Problems · Troubleshooting

Why Filter Plates Crack & Fracture

Symptoms · Root Causes · Proven Solutions

A cracked plate is a loss-of-integrity event, usually visible at a feed hole, corner, chamber wall or edge. Stop the cycle and identify whether overload, trapped debris, heat or chemical weakening, or one-sided filling initiated the fracture before another plate is installed.

The Problem

What Is Happening?

Trace the fracture origin and direction rather than treating every slurry leak as a gasket fault. A crack that propagates through the plate body requires removal; it cannot be corrected by higher clamping force or surface cleaning.

Common Symptoms

Visible cracks or splits on plate surfaces and corners
Heavy slurry leakage from cracks during filtration
Hydraulic clamping pressure cannot remain stable
Uneven stress damages adjacent plates

Root Causes

4 Root Causes

Excess Feed Pressure

Operating pressure exceeds the plate rating.

Foreign Material

Debris or wrinkled cloth is trapped during clamping.

Material Degradation

Heat or chemical attack weakens plate toughness.

Uneven Slurry Filling

One-sided chamber filling creates unbalanced stress.

Proven Solutions

3 Recommended Actions

Solution 01

Control Feed Pressure

Keep pressure within the plate rating and increase it gradually.

Solution 02

Inspect Before Clamping

Remove foreign objects and lay cloth flat before startup.

Solution 03

Replace Aged Plates

Replace the fractured component with a material and pressure class verified for the slurry chemistry, maximum temperature and press rating. After replacement, confirm even chamber filling so the new plate is not exposed to the same unbalanced load.