A metal-fabrication plant has commissioned a complete overhead conveyor coating and curing line from CoatTech Intelligent Equipment (Guangzhou) CO., LTD.
The project transforms a previously batch-oriented finishing operation into a continuous suspended flow for welded racks, mesh components and tubular frames.
01 Background and challenge
The customer coats high quantities of welded metal frames, mesh/rack components and bar-type parts. Batch-style handling created congestion on the shop floor, uneven hanging density and variable cure/dry performance. The brief was a continuous-flow layout that kept parts suspended, reduced floor occupation and standardized process exposure.
Limited floor space — a high-bay hall with little room for additional batch stations
Mixed part shapes — long bars, welded meshes and rack frames to be processed on one line
Stable hanging pitch — need for smooth curves, transfers and accumulation without product collision
Enclosed process and curing — requirement for a clean coating environment and controlled drying/curing
Less manual movement — goal to cut rework and free operators from repetitive lifting and carrying
02 CoatTech solution
CoatTech supplied a modular overhead conveyor coating line with multi-level steel supports, curved and accumulating track sections, dedicated hanging jigs, enclosed side-wall process chambers and a light-colored insulated tunnel for curing/drying. The layout uses vertical space and directs parts through loading, coating preparation/process zones and curing in a single coordinated flow.
Overhead monorail with curves and accumulation — continuous product movement with built-in buffering between stations
Custom hanging jigs — purpose-made fixtures for bars, mesh and rack parts, exposing all coated surfaces
Enclosed process tunnel — side-wall chambers with access doors for coating and preparation
Insulated curing/drying tunnel — controlled environment with utility and service access for repeatable results
Modular steel structure — column-supported frame integrating rail, chambers and maintenance walkways
Full project scope — layout engineering, fabrication, delivery, installation support and commissioning by CoatTech
03 Results
More organized continuous flow — parts move through the line without blocking assembly or logistics routes
Reduced floor-level congestion — overhead transport frees ground area for forklifts and handling
Improved coating consistency — stable hanging pitch and controlled process exposure reduce variation
Adaptable tooling — one line handles multiple SKUs through interchangeable fixtures
Scalable structure — the modular frame allows future line extensions as output grows
04 Project data
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Item
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Description / Configuration
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Client type
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Metal fabrication / industrial parts manufacturer
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Scope
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Layout engineering, fabrication, delivery, installation support and commissioning
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Conveyor
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Overhead enclosed trolley chain on I-beam, with curves and accumulation
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Support structure
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Steel columns and elevated frame for rail and process zones
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Fixtures
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Custom hanging jigs for welded racks, mesh bases and bar/frame parts
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Process tunnel
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Enclosed side-wall coating/preparation chamber with access doors
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Curing / drying
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Insulated tunnel with access doors and utility service openings
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Deliverables
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Continuous suspended flow from loading to cured finished parts
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Frequently Asked Questions
Q: What does a coating line case study show? A: It documents a real client challenge, the CoatTech solution and the measurable results after installation.
Q: Which parts were processed in this project? A: Welded racks, mesh bases, tubular frames, brackets and other fabricated metal components.
Q: Can the line handle long and bulky products? A: Yes — the elevated rail and process tunnel accommodate long parts, while curves and accumulation save floor space.
Q: Is the conveyor speed adjustable? A: The trolley chain runs at an adjustable pace so dwell time in each process stage matches the coating and output required.
Q: Does CoatTech support installation? A: Yes — CoatTech handles layout engineering, fabrication, delivery, installation support and commissioning.
About CoatTech
CoatTech Intelligent Equipment (Guangzhou) CO., LTD designs, manufactures and installs spray booths, paint-booth man lifts, pre stations, overhead and floor-rail conveyor coating lines, roller coating lines, smart painting lines, big-size and mobile container spray booths, retractable tents, paint mixing rooms, filtering equipment and filter consumables.
Every project is handled from layout and engineering through fabrication, delivery, installation and after-sales service.
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Overhead Conveyor Coating Line Installation | CoatTech Images
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