Corrugated Silo/

Hopper Silo

Item Hopper Silo
Diameter 2m-7.5m
Cylindrical Height 4m-19m
Roof Height 1.76m-4.53m
Capacity 7.2m3 (204 bu)-692m3 (19,637 bu)
Wall Type Corrugated Steel
Material Hot-dip Galvanized Steel Sheet
Bottom Type Cone

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Hopper Silo

A corrugated steel hopper bottom silo is an advanced grain storage equipment, it is useful for storing various grains, and seeds, including:

  • Barley
  • Beans
  • Cereal
  • Corn
  • Granules
  • Maize
  • Meal
  • Paddy
  • Poly
  • Rice
  • Sorghum
  • Sunflower seeds
  • Soy
  • Wheat


The hopper bottom’s inclination angle is between 35 to 60 degrees, and the grain can flow out of the conical silo on its own under gravity, without residue.

The 60-degree cone bottom grain bin is suitable for storing larger viscosity particles & powdery materials.


As the hopper bottom grain bin doesn’t need a sweep auger for material unloading, which not only simplifies the assembly work but also reduces the total cost.


In addition, the hopper silo’s following features are also attractive:

  • Short construction period;
  • Optional temperature measurement, ventilation system;
  • Mechanization & modernization management;
  • Simple disassembly, convenient maintenance, reliable quality;
  • Long service life, up to about 30 years.

Generally speaking, hopper bottom silos are mainly used for temporary storage, because they have a smaller capacity than flat bottom silos, with structural steel supports, it is convenient for unloading the stored materials.


Similar to the flat bottom silos, the hopper bottom bins are assembled by the corrugated plates, by fixing these plates to the structural steel frame with bolts & nuts.


Some grain hopper bins are welded structures, such bins have a longer service life, the structure is unlikely to interfere with the material flow.

If you store the grain in the hopper bottom bins according to the design, you can enjoy simple metering & unloading through the cone bottom.

In order to control the flow rate correctly, we SiroSilo design the metal silos with a cone bottom according to stored materials, so as to measure their storage capacity.


To prevent the hopper bottom metal grain silo’s corrosion, we can galvanize or paint it.


Based on the silo capacity, the hopper steel grain silo has 3 types:

  • Small (5-20 tons)

Mainly used for the ingredient, feed storage, etc.

  • Medium (20-500 tons)

Mainly used in processing plants for transit.

  • Large (500-1500 tons)

According to actual needs, it is used to store seeds.


The hopper silo structure is generally the same, its main components are:

  • Roof
  • Body/Cylinder
  • Compression Ring
  • Structural Support
  • Cone
  • Wind Rings
  • Roof Stairs
  • Roof Inspection Hole
  • Entrance Door
  • Bolts & Nuts
  • Joints Seal
  • ……

As the supplier of COFCO, the largest grain company in China, SiroSilo is a professional hopper silo manufacturer worthy of your trust.

If you want to know more about our grain hopper bins, please send us an inquiry on this website, or you can add our WhatsApp ID +8617312124727, we can lively broadcast our factory to you via video call.

Hopper Silo Ultimate FAQ Guide

Galvanized Silo

Galvanized silo is actually a steel grain silo, it is assembled by hot-dip galvanized stainless steel sheets.

Hot-dip galvanized steel sheet has ideal corrosion resistance, it is easy for forming & coating, its cost is low, its appearance is attractive, and it is an ideal material for assembling steel grain silos.

The hot-dip galvanized layer’s electrochemical potential is more negative, and it has excellent electrochemical protection.

As the coating is thick & dense, the coating & steel substrate have a strong bonding force, and its durability is good.

The service life of the 600g/m2 hot-dip galvanized steel can reach more than 30 years.


The hot-dip galvanized steel layer does not require maintenance during use, the hot-dip galvanizing process is simple, and such process has strong adaptability to the steel shape & size.

In addition to the steel strips, the hot-dip galvanizing process is also widely used for steel pipes, steel wires, and structural parts, its productivity is high.

Compared with other protective coatings economically, the galvanized layer has strong competitiveness, especially for long-term parts, the hot-dip galvanized layer’s cost is much lower compared to paint coating.

What is Hopper in Silo?

According to the bottom shape, the metal grain silo can be divided into a flat bottom silo & hopper bottom silo.

The hopper in a silo is actually the cone at the grain hopper bins’ bottom.

Because of their inclination, these grain hopper bins can discharge the stored grains without clearing equipment.

The following picture shows the hopper:


Hopper Silo Manufacturers/Companies

There are hopper silo manufacturers all over the world.

Relatively speaking, the famous hopper silo companies are in the photo below.


As the supplier of COFCO, SiroSilo Industrial is also a professional hopper bottom silo manufacturer worthy of your trust.

Welcome you to get a quote from us for comparison, or you can add our WhatsApp ID +8617312124727 for a video call, and we can lively broadcast our factory to you.

Hopper Bottom Feed Bins

Because the farms use fodder to feed poultry & livestock every day, hopper bottom feed bins are more popular among farmers.

The hopper bottom feed bins are particularly convenient for unloading, it does not require unloading equipment.

It is economical.

Hopper Bottom Grain Bins

Generally speaking, farmers or small grain processing plants purchase hopper bottom grain bins.

They can use the hopper bottom grain bins as a transit warehouse, storing grain & seeds for a short period of time.


When the storage period is up, the unloading is also very convenient.

Because the silo bottom is cone-shaped, the bottom has a certain height above the ground, and the grain & seeds in the silo can flow out under gravity.

Hopper Bottom Grain Bins Prices

In the Chinese market, 3-30 tons of hopper bottom grain bin is RMB3,809.52 to RMB7,936.50/set, which is equal to USD$605.00-USD$1,260.00/set.


How to Build a Hopper Bottom Grain Bin

Building a hopper bottom grain bin, usually include the following basic steps:

  • At the center of the silo foundation, erect a suitable scaffold support, and hoist the top roof frame to the scaffold support;
  • Install the side cylindrical body sheets, top reinforced stiffeners of the 1st & 2nd rings;
  • Install silo roof components;
  • Install the side cylindrical body sheets & stiffeners of the remaining rings;
  • Lift the hopper silo’s cylindrical body to the foundation’s side;
  • Build structural support for cylindrical body;
  • Lift the hopper silo’s cylindrical body onto the structural support;
  • Install cones with slopes under the cylindrical body.

Welcome you to send us an inquiry on this site, we can send detailed specs & quotation sheets to you for comparison.



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