Let your equipment creat more value for you


DONGGUAN JOYDA IMPORT&EXPORT CO.,LTD.(Youniker), is a leading manufacturer of valve bag production machines based in China.

In 1995, Youniker succeeded in developing the first Chinese valve sack bottomer and putting it into production. We strode in the cement package industry with a high pursuit of good quality.

Feeling the trends of times, Youniker adhered to innovation. Over the years, we developed high-tech products, for instance, valve bag machinery with servo-system, valve sack bottomer with interior and exterior reinforcement units, double valves and paper-plastic double-valve bottomer, S-shape compactor and so forth. Along the road, Youniker harvested certificates and awards as we were valued for our works. So far, we possess over 50 inventions and patented technologies.


we provide advancedmanufacturing solutions suitable for your products.


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