high-pressure airless sprayer /airless painting machine

The airless sprayer uses a plunger pump to pressurize the paint to obtain a high-pressure paint that is delivered to the spray gun through a high-pressure hose, and discharges pressure through the nozzle to form a spray device that forms a dense coating on the surface of the wall.

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Sprayer comparison

The high-pressure airless sprayer uses a high-pressure piston pump to pressurize the paint to 3000 PSI (210 kg/cm), and the high-pressure paint is delivered to the spray gun through a high-pressure hose, and the pressure is released through the nozzle to form atomization, thereby forming a dense surface on the wall surface. coating. Since the atomization of the coating does not require compressed air, it is called airless spraying.

It has the following advantages:

1. Extremely high coating efficiency. Spraying efficiency of up to 500-1200 square meters per hour, more than 10 times that of traditional drum construction

2. Excellent surface quality. The spray coating is smooth, smooth, dense, free of brush marks, marks, and particles.

3. Extend the service life of the coating. High-pressure airless spraying enables the coating particles to penetrate into the wall space, so that the paint film also forms a mechanical bond on the wall surface, enhancing the adhesion of the paint and prolonging the service life.

4. Easily overcome corners, gaps and uneven brushed parts

5. Save paint. The thickness of the brush is extremely uneven, generally 30-250 microns, and the coating utilization rate is low, while the airless spray can easily obtain a coating with a thickness of 30 microns, which is relatively 20-30% of the coating material.

Air-assisted airless spraying, mixing compressed air at the atomization point of the paint, further refining the paint in the compressed air (0.2-0.5 MPa) to atomize the paint, spraying it onto the surface of the sprayed object to form a paint film, pumping the paint The pressure (about 21 MPa) is sprayed from the nozzle and sprayed onto the surface of the object to be sprayed to form a paint film. The paint is pressurized by pump (about 21 MPa), sprayed from the nozzle, and sprayed onto the surface of the object to form a paint film.

Efficiency 400-600 square meters / hour

3200-4800 square meters / day Hand brush: 60-80 square meters / person * day roller brush: 150-200 square meters / person × day 200 square meters / person × day 3200-4800 square meters / day

400-600 square meters / hour

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Feature

High efficiency The paint efficiency roller brush is slightly higher than the hand brush, but both are low; More efficient than manual

The air is mixed into the atomization point of the paint, and the coating molecules are further refined. The surface of the paint film is not smooth; brush marks and spots. 2. The paint contains air molecules, which cause the paint to scatter and cause serious environmental pollution. The paint molecules contain no air and are less scattered.

The paint is mixed with air after being sprayed out, no scattering phenomenon, and the surface is smoother. 3. It is more difficult to handle the surface with a roller brush. More paint loss 3. Pressure spray on paint, adhesion, strong penetration

The film thickness is uniform and fine. 4. The paint film is thin, and it can be sprayed several times to reach the thickness to be sprayed, which affects the effect. According to different requirements, the nozzle is replaced, the required film thickness is achieved once, and the coating is even and delicate.

The spraying distance is 0.3-2 meters away from the surface of the object, and the paint mist splashes less. It has no effect on the oil sight and the body. The distance from the surface of the object is 0.1-0.15 meters. The paint spray is severely splashed, even if wearing gas masks and protective clothing, the vision of the oiler and The body has a greater impact. It is 0.3-2 meters away from the surface of the object, and the paint mist is less splashed, which has no effect on the oil sight and the body.

Coating transfer rate 85% 90% or more 40% or so 70%

Pollution situation Environmental protection, slight pollution Coatings are not atomized, no pollution High-pressure air atomization, serious pollution, less pollution

Labor intensity, small, small, small

Strong adhesion of paint, generally poor, strong

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Choice of coating

It can be applied from thin to thick coatings. Spraying wood lacquer, metal lacquer, latex paint, putty, fireproof and waterproof coatings are not smooth for fast drying, poor leveling paint and paint film surface. Leaving the roll marks or brush marks can only spray thinner paints. The general paints must be added with thinners to spray them from thin to thick paste.

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Product advantages

1. Paint saves more than 30%. After testing, airless spray paint transfer efficiency is up to 78%. Compared with traditional air spray, the paint save rate is as high as 37%. The initial investment cost of airless spray is higher than traditional air spray. However, the actual return on investment is quite short.

2. The paint fog rebounds low. Because the airless spray can completely atomize the paint without high air pressure, almost no paint mist can be scattered and rebounded during spraying, which can not only reduce the health of the operator. Hazard can reduce pollution to the environment.

3. The production speed is fast, and the film thickness of the airless spray is thicker, so that the actual operation does not need to be repeatedly sprayed, thereby reducing the possibility of overspray, so that the entire spraying process is smooth and uninterrupted, and the work efficiency is higher.