Deep Industry Cultivation · Ingenuity Manufacturing
DONGGUAN LONGCHANG TECHNOLOGY CO., LTD is located in Hengli Town, Dongguan City, reputed as the "World Factory", and is a professional manufacturing enterprise focusing on the R&D and production of silicone rubber products.
Since our establishment, we have consistently adhered to the core business philosophy of "Excellence and Customer First," deeply rooting ourselves in the silicone rubber molding and manufacturing industry. Relying on years of profound industry experience, cutting-edge production technologies, and modernized factory facilities, we have successfully established an internationally advanced, scientifically rigorous modern production system and global manufacturing service capabilities.
With professional manufacturing capabilities and rigorous quality management, we provide customers with reliable, high-quality silicone rubber product solutions and establish long-term stable partnerships.
Furthermore, we boast a high-caliber engineering and technical team with over ten years of practical development experience, capable of accurately grasping market trends and the personalized needs of our clients. Whether dealing with complex structural designs, demanding material performance requirements, or pursuing the ultimate surface treatment techniques, we can handle it with ease and professionalism.
We are committed to providing you with a one-stop, closed-loop service spanning from project evaluation, precision mold design & development, exclusive material formulation, and high-efficiency sampling tests, all the way to large-scale finished product manufacturing, seamless multi-component assembly, and global logistics distribution. Our goal is to save you time, effort, and worry on your product's journey to market.
Regarding quality control, Longchang Electronic strictly adheres to the "Three No's" principle: "Do not accept defective products, do not manufacture defective products, and do not let defective products flow out." We have introduced industry-leading precision testing equipment, including 2D image measuring instruments, tensile testing machines, and constant temperature & humidity testing chambers, ensuring every outgoing silicone product perfectly meets or even exceeds customer expectations.
All materials can be provided with international certification-level test reports such as FDA, LFGB, and RoHS, resolutely putting an end to substandard materials. Quality is the red line for enterprise survival. Relying on a comprehensive, full-process quality management system involving all staff, we are committed to safeguarding your brand reputation.
To guarantee high-standard delivery, Dongguan Longchang Technology has heavily invested in first-class production workshops and continuously introduced industry-leading CNC processing and testing equipment, achieving full-process closed-loop control from molding to post-processing.
We implement a strict 5S management system and have set up dedicated dust-free production lines for medical and baby-grade silicone. The temperature and humidity control guarantees stable physical performance of materials and eliminates contamination at the source, meeting the strictest hygiene requirements.
Our powerful hardware matrix is the core foundation of our capacity breakthrough and precision guarantee. We are equipped with a complete set of automated equipment lines, capable of handling complex structures and strict tolerance challenges.
Efficient mixing, precise control of silicone and curing agent blending
Handling complex 3D surface machining for molds with micron-level accuracy
Dedicated to fine structures, deep grooves, and font engraving
Post-processing lines supporting smooth-touch coating and multi-color transfer
Processing fine clear angles and blind holes for ultimate product details
Flexible tonnage coverage adapting to molding from small gaskets to large parts
Providing highly customized silicone rubber molding solutions for medical, baby, industrial and other industries
Food-grade silicone certification, safe, eco-friendly and non-toxic, protecting the healthy growth of babies.
High-precision shock-absorbing and anti-slip protective parts, meeting the ultimate process requirements of electronic products.
High and low temperature resistant silicone sealing rings and kitchenware accessories for a safe kitchen experience.
Wear-resistant and tear-resistant environmentally friendly materials, providing comfortable and safe companionship supplies for pets.
全系列产品均可依据客户需求提供符合国际通用的硅橡胶品质认证与严格检测标准。