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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.

Key Features:

High Force Output: Capable of producing very large forces, our Adjustable Force Tension Springs are designed to meet the most demanding requirements, ensuring optimal performance in a variety of applications.
Aircraft Quality Bleed Valve: Featuring a bleed valve crafted to aircraft-quality standards, these tension springs deliver consistent and reliable operation, even in the most demanding environments.
1-Year Limited Liability Warranty: We stand behind the quality of our products with a 1-year limited liability warranty, providing you with confidence and assurance of reliability.
Wide Temperature Range: Operating effectively in temperatures ranging from -40°F to 300°F (-40°C to 148°C), our tension springs are suitable for use in diverse environmental conditions. Additionally, we offer high temperature and low temperature seal packages for extreme temperature applications, ensuring reliable performance in any setting.

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

SKU	Rod Diameter (A)	Body Diameter (B)	Stroke (C)	Compressed Length (D)	Extended Length (E)	Min Max Lifting Force – # (N)
SKU 1100-2	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 1100-4	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 1100-6	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 1100-8	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 1100-10	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 1100-12	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 1100-14	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 1100-16	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 1100-20	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 1100-24	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#

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