Die Casting shop, Investment Casting shop Oregon, USA, Supplier

A U.S. owned and based component supplier having over 25 years’ experience in tooling and production. Manufacturing processes include metal casting and stamping.


Specializations include stamping, investment casting, die casting and electric motors. Industries served include industrial, automotive, consumer and medical. 
The majority of our production work is done in China supervised by our offices in Tianjin, Shanghai and Shenzhen.  The US staff does application engineering, quality control preparation and standards maintenance as well as order tracking and shipping logistics. Our China staff audits each factory using TS16949 level analysis and all of the preparation required for PPAP Level 3.


During tooling, our staff assures that methods and materials are appropriate in preparation for first articles. During production our staff regularly visits the factory to make sure that the Control Plan is adhered to. When a part is rejected our US/China staff forms a corrective action team to determine root cause, issue a Corrective Action Report, quarantine suspect parts, and assure the smooth flow of replacement parts as needed.


Dealing directly with China can be risky, but Sinotech mitigates those risks through proprietary monitoring and control processes.  Sinotech is not a broker; it takes possession of the parts and provides extensive engineering services. You may want to check out some of the video links, articles, and product links on this webpage.





  • Automotive stampings
  • Die Cast Aluminium
  • Truck Htch and Coupling Castings
  • Investment Casting
  • Powdered Metal Forming
  • Deep Draw Stainless Steel
  • Elelctric Motors
  • BLDC Motors
  • Automotive Investment Casting
  • Custom Motors


  • TS16949 certified
  • ISO 9001 :2008
  • Just-in-time delivery
  • AQPQ
  • US SBA Export and Trade Counselling Certification
  • PPAP


  • Pro- E
  • Solid Works
  • CAD Readers for All Formats
  • MPI Magnetic Particle Inspection
  • Xray Inspection
  • CMM (Coordinate measuring machine)
  • MoldFlow Simulation
  • Rockwell & Vickers Hardness Testers
  • Tensile Strength & Elongation Tester Machine

Sinotech, The following suppliers (machine shops, fabricators, casters, molders, 3D printing, CNC machining, etc.) provide manufacturing services for the machine tool industry, automotive industry… For more information visit analyzes all engineered parts and RFQs for improved manufacturability and to ensure quality and a quick quoting experience.

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  • Portland, Oregon
  • USA 97225