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[VI] Since 2014 · Intelligent Straightening
[VI] Founded in 2014, Shangda is a leading enterprise dedicated exclusively to intelligent straightening and shaping equipment, integrating R&D, production, sales, after-sales service, and technical support.
Hydraulic straightening machines engineered for precision, reliability, and production efficiency.
Closed-loop hydraulic straightening for tubes, pipes, and cylindrical workpieces. Multi-point laser measurement with AI-driven force vector correction. Delivers verified straightness down to ±0.01mm across full workpiece length.
View Details →A closed-loop hydraulic straightening press built for high-volume shaft production. Multi-point laser measurement, real-time deflection correction, and automatic loading/unloading combine to deliver ±0.005mm repeatable positioning accuracy with cycle times as fast as 30 seconds per workpiece.
View Details →A closed-loop hydraulic straightening system engineered specifically for square and rectangular tube profiles. Multi-point laser measurement, automatic correction cycles completed in 30 seconds to 2 minutes, and straightness control down to ±0.03mm on precision workpieces.
View Details →Correct spiral twisting and diagonal bending in square and round tubes — deformation that conventional straightening presses cannot address. 65% of scrapped workpieces recovered to tolerance
View Details →[VI] Founded in 2014, Shangda is a leading enterprise dedicated exclusively to intelligent straightening and shaping equipment, integrating R&D, production, sales, after-sales service, and technical support.
Learn More →Expert articles on straightening technology, industry trends, and application guidance.
Starting at 3.431 mm of bow, a 5 m steel round bar was straightened to 1.313 mm using 250 t point-pressure and multi-point sensors.
Watch →Even with a dial indicator and a press, getting a shaft down to under a few tenths of a millimeter of runout takes patience — and a lot of back-and-forth. When production volume picks up, manual straightening becomes a real bottleneck.
Watch →I’ve walked through too many pipe fabrication shops where the 8-meter lengths get straightened on a 200-ton press with a simple V-block setup—and the results are all over the place.
Watch →Aluminum tubing often bows due to residual stress or handling. Learn repeatable straightness checks, safe correction methods, when to scrap, and when automation pays off.
Read More →Alloy bars bend from residual stress or handling. Learn to verify runout, use hydraulic straightening for controlled deviations, and avoid risky fixes.
Read More →One inspector says a shaft is fine at 0.20 mm. Another rejects the same part at 0.25 mm.
Read More →When a machined 4140 shaft or bar comes out of heat treat with a visible bow, it's easy to blame the quench.
Read More →The machine measures the shaft’s runout at multiple points, calculates the exact press stroke and position needed, and applies force in a closed loop—often reaching straightness within 0.01 mm.
Read More →Runout that was within 0.02 mm before heat treat suddenly jumps to 0.3 mm, 0.5 mm, or worse. It’s one of those headaches every production shop knows.
Read More →[VI] Get in touch with our engineering team for a free consultation and machine recommendation.
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