Home - Sparkonix (India) Pvt. Ltd. Sparkonix is a market leader in specialised CNC Machines for Roll Turning, Notching and Branding used in manufacturing of Steel Rebars. Why Sparkonix? At 1200+ installations, … Sparkonix is a market leader in specialised CNC Machines for Roll Turning, Notching and Branding used in manufacturing of Steel Rebars. Why Sparkonix? At 1200+ installations, …