Today we will talk about the first stage of the dry tumbling process: the grinding.
In the heart of the most beautiful mountains in the world: the Dolomites. Since 1965 we have been developing and producing specific polishing processes for high-level surface treatment. In 2000 we moved to Domegge di Cadore, in the Belluno Dolomites. It’s right here, in our headquarter, that all our products come to light: from the first […]
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The tumbling process is used on an industrial scale for the removal of surface flaws caused by previous working processes and for the following polishing of the different materials surfaces.
The tumbling and the vibrofinishing processes are normally used for the polishing of plastic, metal alloys, precious metals and natural materials too.
In the context of the tumbling process of buttons, fashion accessories and costume jewelry in plastic materials (polyester, PMMA, cellulose acetate, plastic difined « bio »), resins and natural materials (dark or light horn, corozo), the optimal solution to guarantee a high quality finishing is to make « dry » the first step too, that is the grinding.
In the context of the tumbling process of cellulose acetate and injected plastic eyewear, the first step, defined grinding, has a basic importance in order to guarantee a perfect finishing of frames, temples and earpieces. It is indeed necessary to remove scratches derived from the previous treatments, like milling or mould deburring, avoiding to damage the surface and ensuring meanwhile a more or less marked rounding of the profile based on the several models.
Pumice abrasive without crystalline silica – PAI Cristal – Pai Classic Abrasive powdere – pumice The diffusion of Covid-19 has drown even more attention (if there ever was any need to) to the importance of respecting the regulations to safeguard the workers health. PAI Cristal has always been careful to supply products that guarantee the […]
pai cristal develops abrasive paste with antibacterial Pai Cristal takes care of you. Pai Cristal presents a big news: PAI CLASSIC abrasive pastes for tumbling process will be equipped with a green stamp PAI CARE. Pai Cristal R&D department has drawn up new products for grinding, smoothing and shining of cellulose acetate: these abrasive pastes […]