Quality Inspection System
Quality control is integrated throughout the entire manufacturing process. From incoming material verification and first-piece inspection to in-process monitoring, random sampling, and final optical sorting, every production stage is supported by defined inspection procedures to ensure consistent quality, dimensional accuracy, and batch-to-batch reliability.
Incoming Inspection
Raw material verification before production begins.
Sampling Inspection
Random checks performed before, during, and after production.
100% Optical Sorting
Automated inspection to remove defects before shipment.

Comprehensive Quality Verification System
Ensuring Material Integrity, Dimensional Accuracy, Mechanical Reliability, and Long-Term Performance
Metallurgical & Material Laboratory
Ensuring Material Consistency from Incoming Inspection to Heat Treatment
Raw material spectral detection
Verifies chemical composition and alloy consistency before materials enter production.
Mounting Preparation
Prepares samples for cross-sectional analysis and metallographic examination.
Cutting test
Cuts samples to expose internal structures for material verification.
Grinding experiment
Creates smooth specimen surfaces for accurate metallurgical evaluation.
Metallographic testing
Examines grain structure and heat treatment effectiveness under controlled conditions.
microscope
Provides detailed observation of microstructure, coatings, and material integrity.
Dimensional & Geometry Metrology Laboratory
Maintaining Critical Tolerances for Precision Assembly Applications
Keyence Fully Automated Imaging System
Performs fast and repeatable dimensional verification using automated vision technology.
Tianzhun Image Measuring Instrument
Measures critical dimensions and geometric features with high precision.
Contour detection
Evaluates profiles, depths, radii, and angles to verify design conformity.
Roundness detection
Checks roundness and cylindricity to ensure proper assembly fit and function.
Projector
Compares product geometry against engineering drawings and specifications.
Profile Projection Verification
Verifies contour consistency and dimensional accuracy across production batches.
Mechanical Performance & Stress Laboratory
Verifying Strength, Retention, and Fatigue Resistance
fatigue experiment
Simulates repeated loading cycles to evaluate long-term durability and service life.
Material stretching
Measures material strength, elongation, and deformation characteristics.
Elasticity test of retaining ring
Verifies spring force retention and elastic recovery after compression.
Limit speed test of retaining ring
Evaluates component stability under simulated high-speed operating conditions.
Clip insertion and extraction force
Measures installation force and retention performance after assembly.
Pin shear force test
Assesses resistance to transverse loads and structural failure risks.
Surface Quality & Environmental Reliability Laboratory
Validating Surface Performance and Long-Term Durability
Roughness inspection
Measures surface finish quality to support performance and wear resistance.
Digital micrometer
Confirms critical dimensions through precision measurement procedures.
Rockwell hardness test
Verifies hardness consistency and heat treatment effectiveness.
Vickers Hardness Testing
Provides localized hardness evaluation for precision components.
Salt spray test
Evaluates corrosion resistance under accelerated salt exposure conditions.
Condensation water experiment
Simulates humid environments to verify long-term durability and protection.
Automated Screening & Functional Testing
High-efficiency automated inspection system ensures stable production quality. Every batch is screened for dimensional accuracy, surface defects, and functional consistency to eliminate potential escapes.


























