Automatic Powder Coating Line for Long Metal Shelves Customized Powder Coating System with 13.5-Meter Hangers This automatic powder coating production line is specially engineered for long metal shelves and similar large fabricated components. The system is equipped with 13.5-meter-long hangers, allowing oversized shelf products to be transported safely and efficiently throughout the coating process. The powder spray booth is manufactured from durable PP (polypropylene)