The ram allows the head to be moved in and out of the machine to enable machining of a variety of workpiece configurations. The head is connected to the column via the ram.
The head is attached to the ram via the head adapter. On some machines, this adapter provides a pivot motion and can be positioned by the head tilt worm gear shown below.
Head Tilt Worm Gear
The head tilt worm gear allows the head to pivot up and down.
Head Tilt Locks
When the head is in the desired position, the head tilt locks are tightened.