About Us

Qingdao Hongjiyuan Metal Products Co., Ltd started as a factory to manufacture steel springs from year 2010. With several years experience on springs, it started to produce complete trampolines from year 2014. After introduced new technology of trampolines, HJ-yuan has studied a new set of trampolines which compromises entertainment, body fitness and parental education and earned good reputation from the customers.

HJ-yuan trampolines has been more and more popular due to below factors.
1. Great quality, best after-sale service, and compative cost.
2. Sound security for kids and adults.
3. Improved the simplicity of the trampolines’ play methods.
4. Break the limitation of play time.
5. Broaden the diversity of amusement projects.


HJ-yuan trampolines are always put the customers’ requirements on the first place, keep improving the quality and innovating our products , promote our service to satisfy every customer. Choose HJ-yuan, choose fun and fitness.

Our Services

We have our own advantages and offer best services anytime.

  1. OEM Service

    We accept OEM and could print the customer’s logo on the product as required.

  2. Sample service

    We could do trampoline sample according to the customer’s design requirement. Sampole cost could be refunded once getting production order.

  3. After sale service

    Our trampolines have one year warranty. Except man-made destruction, we promise return and exchange service.

Our Vision

We would keep our policy- quality and safety first. Offer our best service to our dear customers anytime.

We would insist our own research and designs, try to make out more and more new products to suit people’s new tastes.