A professional who tends hydraulic press that compresses powder in cardboard cases for use as pyrotechnic (firework) flares and signals. Responsibilities include:

• Places cases in mold of press and locks mold.
• Weighs and pours specified amounts of powder into cases.
• Pulls lever or pushes button to raise press bed and force ram into mold to compress powder in case.
• Releases pressure and removes mold.
• Breaks open molds with mallet and removes containers.
• May add specified quantities of explosive powder to form igniting charge.
• May be designated according to type of pyrotechnic loaded as incendiary grenade press tender; smoke signal press tender; star signal press tender.