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MULTIGUARD coarse screen installation

The project involved replacing three aging coarse screens that protect the pumping station and form a critical part of the site’s flood mitigation strategy.

Three MULTIGUARD™ coarse screens were selected and engineered to fit within a channel measuring 2.7 metres wide, with an operating depth of 9.8 metres from floor level to invert. Each screen was designed to accommodate a flow rate of 4,661 L/s and was manufactured entirely from 316 stainless steel to ensure long-term durability and corrosion resistance in the coastal environment.

Screenings captured by the 15 mm bar-spaced screens are discharged into an existing SPIRAC shaftless spiral conveyor, which transfers the material to a SPIROWASH® screenings washing and dewatering unit for further processing.

MULTIGUARD coarse bar screen front view
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      SPIRACs engineers had an uncompromising commitment to develop and manufacture a leading inlet works solution within time and budget, allowing us to develop a sustainable plant for the future
      Mr. Davie
      Mr. DavieGoondiwindi, Aufsichtsrat /Entwicklungsberater
      Great system. We have it onsite at Rubyanna WWTP, recommend them for any plants for the future or even retrofitting! Flawless and easy! Also recommend SPIROTAINER. Less than 5 minutes from entering site with one and leaving with a full one! Great idea guys.
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      Jacob ColinsLystek Fairfield - Anlagenbetreiber /Produktkoordinator
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      Why Should You Buy From SPIRAC?

      SPIRAC is a trusted global leader in engineered wastewater solutions for materials handling, delivering reliable, purpose-built systems backed by decades of expertise. Customers choose SPIRAC for its ability to design and manufacture high-quality shaftless spiral conveyors, screenings handling systems, and bulk solids handling equipment that perform in the toughest industrial and wastewater environments. With a strong focus on innovation, durability, and low maintenance, SPIRAC solutions are engineered to reduce downtime, improve operational efficiency, and minimise lifecycle costs. Supported by a global footprint and dedicated local service, SPIRAC partners closely with clients to provide customised, end-to-end solutions that consistently deliver long-term value and performance.

      When you choose SPIRAC, you can expect a reliable partner committed to delivering high-performance, engineered solutions tailored to your specific needs. From the initial consultation through design, manufacturing, and installation, SPIRAC works closely with clients to ensure every system is fit-for-purpose and built to last. You can expect robust equipment designed for harsh operating conditions, minimal maintenance requirements, and long service life. SPIRAC also provides strong technical support, responsive service, and ongoing collaboration to optimise system performance, reduce operational costs, and ensure your materials handling processes run smoothly and efficiently.

      SPIRAC can confidently demonstrate a proven track record built on decades of global project delivery and industry expertise.

      With installations in municipal and industrial facilities across Australia, Europe, the Middle East, the UK, and North America, SPIRAC has successfully delivered thousands of materials handling systems operating in demanding environments such as wastewater treatment plants, pulp and paper mills, food processing facilities, and heavy industry. Its shaftless screw conveyor technology is widely recognised as a benchmark in the industry, with many long-term installations still operating efficiently after years of continuous service. In addition, SPIRAC supports its reputation with documented case studies, repeat clients, and ongoing partnerships with leading engineering firms and utilities—demonstrating consistent performance, reliability, and customer satisfaction across a wide range of applications.

      At SPIRAC, we understand that accurate cost visibility is critical to successful project planning. That’s why our team is ready to provide detailed, transparent quotations tailored to your specific requirements. Whether you’re upgrading existing infrastructure or planning a new installation, we work closely with you to scope your needs and deliver a clear, competitive proposal. With our engineering expertise and practical industry knowledge, you can move forward with confidence—knowing your solution is both technically sound and commercially aligned. Reach out today and let us help you plan with certainty.

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      56%
      of domestic wastewater is safely treated worldwide, and we aim to help improve this.
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