Sespel has manufactured and delivered four aluminium silos, each with a capacity of 90 m³. The enquiry was received in October 2024, and the equipment configuration was agreed in February 2025. At the customer’s request, the silos were fitted with load-cell weighing systems, with embedded fittings incorporated into the foundations. In November 2025, the customer confirmed installation by sending photographs.

Sespel has completed the manufacture and delivery of four aluminium silos, each with a capacity of 90 m³. The enquiry was received on 18 October 2024, and the final configuration was agreed in February 2025. At the customer’s request, the silos were equipped with load-cell weighing systems, and the foundations included embedded fittings for the sensors.

Project milestones

• 18 October 2024 — enquiry received for four aluminium silos
• February 2025 — configuration agreed, including load-cell weighing systems
• 26 September 2025 — customer collected the completed order from the production site
• 19 November 2025 — customer confirmed installation by sending photographs

Factory product designations

• BAF3000‑90.150.90.06.0001СБ — Silo No. 1
• BAF3000‑90.150.90.06.0002СБ — Silo No. 2
• BAF3000‑90.150.90.06.0003СБ — Silo No. 3
• BAF3000‑90.150.90.06.0004СБ — Silo No. 4

Design features

The silos are monolithic structures manufactured using friction stir welding (FSW). The shell is made from extruded aluminium profiles, with the weld face on the inside and the weld root on the outside. The closing longitudinal seam and circumferential seams are produced using arc welding or FSW. The rolled sheet surface receives no additional machining.

90 m³ silo specifications

• Nominal gross volume — 90 m³
• Nominal net volume — 86 m³
• Silo diameter — 3,000 mm
• Cylindrical fill height — 12,404 mm
• Protective skirt height — 2,628 mm
• Silo height — 15,152 mm
• Clearance between floor and cone — 994 mm
• Hopper included angle — 90°
• Outlet flange diameter — 155 mm
• Conical roof slope — 15°
• Reinforced silo cone, plate thickness — 6–8 mm

Equipment supplied

• Three-flight aluminium ladders with fall protection, attached to the silos — 4 units
• Ladder locking devices with self-closing bolts — 4 units
• Intermediate ladder platforms with fall protection and guard grilles — 8 units
• Roof-edge safety railings, 1,200 mm high — 4 units
• Silo skirt doors with handle and lock sets, rain-protected ventilation openings and gas-spring stays — 4 units
• Load-cell weighing systems with embedded foundation fittings

The silos were manufactured to the customer’s technical requirements and passed acceptance tests at Sespel’s production site. FSW ensures a monolithic structure, leak-tight seams and no internal stresses, which is particularly important for long-term operation of storage vessels. In November 2025, the customer confirmed successful installation and commissioning.