In this video a general-purpose automatic shaft straightener handles a stepped shaft through the full cycle: automatic support positioning, runout measurement at the bearing seats, closed-loop hydraulic correction and a final verification pass — with no operator judging bend by hand or reading dial indicators. Stepped diameters, keyways and spline sections are selected in the part program so the gauging skips features that could interfere with the reading.
A single machine commonly covers a diameter window such as Ø20–120 mm, with support and tooling changes plus program selection for different part numbers. The loop brings ordinary machined shafts from 0.10–0.30 mm/m into automotive tolerance of 0.02–0.05 mm, running 20–90 seconds per shaft — 5–10 times faster than a floor press. Measurement details are in our note on TIR runout inspection.
It is the default choice for gear shafts, transmission input and output shafts, pump shafts and motor shafts in batch production, with conveyor or gantry loading available, and setup for first-piece checks is quick enough to keep small batches economical. Every correction is logged for quality records. Browse configurations in the automatic straightening machine range.
Share your shaft drawings and tolerances through the contact page and our engineers will recommend a layout; customers are welcome to inspect the factory.
General-purpose straightener for stepped and gear shafts
Single machine commonly covers a Ø20–120 mm window
0.10–0.30 mm/m in; 0.02–0.05 mm automotive TIR out
20–90 second cycles — 5–10 times faster than hand work
Logged measurement and correction data for quality records
SITE：
