Pneumatic conveying is one of the most widespread technologies in industrial plants: it allows bulk materials\u2014powders, granules, fine aggregates\u2014to be moved inside pipelines using pressurized or vacuum air, in dilute or dense phase. Simple in principle, but far from simple to manage when the materials being conveyed are highly abrasive. It is precisely in these contexts that wear becomes a concrete problem, with bends and pipelines wearing out much faster than expected, leading to unplanned plant shutdowns and maintenance costs that are difficult to control. In our experience at SARO, the sectors where these critical issues emerge most frequently are:<\/span><\/p>\n\n\n\n The materials transported in these plants are often among the most aggressive that exist:<\/span><\/p>\n\n\n\n When these materials travel at high speed within pipes, the combined action of erosion, abrasion, and impact progressively consumes the internal walls. Every change in direction concentrates the stress from the continuous flow of material on the line's components: each bend thus creates a weakness that affects subsequent straight sections, causing thinning and perforations that occur much sooner than expected.<\/span><\/p>\n\n\n\n Adjusting fluid dynamics parameters\u2014switching from a dilute to a dense phase, reducing velocities, and regulating flow rates\u2014helps mitigate the problem, but rarely resolves it entirely. When the combination of material properties, operating conditions, and line geometry is critical, wear persists. For this reason, at SARO, our approach is to intervene precisely where the flow exerts the greatest stress on the walls, with protective devices sized according to the actual conditions of each system\u2014whether it be <\/span>Pneumatic transport<\/span><\/a>I, mechanical or otherwise. <\/span><\/p>\n\n\n\n When managing wear in a pneumatic conveyor line, the first question to ask is: where is the most wear occurring? In most cases, the trouble spots are always concentrated in the same places:<\/span><\/p>\n\n\n\n In our experience, for each of these critical points we have identified three families of anti-wear solutions to rely on:<\/span><\/p>\n\n\n\n In SARO, these technologies are grouped into dedicated application areas\u2014pneumatic conveying and protective coatings\u2014our concrete starting point for building the most suitable solution for each plant.<\/span><\/p>\n\n\n\n Among the materials we use the most for protecting pneumatic transport lines, the <\/span>technical ceramics based on alumina<\/span><\/a> they are the ones we rely on the most. Their high hardness and naturally smooth surface make a concrete difference:<\/span><\/p>\n\n\n\n In SARO we use them in various forms, depending on the point to be protected and the geometry of the line:<\/span><\/p>\n\n\n\n The most widespread application of coatings belongs to the family <\/span>SAUCER CURVE & TUBI<\/span><\/a>a steel structure to protect the inner ceramic lining, designed based on the real operating conditions and needs of the lines. The choice of format, thickness, and laying pattern is adapted to these to ensure the best result in every application. <\/span><\/p>\n\n\n\n Abrasion isn't always the only enemy. In many plants we monitor, impacts, vibrations, and mechanical shocks also occur on the pipe walls \u2014 and in these cases, ceramic alone is not enough. This is where we at SARO resort to hybrid rubber + ceramic solutions, which allow us to combine wear resistance with the ability to absorb stress:<\/span><\/p>\n\n\n\n One of the most concrete examples of this technology in our range are the wear-resistant hoses. <\/span>HEXAGON & TETRAGON HOSE<\/span><\/a>:<\/span><\/p>\n\n\n\n It often happens that we encounter complex internal geometries, or that we need to quickly intervene on a point that has worn down more than expected. In these cases, waiting for the scheduled stop is not always possible. This is where we at SARO resort to filled resins: epoxy-based formulations with high-hardness ceramic fillers, designed for quick and precise intervention:<\/span><\/p>\n\n\n\n In our range, the products we use most often in these contexts are:<\/span><\/p>\n\n\n\n The SARO experience shows that wear protection in pneumatic conveying is more effective when it is targeted: you start with the sections that generate the most problems (bends, direction changes, high-speed zones) and dimension materials and thicknesses based on the actual stresses. This allows us to build a <\/span>Tailored anti-wear strategy for each line<\/span><\/a>. In practice, the protection focuses where the particulate works the hardest on the walls, reducing:<\/span><\/p>\n\n\n\n <\/p>\n\n\n\n <\/p>\n\n\n\n\n
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Types of wear-resistant linings and inserts for pneumatic conveying systems<\/b><\/h2>\n\n\n\n
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Alumina ceramic coatings<\/b><\/h3>\n\n\n\n
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Hybrid rubber + ceramic solutions<\/b>
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Filled resins for repair and protection<\/b><\/h3>\n\n\n\n
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How SARO solutions for internal pipe and elbow linings reduce erosion, plant downtime, and maintenance costs<\/b><\/h2>\n\n\n\n
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Comparison between standard lines and lines with SARO anti-wear solutions<\/b><\/h3>\n\n\n\n
Appearance<\/b><\/td> Without specific protections<\/b><\/td> With SARO wear-resistant solutions (ceramic, rubber + ceramic, reinforced resins)<\/b><\/td><\/tr> Pipe and curve lengths<\/span><\/td> Reduced useful life, frequent replacements <\/span><\/td> Longer service life in critical sections thanks to ceramic coatings and wear-resistant components<\/span><\/td><\/tr> Maintenance frequency<\/span><\/td> Recurring interventions, often unscheduled<\/span><\/td> More predictable maintenance, greater use of scheduled stops<\/span><\/td><\/tr> Business continuity<\/span><\/td> Increased risk of blowouts and unexpected downtime<\/span><\/td> Increased plant availability, reduction of unplanned downtimes<\/span><\/td><\/tr> Handling of abrasive materials<\/span><\/td> Rapid erosion of the most stressed areas <\/span><\/td> Targeted protections sized according to the intensity of wear experienced<\/span><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n How SARO identifies the custom anti-wear solution for pneumatic conveying<\/b><\/h2>\n\n\n\n