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| PALFINGER sets new standards in its business by implementing a coating technolgy which is well esstablished and prooved in the automotive industry. |
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| The complex surface coating process is carried out in 16 steps. Before the actual paintwork is applied, preliminary treatment steps already ensure 90% of the final coating quality. |
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Sandblasting
By blasting the steel components with wire pellets, an extremely aggressive blasting medium, layers of scale and impurieties are completely removed. |
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Rinsing - Activating - Phosphating
Subsequent to the blasting process the components are rinsed twice and evenly activated. This is followed by zinc phasphating, a galvanising method similar to that used in the automotive industry. After to more rinses the surfaces are then passivated and rinsed once again with ultra-clean water (<20 μS/cm). |
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Electrostatic coating
Now the electrostatic KTL-process starts. The components completely immerse in the paint and becomes the negative pole, while the immersion bath is the positively charged by means of anodes. Thus an even coating thickness and all over coating, even in cavities (cavity sealing), can be ensured. Furthermore the coating thickness can be adjusted in the range of ± 1 – 2 μ. Excess paint is washed off in two more steps in an ultra-filtration bath. |
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Drying - KTL
Later on the paint is burned in for about 1 ½ hours at temperatures up to 115°C. Compared to 160°C in the automotive industry these are relatively low temperatures, which means that also temperature-sensitive components can be coated. |
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Fully automatic top coating
On a second level in an additional working step water soluble, environmentally friendly two-component-paint is applied by means of a spry robot. The robot unit is programmed to handle every single component by recognising size and shape stored on an assigned chip. |
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Drying - top coating
Before finally uncoupled, the components run through a last draying phase. |
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