Durability & Performance: High-strength concrete or weather-resistant steel.
Portability: Both systems are designed for easy relocation.
Hygiene & Storage Quality: Clean systems with aeration support.
Fumigation Capability: Designed for effective gas-tight sealing.
Tailored Support: Expert advice, installation, and maintenance included.
Gwydir Group is one of Australia’s top manufacturers and suppliers of grain bunkers; offering both steel and precast concrete systems to deliver versatile and reliable bulk storage solutions.
Grain bunkers are ideal for producers needing flexibility. Unlike fixed silos or sheds, they can be disassembled and relocated as your seasonal or site requirements change.
Our precast concrete grain walls, in partnership with Conron Stockcrete®/Civilcast, are purpose-built for on-site storage of grain, fertilizer, nuts, sand, gravel, and other dry commodities.
Material strength: Made from 45 MPa concrete reinforced with synthetic fibers and steel.
Configuration: Standard panels are 3 m long × ~1.03 m high × ~0.7 m base, weighing approximately 1.2 t each.
Connectivity: Built-in ferrells and hot-dipped galvanised plates ensure secure joins.
Design benefits:
Modular U-shaped setups that maximise pad capacity.
Clean, hygienic, and efficient—easier to maintain than earth bunkers or steel walls.
Tarp-friendly curved top edge and clamping system enable effective gas-tight sealing for fumigation.
Durable and relocatable, with straightforward installation and removal.
Our fully galvanised steel bunker walls offer a lighter, more portable alternative:
Wall height: 750 mm, with lengths customised to your site layout.
Sealing system: Lock-in mechanism supports tight gas fumigation.
Advantages: Cost-effective, transportable, and backed by our ongoing maintenance services to ensure continued performance.
Gwydir Group provides tailored aeration systems for both concrete and steel bunker walls:
Enhance storage hygiene by reducing moisture, mold, and insect activity.
Support grain quality control, extend safe storage life, and prevent germination losses.
Gwydir Group distributes Landmark® polyfabric tarps, designed expressly for grain bunkers:
Superior properties: Excellent lay‑flat performance and cracking resistance.
Halves the weight of PVC, fully recyclable, and backed by a 5‑year UV warranty.
Available in multiple weights, sizes, and colours—trusted across Australia for elite bunker protection.
| Feature | Concrete Grain Walls | Steel Bunker Walls |
|---|---|---|
| Durability | High strength, 45 MPa reinforced concrete | Galvanised steel—weather-resistant |
| Portability | Modular & relocatable | Lightweight and transport-friendly |
| Seal & Fumigation | Curved edge + clamping = gas-tight seal | Locking boards + tarp compatibility |
| Maintenance Efficiency | Hygienic, minimal tarp needed | Regular steel maintenance available |
| Hygiene & Storage Quality | Easier to clean, prevent pests | Fully compatible with aeration systems |
Grain storage quality is essential for preserving the value of your harvest. Gwydir Group provides tailored solutions, whether you choose concrete grain walls or steel bunker panels, complete with aeration and top-tier tarps.
With over 25 years of experience, Gwydir Group has become a leader in grain storage, handling equipment, and steel fabrication across Australia. Our extensive industry knowledge allows us to understand the unique challenges faced by agricultural and industrial enterprises, particularly in harsh environments.
Our solutions are backed by an understanding of the specific needs of your operation. Our reliability and commitment to delivering top-tier solutions ensure your project stands the test of time. Align with a company that values quality, innovation, and sustainability, ensuring that your investment is protected and yields long-term results.
No two projects are the same. That’s why we offer customised solutions that are designed to meet the exact requirements of your operation.
From custom silo solutions, storage sheds, or specialised handling equipment, our team works closely with you to ensure our solution meets your requirements.
With Gwydir Group, you’re not getting a one-size-fits-all product; you’re getting a solution that’s customised for your specific needs, ensuring maximum value and effectiveness.
More than just a supplier; we’re a partner dedicated to your success. From the initial consultation to post-installation support, we offer a comprehensive range of services that ensure your project is completed on time, within budget, and to the highest standards.
We provide guidance, technical support, and maintenance services, ensuring that your storage and handling equipment continues to perform at its best long after installation.
By carefully selecting our partners based on their dedication to quality, reliability, and service, we ensure that every product we offer meets the highest standards.
When you work with Gwydir Group, you're getting the best in the industry. Every component is built to last, reducing the risk of operational failures and ensuring consistent performance. Choosing Gwydir Group means a partner who prioritises quality at every stage, delivering solutions that you can depend on.
