Commercial Grain Bunker

Grain Bunkers are the accepted industry standard for bulk grain storage in Australia with the majority of grain produced on an annual stored in grain bunkers prior to export. Commercial Grain Bunkers are an extremely flexible grain storage method being low cost, transportable and with short lead times.

Commercial Grain Bunker

Grain Bunker dimensions can be modified to accommodate any site design or volume with a traditional grain bunker being 35 metres in width, 300 metres in length and storing approximately X tonnes of wheat.

In 2015 GGHS identified an opportunity to advance the grain bunkers technology creating a patented clamping system that allows unskilled staff to cover grain bunkers with tarpaulins competently and efficiently.

Competitive Advantages the GGHS Commercial Grain Bunker Delivers

The key benefits of GGHS’s Grain Bunker has been analysed under 4 key business success pillars:


  • Reduction in direct cost of covering the grain - 85% increase in efficiency.
  • Reduction in maintenance cost associated with older systems that have nuts, bolts etc


  • The new structure allows consistent and increased tensioning of tarps. Existing systems rely on manual tarping and result in inconsistent tensioning of the tarps.  During storms, poorly tensioned tarps can move and be damaged resulting in lost equipment and grain losses, due to water damage. Tensioned tarps can also reduce the amount of bird tears caused.
  • The system allows standardization of practice through a primarily mechanical process rather than previously manual.


A key driver for an improved tarping system is enhanced worker safety.  In 2009 WorkSafe investigated grain bunker tarping practices and identified some significant safety issues. They found that working conditions coupled with the heavy nature of the tarps contributed to two deaths in Australia in the past 12 years alongside countless unreported injuries.

  • Reducing the time taken to complete the tarping process by 85% reduces employee exposure to the dangerous environment of working on the tarps and significantly reduces fatigue during the peak harvesting season.
  • The new structure is pre-fabricated, requiring no maintenance in contrast to current structures, which have many pinch points, and sharp edges which are both safety and maintenance issues.
  • The new structure does not require consumables in contrast to the current system, which requires clamps and boards that create slip and trip hazards when at ground level.


  • The product reduces the risk of major grain loss events occurring through increased grain coverage.
  • The products seal is superior to the standard wooden board system which has a risk for potential insect resistance that is a catastrophic risk if unabe to export grain.

Patent References

  • International Patent Application Number PCT/AU2015/000708
  • Australian Patent Number 2015902457
  • South Africa Patent Number 2017/05343
  • United States 10383286B2
  • Ukraine 201711607
  • India 201717043266
  • Russia RU2632977C1
  • China 201580081149.X
  • Patents in all other grain producing countries to be published once granted