How it works
A cold spark machine heats a small amount of metal granules, usually a titanium-based powder, and fires the glowing particles upward in a controlled fountain. Height and duration are set on the machine or by a lighting console over DMX, so several units can fire in time with the music.
Because there is no explosive charge and very little smoke, cold sparks are used in many places traditional pyro is not allowed, such as ballrooms, theatres and TV studios.
Good to know
- Cold does not mean safe to touch. The machine and the falling particles are hot, so keep clear zones around each unit.
- Keep machines away from curtains, drapes, balloons and low ceilings.
- Venues and organisers often still ask for a method statement and fire safety sign-off.
- Each burst uses granules, so plan how many cues the show needs and how many refills that takes.
