Boiler Serpentine Tube Bending Machine

The machine maintains ±0.2° repeat positioning accuracy over a full 195° rotary bending arc. This level of consistency is critical for serpentine coils where cumulative angle error across dozens of bends can cause misalignment in boiler headers and tube sheets.

An integrated feeding device handles tube stock from 12 to 100 meters, enabling uninterrupted serpentine forming without stopping to reload material. This reduces cycle time and eliminates weld joints that would otherwise create weak points in pressure-rated assemblies.

Supporting tube diameters from Ф32 to Ф76 mm and wall thicknesses up to 12.7 mm, the machine covers the most common tube specifications found in industrial boilers, waste heat recovery units, and chemical process equipment. The R/D ratio down to 1.1 allows tight bends that maximize heat transfer surface area within limited installation space.

With an 8 t·m bending moment, the machine handles thick-wall alloy and carbon steel tubes without spring-back issues or wall thinning beyond acceptable tolerances. The rigid frame and precision die tooling distribute forming loads evenly, extending tool life and reducing maintenance intervals.

Variable tube speed from 0 to 3 r/min gives operators direct control over feed rate, allowing fine-tuning based on material grade, tube geometry, and target bend quality. This flexibility reduces trial waste during setup and supports a broader range of production orders on a single machine.