SP
Three-screw stainless steel screw press for sludge dewatering in an industrial hall
Troubleshooting

Cake Not Discharging

Cake sticking or failing to leave the press

The cake fails to discharge cleanly from the outlet — sticking in the chute, building up, or not forming a proper plug. This interrupts operation and can back up the machine.

The symptom

The cake fails to discharge cleanly from the outlet — sticking in the chute, building up, or not forming a proper plug. This interrupts operation and can back up the machine.

Causes and corrective actions

Possible causeCorrective action
Back pressure too high forming a hard plugReduce back pressure so cake releases.
Sticky, over-conditioned cakeReduce polymer to a firmer, crumbly cake.
Chute too shallow or roughSteepen the chute or line it with a low-friction surface.
Downstream conveyor stopped or fullInterlock the press with the conveyor and clear the blockage.
Close-up of self-cleaning ring disc filter elements of a multi-disc screw press
RF Series Screw Press

Self-Cleaning Ring Disc Filter Elements

Fixed and moving stainless steel rings form the filtration gaps and keep them clear continuously — no filter cloth, no clogging.

Explore the RF series
Engineering Assessment

Ready to Find the Right Screw Press?

Our engineering team provides application-specific screw press sizing and selection — based on your sludge type, flow rate, and dewatering targets.