
Compressed Length (D)
15.9 (403.86)
Extended Length (E)
28.15 (75.01)
Min Max Lifting Force – # (N)
25-350 (111-1557)
SKU
Rod Diameter (A)
0.562 (14.3)
Body Diameter (B)
1.165 (29.6)
Stroke (C)
14.25 (361.95)
Compressed Length (D)
17.9 (454.66)
Extended Length (E)
32.15 (816.61
Min Max Lifting Force – # (N)
25-350 (111-1557)
SKU
Rod Diameter (A)
0.562 (14.3)
Body Diameter (B)
1.165 (29.6)
Stroke (C)
16.25 (412.75)
Compressed Length (D)
19.9 (505.46)
Extended Length (E)
36.15 (918.21)
Min Max Lifting Force – # (N)
25-350 (111-1557)
SKU
Rod Diameter (A)
0.562 (14.3)
Body Diameter (B)
1.165 (29.6)
Stroke (C)
20.25 (514.35)
Compressed Length (D)
23.9 (607.06)
Extended Length (E)
44.15 (1121.41)
Min Max Lifting Force – # (N)
25-350 (111-1557)
SKU
Rod Diameter (A)
0.562 (14.3)
Body Diameter (B)
1.165 (29.6)
Stroke (C)
24.25 (615.95)
Compressed Length (D)
27.9 (708.66)
Extended Length (E)
52.15 (1324.61)
Min Max Lifting Force – # (N)
25-350 (111-1557)

Notes:

  • Force (F1) increments of 10 pounds for 1100 series.
  • Product length tolerance is ±. 08 in. (2.0 mm).
  • Locking device shortens extended length by 1 inch.
  • Force tolerance is 10-20 pounds over the nominal force.
  • Do not stroke more than 5 times a minute. Fast operation rates lead to excessive heat buildup resulting in internal seal damage.
  • Tension springs are filled with oil and are under pressure.  Please dispose of it properly.
  • Do not heat, open, or puncture.
  • Do not submerge.
  • Contact Ameritool for modified standards or for engineered specials that meet your exact needs.
  • EE denotes no end fittings on spring.

Rather See Fixed Force?

Fixed Force  Tension Springs are designed for smaller, lighter applications. With forces ranging from 35# to 85#

Don’t see what you need?

We can make custom designed springs, contact us for design assistance.