Electric Hair Curler Manufacturer Reduces Defect Rate from 2% to 0.03% with Validynamics CNC Servo Press
A leading Dongguan exporter of professional electric hair curlers was struggling with their core assembly process: press-fitting the 6.0 mm hardened steel motor drive shaft into a sintered bronze bushing inside the ABS housing (0.02 mm interference fit, target depth 18.5 mm).
Using their previous pneumatic press, even slight pressure variation caused misalignment or over-compression, cracking the housing or damaging internal wiring. Monthly defect rate: 2%.
After integrating the Validynamics CNC Servo Press (high-precision ball screw driven by servo motor), they achieved:
• Position accuracy of ±0.01 mm
• Real-time force-displacement monitoring with auto-stop function
• Full digital curve recording for every cycle
Within three months, defect rate dropped to 0.03%, rework was eliminated, and production efficiency increased by 18%. The client now uses the press data for ISO quality audits.