Quality Control

Quality Control

Quality Management System with Stakeholders in Mind

Yin-Ching keeps different stakeholders in mind, even in the quality control process. We include internal quality responsibility, customer requirements, and legal obligations in our holistic quality control process.

GOOD QUALITY, FAST DELIVERY

Our principle of customizing parts for automotive and motorcycle shock absobers is to provide high-quality parts through expeditious delivery. Our standardized holistic quality management system ensures that we can develop and machine parts in an efficient way.
Our quality management system conforms to ISO 9001: 2015. This means, from procurement of raw materials to final products, the production process is optimized through strict inspection and therefore achieves good quality and fast delivery.

Quality Control Instruments

Yin-Ching uses multiple quality control measures in the machining process to inspect different machined parts for vehicles and motorcycles, such as damper tubes, piston rods and other customers’ orders.

Machined Items	Measurements	Gauges
Raw material Quality Inspection	Dimensional measurement	Vernier caliper
Raw material Quality Inspection	Hardness test	Hardness tester
CNC lathed Damper tubes and piston rods	Dimensional measurement	Vernier caliper Outer diameter micrometer Inner diameter micrometer Bolt gage, ring gage 2D measure instrument Height gauge Fool-proof jig
Damper tubes machined through ID grinding	Dimensional measurement	Inner diameter micrometer Inner diameter air gauge
Damper tubes machined through ID grinding	Surface roughness test	Surface roughness meter
Motorcycle piston rods machined through OD grinding	Dimensional measurement	Outer diameter micrometer Laser scan micrometer
	Straightness	Straightness
	measurement	measurement instrument
Heat treated damper tubes and piston rods	Dimensional measurement	Outer Diameter Micrometer Laser scan micrometer
	Surface roughness test	Surface roughness meter
	Hardness test	Hardness tester

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