Watch a bent, freshly hardened shaft enter an automatic cell. A loader seats it on the rests, it rotates under the probes, and the runout map appears before any pressing. The head strokes the worst bend once, then waits: probes re-measure and the controller adjusts the next stroke for springback, so batch-to-batch springback variation no longer decides quality. When the part clears, the loader swaps it for the next blank and the verified shaft is unloaded to the out-feed queue.
This closed-loop behavior lets hardened and soft shafts meet the same drawing: 0.02–0.05 mm on automotive parts, ≤0.02 mm on precision, 0.10–0.30 mm/m for general work. Loading automation scales with volume — one operator runs one or two CNC machines or several automatic units — for 5–10 times manual output in 20–90 second cycles. The process is in our article on how the straightening machine works.
Typical candidates are gear shafts, input shafts, cylinder rods, and pump shafts distorted by carburizing or induction hardening. Cells can include gantry or robotic handling, runout data export, and remote support; frames for large rotors reach the 1000-ton class. Supply is 380–480 V three-phase and lead time 60–120 days. Explore options on the automatic machine lineup page.
Automation proposals need a production view: shifts, takt time, and the parts list. Present those to our line designers and a gantry or robot loading concept comes back with the straightening machine — contact us with your details.
Springback-adjusted loop for hardened and carburized shafts
0.02–0.05 mm / ≤0.02 mm TIR on automotive and precision parts
One worker tends one or two CNC presses or several auto cells
20–90 seconds per part, 5–10× manual output
Gantry or robotic loading with runout data export
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