The video shows point straightening — localized press correction exactly where the shaft is bent. The measuring head identifies the angular position and magnitude of each high spot, the ram presses at that single point with calibrated force, and the shaft is re-measured immediately, repeating only as needed rather than working the entire part. Because force is concentrated on a small area, even shafts with tight local tolerances can be corrected without disturbing sections that are already straight.
This targeted approach keeps cycles short at 20–90 seconds per shaft and avoids unnecessary yielding of good sections, which helps protect heat-treated surfaces. Short shafts typically need 2–3 measuring points while longer parts use more, with the loop converging on TIR 0.02–0.05 mm for automotive work. See how the readings are taken in our article on TIR runout measurement.
Point straighteners are widely used for gear blanks, armature and motor shafts, small transmission shafts and cylindrical fastener-style parts in medium and high volumes, and they slot into cells with simple conveyor or robot loading. The automatic machine line-up covers small through medium shaft sizes.
Talk to our straightening specialists about your parts — send drawings and target tolerances, and visit us in Tengzhou to see assembly in progress.
Localized pressing at measured high points only
No unnecessary yielding of straight shaft sections
2–3 measuring points on short shafts, more on long parts
20–90 second cycles; TIR 0.02–0.05 mm automotive grade
Suits gear blanks, armature shafts and small transmission parts
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