what equipment is needed for powder coating?

What equipment is needed for powder coating?

Powder coating relies on a complete set of professional equipment to ensure uniform coating and sufficient curing, which can be divided into four categories based on core functions:

Pre-treatment Equipment:
Includes degreasing tanks, phosphating tanks (or passivation tanks), high-pressure spray devices, and pre-drying ovens. Through degreasing, phosphating for rust prevention, spray rinsing, and drying/dehydration, it removes impurities from the workpiece surface and forms a uniform phosphating film, providing a clean adhesion base for spraying and avoiding coating peeling or blistering.

Powder Spraying Booth Equipment:
Core components consist of the powder spraying booth body, electrostatic spray guns (manual/automatic), powder supply buckets, and powder delivery pipes. The booth provides a closed spraying space to prevent powder diffusion; the electrostatic spray gun adsorbs powder onto workpieces via high-voltage static electricity, and the powder supply system ensures stable powder delivery, adapting to different batch production requirements.

Curing Equipment:
Centered on curing ovens, equipped with hot air circulation systems and temperature control instruments (temperature control accuracy of ±5℃). Common heating types include electric, gas, or fuel heating, with an operating temperature of 180-220℃. It melts, levels, and cures the powder through constant-temperature baking to form a dense coating.

Auxiliary Equipment:
Covers powder recovery systems (cyclone separators + filter cartridge recovery machines), overhead conveying equipment, and workshop dust removal equipment. The recovery system reduces powder loss, the conveying equipment enables continuous workpiece circulation, and the dust removal equipment purifies the workshop air, balancing efficiency and environmental protection.

The entire set of equipment operates synergistically, not only ensuring the stability of coating quality but also adapting to different production capacities and workpiece types, serving as the core support for the powder coating process.