Controllable Gas Springs KF2

Step 1Forming

+ ?

Step 2PiercingFlanging

+ ?

Step 3Trimming

+ ?

Add functionality • Increase production rates • Reduce tooling costs

Controllable Gas Springs KF2

Controllable Gas Springs KF2

Lockable piston rod

True nitrogen gas spring

Pneumatically operated

Compact self contained design

PED approved

Advantages

Controllable Gas Springs KF2KF2 gas springs are lockable at press BDC

Press

KF2

Time

Str

ok

e

Controllable Gas Springs KF2Function

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

Application type: Dual depth forming

Controllable Gas Springs KF2

Panel: door inner

Blank holder

KF2

Controllable Gas Springs KF2Application type: Improve part quality

Panel: rear quarter

Baby spring pad

C post

Rear quarter window

Rear passenger

window

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

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

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

Controllable Gas Springs KF2Accessories

Valve Block with Control Block function

Mechanical pressure switch

Inbuilt mechanical control

Upper die

Liquid cooler unit

NC cooler unit

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

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

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

Step 1Forming

+ ?

Step 2PiercingFlanging

+ ?

Step 3Trimming

+ ?

Add functionality • Increase production rates • Reduce tooling costs

Controllable Gas Springs KF2