Gentle Conveying Bends
for Fragile Materials

Particle Breakage Mechanisms

Fragile crystals, pellets and granules may break through impact against a wall, impacts between particles or repeated collisions through a long route. The same material can react differently when particle velocity, solids loading, moisture or the number of bends changes. Breakage also needs a measurable definition: sieve distribution, fines mass, appearance or an application-specific quality measure.

Bend Geometry and Velocity

A continuous sweep spreads the change in direction along an arc. A pocket or deflection geometry redirects the solids within a shorter envelope. Neither is inherently gentle under every condition: one may encourage sliding while another introduces concentrated or repeated collisions. Consider upstream conveying conditions and the particle trajectory leaving the elbow.

Product Damage Assessment

Compare a representative inlet sample with an outlet sample collected under the same operating conditions, using a suitable test method. Report throughput, gas flow, pressure, material state and the amount conveyed before sampling. When possible, test more than one operating point.

Candidate Configurations

Pocket, sweep and segmented geometries can be considered at the preliminary stage. Wear-resistant linings should not be added merely for hardness if their joint geometry creates unwanted impacts. Product retention and cleaning may become more important when conveying different fragile recipes through the same line.

Working with PneuBend

We can review a route sketch, assess dimensions and identify engineering questions for a comparative trial. Product-breakage guarantees require agreed measurement conditions and evidence. Elbow selection guide · Start an enquiry.