Founded in 2013, from a single workshop in Zhongshan's Torch Development Zone to a Class 100,000 line in Henglan. Thirteen years on liquid silicone rubber, and nothing else.
Zhongshan Runweikang Silicone Technology Co., Ltd. was founded in 2013 and is located in Henglan Town, Zhongshan, Guangdong. We develop liquid silicone products, design and build the molds, and manufacture and sell the molded parts, with a team of experienced technical and management staff.
The plant runs liquid silicone injection molding in a Class 100,000 cleanroom with dedicated laboratory and packing areas. The lab controls inspection data across the whole chain — a 2.5D optical measuring system for dimensions, VOC testing for volatiles, and thermal cycling of overmolded parts (70 boils of 5 minutes plus cooling, per infant sterilization duty) — so every batch carries traceable dimensional, cosmetic and outgassing records. The PP overmolding recipe itself took 18 months and dozens of substrate–silicone combinations to settle — which is why we are unusually cautious about material changes mid-project.
We take on OEM, OBM and ODM programs and serve four customer groups: infant feeding, medical devices, consumer electronics and industrial sealing. What thirteen years left behind is a material library and a set of process parameters: which hardness suits which geometry, which overmolding window suits which substrate, and which step is likely to drift once volume ramps.
The point is not to make silicone parts. It is to make silicone parts repeatable. That is the value order we have confirmed with customers again and again: consistency and traceability first, then price and lead time.
Three moves, each one to bring the line closer to a single word: stability.
Not slogans — the rules we use when a decision is hard.
We own the equipment, the cleanroom and the inspection line — which is what keeps scheduling and tool changes under our control.
| Brand | Tonnage | Qty | Typical use |
|---|---|---|---|
| Yizumi | 120T | 2 | Precision small and mid-size parts |
| Ningbo Lianyuan | 140T | 5 | Overmolded and mid-size parts |
| Guangzhou Baojie | 120T | 1 | Multi-cavity small parts |
| Damuzhi | 120T | 2 | Multi-cavity small parts |
The table above lists 10 machines in the main configurations. The line currently runs 13 LIM liquid silicone injection molding machines; the remaining machine list is available on request.
Certification is the entry ticket. Patents are the marks we have left on mold design and overmolding processes.
You are welcome to walk the line in Henglan, Zhongshan. If travelling is not practical, we can issue a manufacturability review against your drawing first.