Ordering and Site Preparation

What’s involved when I purchase a silo from HE Silos Gunnedah?

  • null

    Begin ordering process

    Contact our team on 1300 764 700 for a quote or fill out the quote enquiry form  for our sales team to provide you with the best price and advice for your specific needs.

  • null

    Order confirmation

    Once you have accepted your quote our team will email through all relevant documents for your silo order including silo design, foundation guide, silo operation manual and your 20% deposit invoice.

  • null

    Prepare foundation

    We provide you with silo foundation guide only as we do recommend you consult a structural engineer for your soil requirements. Prior to the silo delivery your concrete foundation must be ready.

  • null


    You will receive our standard silo design but if you have specific requirements, our draftsman can design to your exact needs. Once the silo design is approved our manufacturing team get to work.

  • null


    Our team is ready to delivery your silo on your designated delivery date. When we arrive to site we have all the equipment needed for the install.  Once we leave the site your silo is ready to be used.

Silo site preparation

To ensure you are ready when your new silo arrives, you must carefully consider your silo location. When selecting a site location for your silo, the following factors need to be considered:

  •      Suitability of soil
  •      Silo foundation
  •      Accessibility
  •      Overhead powerlines / hazards

When ordering your new silo from HE Silos Gunnedah, you will receive a copy of our Silo Operation Manual. This publication includes a helpful checklist and further information on your silo site preparation.

Silo installation

When you order with HE Silos Gunnedah, our professional team will schedule your silo delivery date. Our Logistics team will arrive onsite with all the equipment needed to install your new silo.

This includes:

  • Standing the silo up with our custom-built silo carrier
  • Positioning the silo on the foundation where you require
  • Screwing the silo down to the foundation
  • When our team leaves the site, your silo is ready to be used!

Sealed, gas tight silos

Sealed silos, otherwise known as gas tight silos, are recommended for long term storage of grain. Sealed silos are a controlled atmosphere that acts as fumigation chambers for the effective control of insects at all life stages. A silo is only truly sealed if it passes a five-minute half-life pressure test according to the Australian Standard AS2628. A silo that does not meet the standard will allow gas to leak out. The concentration of fumigant is reduced, and there is a chance of insect survival.

HE Silos Gunnedah ensures it has met and exceeded Australian Standard AS 2628 of sealed silos. This is done throughout the manufacturing process through:

  • Ensuring all seams and joins are sealed both inside and out
  • Rubber seals made of high density on all openings
  • Pressure relief oil valve
  • Ability to pressure test your silo onsite
  • Silos are pressure tested before leaving our factory

Silo safety

HE Silos Gunnedah recognises the importance of safety in silo use. All silos are fitted with these features for your safety:

  • Ladders and cages that comply with Australian Standard AS1657
  • Sealing requirements for insect control that comply with Australian Standard AS2628
  • Slide ladders that lock into place above ground to prevent children and visitors from climbing the ladder.
  • Sight glasses x 2 at top and bottom of silo to indicate the level of grain inside
  • Safety mesh guard in silo roof.
  • Ground opening lid
  • Silo operation manual
  • Warning labels positioned on the silo.
  • Serial number plate to identify the silo as manufactured by HE Silos Gunnedah

Workcover has created this great checklist to minimise the risk associated with the use of silos on farm. Click on the link to complete. Silo safety self-assessment checklist | SafeWork NSW