silo system, Sliding Frame, sludge processing plant

Sliding Frame Silo

The silo had to be capable of holding a total of 2 x 260yd³/2 x 200m³ of sludge.

For maintenance purposes this capacity had to be divided across two identical tanks. This allowed either tank to be taken out of use and maintained without shutting down.

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Latest News & Articles

08 Sep 2026

SPIRAC is pleased to announce that it will be exhibiting at WEFTEC 2026 at Booth #6753

SPIRAC is pleased to announce that we will be exhibiting at WEFTEC 2026, the world's largest annual water quality exhibition and conference, taking place in New Orleans, Louisiana, USA. Visit us at Booth #6753 to discover the latest innovations in solids handling, dewatering, screening, grit handling, and shaftless spiral conveying solutions.

Exhibitions & Meetings Municipal Solutions North America News

07 Jul 2026

Shaftless Spiral Slewing Conveyor Maximises Sludge Outloading Flexibility

SPIRAC has manufactured a 12-metre shaftless spiral slewing conveyor designed to provide a flexible solution for sludge outloading. The design incorporates a single pivot point at the inlet, allowing the entire conveyor to slew across a wide operating arc and discharge sludge over a large area.

Municipal Solutions Shaftless Spiral Conveyors

19 Jun 2026

Designing for Extreme Rainfall Inflow Surges

Building Resilient Wastewater and Stormwater Infrastructure

Our testimonials

What They Are Saying

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

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.

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