A hopper section is a funnel-shaped component in bin structures that controls material flow from storage to processing equipment.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Hopper Angle | 45-70 degrees | |
| Capacity Range | 0.5-100 m³ | |
| Surface Finish | Ra 0.8-3.2 μm | |
| Wall Thickness | 3-20 mm | |
| Outlet Diameter | 150-1000 mm | |
| Pressure Rating | Atmospheric to 0.5 bar | |
| Operating Temperature | -40°C to 200°C |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
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The minimum hopper angle depends on the material's angle of repose, typically requiring 5-10 degrees above this value. For most industrial materials, angles between 55-65 degrees ensure reliable gravity flow.
Prevent bridging by ensuring proper hopper geometry (steep enough angles), smooth interior surfaces, appropriate outlet sizing, and implementing flow aids like vibrators or air fluidization systems when handling cohesive materials.
Food-grade applications require 304 or 316L stainless steel with sanitary finishes, or FDA-approved plastics like polyethylene/polypropylene. All surfaces must meet sanitary standards with radiused corners and easy-clean designs.
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