Type overview of knee lever clamps from Ganter
Vertical toggle clamps
Operating lever and clamping bar move in the same direction.
In the clamped position, the operating handle is in a vertical position.
For applications where substantial forces and many tightening cycles occur, “long-life” versions are available.
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Horizontal toggle clamps
Operating lever and clamping bar move in opposite directions.
In the clamped position, the operating handle is in a horizontal position (flat version).
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Push-pull type toggle clamp
On these clamps, the swinging movement of the operating handle is converted into an axial movement to push or pull the plunger.
With two exceptions (GN 841), the push-pull type toggle clamps lock in both end positions. This means that they can be used as both pull clamps and thrust clamps.
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Latch type toggle clamps
On these clamps, the swinging movement of the operating handle is converted into an axial movement to pull the hook.
Latch type toggle clamps are available with and without locking mechanism.
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Pneumatically operated toggle clamps
These toggle clamps combine the advantages of clamping by the toggle principle (clamp remains in the clamping position even in the event of air pressure loss!) with the advantages offered by pneumatics, i.e.:
- Constant clamping force FS independent of the operator.
- Several clamps can be operated simultaneously via a control valve.
- Pneumatic toggle clamps can be energized from various operating points (remote control, co-ordinated and controlled by other machines).
- Some versions are available with an air cylinder which allows control via a proximity switch, to give an electrical impulse when the clamp has reached a specific position within its clamping cycle.
Pneumatic toggle clamps are available as vertical and push-pull versions.
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