Powder spraying robot

Development Trends of JERRYS Intelligent Robot Powder Coating Equipment

JERRYS ROBOT

II. Energy Advantages of Powder Coating:

(1) Excellent Environmental Protection

The pollution of "three wastes" (waste gas, wastewater, and solid waste) has become a global issue. Among them, the air pollution caused by solvent-based coating has attracted widespread attention from various countries, and the restrictions on VOC emissions from automotive coatings are becoming increasingly strict.

Driven by strict environmental regulations, powder coatings, like other green coatings, have been rapidly promoted and used worldwide. Traditional liquid coating processes can only reduce VOC emissions by increasing energy consumption.

However, automotive body powder coating achieves zero VOC emissions, produces less and non-toxic waste, and does not require exhaust gas combustion chambers or other methods to treat the tail gas generated during the curing process.

With the development of powder coating technology, the application fields of powder coatings will continue to expand, and their proportion in industrial coatings will also increase. Therefore, powder coatings will be one of the coating varieties with the fastest production growth rate.

(2) Simple Process, Small Floor Area, and Recyclable Coatings

Generally, the space required for applying powder coatings is smaller than that for traditional liquid coatings, reducing the floor area of the spray booth.

Since there are no coating defects such as sagging and bubbles that may occur during traditional liquid coating spraying, powder coating spraying operations are easier to perform.

At the same time, due to the use of electrostatic spraying, the powder coating can achieve a thickness of 40~50μm in one spraying, improving coating efficiency. Moreover, powder coatings are recyclable, and powder coating equipment is easy to maintain and clean, reducing downtime and required labor.

(3) Energy Saving

Powder coating requires less energy than liquid coating systems. The powder coating spray booth can maintain air closed-loop circulation, greatly reducing its operating energy consumption.

Although the curing temperature of powder coating is relatively high, the large amount of energy saved by the spray booth offsets this. According to estimates from some OEM enterprises, the energy consumption of a powder coating spray booth is 80% lower than that of a liquid coating spray booth of the same scale.

Another main reason for energy saving is that there is no need for exhaust gas treatment. It is estimated that the electricity and natural gas required for powder coating are only 1/3 to 1/2 of those for traditional liquid coating.

In 2005, Jeffery Johnson from Haden Company compared the coating equipment and production costs of automotive body primers using powder coatings, water-based coatings, and solvent-based coating systems.

It is estimated that compared with solvent-based coating, powder coating can save 2.5 euros per vehicle; compared with water-based coating, it can save 6.30 euros. This indicates that the production cost of powder coating is 38% lower than that of water-based coating and 10% lower than that of solvent-based coating.

(4) Improved Coating Quality

Powder coatings have excellent properties, providing high-quality protection performance, and can replace one or more layers of coatings in traditional liquid coating systems.

For example, liquid coatings (base coat + clear coat) applied to wheels and many exterior body parts have been replaced by powder coatings.

In addition, powder coating can achieve appearance quality that liquid coating cannot obtain. Using powder coating allows manufacturers to produce unique and hard-to-replicate colors and effects, which helps to innovate the design of the entire vehicle.

(5) Improved Operator Working Environment

Workers are satisfied with using powder coatings. This system is odorless, greatly reducing the demand for protective equipment. The spraying equipment is easy to use, clean, and maintain, and this easy operation can reduce the training time for operators.