Process Capability (CPK) and Defect Rate: A Quality Benchmark Achieved by Famor Ltd

Lean Production

Process Capability (CPK) and Defect Rate: A Quality Benchmark Achieved by Famor Ltd

Process capability is a statistical measure that evaluates how well a manufacturing process produces items within specified limits. One of the key indicators is the CPK (Process Capability Index), which assesses how centered and stable a process is concerning tolerance limits.

A high CPK value indicates a highly efficient process with a minimal probability of producing defective parts. For example:

  • CPK = 1.33 corresponds to approximately 64 PPM (parts per million) of defective products
  • CPK = 1.67 reduces defects to around 0.6 PPM
  • CPK = 2.00 ensures fewer than 0.002 PPM

These figures highlight the importance of a high CPK level in ensuring outstanding quality and minimizing non-conforming products.

Through stringent quality control and cutting-edge manufacturing processes, Famor Ltd consistently achieves these high standards, providing customers with top-tier quality and reliability. With Famor rolling mills, customer production is guaranteed without interruptions, ensuring efficiency and long-term continuity.