Located in Saline, Michigan, R&B Plastics Machinery has been engineering and manufacturing blow molding machines and single-screw extruders since 1980. We provide remanufacturing and modernization services for R&B Plastics Machinery blow molders and extruders, but also for other manufacturers’ equipment as well.

Along with our sister company, Monroe Mold, R&B Plastics Machinery can offer rapid plastic prototype molds for bottle product testing and development on our in-house lab blow molder. Upon testing completion, R&B Plastics and Monroe Mold can determine the best blow molding machine and blow mold design to support your production needs.


Our mission is to provide engineered products and supportive services in a quality and competitive manner for the plastics extrusion and blow molding machinery markets. R&B will be a financially successful company, dedicated to long-term growth and committed to on-going product development. All employees will be provided with a safe working environment and our actions will be guided by manufacturing and management best practices.