Rainier Precision

PH: 206.624.8258
Fax: 206.621.7180
Rainier Precision was founded by J.W. Trosper in Seattle over 61 years ago.  Today, the company offers Custom Plastic Injection molding services to customers across the US and Canada.  In addition, we manufacture a popular dehumidification product called Dri-Z-Air.

Custom Injection Molding Services conveniently available in Redmond, OR.

  • 25 ton to 140 ton Injection Molding Capacities.  Access to higher capacities as needed.
  • Re-Work and secondary operations.
  • Color Blending.
  • Tooling.
  • Part design and consultation.
  • Insert Molding.
  • Capability to produce 1 part or 2 million.  We will work with you to get it done.

If you are new to Injection Molding and want to learn more about the process, please watch the following video to familiarize yourself with the types of molds we can help you produce

Click here to watch the video on Injection Molding. (A new window will open).