Quality Assurance at Tong Cheng Jian Hui Industries.
Engineered with an advanced manufacturing approach, reinforced by rigorous quality checks, and built to meet all industry standards, our prototypes and on-demand parts are designed for exceptional quality, pinpoint precision, and superior durability.
We Ensure Quality in Every Step
Step 1
Pre-Production
Technical assessment
Before the production stage begins, our engineering team performs a technical assessment of your parts design. This includes an assessment on important factors such as material, surface finish, structure, process, and other details of your 3D and 2D drawings.
Material verification
We offer a Certificate of Conformance (CoC) for the materials used in your parts, available upon request. This vital documentation originates from the raw material supplier and typically encompasses the material heat batch number, material specification (grade), dimensions, validated mechanical properties, and chemical composition breakdown.
Step 2
In-Production
On-site inspection system
In precision machining, materials being worked on must be always at the right position. With an on-site inspection system, positions are examined automatically, and adjustments are made accordingly. Using an on-site inspection system further helps avoid issues at the early stage, saving cost and time.
In-process quality control
Tongcheng Jianhui operates in strict adherence to ISO9001:2015 standards. Our dedicated quality control team performs hourly routine inspections on all parts in production, a proactive measure that effectively prevents potential risks and ensures consistent quality.
Step 3
Final-Production
Full-dimensional inspection report
Upon request for any order, we offer a Comprehensive Dimensional Inspection Report. This detailed document covers crucial aspects such as the quantity of parts, critical dimensions, thread specifications and tolerances, thicknesses, depths, and overall part appearance, ensuring complete transparency regarding component quality.
Packaging
Guaranteeing the highest quality of our manufactured parts is paramount. Recognizing the inherent unpredictability of logistics, we meticulously design our packaging process to significantly minimize transit risks. Our four-tiered protective system—comprising wrapping paper, additional protective foam, and a robust paper or wooden box—ensures your parts arrive in pristine condition, maintaining their superior quality and aesthetic appeal.
Integrated Manufacturing Excellence: Precision, Efficiency, and Supply Chain Reliability
Tongcheng Jianhui boasts a well-equipped manufacturing center, featuring precision stamping presses, large-tonnage stamping equipment (up to 200 tons), efficient laser cutting and bending systems, and professional welding platforms. Our team of experts, seamlessly integrated with automated production processes, ensures high efficiency and pinpoint accuracy in every manufacturing stage.
By maintaining direct control and stringent quality assurance over our production processes, we consistently deliver high-quality products, optimized delivery cycles, and more cost-effective solutions to our clients. This integrated management effectively mitigates supply chain risks, cementing our position as a stable and reliable strategic partner to our customers.
20+
years of manufacturing expertise
2000+
Parts Manufactured
4000+
stamping molds and tooling sets
Inspection Equipment
Our facilities are outfitted with advanced inspection equipment. We conduct thorough inspections at every production stage, ensuring that every component is manufactured accurately to your specifications.
