FAQ

Typical Capacity Ranges:

• Small: 500-1,000 tonnes (diameter 8-12m)
• Medium: 1,000-3,000 tonnes (diameter 12-20m)
• Large: 3,000-6,000 tonnes (diameter 20-30m)
• Very Large: 6,000-10,000+ tonnes (diameter 30m+)

Factors Affecting Capacity:

• Bin diameter and height ratio
• Grain bulk density (varies by crop type)
• Angle of repose for stored grain
• Local building code height restrictions
• Foundation soil bearing capacity

Choose Hopper-Bottom When:

• Full gravity discharge is required - complete emptying without mechanical sweep systems
• Frequent grain turnover - seed operations, high-value crops, or processing facilities
• Smaller storage volumes - typically under 500 tonnes per bin
• Multiple varieties storage - easy cleaning between different grains

Choose Flat-Bottom When:

• Maximum capacity is priority - economies of scale for large volumes
• Long-term storage - strategic grain reserves, seasonal carryover
• Lower cost per tonne - reduced steel weight per tonne stored

Small Farm Series (10-100 tonnes):

• Diameter: 3.0-6.0m | Height: 4.5-9.0m

Commercial Series (100-500 tonnes):

• Diameter: 6.0-10.0m | Height: 9.0-15.0m

Industrial Series (500-2,000 tonnes):

• Diameter: 10.0-18.0m | Height: 12.0-22.0m

Large Terminal Series (2,000-10,000+ tonnes):

• Diameter: 18.0-40.0m | Height: 18.0-35.0m

Galvanized Steel (Most Common):

• Zinc coating: Z275 to Z600 (275-600 g/m² zinc coating)
• Base steel: S350GD or equivalent structural grade
• Thickness range: 1.0mm to 4.0mm
• Service life: 25-40+ years

Protective Coatings:

• Exterior: Polyurethane or acrylic topcoats
• Interior: Food-grade epoxy coatings

Airflow Requirements:

• Cooling aeration: 0.1-0.2 CFM/bushel
• Drying aeration: 0.5-1.0 CFM/bushel
• Air pressure: 2,000-5,000 Pa

Key Benefits:

• Temperature control: Prevents hot spots
• Quality preservation: Maintains germination and grade
• Storage extension: Allows longer storage periods

Batch Dryers: 5-50 tonnes per batch for seed and specialty grains

Continuous Flow Dryers: 10-100+ tonnes per hour for commercial operations

Tower Dryers: TD-series (100-500 tonnes/day) with vertical design

Mobile Dryers: 10-30 tonnes per hour, transportable

Factors Affecting Lifespan:

• Coating quality: Hot-dip galvanizing (Z275+) provides optimal protection
• Environment: Coastal locations require additional protection
• Maintenance: Regular inspection and coating repair extends life

Expansion Methods:

• Height extension: Adding ring courses
• Additional bins: Adding adjacent bins

Important: Original design must accommodate additional height; engineering review required.

• Roof vents: Prevent pressure buildup
• Access doors: Ground-level and roof access
• Ladders: Caged ladders with rest platforms
• Lockout/tagout: Equipment isolation capability

Optional: Level indicators, temperature monitoring, gas detection, lightning protection

Hot-Dip Galvanizing: Z275-Z600 zinc coating, 25-50 years service life

Supplementary Coatings: Paint systems, epoxy coatings

Maintenance: Annual inspection and prompt repair