China Automobile Tube Line Factory & Precision Solutions

With our closed-loop servo haul-off pulling unit paired with dual-plane high-frequency laser measuring gauges and precise vacuum calibration tanks, BAOD lines reliably hold outer diameter (OD) tolerances within ±0.02 mm to ±0.03 mm and concentricity tolerances above 95% on materials like PA12, PA612, and TPU.

Delamination typically results from mismatched melt flow viscosities, thermal degradation at flow dividers, or inadequate tie-layer plastication. BAOD designs custom spiral mandrel co-extrusion die heads where each polymer channel has independent thermal monitoring and tuned melt distribution runners. This ensures uniform annular velocity at the confluence point, producing molecular-level chemical bonding along the boundary layers.

Yes. When co-extruding inner barrier linings for aggressive fuels or chemicals, we configure extruders with specialized high-nickel alloy tooling (such as Inconel or Hastelloy equivalent liners) and ceramic heater bands capable of continuous operations up to 380°C without risk of hydrofluoric corrosion.

We deploy field engineering technicians worldwide for installation, plant-floor calibration, and operator training. Furthermore, all BAOD automated machines feature IoT industrial VPN gateways enabling our senior software engineers in Jiangsu to remotely inspect PLC routines, evaluate servo drive telemetry, diagnose sensors, and upgrade line parameters in real-time.

Our single-wall corrugators utilize dual-chamber vacuum suction combined with synchronized parison pre-blow pressure. This dual differential control draws molten polymer into the mold teeth while simultaneously maintaining constant internal tube wall support, preventing apex thinning and guaranteeing burst pressure compliance.