Pipe Straightening Machine

The elliptical translation curve roller pass geometry applies corrective force gradually across nine rollers, eliminating common defects such as spiral indentation and surface scratching. Output camber of ≤0.8mm/m is achieved in a single pass, even from incoming stock bent up to 30mm/m, reducing rework and downstream rejection rates.

Two Y160L-6/4 motors (9/11 kW each) drive all rollers in both directions through a 10.35:1 transmission ratio. This eliminates slippage and ensures uniform material feed at 22–32 m/min, allowing operators to match line speed to upstream or downstream processes without sacrificing straightening quality.

Each of the nine straightening rolls is machined from 9Cr2Mo chromium-molybdenum alloy steel — a grade selected for its high hardness, wear resistance, and dimensional stability under continuous thermal cycling. The Φ150 × 260 mm roll size provides a wide contact zone that distributes straightening force evenly, extending intervals between roll replacement.

A single machine handles both ferrous metals (carbon steel, stainless steel) and non-ferrous metals (copper, aluminum, brass) across a wide diameter range. Switching between pipe and solid bar work requires only roller gap adjustment via the handwheels — no changeover of roll sets is needed within the specified diameter range.

At 2500 × 900 × 1700 mm, the machine occupies a modest footprint while its heavy-gauge welded housing and precision-bored bearing seats maintain alignment under sustained production loads. The painted finish provides corrosion protection suited to factory floor environments.