Core Technical Specs - Applicable pipe OD: 219mm – 3620mm (expandable to 4200mm upon customization) - Process standard: Fully compliant with ISO 21809, DIN 30670, SY/T 0413, API pipeline coating norms - Coating structure (3LPE gold standard): 1. Bottom FBE layer: ≥120μm, chemical bonding, anti-cathodic disbondment 2. Middle adhesive copolymer: 170–250μm, seamless interlayer fusion 3. Outer HDPE layer: 2.5–4.2mm, impact & soil stress resistance - Maximum hourly coating capacity: 800 ㎡/h, 2–3x output vs conventional large-diameter lines - Comprehensive energy saving: 18%–25% lower power consumption per square meter coating - Surface pretreatment: Automatic shot blasting to Sa 2.5 grade, consistent roughness for stable adhesion - Control system: Siemens PLC + full real-time thickness sensing, zero manual visual calibration
