Four fire crews were called to Ardagh Glass Limited in Wheatley, Doncaster just after 7am on Saturday morning.
Firefighters from Doncaster, Edlington and Adwick stations arrived to find machinery on fire which had also spread to the roof area of the building.
One man suffered burns and was to taken by ambulance to hospital.
Crews used water jets to put the fire out, before leaving the scene at 10am.
The fire is believed to have started accidentally.