Lewei Precision leverages advanced manufacturing technologies, stringent quality assurance protocols, and unwavering adherence to industry standards to guarantee the highest levels of quality, precision, and durability in every prototype and on-demand production part.
Every Step
We Ensure Quality in
Pre-Production
Initial Design Evaluation
Before the production journey begins, our expert engineering team conducts a thorough technical review of your part’s design. This evaluation covers essential factors such as material suitability, surface finish requirements, structural integrity, and process feasibility. We meticulously analyze both 3D and 2D drawings to ensure your design can be efficiently produced.
Material Verification and Certification
We understand the importance of using the correct materials for your project. Upon request, we provide certification for the raw materials used in manufacturing your parts. The certification includes detailed information from the material supplier.
In-Production Quality Control
Real-Time On-Site Inspection System
During production, precision is paramount. To maintain the highest standards, we deploy an advanced on-site inspection system. This automated system ensures that all parts remain in the correct position throughout the machining process, reducing the risk of errors and ensuring quality consistency
In-Process Quality Checks
Lewei Precision strictly adheres to ISO 9001:2015 quality management standards. Our quality control team conducts rigorous inspections every two hours during production to ensure every part meets our high precision standards. We provide these detailed reports on request, ensuring full transparency in our manufacturing process.
Final-Production
Comprehensive Dimensional Inspection Reports
We provide thorough dimensional inspection reports for every order to ensure that all parts meet your specifications.
Superior Packaging for Safe Delivery
We recognize the unpredictability of logistics and the importance of delivering high-quality parts in perfect condition. To protect your parts during shipping, we implement a meticulous, multi-layered packaging process.This carefully designed packaging system ensures that your parts are delivered safely, maintaining their integrity and visual appeal, regardless of the shipping conditions.
Standards
Manufacturing
Lewei Precision takes pride in our self-owned factories, which are equipped with the latest technology and precision tools. Our production facilities feature a wide array of high-end equipment, including CNC machines, advanced injection molding systems, precision laser cutters, automated benders, welders, and cutting-edge 3D printers, among others. With such a diverse set of capabilities, we are able to tackle even the most complex projects with ease.
By handling all manufacturing processes in-house, we ensure stringent quality control and maintain oversight at every stage. Our automated production lines enhance both efficiency and precision, allowing us to meet tight deadlines without compromising on the quality of the parts. This direct control enables us to stay flexible with production schedules, providing tailored solutions that align with your specific needs.

Precision-Driven Quality Checks
We’re committed to delivering flawless components. Our facilities are equipped with state-of-the-art inspection tools that enable us to perform meticulous checks throughout every stage of production.



Commitment to Excellence: Our Certifications
Lewei Precision prioritizes quality and industry compliance in every aspect of our operations. To reaffirm our commitment to excellence, we have actively sought and attained certifications from trusted industry bodies. These certifications reflect our dedication to upholding rigorous standards and continuously improving our manufacturing processes.


Quality Assurance Documentation
We offer detailed quality documentation, including inspection reports, material certifications, and compliance documentation for all projects.
Each product is verified to meet customer requirements for color, texture, and overall visual consistency
Verification of Standards
We use precise measurement tools like vernier calipers, height gauges, and CMM machines for detailed inspections.
Visual Inspection
We assess components for functionality, ensuring proper fit of parts such as threaded holes during assembly.
Dimensional Evaluation
A final inspection report details all inspection processes, including results, and ensures product quality compliance.
Performance Assessment
Upon request, we provide RoHS reports, confirming materials meet RoHS standards for environmental compliance.