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Screening, conveying and dewatering

Pulp and paper Industry

SPIRAC has experience in wastewater treatment for the pulp and paper sector including aspects of system design and complete sludge management systems. 

Our products and solutions will take care of :

  • Coarse rejects conveying and dewatering
  • Pulp and sludge conveying
  • Waste stream separation
  • Grit classification and conveying
  • Various effluent screening systems
Inks or adhesives have an effect on the wastewater characteristics in corrugating plants and different methods of production or raw products in pulp mills can change the nature of the wastewater stream. 
 
We know that accidents do happen and armed with this knowledge, our robust products and solutions are designed to consistently perform. 
 
PRODUCT BENEFITS
  • Shaftless screw conveyor
    The unique design of the shaftless screw allows for higher filling rates and lower RPMs – resulting in less wear, and consequently less demands for repair and down time. The spirals themselves can be made of many different materials, however the primary material is high tensile micro-alloyed steel (HTMAS) – a special steel from Sweden with mechanical properties that deliver incredible strength to the SPIRAC spiral.
  • No intermediate or end bearings
    The more moving parts in a piece of equipment, the more faults that can occur. By eliminating intermediate and end bearings, the need for major maintenance work is reduced. It also allows for more efficient and direct transfer into another conveyor – whether that be horizontal, inclined or vertical.
  • DURAFLO® Type SPX liners
    SPIRAC’s proprietary liner – DURAFLO® Type SPX – has been designed specifically to ensure low wear and a long life. A combination of material thickness and formulation gives DURAFLO® Type SPX its unique wearing characteristics. DURAFLO® Type SPX has been developed over many years, and is one of the key features which ensures that SPIRAC conveyors stand as the industry leader. The DURAFLO® Type SPX liner also has a built-in wear indicator with a snap-in, snap-out feature, making it as painless as possible when the time comes to replace it.
  • Totally enclosed troughs
    SPIRAC shaftless screw conveyors come in horizontal, vertical and inclined configurations, and options for either a U-trough or octagonal (OK) trough. All varieties are totally enclosed with elastomeric seals and gaskets, ensuring there is no spillage of the material being conveyed and that odours are completely contained.
  • Direct drive
    Further reducing the downtime and expense that comes along with regular repairs and service, SPIRAC’s direct-drive design allows a clean and efficient transmission – without the required maintenance of belt and chain drives.

Photo gallery

Live-Bottom dewatered sludge
Vertical Paper Sludge transportOutlet shutes for de-inked sludgeDeinked paper sludge silo

Explore Recent Projects

SPIRAC equipment
For a Paper Mill

Screening and rejects handling at paper mill

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Vertical Sludge Conveyor System
Verical Shaftelss Screw Conveying

Paper Sludge Handling Systems

view project →
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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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      we serve clients in
      60+
      countries worldwide