Planetary-Gear Twin-Spindle Turning: A 24-Second Process and 12-Second Output Interval

The example uses two work spindles for 38 mm diameter planetary gears.

Technical application analysis. 38 mm diameter planetary gears; EMAG VL 1 TWIN application example; two work spindles machining in parallel.

Reference configuration and timing

The example uses two work spindles for 38 mm diameter planetary gears.
It states 24 s machining and a 12 s output interval; an approximately 5 s figure describes a separate auxiliary exchange indicator.

Engineering evaluation

Two parts processed together can change average output without shortening the cutting experienced by each part. Record both the completed batch quantity and the batch start-to-start cycle.

Reversal, second-face machining or inspection changes the scope of the example. Compare systems at the same finished-part boundary, rather than comparing a single operation with a complete two-sided component.

Selection conditions and evidence limits

C028 and C041 form one topic. The 5 s auxiliary figure is not simply added to produce a verified 17 s line cycle, and a separate 20 s two-part account must not be merged into this example.

Application questions

Does each gear undergo only 12 seconds of machining?

No. The cited 12 s is an output interval associated with parallel processing, while the stated machining duration is 24 s.

What changes when a second face is added?

Transfer, reclamping, additional cutting and inspection must be included before the output interval can be recalculated.

Sources and evidence

Reviewed 4 November 2026. Source statements and engineering evaluation are identified separately. The references do not establish a New Partner delivery or customer acceptance result.