Quality Assurance

Our commitment to quality is validated by multiple industry-recognized certifications. We hold ISO 9001 and ISO 13485 certifications, which demonstrate our compliance with international quality management standards. These certifications assure our customers that we have a strong quality management system that is focused on continuous improvement and customer satisfaction.

Extremely Tight Tolerances – Swiss machines hold the workpiece securely next to the point of operation throughout the machining process. Because the workpiece is supported so close to the tooling operation, it remains stable and virtually unaffected by tool forces. This ensures precision within extremely tight tolerances, even when machining very small parts.

We conduct thorough inspections of all incoming materials to ensure they meet our high standards. This initial step is crucial for guaranteeing that we use only the best materials right from the start. Our inspection process includes verifying material certificates, conducting physical and chemical tests, and ensuring that all materials meet the specified requirements before they are approved for use in production.

1、Appearance inspection
2、Dimension inspection
3、Tensile strength test
4、Hardness test

During the manufacturing process, we implement rigorous in-process quality control measures. Our advanced monitoring systems and measuring equipment allow us to continuously check and record every step of the machining process. This ensures that each part maintains the highest level of precision and consistency. Our in-process quality control includes:

1、Regular calibration of machinery and equipment.
2、Conduct surface finish and hardness tests to ensure that the parts meet the requirements.
3、Statistical process control (SPC) to identify and correct any variations in the production process immediately.
4、Intermediate inspections at key stages of production to detect and address any deviations early.

We conduct a comprehensive final inspection of every part, which includes product dimension measurement, appearance inspection, and functional testing, to ensure that the parts fully comply with the customer's specifications and quality standards. Our inspection process is as follows:

1、Using advanced measuring instruments like Coordinate Measuring Machines (CMM) to verify precise dimensions.
2、Conducting surface finish and hardness tests to ensure the parts meet the required specifications.
3、Performing functional tests to verify that the parts operate correctly and efficiently in their intended applications.
4、Documenting all inspection results and providing detailed reports to our customers for transparency and traceability.

To ensure your custom components are delivered to your exact specifications, every shipment from Sunnyhowe includes comprehensive quality documentation upon request:
3D CMM & Full Dimensional Inspection Reports: Complete dimensional layout verified by our advanced Coordinate Measuring Machines (CMM).
Material Certifications (MTC): Full traceability reports and mill test certificates verifying exact metal and plastic raw material grades.
Surface Roughness & Hardness Reports: Verifiable data ensuring post-processing and finishing meet international cosmetic and industrial standards.
Industry-Specific Compliance: Full alignment with our ISO 9001:2015, AS9100D (Aerospace), and ISO 13485:2016 (Medical) management systems.

We understand that your non-standard components and prototypes represent critical intellectual property. Protecting your design is our top priority.
Strict Non-Disclosure: We happily sign and strictly adhere to standard Non-Disclosure Agreements (NDAs) before you share any files.
Secure Data Handling: Your 3D CAD/STEP files are processed through encrypted internal servers and are accessible only to authorized engineering personnel.
IP Security Guaranteed: From initial rapid prototyping to full low-volume production, your proprietary designs remain completely secure with us.