In extrusion-based brick and clay product manufacturing, cutting accuracy depends on one critical factor: synchronization.
When clay exits the extruder, the column speed is not perfectly constant. Small fluctuations occur due to changes in material plasticity, feed balance inside the extruder, vacuum stability, and screw load variations. Even minor speed deviations can lead to cutting length errors, deformation, or unstable product quality.

This is where servo-driven synchronized cutting systems make the difference.

A speed sensor (encoder) continuously measures the actual velocity of the clay column. The motion controller calculates the synchronization parameters in real time and sends commands to a servo drive. The servo motor then accelerates the cutting carriage to match the clay extrusion speed before the blade cuts.

This “flying cut” principle ensures that cutting happens while the cutter and clay column move at the same speed, eliminating relative motion and maintaining precise product length.

The control loop works in milliseconds: Speed Detection → Sync Calculation → Servo Control → Precision Cutting

Compared with conventional fixed-speed cutting, servo synchronization provides: • Higher dimensional accuracy • Stable product quality • Adaptation to material fluctuations • Greater production automation

For modern brick and clay extrusion lines, servo-synchronized cutting has become a key technology for precision manufacturing.