A professional who tends machine that fills cavities of aluminium extrusions with cement to form thermal-conduction barriers for use in manufacturing windows and doors. Responsibilities include:

• Moves machine controls to regulate extrusion feed rate and speed of cement flow.
• Adjusts drive wheels, pressure rollers, and cement needle according to extrusion size and cavity to be filled, using wrenches.
• Starts machine that conveys extrusion on rollers through machine for filling operation.
• Observes operation to ensure cavity filling meets company standards.
• Readjusts settings when cavity filling falls below specifications.
• Stacks filled extrusions discharged from machine into cart with assistance from coworker.
• Places separator blocks and sticks between extrusion layers to prevent sticking and facilitate cement drying.