Kyowa Filter Units, known as Bluemont Rock Bags™ are a sustainable erosion control product introduced in 1987 by the Japanese company. They are a simple solution of large mesh net bags filled with small rocks.
No. We only provide empty mesh-netted bags designed for holding the rocks and lifting rings required for deploying the Bluemont Rock Bags™s at the site.
A bag filled with small rocks works similarly to one large rock but more effectively. Bluemont Rock Bags™ placed on the site act as a barrier, preventing the water from washing away the soil or sand. The gaps between the small rocks also promote the growth of plant and marine life, strengthening the erosion control system further.
Yes. Bluemont Rock Bags™ are ideal for use in both freshwater and seawater environments.
As Bluemont Rock Bags™ are flexible in structure, they are suitable for many applications. You can use them for erosion control and prevention in ports and coastal areas, railways, bridges, waterways, roads, offshore and subsea.
No. Bluemont Rock Bags™ can also be used to build temporary work platforms and pathways, create coffer dams, protect underwater cables and pipelines, level uneven seabed, build artificial reefs, restore sinkholes and road collapses as an emergency, and many more!
Bluemont introduced Bluemont Rock Bags™ to the Australian market in 2016. It also covers New Zealand and the Pacific Islands.
Absolutely. Bluemont Rock Bags™ are a long-term and sustainable solution that can last over 50 years. The bag is made out of 100% recycled polyester, and the rocks used are sourced from the environment. Rocks Bags also support the ecosystems thriving around them.
Bluemont Rock Bags™ come in different sizes, designed to hold 1, 2, 4, or 8 tonnes of rock. The filling frame for each bag will help you fill it accurately to meet the optimum volume and weight.
Delivery to the eastern seaboard takes only 1-3 days, and delivery to the western seaboard takes around 5 days.
The actual deployment duration can vary from project to project, depending on the severity of the issue, land space that needs to be covered, and accessibility to the site. Usually, deployment and installation using a crane take around 5-10 minutes per bag.
Yes. We provide on-site training upon request. You can also do it quite easily with the help of our demonstration videos, brochures, and other materials provided.
We deliver them packaged in carton boxes, pallets, or crates. It depends on the quantity of erosion control bags ordered.
Yes. It depends on the size of the bag you order;
1t = 5x rock bags
2t = 4x rock bags
4t = 2x rock bags.
Please contact us at +64 (9) 872 2622 or email us at info@rockbags.nz to talk to one of our team members. They can help you determine if it’s the right solution for your project.
