What is the QC test for suspension?

The quality control test (QC Test for Suspension) of the suspension system must strictly comply with industry standards and local certification requirements, primarily encompassing two major categories: performance verification and durability evaluation. Suspension springs are subjected to rigidity, fatigue resistance, and environmental adaptability testing in accordance with JB/T10416-2004 and GB/T13061-2017, including high-temperature and high-humidity cyclic tests to simulate tropical climate conditions. Rubber damping components must conform to the QC/T566-2013 standard, with tests for damping coefficient (0.2-0.4), static stiffness (tolerance ±10%), and temperature resistance (crack-free at -40℃ to 120℃), while also passing 100,000-cycle vibration fatigue tests to ensure structural integrity. Local market compliance further requires SIRIM certification, involving submission of technical documentation and sample testing, such as vibration tests and environmental assessments (e.g., MS 1236 specifications for braking systems). These tests not only ensure the suspension system meets safety and comfort standards but also address reliability requirements for electronically controlled active components in line with intelligent trends, exemplified by production process controls certified under the ISO/TS 16949 quality management system.