AQUASTEELSmart-Silo
Smart-Silo · Proudly South African · Since 1992

Your harvest.
Your silo.
Your price.

On-farm grain storage, engineered and built in Pretoria — so you can hold your own crop past the harvest glut and sell when the market pays what it's worth.

CAPACITY 50 – 2 750 t SHELL G550 ZINCALUME® ERECTED by local partners
Smart-Silo · elevation corrugated · flat-bottom Ø 5.2 – 15.0 m 2 – 20 rings 30° CONE · CLEAR-SPAN
The reason to store

The harvest trap

Every harvest, the price falls — because every farmer sells at once. Without your own storage, you sell into that glut. Then you watch the price climb back up after your grain is already gone.

WITHOUT STORAGE

You are a price-taker

Grain moves the day it's cut — straight into the harvest-season low.

Transport is scarce and expensive when everyone needs it at once.

Storage certificates, handling fees and grading happen on someone else's terms.

The margin between your farm gate and the shelf goes to the middleman.

WITH A SMART-SILO

You set the terms

Hold your crop cool and dry, and sell weeks or months later — into a stronger market.

Move grain when transport is available and rates are fair.

Grade, bag and brand under your own name, on your own yard.

Keep seed and feed on hand — and the margin on your side of the gate.

Storage is the difference between taking the price and setting it.

One silo. Four kinds of freedom.

Built to put you back in control

01 / BUFFER

Hold the harvest

On-farm buffer storage breaks the harvest-time price trap. Keep your grain until the market comes to you.

02 / BRAND

Your own name

Store, grade and bag on your own yard. Sell a branded product, not an anonymous load off the back of a truck.

03 / DIRECT

Skip the queue

Sell straight to millers, feedlots and buyers. Fewer hands between your harvest and your bank account.

04 / STAND ALONE

Feed & seed security

Keep next season's seed and your own feed on hand. Independence you can measure in tonnes.

The engineering

Specified like infrastructure

The same corrugated Smart-Silo architecture we build for commercial storage — engineered to international grain-load standards, and now scaling to twenty rings and 2 750 tonnes in a single silo. One system, from farm bin to commercial bank.

ShellCorrugated G550 ZINCALUME® steel — high tensile, factory pre-coated, bolted rings
Plate build-up0.75–1.20 mm sheets, up to 3 laminations, 3.60 mm max per ring — heaviest at the base
StructureCorrugated shell carries hoop load; all vertical load taken by external stiffener columns
RoofSelf-supporting cone, radial rafters — clear-span with no centre column to Ø 15 m
FloorFlat concrete slab with in-floor perforated aeration ducts + external blowers
DischargeCentre sunken auger to an external pit, with sweep auger for clean-out
DiameterØ 5.24 – 14.96 m (7 to 20 panels per ring)
Wall height2.0 – 19.8 m (2 to 20 stacked rings) — add rings as you grow
Design basisEN 1991-4 grain loading (Janssen) · SANS 10160-3 wind · engineer sign-off per site
AssemblyBolted & modular — relocatable and expandable, not welded in place
Capacity per silo
50 – 2 750 t
Maize, peaked fill — from a single farm bin to a 2 750-tonne commercial silo. One system, sized to your harvest.
Cone roof
Ø15 m clear-span
Self-supporting to fifteen metres — no centre column in the way of fill or sweep.
Built in
RSA · since 1992
Cut, punched and rolled in Waltloo, Pretoria. Engineered for African conditions.

Indicative ranges for planning. Every silo is sized, load-checked and signed off by a professional engineer for your grain, site and wind zone before fabrication.

Made here. Raised near you.

Local steel, local hands

Cut in Waltloo, Pretoria

Locally manufactured

Not imported in a container. Designed, punched and rolled in our own factory — so parts fit, supply is close, and the engineering answers to us.

  • South African steel, South African manufacture
  • Built for our dust, heat, hail and wind
  • Spares and support a phone call away
  • Three decades of tank & silo engineering behind every panel
Certified installer network

Partner erected

Your Smart-Silo is raised by trained local partner teams close to your farm — not a crew flown in from far away and billed to you.

  • Faster turnaround, less travel and accommodation on your invoice
  • Every team builds to one Aquasteel standard, with our QC oversight
  • Work and skills kept in your own district
  • A path for local contractors to become certified build partners
The co-op model

Store together.
Sell as one.

Ten farmers with ten silos are ten price-takers. Ten farmers storing together are a supplier — with the tonnage to command a real price.

STORE

Cluster your silos

Neighbouring farmers each raise a Smart-Silo, or share a bank of them on common ground. Volume that a single farm could never hold on its own.

BRAND

One name, one grade

Grade to a shared standard and bag under one co-op brand. Consistent quality and quantity is what serious buyers actually pay for.

SELL

Meet the market direct

Pool your grain and negotiate as a block — straight to millers, feedlots and exporters, on your schedule and your terms.

We'll help you plan the layout, size the silos to your combined harvest, and phase the build so the co-op grows one ring — and one member — at a time.

Self-reliance

Farmers fed this country long before the middlemen did.

A silo is more than a purchase. It's the point where you stop selling grain the day it's cut and start deciding when, to whom, and for how much. That's not just a better price — it's independence you can measure in tonnes. We build the steel. You take back control.

Let's size a Smart-Silo for your harvest.