Double-layer aviation rubber strips corrugated plates connected by bolts zero rainwater leakage and zero fumigation gas escape

Company Profile

· Founded in 1998, Zhengzhou Wangu Machinery Co., Ltd. is a National High-Tech Enterprise specializing in R&D and manufacturing of grain drying, storage, conveying, cleaning and processing equipment for over 26 years.

· Headquartered at No.113 Anyang Road, Shangjie District, Zhengzhou City, Henan Province, China, with over 50,000 m2 of modern production facilities, R&D center and comprehensive testing systems.

· Core product lines include: Steel Grain Silos (cone bottom + flat bottom), Recirculating Batch Dryer (5HH), Continuous Grain Dryer Tower (WGH), Rotary Drum Dryer (WGT), Steam Tube Rotary Dryer (GHG), Hot Air Furnace, Rice Mill, Flour Mill, and various conveying equipment — 19 product categories in total.

· Certified with ISO 9001 Quality Management System and CE marking. Products exported to 50+ countries across Southeast Asia, Africa, and South Asia, with 3,000+ systems delivered worldwide.

· Wangu holds import/export qualifications with annual export value exceeding USD 20 million. Overseas service centers in Vietnam and Nigeria provide one-stop solutions from design to installation and after-sales support.

Product Overview

   Wangu Steel Grain Silo is a vertical steel storage system designed for safe grain storage, manufactured with hot-dip galvanized corrugated steel sheet and bolted assembly structure. Two series: Cone Bottom Silo (dia. 4.6-12.8m, 8 diameter options, 20-2715t capacity) and Flat Bottom Silo (dia. 10-22m, 800-10000t capacity). From small farm bins to national reserve silos — one series covers all.

   Core Technology: Hot-Dip Galvanized + Corrugated Sheet + Bolted Assembly. Wall panels are roll-formed into corrugated sheets for structural strength and wind resistance. Hot-dip galvanized layer >=350g/m2 ensures 25+ year anti-corrosion life — far exceeding the 3-5 year life of ordinary carbon steel silos. Panels are connected by high-strength bolts with spherical waterproof washers and aviation-grade rubber seals — zero rain leakage, zero fumigation gas leak. Full bolted assembly means the silo is relocatable — disassemble, move, and reassemble at a new site.

   Why Wangu silo? The core  points of grain storage are "heating/spoilage" and "rain leakage" — solve these two and grain stays safe for 6-12 months. Wangu silos use hot-dip galvanizing for anti-corrosion, aviation-grade sealing against rain/moisture, digital temperature monitoring against heating/spoilage, and a 25-degree sloped roof for self-draining snow and rain. Four layers of protection keep grain quality from degrading. Meanwhile, the cost is only 35-50% of steel structure or concrete silos, with a 3-month construction period — the most cost-effective grain storage solution.

Cone Bottom vs Flat Bottom vs Concrete Silo — 3 Storage Methods Compared

Suitable Customer Types:
- Family Farms / Large-Scale Growers — Cone silo dia.4.6-5.5, 20-200t. Self-store, sell when price is right.
- Agricultural Cooperatives / Drying Service — Cone silo dia.6.4-8.3, 200-700t. Buy, dry, store in one stop.
- Regional Depots / Grain Processing Plants — Cone dia.9.1-12.8 or Flat, 700-5000t. Transit storage.
- National / Provincial Reserve — Flat bottom dia.10-22, 5000-10000t. Strategic long-term storage.
- Port Transit Depots — Large flat bottom silos for import/export grain transit.
- Feed / Flour Processing Plants — Cone silo connected to production line. Raw material storage + auto feeding.
- Developing Country Food Security Projects — Low cost, fast construction, relocatable. Ideal for developing nations.