bolted silo

1. Type of Bolted Silo Systems

A bolted silo system is a modular storage solution composed of pre-fabricated steel plates that are bolted together on-site to form a sealed cylindrical structure. It is specifically designed for storing cement, fly ash, lime, and other dry bulk materials used in concrete and construction industries. Bolted silos are ideal for long-distance transportation, quick installation, and containerized export, making them one of the most popular silo types in international projects. They offer flexible capacity options, usually ranging from 50 tons to 1,000 tons or more, and are easy to assemble or dismantle.

2. Difference Between Types of Bolted Silos

Bolted silos can be categorized based on material, shape, and application:

• Carbon steel bolted silos: The most common type, suitable for cement and fly ash storage.

• Galvanized bolted silos: Feature corrosion-resistant coatings, ideal for humid or coastal areas.

• Stainless steel bolted silos: Used in food, chemical, and environmental applications requiring high hygiene standards.

• Flat-bottom vs. conical-bottom silos: Flat-bottom silos are used for large-capacity storage, while conical-bottom silos ensure smooth material discharge through gravity.

Each design is optimized according to the storage material, site conditions, and discharge system.

3. Application and Uses of Bolted Silos

Bolted silos are widely used in concrete batching plants, cement terminals, bulk powder storage systems, and dry mix mortar production lines.
Their main applications include:

• Storing cement, fly ash, slag powder, and lime for ready-mix concrete production.

• Acting as intermediate storage silos in port terminals or construction sites.

• Serving as part of bulk handling systems for industrial powders or granulated materials.
  Because of their modular structure, bolted silos are easy to transport in standard containers, making them ideal for international installations and overseas construction projects.

4. Main Parameters and Key Performance Indicators of Bolted Silos

Typical parameters include storage capacity (50–1,000 tons), diameter (2.5–10 m), height (8–25 m), plate thickness (4–10 mm), and discharge angle (40–60°).
Key performance indicators are sealing performance, corrosion resistance, assembly precision, and structural strength.
A well-designed bolted silo should ensure airtight storage, long service life, and easy maintenance. Many systems are equipped with accessories such as dust collectors, pressure relief valves, level sensors, and screw conveyors for fully automatic operation.

5. Price Factors and Typical Price Range of Bolted Silos

The cost of a bolted silo depends on storage capacity, material (carbon, galvanized, or stainless steel), plate thickness, accessories, and transportation requirements.
In the export market, the general price range is USD 5,000–25,000, while large-capacity or specialized silos may cost up to USD 40,000 or more.
Prices also vary based on surface treatment (galvanized or painted), bolt quality, and whether the system includes filters, ladders, or pneumatic feeding systems.

6. Export Advantages of Bolted Silos

As a professional bolted silo manufacturer and exporter from China, we specialize in producing modular, container-friendly silos designed for fast overseas installation and long-term reliability.
Our silos are manufactured from high-quality steel plates, precision laser-cut and pre-drilled, ensuring perfect assembly accuracy.
We offer CE and ISO-certified silos, customizable in diameter, height, and coating options.
Thanks to factory-direct pricing, strong corrosion protection, and 30+ years of manufacturing experience, we provide global customers with durable, easy-to-assemble storage solutions that minimize logistics costs while maintaining top performance.