Selection guide
Servo feeder or mechanical feeder?
There are two ways to feed strip into a press line. The difference is not only price: part tolerance, die change time and line flexibility all change.
Side-by-side comparison
| Criterion | Servo feeder | Mechanical / pneumatic feeder |
|---|---|---|
| Pitch accuracy | Closed loop with servo motor and encoder; tolerance holds in series production | Limited by mechanical cam or pneumatic stroke; pitch drifts with wear |
| Changing the pitch | Value entered on the panel, takes seconds | Requires mechanical adjustment or a cam change |
| Die change | Recipe memory for up to 250 dies; no re-setup | Re-adjustment on every die |
| Press synchronization | Fully synchronized via cam signal, pilot release standard | Limited; synchronization gets harder at high stroke rates |
| Investment and running cost | Higher up front, lower scrap and downtime | Lower up front, higher setup time and scrap |
Choose a servo feeder if
- Your part tolerance is tight and must hold across a production run
- You change several dies within a shift
- You use pilot pins or run at high stroke rates
A mechanical feeder is enough if
- You run long series with a single die
- Pitch tolerance is loose and surface is not critical
- Budget constraints drive the initial investment
In short
As die variety grows, the setup and scrap savings of a servo feeder close the initial price gap. If you produce one part in long runs, a mechanical feeder is still a reasonable choice.
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