Quality Certified

Since 1983, we work under a company-wide quality control (CWQC) system, which consists of: standardization, education and training system, departmental management, 5S organizing system, product quality assurance system, quality control circles, the kaizen continuous improvement system, policy management, T123 activities, functional management, corporate culture management, and 8D Eight Disciplines of Problem Solving method.

These systems and processes have helped us move beyond mere quality protocols toward an organizational culture that consistently embraces and prioritizes quality assurance above all else. At Tiger Steel, quality awareness and quality assurance skill sets are high, and these infuse everything we do, from input inspection, production, reliability testing, to pre-shipment inspection, to guarantee that our clients can rely on our faultless spring products every time.


1. List of Quality Certificate

  • ISO-9001
  • ISO-14001
  • IATF16949
  • Certified supplier to Ministry of National Defense
  • Certified supplier of bolster springs to Taiwan Railways Administration
  • Inspection-Free Vendor status with China Motor Corporation
  • Q1 Preferred Quality Award of Ford Motor Co. worldwide
  • Certified supplier to Yulon Motor Co.
  • Certified supplier to Luxgen Motor Co.


2. List of Testing Equipment

Equipment for analysis of materials and heat treatment
  • Metallurgical microscope
  • Hardness Devise
  • Magnetic Inspection Devise
Equipment for testing and analysis of mechanical properties
  • Load Testing Machine
  • Six-axis Force Testing Machine
  • Torque Testing Machine
  • Clamping Force Testing Machine
Equipment for Fatigue testing and analysis
  • Fatigue test machine for laminated springs
  • Fatigue test machine for compression coil springs
  • Fatigue test machine for torsion springs
  • Fatigue test machine for tension springs
  • Fatigue test machine for stabilizers
  • Fatigue test machine for torsion bars
  • Fatigue test machine for railway track fastening clips
  • Salt spray testing equipment
  • Oil / water resistance testing equipment
  • Environment resistance equipment
Other equipmen
  • Projector
  • Stress analyzer
  • Surface roughness testing device