![Page 1: Controllable Gas Springs KF2. Step 1 Forming + ? Step 2 Piercing Flanging + ? Step 3 Trimming + ? Add functionality Increase production rates Reduce tooling](https://reader036.vdocuments.mx/reader036/viewer/2022062409/5697bfda1a28abf838cb0160/html5/thumbnails/1.jpg)
Controllable Gas Springs KF2
![Page 2: Controllable Gas Springs KF2. Step 1 Forming + ? Step 2 Piercing Flanging + ? Step 3 Trimming + ? Add functionality Increase production rates Reduce tooling](https://reader036.vdocuments.mx/reader036/viewer/2022062409/5697bfda1a28abf838cb0160/html5/thumbnails/2.jpg)
Step 1Forming
+ ?
Step 2PiercingFlanging
+ ?
Step 3Trimming
+ ?
Add functionality • Increase production rates • Reduce tooling costs
Controllable Gas Springs KF2
![Page 3: Controllable Gas Springs KF2. Step 1 Forming + ? Step 2 Piercing Flanging + ? Step 3 Trimming + ? Add functionality Increase production rates Reduce tooling](https://reader036.vdocuments.mx/reader036/viewer/2022062409/5697bfda1a28abf838cb0160/html5/thumbnails/3.jpg)
Controllable Gas Springs KF2
Lockable piston rod
True nitrogen gas spring
Pneumatically operated
Compact self contained design
PED approved
Advantages
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Controllable Gas Springs KF2KF2 gas springs are lockable at press BDC
Press
KF2
Time
Str
ok
e
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Controllable Gas Springs KF2Function
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Controllable Gas Springs KF2Application type: Dual forming
Panel: door inner Drawing operation
Combines two forming operations into one toolFunction within the tool, not the pressSingle action press instead of double action pressLowers overall tooling costs
![Page 7: Controllable Gas Springs KF2. Step 1 Forming + ? Step 2 Piercing Flanging + ? Step 3 Trimming + ? Add functionality Increase production rates Reduce tooling](https://reader036.vdocuments.mx/reader036/viewer/2022062409/5697bfda1a28abf838cb0160/html5/thumbnails/7.jpg)
Application type: Dual depth forming
Controllable Gas Springs KF2
Panel: door inner
Blank holder
KF2
![Page 8: Controllable Gas Springs KF2. Step 1 Forming + ? Step 2 Piercing Flanging + ? Step 3 Trimming + ? Add functionality Increase production rates Reduce tooling](https://reader036.vdocuments.mx/reader036/viewer/2022062409/5697bfda1a28abf838cb0160/html5/thumbnails/8.jpg)
Controllable Gas Springs KF2Application type: Improve part quality
Panel: rear quarter
Baby spring pad
C post
Rear quarter window
Rear passenger
window
![Page 9: Controllable Gas Springs KF2. Step 1 Forming + ? Step 2 Piercing Flanging + ? Step 3 Trimming + ? Add functionality Increase production rates Reduce tooling](https://reader036.vdocuments.mx/reader036/viewer/2022062409/5697bfda1a28abf838cb0160/html5/thumbnails/9.jpg)
Application type: Improve part qualityControllable Gas Springs KF2
Panel: tailgate inner
Critical areas requiring additional spring pad force control
Critical areas requiring additional spring pad force control
Solution: individual baby spring pads Solution: individual baby spring pads
Baby spring pad supported by KF2Baby spring pad supported by KF2
![Page 10: Controllable Gas Springs KF2. Step 1 Forming + ? Step 2 Piercing Flanging + ? Step 3 Trimming + ? Add functionality Increase production rates Reduce tooling](https://reader036.vdocuments.mx/reader036/viewer/2022062409/5697bfda1a28abf838cb0160/html5/thumbnails/10.jpg)
Model Stroke length
Initial force (N)
End force (N)
KF2 1500 10-160 15000 22000 KF2 3000 10-160 30000 42000 KF2 5000 10-160 50000 74000 KF2 7500 10-160 75000 98000
Model Adjustable stroke length -8 mm +7mm
KF2-A 1500 10,20,,,,,,,,,150,160 KF2-A 3000 10,20,,,,,,,,,150,160 KF2-A 5000 10,20,,,,,,,,,150,160 KF2-A 7500 10,20,,,,,,,,,150,160
Controllable Gas Springs KF2Models
KP PassiveModel Stroke
length KP 1500 30 KP 3000 30 KP 5000 35
KF2 active gas springs:
Fixed stroke lengths: 10 to 160 mm
KF2-A gas springs:
Adjustable from
+7mm to – 8mm
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Spacers
1mm 2mm 4mm 8mm
Controllable Gas Springs KF2How to adjust the stroke length of a KF2-A
KF2-A 1500-040
No
min
al s
tro
ke4
0 m
m
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Controllable Gas Springs KF2Accessories
Valve Block with Control Block function
Mechanical pressure switch
Inbuilt mechanical control
Upper die
Liquid cooler unit
NC cooler unit
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Work cycle for lockable gas springs
Stroke
EnergyEnergy
KF2TUHeat
Controllable Gas Springs KF2Heat Generation
Work cycle for standard gas springs
Fo
rce
Fo
rce
Energy = Force x Stroke
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Controllable Gas Springs KF2Cooling & Heat Factor Reduction
KF2 modelH
ea
t F
act
or
= No Cooling Required
= Liquid Cooling Range
= Nitrogen Cooling Range
To reduce Heat Factor:
Add more KF2 springs & reduce overall gas charge pressure
Increase KF2 model size and decrease gas charge pressure
Reduce press cycle frequency
Heat Factor = Stroke Length x Frequency
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Heat Removal
Liquid Cooling:
10 kW or 25 kW cooling capacity
Increases SPM up to 400%
Requires 380V AC power supply
Controllable Gas Springs KF2
Nitrogen Cooling:
1.5 kW cooling capacity
Increases SPM up to 500%
Requires 24V DC power supply
Nitro Cooler
KF2
Cooler Unit
KF2
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Step 1Forming
+ ?
Step 2PiercingFlanging
+ ?
Step 3Trimming
+ ?
Add functionality • Increase production rates • Reduce tooling costs
Controllable Gas Springs KF2