Reliability is tested during development, not after

Hair tools see heat, humidity and constant handling. Salons and the Japanese market expect them to last, so testing is built into each project.

Examples from the lab

Hair pull test

Checks components stay fixed under pulling load.

Transport vibration

Simulates shipping to confirm the structure holds.

Open/close cycling

Repeats switches, covers and moving parts many times.

What the lab covers

Durability, mechanical	Universal material tester, impact tester, hardness tester
Environment, ageing	Salt-spray chamber, high/low temperature cycling, ageing chamber
Safety, compliance	Flammability tester, EMC suite, IP rating tester
Precision	Laser defect inspection, spectrophotometer, sound level meter

This is the basic set; the plan changes with product type, market and your requirements. Devices such as ultrasonic care tools need extra checks like air-tightness and amplitude.

On the production line

Incoming material inspection
Assembly monitoring
Reliability validation
Final inspection