A leading investment casting and precision machining foundry in China

We specialize in complex casting projects and are equipped to handle any design challenges you present. You can count on us to find an investment casting solution that will deliver the results you need on time and on budget.

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QDOS Services

We have more than 15 years specialized at investment casting and machining, we accumulate much more experience for OEM &ODM products. By this, we can do better and win-win for long term in service. Best of all, from a solid model to a metal prototype, in 10-15 working days for samples or small batch. From casting or solid bar to finish products,we can be your one-stop partner.

 

About QDOS

Qingdao OS Machinery Co., LTD., founded in 2014, is an enterprise integrating precision casting and precision machining. Engaged in OEM/ODM stainless steel/carbon steel/alloy steel machinery parts production and processing, annual output of 600 tons. Precision casting using silica sol process, product surface up to Ra6.3, size up to +/-0.10mm; Product processing, the company has four axis and horizontal processing equipment, processing accuracy of +/-0.015mm, can be four axis processing. Linkage and other complex products processing.

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Full-Service Casting and Machining Capabilities

Casting & Machining

Our office is accompanied by our full-service foundry, capable of fulfilling your custom needs. By partnering with us for your investment casting and machining projects, you will benefit from the experience and capabilities of an industry leader. We offers a variety of services to ensure the quality and longevity of all of our investment casting and machining products.

heat treatment workshop
Heat Treatment& Mechanical Performance

Our heat treatment solutions include annealing for machinability, normalizing, tempering, plasma nitriding for material stress relief, and hardening for durability and wear resistance. And carry out corresponding testing.

Finish Treatment

As for custom finish treatment, QDOS handles all plating and surface treatments. This includes phosphate coating, burnishing, hand polishing, passivation, pickling, electro-polishing, sand blast, glass bead sandblasting, vibration grinding, magnetic needle grinding.

coordinate measuring machine
Quality Assurance

According to requirement of clients, we conduct non-destructive testing such as x-rays, Grade A x-rays, HIP(or hot isostatic pressing), magnetic particle inspections, fluorescent penetrant inspection, salt spray test and so on.

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