Founded over 40 years ago, TPI Powder Metallurgy is a manufacturer of powder metal components. Based in St. Charles, Mich., the company specializes in custom parts and assemblies for the automotive, hydraulic, appliance, hardware and lawn/garden industries. TPI Powder Metallurgy offers a wide range of products that includes automotive seat, door and engine and power transmission components. The company also manufactures pump rotor, eccentric, locking arm and helical gear. In addition, TPI Powder Metallurgy renders an array of services, such as compaction, sintering, tool and die, fabrication, gage construction, component prototyping, machine components, welding, fabrications and general machining services.