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A book Concerning: AMF Pneumatic Toggle Clamps

AMF pneumatic toggle clamps have definite advantages over the manual toggle clamps:
- Relieve Operator of strenuous clamming movement.
- A number of clamps can be used simultaneously.
- A number of clamps can be operated with different sequences
- One or more clamps can be controlled from the machine panel.
- One or more clamps can be operated from different positions.

Advantages of the toggle action..
- In the event of a failure, clamp stays locked.
- Low air consumption with maximum leverage.
- Large opening angle, clearing the component for easy removal.
- Assures maximum power-to movement ratio.

Selection guide
The vertical pneumatic toggle clamp no. 6820 correspond in design and dimensions to the mechanical toggle clamp no. 6800. Therefore hand operated clamps can be replaced with pneumatic toggle clamps - if required.

Heavy duty AMF pneumatic toggle clamps no. 6825C/CE and no. 6826/CE are recommended to be incorporated in special and transfer machines. Tempered and ground bolts guarantee long life. The push-type pneumatic toggle clamp no. 6850 corespondents in design and and dimensions to the mechanical toggle clamp 6842 when pushed/closed, maximum forces of 2.5 - 10 kN can be reached.

Clamping and holding forces

As already explained for the hand operated toggle clamps, the selection of the correct clamp is of utmost importance. To select the correct size of pneumatic clamp, apart from the holding force, the possible holding force at 6 bar (87 psi) air pressure is indicated in the tables [other pressure media may also be used at pressure up to max. 10 bar (145 psi)].
F3 is the possible clamping force at the end of the arm.
F4 is the force applied at the fulcrum.
F5 is the piston force at 6 bar air pressure.

As an aid to tool designers, installation drawings (scales 1:1 and 1:2) and our CAD library are available online. Please click here.