Parts Placer is cam actuated.
Press Release Summary:

Original Press Release:
Swanson Series at Parts Placers And Probes
The all new Swanson Series AT 1-2-3 are low-cost cam actuated parts placers, available in either through shaft or as bearing supported (belt or chain) independent units. Parts placers can also be furnished with independent motor and reducer packages.
Companion modules are designated at AT-P4 modules for Push, Probe, Pick, and Place functions. These units are also available in three sizes and in either through shaft or stub shaft mountings.