JUMBORAX is a leading supplier of customized cast steel parts for the world’s major machinery and equipment companies. We provide you with a one-stop service for casting solutions, covering all manufacturing processes from casting, CNC machining, and welding. Our headquarters is located in Shanghai, China. Thanks to the geographical location, we can easily ship cast steel parts all over the world.

We use a variety of casting processes to produce steel alloys, ferroalloys, and aluminum products. In our casting production line, we can handle mechanical parts of all material levels ranging from 10KG to 100 tons, so that we can better serve customers demands.

JUMBORAX’s quality control strategy is accompanied by a comprehensive quality management system. We have obtained ISO9001:2015 quality management system certification. From receiving the inquiry to the delivery of the final product, quality is always the most basic element between JUMBORAX and the customer.

Shanghai Jumborax Machinery Co.,Ltd.

180,000㎡ of one-stop production base for steel casting, welding and machining. The latest 25T LF Refining Furnace and VD Vacuum Degassing Furnace are equipped to meet more technically advanced casting needs.

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Dream Big

Inspiring Solutions

To be a century-old enterprise.
To be the leading sustainable and smart foundry in the world.
To be an enterprise that brings happiness to the staff.

Sarah Guan
CEO & Founder


Quality Products Start With Quality Castings

If you think that this sounds like an all too familiar salesman’s pitch, then we invite you to come and see for yourselves – come and meet our people, see our world class facilities and make up your own mind.