draw bar hitch head 
Device that secures the hay baler to the tractor’s towing hitch.
tow bar
Metal part consisting of a towing hitch that connects the hay baler to the tractor.
pickup cylinder
Rotating unit that picks up the cut grass (such as straw or forage) to convey it to the plungerhead.
power-takeoff shaft
Device that hitches the machine’s shaft to the tractor’s power train to transmit the necessary power to operate it.
plungerhead
Mechanical device that pushes the hay or straw into the press chamber by squeezing it forcibly.
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