| After-sales Service: | Online Service |
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| Warranty: | 1 Year |
| Condition: | New |
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Shipping Cost:
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Audited Supplier Welcome to the world of Zhengrong precision machining.
With nearly 20 years of processing experience and are one of the oldest machining factories in China.
We specialize in the processing of precision, complex, special, small parts, and we have rich experience in CNC machining, lathing, milling,grinding, EDM, and wire cutting machining.
Especially in semiconductor testing equipment, medical equipment, electronic equipment, precision chemicals, aerospace, various machinery and other fields, it is widely used.
We enjoy a well-established reputation both domestically and internationally. And have established long-term friendly cooperative relationships with many customers in Japan, the United States, Europe, etc.
1. Small Batch & Single Piece Orders Welcome (MOQ=1 piece): We understand that your project needs may vary, and we're happy to accommodate single-piece orders or small batch runs.
2. Fast Lead Times: Get your parts quickly! Our lead times start at fast as 7 days, ensuring you receive your order efficiently.
3. Flexible Payment Options: We offer flexible payment terms with a 50% upfront deposit and the remaining balance due after successful quality inspection and your satisfaction.
4. Extended Warranty with 24-Hour Support: We stand behind our work. Our extended warranty provides peace of mind, and our dedicated team will offer solutions within 24 hours should any issues arise during the warranty period.
5. Uncompromising Quality Control: Every step of the production process undergoes rigorous inspection by our quality control department. Any parts not meeting our high standards are returned for rework, guaranteeing you receive top-quality products.
6. Documented Quality: We provide complete documentation for your parts, including raw material certificates, heat treatment reports, and detailed quality inspection reports.
7. Cost-Saving Expertise: With extensive experience, we can combine various processing techniques to optimize your project's costs while maintaining exceptional quality.
8. Secure and Professional Packaging: We employ professional packaging solutions tailored to the specific materials of your parts, ensuring they arrive safely and securely.
| Feature | CNC Machining | Turning | Milling | Grinding | Wire EDM |
| Machining method | Computer numerical control | Computer numerical control | Computer numerical control | Abrasive | Electrical discharge machining |
| Machining principle | Material is removed by controlling the movement of the machine tool | The workpiece rotates, and the cutting tool moves along a straight line | The cutting tool rotates, and the workpiece is fixed | Material is removed by abrasive grinding wheel | Material is eroded by spark |
| Applicable materials | Metal, plastic, wood, composite materials, etc. | Metal | Metal, plastic, wood, composite materials, etc. | Conductive materials | Conductive materials |
| Machining accuracy | High | High | Medium | High | Low |
| Machining efficiency | Medium | High | Medium | Low | Low |
| Machining range | Plane, curved surface, irregular shape | Rotational body | Plane, curved surface, irregular shape | Complex shape | Complex shape |
| Machining cost | Medium | Low | Medium | High | High |
| Application scenarios | Batch production, complex parts processing | Batch production of rotary parts | Small and medium batch parts processing, complex shape parts processing | Processing of difficult-to-process materials, thin-walled parts | Processing of complex shapes of difficult-to-process materials |
CNC Machining (Universal Option): For a versatile solution that handles various materials and complex shapes, CNC machining is ideal. It offers a wide range of capabilities, making it suitable for intricate parts with tight tolerances.
Turning (Efficient for Rotational Parts): If you need to batch produce rotationally symmetrical parts like shafts or bearings, turning excels in speed and efficiency. It's perfect for high-volume production of cylindrical components.
Milling (Flexibility for Planes, Curves, and Irregular Shapes): Milling is a versatile choice for processing flat surfaces, curved geometries, and even irregular shapes. It offers excellent flexibility for parts with diverse features.
Grinding (High-Precision Finishing): For exceptionally smooth finishes and tight tolerances, grinding is the go-to option. It's particularly suited for complex shapes that require high precision on critical surfaces.
Wire EDM (Precision for Difficult Materials and Intricate Shapes): When dealing with challenging materials like hardened steel or intricate shapes not achievable with traditional tools, wire EDM comes into play. It utilizes a thin wire electrode to precisely cut conductive materials with minimal heat distortion.
Established in February 2007, Qingdao Zhengrong Precision Machinery Co., Ltd. is headquartered in Chengyang District, Qingdao City, Shandong Province, China.
With over 50 employees, including 5 technical personnel, the company boasts a comprehensive range of departments, encompassing CNC machining, milling, grinding, EDM, quality inspection, and foreign trade. Since its inception, the company has adhered to stringent ISO9000 quality management standards in both production and quality control. Zhengrong's products are exported globally, establishing long-term and stable cooperative relationships with customers in the United States, Japan, Spain, Australia, and numerous other countries.
We invite you to explore the world of precision engineering with Qingdao Zhengrong. Our CNC machining stands ready to assist you in transforming your ideas into tangible components that drive innovation and success. Contact us today to discover how our expertise can elevate your manufacturing capabilities.
Q1: What kind of parts do you specialize in machining?
We excel at producing precise, small, special, and complex parts. Our expertise lies in creating intricate components that require tight tolerances and unique functionalities.
Q2: What processing technologies do you offer?
We possess a comprehensive suite of CNC machining capabilities, including 3-4 axis CNC machining, turning, milling, centerless grinding, surface grinding, cylindrical grinding, EDM (Electrical Discharge Machining), wire cutting, and laser cutting. This extensive range allows us to tackle a wide variety of projects with the most appropriate technique.
Q3: What tolerances can you guarantee?
We hold ourselves to the highest precision standards, guaranteeing tolerances down to +/- 0.001mm (1 micron or 1 micrometer). This ensures exceptional accuracy and functionality for your parts.
Q4: What is the typical lead time for production?
Our lead times are flexible and depend on the complexity of your project. Typically, we can complete production within 7-30 days.
Q5: Do you accept sample orders? And what is the sample lead time?
Absolutely! We understand the importance of sample verification before mass production. We offer sample orders with a quick turnaround time of approximately 7 days.
Q6: Do you provide inspection reports and material certificates?
Yes, we provide comprehensive documentation for your parts, including detailed inspection reports and material certificates. Additionally, we can offer heat treatment reports to ensure complete transparency and traceability.
Q7: How do you ensure quality?
We prioritize quality throughout the entire process. We have a dedicated in-house quality inspection department equipped with CMM (Coordinate Measuring Machine) testing capabilities. Furthermore, we support third-party testing to guarantee the highest quality standards for your project.
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Audited Supplier 
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