Spraying Technologies

Piston pumps transport the material by means of a stroke movement in the piston. This creates high suction performance, making them ideal for highly viscous materials. There is little overspray created because no air is used in this atomisation process. Ensures fast application speed and high transfer efficiency.

Some piston pumps are operated pneumatically (Air-Assisted). This provides protection against explosion and makes them suitable for use in workshops. Our hydraulic piston pumps offer even greater performance and can also be operated using petrol.

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The material is transported by means of a stroke movement in the diaphragm. Products featuring this technology are robust and yet easy to handle on a construction site or workshop.

Pneumatic double diaphragm pumps are ideal for woodworking applications and produce top surface quality. Electrically operated diaphragm pumps can be used as both Airless and AirCoat spraypacks.

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The material is transported by means of a stroke movement of two diaphragms working in opposite directions. This creates a very low-pulse material flow.

This also allows you to work with materials which are particularly sensitive to shearing and moisture, and with premixed 2K materials. Our Wagner Double diaphragm pumps are explosion-proof and operated by compressed air which means that they can be used in workshops.

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Low-pressure spraying (HVLP / XVLP) uses a high volume of air and low air pressure (up to 0.7 bar). The atomised air generated in the turbo blower flows through an air hose to the paint tank on the spray gun, where it then builds up pressure. This transports the coating material along the uptake pipe to the nozzle and atomises it with the remaining air.

XVLP technology (EXtra Volume Low Pressure) is based on the HVLP technology. The XVLP series has greater atomisation power due to 60% higher air volume in comparison with other low-pressure devices. This allows for a far wider range of materials to be sprayed with this method.

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Spiral pumps transport the material by means of extrusion. Two components, the rotor and the stator, are used for this. The rotor rotates and thus transports the material gently to the cavities of the stator.

This technology can be used to transport extremely heavy materials, for example, for machine application of plaster, where the material is transported along the hose to the spraying lance using a spiral pump. Adding compressed air to the spray lance atomises the heavy material and applies it evenly.

Unlike the case of air atomisation, airless atomisation technology atomises the material using the pressure of the material alone, i.e. without the use of any air. An electric, pneumatic or petrol-driven pump pressurises the material and forces a defined quantity of material through a nozzle aperture at up to 25 MPa. During this process, the material is diffused into a finely atomised spray jet.

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In the AirCoat process (airless + air), the material is forced through the nozzle at a relatively low pressure (3 – 12 MPa) by a piston or diaphragm pump, and compressed air (0.05 – 0.25 MPa) is used to assist in the atomisation process. This is possible thanks to the central air supply (air cap) that is located directly at the nozzle aperture and surrounds the sprayed material like an envelope.

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Conventional Air Spray produces a smooth finish, and can be used on many surfaces. It offers the best control of spray pattern and the best degree of atomization. This system produces the finest atomization and, therefore, the finest finishes. Ideal in many areas, finishes for the wood industry, commercial vehicles and the general carpentry manufacturing. However, this method produces a great deal of overspray.

Low-pressure spraying uses a high volume of air and low air pressure (up to 0.07 bar). With the FineSpray method, the material is completely atomised at the outlet of the nozzle. The low pressure of the material with the high volume of air ensures slightly larger material droplets and therefore less spray mist.

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