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Gas Springs - Mounting Orientation Limited Type (FGS22360-345)

Gas Springs - Mounting Orientation Limited Type FGS22360-345

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  • Gas Springs - Mounting Orientation Limited Type
  • Gas Springs - Mounting Orientation Limited Type
  • Volume Discount

MISUMI

MISUMI

Gas spring that is a limited type in mounting direction. You can choose the stroke from 49 to 360 mm.

(i)Caution

  • Since the speed cannot be adjusted with gas springs, please select an air cylinder when speed adjustment is required. When confirming the actual reaction force of gas spring, please purchase at the minimum unit and select accordingly.
  • Please check the content on our website as the PDF does not contain the most up-to-date information.

PDFP.2-383-2014

Part Number

Configured Part Number is shown.

FGS22360-345

・Materials
[ M ] Material:
Cylinder: STKM11A (Carbon Steel Hollows for Machine Structural Use)
Rod : S20C
Bushing: Polyacetal Resin (White)
Gas : Nitrogen Gas (N2)
[ S ] Surface Treatment:
Cylinder: Baked Paint (Black Matt)
Rod : Hard Chrome Plating
 

Specifications

Part Number-Reaction Force
FGS15049-150
Part NumberMax. LengthMin. LengthStrokeGas Reaction Force (20°C)O.D.Rod Dia.HApplicable Mounting BracketWeight (g)
TypeNo.-Reaction Force (Fa)Lmax -10mm StrokeLmax - (S) in the Stroke
FaFb(S)
LmaxLminmaxNkgfNkgfAB
FGS15049-03018113249303.0404.139157110GSBR6A
GSBR6B
GSBR6C
GSBR6D
(Click here)		83
15049-055556.0717.2
15049-070707.1899.0
15049-085859.010911.1
15049-15015015.019119.5
15069-05022115269505.0676.85913096
15069-080808.010710.9
15069-10010010.213213.4
15069-12012012.015816.1
15089-07026117289707.0949.679150109
15089-085858.711511.7
15089-10010010.013513.8
15089-15015015.020220.6
15089-20020020.026827.3
15099-07528118299758.010110.389160116
15099-12012012.016216.5
15099-20020020.027027.6
18099-3002811849730030.539239.9188
18099-40040040.752253.2
18120-10036524512010010.012313.0110221183
18120-20020020.024525.0
18120-30030031.036737.0
18120-40040041.048950.0
18150-10042027015010010.012612.9140246205
18150-15015015.018819.2
18150-20020020.025125.6
18150-25025026.031331.9
18200-10052532520010010.012713.0190301248
18200-15015015.019019.4
18200-20020020.025325.8
18200-30030031.037938.7
22250-10063538525010010.012913.22402210352GSBR8A
GSBR8B
GSBR8C
GSBR8D
(Click here)		409
22250-15015015.219319.6
22250-20020020.025726.2
22250-30030031.038439.2
22250-40040041.051152.1
22270-34567040027034535.052853.926012.5367531
22270-50050051.076377.9
22270-70070071.01065108.7
22290-74570041029074576.01160118.4280377556
22290-84584586.01314134.1
22300-20074044030020020.025726.229010407469
22300-25025026.032132.8
22300-30030031.038539.3
22360-21583347336021522.028429.0350440523
22360-34534535.045646.5

Part Number 

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30
45
60
  1. 1
Part Number
FGS22360-345
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipMin. Length Lmin
(mm) 		Gas Reaction Force 1 (at Max. Length - 10mm Stroke)
(N) 		Stroke
(mm) 		Rod Dia. (B)
(Ø) 		Cylinder Dia. (A)
(Ø) 		Max. Length Lmax
(mm) 		Operating Temperature
(°C)

MYR 133.64

1 Piece(s)Available 4 Day(s) or more 4733453601022833-20～60

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  1. 1

About Gas Spring

· About Gas Spring
A compressed gas (nitrogen gas: non-flammable) is sealed in a closed cylinder,
the reaction force of this gas is used as a spring. Despite its compact size,
this gas spring can provide a small spring constant with a large initial load,
making it suitable for a wide range of applications, including various types of machinery,
furniture, automobiles, and office automation equipment.

· Features of mounting orientation limited type gas spring
1. In spite of its size and weight, large spring (reaction) force can be obtained.
2. Spring (reaction) force is almost constant throughout its stroke.
3. Can be designed to meet specific requirements for a wide range of applications.
4. Set the tube side upward and the rod side downward, and use within the angle range shown in the right figure.

Gas Spring Mounting Orientation Limited Type

 

[ ! ] Precautions for Use (Common to FGS, FGSS, HFGSS, FRGSS, GSSF, and GSKSF)
· Pay attention to the temperature of gas springs during use. Do not store for a prolonged duration. Otherwise, the seal will deteriorate prematurely, causing a decrease in reaction force.
(Product temperature range: FGS, FGSS, GSSF, GSKSF: -20°C to 60°C / HFGSS: -20°C to 80°C / FRGSS: -30°C to 80°C. Some products have different temperature ranges. Please check the relevant page.)
· Gas reaction forces have slight tolerances that vary depending on the product and may change with temperature.
· Reaction force may decrease depending on the operating environment and times of use. Please replace it when it cannot reach the necessary reaction force.
· Do not store or use in environments where the rod may rust, or in chemical atmosphere. Furthermore, do not paint the gas spring.
· Do not damage the cylinders and rods. If rods are wrapped with tape or plastic string, adhesives or fibers are stuck to its surface and then, into the inside, resulting in gas / oil leakage.
Be sure to see if there is no rust, scratches, adhesives or foreign objects on the rod before use.

· Do not apply forces like bending load and torsion to the cylinder and rod. Receiving load only with gas springs results in unbalanced load, which causes early deterioration of the seal, abnormal noise, and gas / oil leakage. To ensure proper use, please note the followings:

For Rotary Motion
· Increase the strength of the door itself to prevent the gas spring mounting part from tilting.
· Ensure to prevent gaps and looseness on the hinge to remain the rattling-free state.
For Linear Motion
· Install guide rails, etc. to prevent lateral force to the gas spring.
· Use two or more gas springs as necessary to ensure that the force is applied evenly.
· Do not extend the gas spring beyond its maximum length. Even in the maximum stroke (during compression), it must remain about 10 mm away from the stroke end.
Do not extend and compress at high speeds (with 1 m/s or more).
· Use FGS with the cylinder side oriented upward and the rod side oriented downward, so that internal oil protects the rubber seal.
For FGS and FRGSS, do not tilt more than 60 degrees. When it is necessary to temporarily store, do not tilt more than 60 degrees.
· Although there is no restriction in the use angle for the FGSS, HFGSS, GSSF, and GSKSF type, downward use of the rod is recommended.

Selection Supporting Information

About Initial Selection

1. Calculate the necessary reaction force (Fg) through the following formula, then find out possible part numbers.

Fg =W × L2
L3
Fg: Necessary reaction force (at maximum length)
W: Weight of doors, etc.
L2: Horizontal distance between fulcrum (door hinge, etc.,) and the center of gravity
L3: Vertical distance between fulcrum (door hinge, etc.,) and the axis of gas spring
 

2. Select Fg x 1.1 or more for the gas spring reaction force.

Gas reaction force has a tolerance of about ±15%.

3. If required reaction force (F x 1.1) is larger than the reaction force at the maximum length of gas spring
-( ) mm, use 2 or more springs.

4. Reaction forces are designed at 20°C. Reaction forces increase or decrease as the temperature changes.


About Final Selection
· The load may vary depending on door angles or gas spring mounting positions.
Calculate the reaction force moment based on the subject design drawing.
· When the door is stopped in the horizontal position, it is held in place by the gas spring and lifting force.
The required lifting force (Fh) can be determined by considering the balance of the moment
at the center of rotation. The moment can be calculated by multiplying the load by the length of the arm.
 
Fg: Necessary reaction force (at maximum length)
Fh: Lifting force
W: Weight of doors, etc.
L1: Distance between the fulcrum and the operating position
L2: Horizontal distance between fulcrum (door hinge, etc.,) and the center of gravity
L3: Vertical distance between fulcrum (door hinge, etc.,) and the axis of gas spring
θ: The angle between the perpendicular line from the fulcrum and the axis of the gas spring
n: Number of gas springs used

Gas reaction force at the maximum length
- 10 (5) mm and the maximum length (Lmax.)
- (S) mm are listed in this catalog.
Gas reaction force generally changes proportionately.
If the gas reaction force on a certain stroke is required,
connect the 2 points with a straight line as shown in
the table below and read the value on the stroke to conjecture.



[ ! ] f = Internal Sliding Resistance (Theoretical Value x 0.1)

Calculating the moment when the door is fully open

Fh=(W×L2−n×Fg×cos⁡(𝜃)×L3)
L1

· Adjust the lifting force (Fh) determined using the above formula to be in the -2 to -7 kgf range.
When this lifting force (Fh) is positive, the door will descend due to its weight if the gas reaction
force is not applied. A latch or other fastening is required to hold the door open. Conversely,
if the negative value of the operating force is large, a large force is required to close the door.
Calculating the moment when the door is fully open
· As with the fully open state, the lifting force (Fh) when the gas spring is installed and closed is calculated using
 
Fh=(W×L2−n×Fg×cos⁡(𝜃)×L3)
L1

· Adjust Fh force to be in the 2 to 7 kgf range. When this lifting force (Fh) is negative, the door will open
using only the force of the gas spring. For this reason, the door must be secured with a stopper,
magnet, etc.

· The lifting force varies depending on the distance between the gas spring and the fulcrum and the gas
reaction force depending on whether the door is open or closed, but the calculation method is the same
whether the door is fully open or fully closed.
· At some point during the opening and closing of the door, its weight moment around the fulcrum and
the gas spring's gas reaction force moment will balance out, resulting in a lifting force of 0 (zero).
If the sign of the lifting force is the same (positive, negative) when the door is fully open and when
fully closed, no balance point exists.

· Please review the calculation results above, and select the best option by repeating the calculation process,
changing the installation point or gas spring, etc. exists.
 

Basic Information

Gas Spring Type Mounting Orientation Limited Type Material Rod S20C Material Cylinder STKM11A (Carbon Steel Hollows for Machine Structural Use)
Operating Direction Range Within 60ﾟ with Rod Facing Downward Type Gas Springs

Please check the type/dimensions/specifications of the part FGS22360-345 in the Gas Springs - Mounting Orientation Limited Type series.

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Specification/Dimensions

  • type

    • FGS

    Clear

  • Min. Length Lmin(mm)

    • 132
    • 152
    • 172
    • 182
    • 184
    • 245
    • 270
    • 325
    • 385
    • 400
    • 410
    • 440
    • 473

    Clear

  • Gas Reaction Force 1 (at Max. Length - 10mm Stroke)(N)

    • 30
    • 50
    • 55
    • 70
    • 75
    • 80
    • 85
    • 100
    • 120
    • 150
    • 200
    • 215
    • 250
    • 300
    • 345
    • 400
    • 500
    • 700
    • 745
    • 845

    Clear

  • Stroke(mm)

    • 49
    • 69
    • 89
    • 97
    • 99
    • 120
    • 150
    • 200
    • 250
    • 270
    • 290
    • 300
    • 360

    Clear

  • Rod Dia. (B)(Ø)

    • 7
    • 8
    • 10
    • 12.5

    Clear

  • Cylinder Dia. (A)(Ø)

    • 15
    • 18
    • 22

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  • Max. Length Lmax(mm)

    • 181
    • 221
    • 261
    • 281
    • 365
    • 420
    • 525
    • 635
    • 670
    • 700
    • 740
    • 833

    Clear

  • CAD

    • 2D
    • 3D

    Clear

Days to Ship

    • All
    • 1 Day(s) or Less
    • 2 Day(s) or Less
    • 4 Day(s) or Less

    Clear

Specify Alterations

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(mm) 		Gas Reaction Force 1 (at Max. Length - 10mm Stroke)
(N) 		Stroke
(mm) 		Rod Dia. (B)
(Ø) 		Cylinder Dia. (A)
(Ø) 		Max. Length Lmax
(mm) 		Operating Temperature
(°C)

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