Job Description:

• 1) Sets up and operates injection-molding machines to cast products from thermoplastic materials: Installs dies on machine, according to work order specifications, using clamps, bolts, and handtools.

• 2) Sets machine controls, regulating molding temperature, volume of plastic, molding pressure and time, according to knowledge of plastics and molding procedures.

• 3) Dumps premixed plastic powders or pellets into hopper, and starts machine.

• 4) Pulls lever to close dies and inject plastic into dies to cast part.

• 5) Removes finished product from dies, using handtools.

• 6) Trims excess material from part, using knife.

• 7) May mix thermoplastic materials and coloring pigments in mixing machine, according to formula.

• 8) May grind scrap plastic into powder for reuse.