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For the smallest to the largest WWTP

COMBIGUARD® Inlet Works Packages

Bringing together several of SPIRAC’s product solutions, the COMBIGUARD® has been developed to meet small- to large-size municipal communities’ requirements for the removal of screenings and grit.

COMBIGUARD® is a complete end-to-end wastewater pre-treatment plant, bringing together several of SPIRAC’s equipment solutions. Our product range coupled with a high level of knowledge and expertise makes our sales, design and project management teams able to offer packaged solutions for the smallest to largest Inlet Works

The following COMBIGUARD® types are available:

  • Type 1: SPIROGUARD® with or without Manual Bar Screen by-pass and a SANDSEP® Long (SAL), a rectangular tank with horizontal & incline conveyors for smaller WWTP. 
  • Type 2: Offers a wide range of SPIRAC equipment combinations. Enabling this type of COMBIGUARD® to be adapted to any requested flow requirement. 

The COMBIGUARD® Type 1 unit combines the features of:

  • SPIROGUARD® Compact Cleaner (CC) – This machine combines screening, conveying, dewatering, and removing solids from effluent and process streams in one compact machine. Ideally suited as a tanker reception facilitator screening separation unit, the SPIROGUARD is robust, easy to install and, with only one moving part, virtually maintenance-free. Slow speed combined with automatic intermittent operation ensures a reliable and efficient system. The SPIROGUARD CC Screen is designed as a standalone unit for pump-fed applications.
     
  • The SANDSEP® Long (SAL) is designed to separate grit from process and effluent streams. The tank design reduces turbulence to a minimum and creates an optimum flow pattern for efficient settling. The solids settle in the bottom of the tank, which contains a spiral. The spiral transports the sediment slowly (speeds are kept to around 5 RPM to minimise turbulence) to an inclined or vertical conveyor, which discharges the grit.

COMBIGUARD® is your solution to create a complete end-to-end wastewater pre-treatment plant that covers all of the applications required for municipal facilities. When brought together with screenings washing, dewatering and flotation, a complete inlet works system can be created. 

If your facility needs a reliable and effective inlet works solution, get in touch with us today.

 

PRODUCT BENEFITS
  • A complete screening and grit system.
  • Low capital cost, power consumption and wash-water usage.
  • Space-saving solution for facilities requiring a low equipment footprint.
  • A prefabricated solution that requires greatly reduced installation time on site.
  • SPIRAC technology with few moving parts, meaning lower maintenance and downtime.
  • Designs and layout able to be customised to suit client-specific requirements.
  • Simple and reliable operation due to low head loss.
  • Effective operation across a wide flow.
  • Simple automatic control offering great flexibility for facility workers.
  • COMBIGUARD® Type 1 capacity of up to 160l/sec (3.6MGD) and Type 2 can be adapted to any flow.  
  • Designs and layout able to be customised to suit client-specific requirements. Space-saving solution for facilities requiring low equipment footprint.
  • A prefabricated solution that requires greatly reduced installation time on site.
  • SPIRAC technology with few moving parts
  • Simple and reliable operation due to low head loss. Effective operation across a wide flow.

Photo gallery

COMBIGUARD Type1
COMBIGUARD Type1, SPIROGUARD®, Grit Tank, screeenings & grit handlingCOMBIGUARD Type2, SPIROGUARD® screen, Grit Vortex, SANDWASH screeenings & grit handlingCOMBIGUARD® Type 3 Inlet Works Package, SPIROGUARD® Compact Cleaner (CC) screen, SANDSEP® grit handlingCOMBIGUARD® Type 4 Inlet works package, STEPGUARD screen and grit tank handlingCOMBIGUARD Type 1

 

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      OUR FAQS

      Frequently Asked Questions

      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.

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