Watch an automatic straightening press combine hydraulic force with CNC control: the shaft is loaded automatically, probes measure runout without operator interpretation, the servo-controlled ram presses at the calculated point and force, and the part is re-measured in the same fixture — turning a traditional press into a repeatable, documented process. Press force, deflection and final runout are recorded for every piece, replacing the handwritten results typical of manual press cells.
The control stores part programs with support positions, target TIR and force limits, so different shafts change over by recipe rather than by skill. Typical work reaches 0.02–0.05 mm TIR for automotive parts versus 0.10–0.30 mm/m by hand, at 20–90 seconds per piece. Not sure which automation level fits? Our article compares hydraulic, CNC and fully automatic straightening.
These presses suit automotive suppliers and motor and transmission makers who want automatic consistency without a complete production line, integrating with conveyors or robots as volumes grow; one operator can run one or two CNC machines, and quality teams receive a runout record for every batch instead of relying on operator skill. Standard layouts are shown in the automatic machine range.
To discuss your application, contact the SHANGDA engineering team with drawings and annual volume — factory visits in Tengzhou, Shandong are always welcome.
Hydraulic pressing force with CNC measure-and-correct control
Recipe-based changeover — no reliance on operator skill
TIR 0.02–0.05 mm; 20–90 second automatic cycles
Conveyor or robot loading as production volumes grow
One operator runs one or two machines
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