Quality Assurance
Our operations adhere to a stringent ISO 9001:2015-certified quality management system, underscoring our dedication to continuous improvement and exceptional customer satisfaction. Through rigorous process controls and real-time monitoring, we ensure every project meets global standards for precision, reliability, and compliance.
- Finished product pass rate: ≥98%
- On-time delivery rate: ≥95%
- Customer satisfaction score: ≥95/100
Comprehensive Quality Control Systems for Reliable Manufacturing
Samshion has a complete metrology lab and well trained quality engineers and technicians to ensure dimensional accuracy, visual quality, and repeatability. Under our ISO9001:2015 certification, we equip with powerful quality inspection tools which covers from Process Control Plans (PCPs), FMEAs, to part by part work instructions, parameter sheets and standardized workflows. With these,it enables us to consistently produce parts with consistency and timeliness as well as mitigate the risk.
By integrating advanced inspection technologies (CMM, optical comparators) and proactive quality audits, we minimize defects, optimize workflows, and exceed client expectations across prototyping, low-volume, and high-volume production phases.
We implement rigorous quality assurance protocols to ensure consistency across every component, product, and project. Our commitment extends from meticulous design validation to proactive process innovation, supported by cutting-edge technology and a skilled team dedicated to precision rapid manufacturing.
Every project undergoes Design for Manufacturing (DFM) analysis to optimize producibility, followed by contract reviews and production capacity assessments (PMC) to align resources with your timeline. Raw materials are inspected for compliance, while in-process quality checks (IPQC) and real-time monitoring minimize deviations. Nonconforming products trigger corrective actions, and final inspections (OQC) deliver certified test reports for traceability. Ensuring we exceed expectations in material selection, turnaround, and technical collaboration.
Our 6-Step End-to-End Quality System
Quality is controlled at every stage — not just at final inspection. Here is what happens to your parts from order receipt to delivery.
Incoming Material Inspection (IQC)
Every raw material shipment is quarantined until verified against mill certificates. We confirm material grade, check physical dimensions against stock specs, inspect surface condition for defects (laps, seams, pitting), and verify hardness on heat-treated stock. Non-conforming material is segregated, tagged, and returned to supplier with a formal NCR.
First Article Inspection (FAI)
The very first part off every new setup is 100% measured against the drawing before batch production begins. A First Article Inspection Report is generated with every drawing callout measured and recorded. Any deviation triggers immediate process correction before the run continues — no exceptions.
In-Process Inspection (IPQC)
Critical dimensions are verified at key operations using calibrated gauges, indicating micrometers, and plug/snap gauges. For production runs, we monitor Cpk-critical features with control charts. Operators are required to verify their own work at the station before transferring to the next operation — quality is everyone's responsibility.
Final Dimensional Inspection (OQC)
Every precision part is inspected on our CMM or calibrated instruments against all drawing tolerances before release. Inspection uses ISO 2859-1 AQL sampling as standard, with 100% CMM inspection on orders specifying it. Measurement data is recorded on the dimensional report, cross-referenced to batch and material lot number.
Visual & Cosmetic Inspection
100% visual inspection under calibrated D65 lighting for all parts. Inspectors confirm: deburring complete (no residual burrs or sharp edges), surface finish consistent with Ra specification, no cosmetic defects (scratches, tool marks, coolant staining), coating uniformity, and absence of surface contamination or foreign material.
Documentation Assembly & Release
Before shipment, the quality documentation package is assembled and signed off by our QA Manager. Package includes the Certificate of Conformance, dimensional inspection report (where specified), and material test reports. Parts are released only when all documentation is complete and within specification — no partial releases.
Advanced Inspection Technologies for Precision Manufacturing
Our metrology lab is equipped with calibrated instruments covering dimensional, surface, hardness, and thread verification — all maintained under our ISO 9001 calibration program.
Coordinate Measuring Machines (CMM)
3D coordinate measuring for complex GD&T: true position, runout, profile, flatness, and cylindricity on parts up to 1000×800×600mm
Optical Comparator
2D profile comparison for thread profiles, complex contours, and radius verification against drawing overlays
Surface Profilometer
Mitutoyo SJ-210 contact profilometer for Ra, Rz, Rmax surface roughness. Calibrated to ISO 4288 with traceable calibration artifacts
Optical Emission Spectrometry (OES)
Our state-of-the-art Optical Emission Spectrometer (OES) ensures 100% material traceability and compliance by accurately identifying and verifying the chemical composition of all incoming metals.
Go/No-Go Thread Gauges
Complete sets for M, UNC, UNF, BSP, and NPT thread forms. All gauges calibrated and traceable. Thread gauging is standard on all threaded parts
Bore Gauge Sets
Precision bore diameter measurement for ID features. Calibrated to ring gauge standards. Used for all critical bore fits (H7, H6, etc.)
Comprehensive Quality Documentation & Inspection Services
We deliver full-spectrum quality documentation, including detailed inspection reports, material compliance certificates, and regulatory documentation, ensuring transparency and traceability for every project. Our visual inspection protocols verify color accuracy, surface texture, and aesthetic integrity against client specifications, utilizing calibrated lighting systems and digital imaging tools for objective assessments.
For dimensional validation, precision instruments (vernier calipers, micrometers, CMMs) measure simple to complex geometries, achieving tolerances as tight as ±0.01mm. Performance testing evaluates functional aspects like thread fitment, assembly compatibility, and stress resistance under simulated operating conditions.
First Article Inspection (FAI) reports provide exhaustive records of initial production samples, covering all inspection stages from raw material checks to final part validation. Upon request, we supply RoHS compliance certificates and full material disclosure (FMD) reports, confirming adherence to international environmental and safety standards.
Scientific management
Establish standardized and scientific management concepts;
Develop reasonable working procedures and operating standards;
Cultivate excellent employees with first-class skills;
Improve production efficiency.
Lean production
Based on customer expectations and values, we continue to strengthen production planning management, production process optimization, supply chain coordination optimization, production cost control, staff quality and other aspects of operation management. Continuously improve ourselves so that continuously improve customer satisfaction.
High efficiency and quality
Through the implementation of the quality management system, we strengthen quality control and inspection in each process of the production and ensure effective communication between customers and all departments.At the same time, we also train the employees’ quality awareness, continuously promote the technology’s upgrading so as to efficiently manufacture high-quality products.
Encouragement and innovation
Establish a learning organization system,
implement scientific management,
collect and sort out corrective and preventive measures knowledge, production technology, business data or production experience coming from professional and technical personnel or departments,
form an important valuable resource of the company,
provide continuous training and summary for employees,
encourage innovation and enhance the competitiveness of the company.