Constant-temperature drying and curing with rapid cooling and shaping ensures durable and high-quality topcoat finish.

The drying and rapid cooling equipment in a paint shop handles vehicle bodies after spraying. It achieves coating curing and shaping through constant-temperature drying followed by rapid forced cooling.This process ensures paint adhesion, hardness, and weather resistance, prevents surface defects, and maintains stable and high-quality coating results.

Functions of Drying and Rapid Cooling Equipment
—— Constant-temperature heating promotes resin crosslinking and solvent evaporation, enabling coating curing and shaping with improved adhesion, hardness, and weather resistance.
—— Precisely controls heating, holding, and cooling stages to avoid over-drying, brittleness, or insufficient curing, ensuring chemical resistance, stone-chip resistance, and corrosion protection.
—— Integrates centralized exhaust gas collection during drying and energy-efficient heat exchange design in rapid cooling, achieving environmental compliance and reduced energy consumption.
—— Maintains stable curing and cooling parameters to ensure consistent coating performance across different batches and vehicle body areas, improving product yield and quality stability.

Structural Characteristics of Drying and Forced-Cooling Equipment
—— Consists of two core sections: the drying zone and the rapid cooling zone, supported by conveying systems, temperature control systems, exhaust treatment systems, and safety protection systems.
—— The drying zone adopts hot-air circulation heating, equipped with gas heating, electric heating, or waste heat recovery units, ensuring high temperature control accuracy.
—— The cooling zone uses fans and heat exchange coils to achieve fast and uniform cooling, preventing coating cracks caused by excessive local temperature differences.
—— The drying section features excellent thermal insulation to reduce heat loss and energy consumption, while the cooling section is well-sealed to prevent dust contamination affecting coating quality.
—— The drying zone is equipped with exhaust gas collection and treatment systems to remove VOCs generated during the drying process, ensuring compliant emissions.

Drawing on over twenty years of continuous R&D, iterative optimization, and engineering practice, the drying chamber features the following outstanding characteristics:

—— Adopts a modular integrated design with a high degree of standardization, significantly shortening manufacturing cycles and enabling rapid on-site assembly and installation.
—— Ensures accurate heat transfer performance with minimal deviation between zone temperature and actual workpiece temperature, providing stable and reliable temperature control for high-quality drying.
—— Features a rational spatial layout with high internal space utilization, effectively reducing long-term operating costs.
—— Compact and reliable overall structure with well-arranged key components, resulting in low failure rates and reduced maintenance workload, improving continuous operation capability.
—— Designed with no protruding structures or dust accumulation dead zones, with smooth surfaces that prevent dust and debris buildup for easy cleaning.
—— Increases circulation airflow appropriately to ensure uniform heating across all parts of the vehicle body (e.g., A/B pillars), achieving consistent and sufficient curing performance.
   

Cooling Equipment
Single-channel chamber structure: ambient air is drawn into the rapid cooling chamber by fans through air inlets and filters.
Air nozzle arrangement: aluminum spinning, direction-adjustable nozzles are arranged according to the vehicle body shape, with an airflow speed of approximately 20 m/s; nozzle distance from the body surface is not less than 300 mm.
Chamber and platform materials: the chamber adopts a self-supporting structure made of galvanized steel sheets, with internal ducts also made of galvanized steel; an independent steel platform is installed above to support the ventilation system.
Cooling air cleanliness: the supplied cooling air achieves a dust removal efficiency of 99% for particles ≥5 μm.
Low-temperature adaptability: under low-temperature conditions, the cooling air can be adjusted to a suitable temperature to prevent overcooling and condensation on workpieces.