Special machine Duo-Dial Index: Burnishing of connecting rods

In order to achieve a significant roughness improvement after the fine spindling of connecting rods in the small eye, GSN has developed a stand-alone roller burnishing machine with a double spindle concept.

Machine type: GSN Duo double spindle rotary transfer machine

Workpiece: connecting rod
Processing: roller burnishing small eye
Cycle time: 5s


  • 4 station rotary transfer machine
  • Station 1: Automatic loading / unloading
  • Station 2: Double-spindle roller burnishing
  • Station 3: Blowing off
  • Station 4: In-process measurement
  • Significant roughness improvement from Rz ~ 2 to Rz <0.6