case study

Rotary fly cutting machine with slitting 

Activity sector : Foam and felt cutting for automotive industry

Costumer requirements

A manufacturer of foam and felt components for the automotive industry sought to optimize production by resolving two key challenges:

  •  Precise cutting on variable lengths
  • Quality rolling of materials into coils

Technical requirements included:

  • Cutting width of 600 mm
  • Variable lengths without tool changes
  • Production speed of 30 m/min
  • Material thickness range of 1mm to 10mm

CNM’s solution

We developed an innovative cantilevered machine integrating the following technologies:

1. Unwinding and Control System:

  • Principal unwinder with automatic inflation
  • Junction table with depressurization control
  • Dual motorization for precise pressure control

2. Advanced Cutting Module:

  • Specialized tool designed for both felt and foam
  •  Flying cutting control by brushless motor
  • Automatic synchronization of function block
  • Dual cutting system with nylon blades
  • Precise regulation with shim adjustment

3. Winding and Coil Management:

  • Suction conveyor with cutting guide
  • Exit rewinder with advanced tension management
  • Optimal bobbin clamping

The benefits of our machine

Our CNM Process solution maximized performance to 30 m/min while reducing setup times by 70% and ensuring optimal safety through an immaterial barrier and laser scanner. The results are concrete: exemplary precision across all materials (1mm felt to 10mm foam), a 40% reduction in production waste, and a 40% improvement in operational safety. This innovation revolutionizes production lines, proving that performance and safety can be complementary goals.