Full Automatic Fluidized Bed Dip Coating Line For Guardrail Of National Project

Posted by: PECOAT | on September 1, 2026

Full Automatic Fluidized Bed Dip Coating Line For Guardrail 02

Table of Contents

1 Project Background

2 On-site construction

3 Main Technical Parameters of Equipment

4 Application Effect

5 Videos

5.1 Related Posts:

Project Background

This set of equipment is developed for the production of guardrail components for the national South-to-North Water Diversion Project. The project features complex terrain including slope sections, which imposes stringent requirements on the anti-corrosion and weather-resistant performance of guardrails. The guardrail consists of intermediate main posts and joint main posts. Fabricated from Q235B welded special-shaped steel parts, these components require a dual-layer anti-corrosion system of hot-dip galvanizing followed by dip-coating, with a galvanizing weight of 270 g/m², dip-coating film thickness ≥ 0.5 mm, and RAL6010 grass-green finish.

To meet the strict component acceptance criteria of the South-to-North Water Diversion Project, a customized automatic complete dip coating equipment set has been developed to match the process requirements of such guardrail products. It ensures stable mass production of large volume posts and mesh panels, satisfying project delivery schedules and anti-corrosion performance indicators.

On-site construction

Main Technical Parameters of Equipment

Preheating Oven: Overall dimension 19.6 m × 1.5 m × 4.0 m; maximum working temperature 400 ℃; natural gas heating; equipped with digital temperature controller, thermocouple sensors, safety devices and automatic sliding doors.
Curing Oven: Overall dimension 11.6 m × 1.5 m × 4.0 m; maximum working temperature 250 ℃; natural gas heating.
Powder Tank: 3.7 m × 1.35 m × 3.0 m; fabricated from 2.0 mm steel plate.
Powder Tank Lifting Mechanism: Overall dimension 2.4 m × 1.5 m × 4.0 m; 5.5 kW 4‑pole motor; 16A double‑chain; variable‑frequency speed regulation; self‑weight 500 kg; 2.5 T counterweight (customer‑supplied).
Dip‑coating Auxiliary Facility: 1 set of eccentric‑vibration residual‑powder knocking device.
Central Electric Control: Cabinet‑type control cabinet 1.5 m × 1.2 m × 0.4 m; Siemens PLC, Hailin frequency converter, 7‑inch Weinview touch screen.
Energy Consumption: Total installed power 25 kW; total natural gas consumption 116 m³.

Application Effect

After commissioning, this customized complete dip‑coating equipment realizes stable dip‑coating processing for intermediate main posts, joint main posts and matching mesh panels of the South‑to‑North Water Diversion Project.
The dip‑coating film thickness of workpieces is stably maintained above 0.5 mm.
Uniform RAL6010 grass‑green coating is obtained, with full coating coverage on welds, sharp edges and base plates.
Finished products meet the dual‑layer anti‑corrosion specification: hot‑dip galvanizing + dip‑coating, and have passed on-site acceptance inspection.
The equipment supports mass production and supply of guardrail components, delivering reliable equipment & product support for this national water conservancy project.