Process bins

Royal IHC designs and manufactures a wide range of mass flow process bins, either in packaged plants or custom-built.

IHC Robbins recognized the design limitations and failings in Process Bin designs over twenty years ago and embarked on a development program to create an innovative solution situation.


Today, IHC Robbins manufacture a range of Mass Flow process bins which are incorporated in its own packaged plants. Alternatively, these products can be custom designed and built to suit existing plants.

  • Unique design for mass flow
  • Bin profiles prevent stable arches from forming
  • Strategically placed off-take nozzles

All bins are steep-sided and supported on the bin base (not hung). Bins measuring three metres and larger are additionally supported by pairs of braced columns. These are equally-spaced around the top perimeter of the bin. These can support equipment loads located above the bin and also resist any dynamic loading that the bin may be subjected to.
Our standard process bins are available in the following sizes:

  •  0.9m, 1.2m, 1.5m and 2m (square)
  •  3m, 4m and 5m diameter.

The unique bin profiles prevent stable arches from forming within the bin. Consequently hang-ups and surging within are absent and hence they allow mass flow. The overflow launder is located in/on board and partially supported by bridging beams located at the bin top. These can also be used to support a boil box, which can be supplied as an optional extra.

Bin suction and injection water manifolds are horizontal spear designs and rubber- or urethane-lined both inside and out. Dump hatches are provided; however pump-out systems are recommended. Off-take nozzles are strategically positioned around each bin for DP instrumentation.

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