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Quality & Inspection

Engineering-Driven Quality Management for Precision Manufacturing

All production and quality activities are managed through an online system and operated under an SGS-certified ISO 9001 quality management framework, ensuring controlled processes, consistent quality, and reliable delivery for CNC machining and sheet metal parts.

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Quality Management System

All production and quality processes are managed through an online system and operated under an SGS-certified ISO 9001 quality management framework, ensuring timely execution, efficient process control, and consistent manufacturing quality.

RFQ Submission

Project requirements and drawings are submitted for engineering evaluation.

Engineering Review

Drawings, tolerances, materials, and technical notes are reviewed to identify critical features and manufacturing risks.

DFM Feedback (If Required)

Manufacturability feedback is provided when design features may affect cost, quality, or lead time.

Process Planning & Control

Machining strategies, setups, tooling, and control parameters are defined to ensure stable production.

In-Process Inspection

Key dimensions and critical features are inspected during machining to monitor process stability.

Final Inspection & Validation

Completed parts are verified against drawings and quality requirements before release.

Documentation & Traceability

Inspection records and production files are stored in an online system and retained for a minimum of one year.

Packaging & Delivery

Parts are securely packed and shipped via UPS, DHL, or other approved logistics providers.

Continuous Improvement

Production and inspection feedback is reviewed to improve quality and repeatability for future orders.

After-Sales Support

Technical support is available after delivery to address quality feedback and repeat order needs.

Incoming Material Inspection

Incoming raw materials are verified through our online quality system using internal spectrometer testing, along with material inspection reports provided by the material supplier, to confirm material grade and chemical composition accuracy before production.
Portable metal spectrometer and accessories used for rapid alloy identification and material quality inspection in manufacturing and machining facilities.

Inspection Equipment

Calibrated inspection equipment used for incoming material verification.

Handheld spectrometer used to verify metal material composition during incoming inspection and quality control in a manufacturing environment.

Inspection Process

Incoming material inspection performed before production release.

Spectrometer analysis result showing chemical composition of 316 stainless steel, including chromium, nickel, molybdenum, and iron content for material verification.

Spectrometer Analysis

Internal spectrometer analysis used to verify material chemical composition.

Material inspection certificate for hot-rolled 316 stainless steel, including chemical composition, mechanical properties, heat treatment condition, and quality inspection results according to ASTM standards.

Material Inspection Report

Material inspection reports provided by the supplier to confirm material specifications.

In-Process Quality Control

Quality is monitored during machining operations through defined inspection points and real-time measurements to ensure process stability and dimensional consistency throughout production.

Machining Setup

First-Article Check

Defined Inspection Points

Critical Dimension Monitoring

Tool Offset / Process Adjustment

Continue Production

Final Inspection & Validation

Final inspection is performed using calibrated precision measuring equipment to verify dimensional tolerances, geometric features, surface finish, and other specified parameters before release.

Inspection Equipment & Capabilities

Core Inspection Equipment

Used for dimensional measurement and geometric feature verification.
For accurate height, flatness, and reference surface measurements.
Used to inspect contours, profiles, and feature geometry.

For hardness verification of applicable metal materials

Used for rapid hardness checks based on material requirements.
Measures surface finish parameters such as Ra and Rz.
Including calibrated calipers, micrometers, bore gauges, and thread gauges.

Purpose of Final Inspection

  • Verify dimensional tolerances and critical features
  • Confirm surface and hardness requirements (when specified)
  • Ensure parts conform to drawings and technical requirements
  • Approve parts for release and delivery

Tolerance Capability

Our tolerance capability is determined by part geometry, material, machining process, and inspection method. Final achievable tolerances are confirmed during engineering review.

Typical Tolerance Capability

Manufacturing ProcessTypical Tolerance Range
CNC Milling / Turning±0.005 mm (±0.0002 in)
Precision Features / Tight FitsDown to ±0.002 mm*
Bores & ShaftsISO fit classes upon request
Sheet Metal Fabrication (General)±0.10 – ±0.30 mm (material & thickness dependent)
Sheet Metal Bending / Forming±0.20 – ±0.50 mm (bend angle & material dependent)
Surface FinishRa 0.8 – 3.2 μm (process-dependent)

Factors Affecting Tolerance Capability

  • Part geometry and feature accessibility
  • Material type, thickness, and mechanical properties
  • Manufacturing process and setup stability
  • Inspection method and measurement resolution

Engineering Note

Tighter tolerances may increase machining complexity, inspection time, and cost. All tolerance requirements are reviewed during quotation to ensure manufacturability, quality stability, and production efficiency.

Traceability & Documentation

Production and quality records are managed through an online system to support traceability, controlled documentation, and post-delivery review.

Documentation & Record Control

  • Online Quality System
     Inspection data, production records, and quality documents are stored and managed through a centralized online system.
  • Inspection & Measurement Records
     Dimensional inspection results, final inspection reports, and measurement data are recorded for reference and review.
  • Material Documentation
    Supplier material inspection reports and internal verification records are retained to support material traceability.
  • Production Records
     Job records, process parameters, and revision history are maintained for manufacturing reference.

Record Retention Policy

Quality and production records are retained for a minimum of one year in accordance with internal quality control procedures.

Purpose of Traceability

  • Support quality review and root cause analysis
  • Enable repeat production with consistent quality
  • Provide documentation upon customer request
  • Align with ISO 9001 documentation and control requirements

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