Displacement sensors resolve 0.001 mm, the algorithm computes press depth and correction order per point, and the actuators execute it. The machine re-measures after each pass rather than trusting a preset squeeze, which holds repeatability across a full shift regardless of who is standing at the panel.
Asymmetric sections rotate as they bend. Correcting twist and out-of-round in the same cycle as straightness matters most on brazed manifold assemblies, where a separate post-weld twist correction would load the joints in the direction they are weakest.
Every profile carries a stored recipe: measurement planes, force vectors, target tolerance, pass limit. Switching from a 40 x 40 x 2 mm square tube to a diversion manifold is a recipe recall plus a fixture swap, not a manual re-teach that only one operator on the shift knows how to perform.
Technical data
Two numbers drive every specification below: what the sensor can see, and what the actuator can correct. Everything else is sized from your part drawing.
Straightening accuracy is quoted per point after closed-loop re-measurement, not as a single stroke value. Confirm tolerance on your actual part section during a sample test.
Applications
We have installed this machine class across five production families. In four of them, the bottleneck was never machine speed. It was a profile that the existing round-bar straightener could not finish without a second operation.
Diversion tubes, manifold blocks and cold-plate tubing are straightened before the brazing step, where port alignment decides whether the assembly leaks. Torsion is corrected in the same pass as straightness so brazed joints are never loaded a second time.
Parallel-channel and serpentine cooling tubes must sit flat enough to seat in the bonding fixture. A tube that is straight but twisted will not clamp evenly, and the gap shows up later as a thermal defect, not as a straightness defect.
Square tube boom sections, ROPS frames and hydraulic cylinder tubes. Heavy wall thickness means high correction force, and the point-pressure tooling keeps the mill scale and the corners intact.
Square and rectangular tube used in body frames and handrail sections, where a twist of a few tenths of a millimetre over several metres shows up as a visible gap at final assembly.
Asymmetric structural sections and drilling tools, where section geometry varies along the length and the correction sequence has to be recalculated at each measurement plane rather than repeated.
Ten to twenty pieces of your square tube, cooling manifold or asymmetric section is enough to run a straightening trial. You get back measured before-and-after data, a cycle time per piece, and the correction sequence the machine would run on your part — not a generic quotation.
Square tube · rectangular · asymmetric · manifold
Square tube that twists instead of bowing. A diversion manifold that bends along its brazed port line. Rectangular stock that springs back the moment the press releases. Those are the parts a round-bar straightener cannot finish — and the reason the Diversion straightening machine, liquid-cooled Manifold manifold automatic straightening machine, square tube straightening machine, shaping press machine exists. Independent force vectors, full-length contour scanning, and a closed loop that re-measures after every pass.
Key specifications
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