Spiralman™ Shaftless Spiral Screen Brochure

As the shaftless spiral turns it clears screenings from the perforated sieve and conveys them out of the channel. The Spiral is fitted with a brush in the Sieve Zone to keep the screen clean. The solids continue through the Transport Zone, through the optional Wash Zone and ultimately to the Dewatering Zone prior to discharge. To make maintenance both accessible and easy the entire length of the spiral sits in a U-trough. The Spiral remains the same diameter over it’s entire length, reducing the potential for blocking. The spiral in the Sieve Zone is bolted to the transport spiral and can easily be removed for brush replacement in a safe and comfortable environment. The brush is mounted to the spiral with clips. Each clip has two bolts to securely hold them in place. A spare sieve spiral with a brush attached can also be provided. The Transport and Dewatering Zones have bolted covers for easy access to remove obstructions, inspect, repair or maintain the unit. Bolted wear bars in the U-Trough make replacement easy.