30,000T National-Level Grain Reserve
Coastal Salt-Spray Environment · Ningbo, China · Delivered 2022
AmGrainTech delivered a 30,000T national-level grain reserve in Ningbo, China in 2022: a large-diameter bolted steel flat-bottom silo group with 500 TPH loading/unloading and marine-grade anti-corrosion coating for the coastal salt-spray environment. Rotation turnaround time dropped by over 40%.
Project Gallery
Technology: Reserve-Grade Scale Meets Salt-Spray Coast
A national reserve by the sea must satisfy two masters at once: national standards for capacity, mechanization and intelligent management — and an aggressive coastal corrosion environment. The design handles both:
Large-Diameter Bolted Flat-Bottom Silos
Multiple large-diameter flat-bottom silos reach 30,000 t total, greatly improving space utilization and mechanized operation efficiency versus the aging facilities they replaced.
Marine-Grade Anti-Corrosion Coating
All steel silos use marine-grade anti-corrosion coating specified for the coastal high salt-spray environment — protecting structural integrity across long service life.
500 TPH + Intelligent Temperature Control
A 500 TPH loading/unloading system (bucket elevators + belt conveyors) with intelligent ventilation and temperature control enables remote monitoring and automatic alerts, cutting manual inspection costs.
Project Background, Challenge & Solution
Client Background: The client is a national-level grain reserve directly subordinate depot in East China, located in the port city of Ningbo, Zhejiang. It undertakes regional strategic grain reserve and rotation tasks, with very high requirements for the scale, safety, and automation level of storage facilities.
Challenge: The original storage facilities were aging and insufficient in capacity. The new facilities needed to meet national reserve depot standards — large capacity, high mechanization, intelligent temperature-control management — while adapting to the high salt-spray corrosive environment of coastal areas.
Solution: AmGrainTech provided a silo group of multiple large-diameter bolted steel flat-bottom silos (30,000 t total), with a 500 TPH loading/unloading system (bucket elevators + belt conveyors), intelligent ventilation and temperature control, multi-function cleaning and screening equipment, and marine-grade anti-corrosion coating on all steel silos.
Result: The project passed acceptance in 2022 and entered operation, becoming a benchmark for modernized national grain reserves in East China. The large-diameter flat-bottom design greatly improved space utilization and mechanized efficiency; 500 TPH turnover shortened single rotation operations by over 40%; intelligent temperature control enabled remote monitoring and automatic alerts, reducing manual inspection costs.
Project Outcomes
Delivery & Commissioning Timeline
Silo group engineered to national reserve depot standards
Large-diameter silos built with marine-grade coating (ISO 9001)
Silo group, 500 TPH handling and screening systems erected
Passed acceptance 2022; East China benchmark in service
What Coastal Salt Spray Does to a Silo
- Salt spray is a structural threat — chlorides attack coatings and steel far faster inland; marine-grade coating is specified, not optional.
- Rotation is the real workload — reserves cycle grain regularly; 500 TPH handling is what turns rotation from a bottleneck into a routine.
- Intelligent monitoring replaces walking the bins — remote temperature monitoring with automatic alerts cuts manual inspection cost and catches problems earlier.
- Large diameter earns its footprint — fewer, bigger silos improve space utilization and mechanized efficiency at reserve scale.
Client Evidence
“Three coastal years of high humidity and salt spray, and the protective coating still looks new. Faster turnaround has cut our rotation costs by roughly 40%.”
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