Quality Control & Standard
At Shengxin, we prioritize quality above all. Certified to SGS, our comprehensive quality control system covers every stage from raw material selection to production and final inspection, ensuring compliance with international standards and environmental sustainability.
Our consistent commitment to quality has earned the trust of leading brands such as ThermoFisher, BYD, Honeywell, and more.











Quality control flow chart
We maintain strict quality control throughout the entire production process, which from incoming material inspection to final product shipment. Every step is carefully managed to ensure product consistency and full traceability. The following graphic provides a clear overview of our quality control process — illustrating each step and its relationship from raw material sourcing to final product delivery.
Quality Assurance Workflow
1. Quality Control Team
Our quality control team is composed of highly trained professionals with years of experience in the silicone industry. From raw material selection to final shipment, they meticulously monitor every step of the production process. Their commitment to excellence ensures that each product leaving our facility meets the highest quality standards, providing our clients with consistent and reliable results.
2. Incoming Quality Control (IQC)
We believe that high-quality products start with premium raw material. Sourced from trusted suppliers, our materials meet international standards, such as FDA, LFGB, RoHS and REACH, ensuring compliance with both production and client requirements.
3. Clean Production Environment
Our production workshops are equipped with advanced machinery to ensure efficient and precise manufacturing. Featuring SGS Class 8 cleanrooms, we maintain a controlled environment that meets strict cleanliness standards, ideal for producing high-quality, contamination-sensitive products.
4. In Process Quality Control (IPQC)
We implement comprehensive online quality inspections throughout the entire production process, with real-time monitoring of dimensions, appearance, functionality, and more. Each step follows standardized operating procedures and inspection records, ensuring the products meet both the drawings and customer specifications.
5. Packaging and pre-shipment inspection (OQC)
Check product identification, quantity, packaging method, and transportation safety.
6. Customer Feedback Closed-Loop Handling Mechanism
We value every customer’s feedback. For any issues, we follow a systematic 8D process and a customer handling flowchart, enabling quick responses, thorough analysis, and complete improvements. This ensures issues are resolved and prevents recurrence. It’s our commitment to quality and our promise to our customers. Please contact us if you need more.
Quality testing equipment and technology
We use advanced testing equipment to conduct comprehensive evaluations on every batch of products. From tensile strength to heat resistance, our state-of-the-art equipment ensures that the products meet all functional and safety requirements.
Rapidly tests the elemental composition and weight of materials.
Analyzes the physical and chemical properties of materials, such as frequency response, etc.
Tests the elongation and tensile strength of materials
Tests how materials behave under different load conditions.
Inspects product dimensions and geometric precision.
Measures the dimensional accuracy of products.
Get a Free Quote
- We can provide free samples for your reference.
- From concept to completion, we can provide one-stop custom services.
- You may send us samples or 3D CAD drawings in STEP, IGES, X_T, or DWG formats. We will provide a detailed quote within 48 hours.
Get a Free Quote
- We can provide free samples for your reference.
- From concept to completion, we can provide one-stop custom services.
- You may send us samples or 3D CAD drawings in STEP, IGES, X_T, or DWG formats. We will provide a detailed quote within 48 hours.