Panasonic AV4, Manual

Technical Terminology & Cautions for Use

AECTB36E   201811-T

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 Types of actuators

Shape

Classification

Pretravel 

(PT)

Overtravel 

(OT)

Operating 

Force 

(OF)

Vibration 

Shock

Features

Pin plunger

Small

Small

Large

Out-

standing

Appropriate for linear short-stroke action. Pin plunger acts directly on snap 
action mechanism, enabling high-precision positioning. Amount of movement 
after operation is smallest among all of the actuators, however, so reliable 
stopper is required.

Hinge lever

Large

Medium

Small

Possible

Little force required for operation. Appropriate for use with low-speed cams and 
dogs; has large stroke.
Lever available in various shapes to fit operating unit.

Simulated roller 
lever

Large

Medium

Small

Possible

Tip of hinge lever is bent into a semi-circle, enabling use as a simple roller type.

Leaf lever

Large

Large

Small

Excellent

Play in lever is used to assure maximum stroke. Construction provides for 
space where lever is attached, for outstanding resistance to freezing.

Hinge roller lever

Large

Medium

Small

Possible

This is a hinge lever with a roller, and can be used with high-speed cams and 
dogs.
The force required for pin plunger action is lighter than that of the lever, and the 
stroke is longer.

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