High-Quality GM Pole Manufacturers & Exporter

In international municipal and electrical engineering parlance, GM Pole denotes Galvanized Metal (or Galvanized Mast) Pole. It encompasses heavy-duty structural hollow sections engineered from structural carbon steels (such as Q235, Q355, ASTM A572 Grade 50) that undergo complete post-fabrication hot-dip zinc immersion. Applications range from urban low-voltage power distribution and highway illumination to multi-cable telecommunication arrays and 15m–40m high mast sports floodlighting.

Zinc coating longevity is governed by metallurgical iron-zinc diffusion layers rather than simple surface adhesion. Our components undergo an automated multi-stage chemical pretreatment: caustic degreasing, hydrochloric acid pickling to eliminate mill scale, aqueous fluxing (ammonium chloride/zinc chloride), followed by full immersion into molten zinc baths maintained at 445°C–455°C. This creates four distinct metallurgical phases (Γ, δ, ζ, and pure η), ensuring an average coating thickness between 86 μm and 120 μm with zero peeling or blistering under severe thermal shock.

Yes. Xintong is an industry-recognized OEM/ODM manufacturer of motorized raising-and-lowering high mast systems (15 to 45 meters). Our assemblies feature internal bi-directional multi-drum winches, stainless steel hoisting cables (AISI 316), redundant mechanical latching barrels (to relieve cable tension when seated), hermetically sealed explosion-proof IP65 electric driving motors, and lightning arrestor spires tested for extreme wind loads up to 60 m/s.

For major EPC tenders, our engineering department provides a complete, bid-ready technical submittal dossier within 48 hours. This includes: (1) Finite Element Analysis (FEA) wind stress reports; (2) Detailed CAD fabrication blueprints detailing baseplate hole diameters, cable slots, and handhole frames; (3) Foundation civil recommendations and anchor bolt sizing; (4) Certified Mill Test Certificates (MTC) to EN 10204 Type 3.1; (5) DIALux photometric simulations guaranteeing lux levels and lux uniformity; and (6) ISO 9001, ISO 14001, ISO 45001, and CE factory audit credentials.

To prevent transit abrasion, surface staining, and wet-storage white rust (zinc hydroxide formation), all poles are individually wrapped with spirally-applied high-density bubble polyethylene film and protective woven geotextile fabric. Timber battens and composite rubber blocks segregate adjacent metal surfaces within 40ft High Cube (HC) or Open Top (OT) shipping containers, with heavy steel banding secured to marine deck tie-down points.

Because Xintong operates 7 independent forming, welding, and galvanizing lines within our 100,000 m² facility, our standard fabrication throughput reaches 300 to 500 finished poles per day. A typical municipal project order of 1,000 street light poles is manufactured, galvanized, quality-checked, and packaged for port transfer within 15 to 21 calendar days following shop drawing approval.