PLF060-5 + 400W Servo, Focus on Start/Stop Frequency & Positioning Cycle.

A shorter transmission chain helps control module size, And reduces additional supports and connecting parts.
Balances Screwdriving Cycle Time & Output Torque, Still allow capacity for tightening peaks and acceleration.
A Typical Configuration for Rapid Starts & Stops, Finally check load inertia ratio and cycles per minute.