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Metal Mellaring Ring - a Random Packing with Homogeneous Structure

Metal mellaring ring possess good symmetry in geometry morphology, homogeneous structure and high void volume. It shaping like a wreath or lantern, makes alternate arrangements for eight-arc rings and four-arc rings. At the same time, each segment of the ring folds inward along the radial direction, which makes continuous surface and uniform spatial distribution. Compared with metal pall ring, metal mellaring ring has higher flux (15 - 30%) and lower pressure drop (20 - 30%).

There is a metal mellaring ring on the green background.
MMR-01: Metal mellaring ring is shaping like a wreath or lantern.
Two metal mellaring rings are in both large size and small size.
MMR-02: Metal mellaring ring possess good symmetry in geometry morphology.
Specification - metal mellaring ring
Model Nominal diameter (mm) Diameter × Height × Thickness
D × H × δ (mm)
Bulk number (m-3) Specific surface area (m2/m3) Void volume (m3/m3) Dry packing factor (m-1)
MMRS-01 Φ25 25 × 25 × 0.6 59200 250 0.93 310
MMRS-02 Φ38 38 × 38 × 0.6 14000 138 0.95 163
MMRS-03 Φ50 50 × 50 × 0.8 7000 121 0.95 144
MMRS-04 Φ76 76 × 76 × 1.0 1950 75 0.95 86
Materials: quality stainless steel, carbon steel, aluminum alloy.


  • Large open area of annular wall.
  • Large flux.
  • Small resistance.
  • High mass transfer efficiency.
  • Homogeneous structure.
  • High void volume.


  • Metal mellaring ring is suitable for the media which are easy to decompose, aggregate or carbonize.
  • Metal mellaring ring is widely applied in purification tower, washing tower, vacuum distillation tower and so on.


Packed in carton boxes.

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Boegger Industech Limited
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