
Quality Inspection
Need an expert rapid prototyping service? We bridge design to production. Request an instant quote with free engineering analysis for precision parts within one day.
- Online instant pricing & Free DFM
- Instant quote within 24 hours
- Tight tolerance controllinto +/- 0.01mm
Quality Inspection Department Overview
Our Quality Inspection Department serves as the final gateway for product excellence. Utilizing skilled personnel and precise instruments like Coordinate Measuring Machines (CMM), height gauges, and optical systems, we perform thorough verifications based on specific product tolerances. Only items passing our strict quality audit leave the facility. We guarantee dimensional accuracy and superior appearance, delivering high-quality products that match your exact design specifications.
Assembly Services
Sureton serves as a one-stop aluminum die-casting manufacturer, delivering services from precision casting to customized assembly. We provide cost-effective manufacturing solutions for global clients. In addition to premium die-cast aluminum parts, our direct assembly services deliver significant value
Cost-Efficient Logistics:
By performing casting and assembly under one roof, we remove intermediate shipping steps, lowering transportation costs.
Streamlined Efficiency:
With specialized assembly lines, our team accelerates the manufacturing cycle, saving time and reducing total production costs.
Lean Inventory Management:
Our real-time production model minimizes warehousing requirements, reducing stock overhead and easing inventory control for clients.
Our Manufacturing and Packaging Process
Sureton delivers a comprehensive range of custom packaging solutions tailored to client specifications. We provide both secure layered (bulk) and individual unit packaging options optimized for global markets. Understanding international logistics, we offer eco-friendly packaging designs using sustainable materials—such as recyclable cardboard and reusable plastics—to align with your sustainability goals and ensure safe export.
Customer products Factory Direct Export & Global Logistics
Sureton streamlines international distribution with on-site warehousing and direct loading capabilities. We ensure seamless global shipping, delivering products directly from our factory to your designated sea port, airport, or freight forwarder.
Materials

Aluminum Alloy
Aluminum die casting delivers lightweight, corrosion-resistant components with superior thermal conductivity. Highly recyclable and durable, these high-performance parts are the ideal choice for diverse industrial and automotive applications.
Aluminum ADC12, ADC6, A360, A380, 6061, 7075, etc.

Zinc Alloy
Zinc die casting offers superior flowability, enabling intricate designs with tight tolerances and thin walls. This material combines high precision and natural corrosion resistance with cost-effective production, making it ideal for complex, high-volume components.
Zinc Zamak 3, Zamak 5, Zamak 2, ZA8

Steel and Others
Steel CNC Machining delivers unmatched strength and wear resistance for high-load applications. Combining exceptional durability with precise heat treatability, our custom machined steel parts are the ideal choice for critical, high-performance industrial components.
Alloy Steels (4140/4340), Stainless Steels (303/304), Carbon Steels, Titanium Alloys, etc.
One-stop Processes
Mold Manufacturing

High-accuracy aluminum and zinc alloy parts produced with state-of-the-art die casting machines ensuring precision and durability….
Die Casting

With machines from 88T to 800T, we produce high-accuracy aluminum and zinc alloy parts catering to diverse industrial needs…
CNC Machining

Over 50 CNC machines, including 3-axis, 4-axis, and 5-axis, deliver precise and efficient machining for complex geometries….
Surface Treatment

Specialized surface treatments enhance corrosion resistance and improve coating adhesion for long-lasting performance…
Chemical Pretreatment

Specialized surface treatments enhance corrosion resistance and improve coating adhesion…
Quality Inspection

Strict quality checks ensure compliance with ISO 9001 and IATF 16949 standards, utilizing advanced CMM measuring equipment…
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FAQ
Our quality inspection team is composed of senior engineers with more than 10 years of experience. Some members hold ISO 9001 and IATF 16949 quality management system certification training certificates to ensure that the inspection meets industry standards.
We are equipped with high-precision three-dimensional coordinate measuring machine (CMM), spectrum analyzer, X-ray flaw detector, salt spray tester, roughness measuring instrument, hardness tester and other advanced inspection equipment for comprehensive quality control.
Our tolerance control can reach **±0.01mm**. For special high-precision parts, the accuracy can be further optimized according to customer requirements.
We use regularly calibrated inspection equipment and perform SPC statistical process control to ensure accurate and reliable data.
Yes, we can provide FAI (First Article Inspection Report), CPK analysis, full-size inspection report, etc. to ensure that the parts meet the design requirements.
Yes, we use spectrometers to test the composition of materials such as aluminum alloys and zinc alloys to ensure compliance with industry standards such as ADC12, A380, AC44300, #3, #5, etc.
We use roughness meters, gloss testers, salt spray tests and other methods to ensure that the surface treatment meets the requirements of corrosion resistance, smoothness and aesthetics.
Yes, we can cooperate with third-party testing agencies such as SGS, TÜV, BV, etc. to provide additional quality certification.
We perform IQC (incoming inspection), IPQC (process inspection), FQC (finished product inspection), OQC (shipping inspection), and use AQL sampling standards for batch testing.
Our quality testing complies with international standards such as ISO 9001, IATF 16949 (automotive industry), RoHS, REACH, etc. to ensure that product quality meets standards
