The End Drive Horizontal Balancing Machine is ideally suited for jobs with high inertia and where high power is consumed due to air resistance, etc. Productive Technologies Pvt. Ltd. Manufactures End Drive Horizontal Balancing Machine. Productive Technologies Pvt. Ltd. Is an ISO 9001:2000 accredited company. The weight of rotors which can be balanced is limited by acceleration capacity of drive unit and speeds available on the balancing machine. Gap bed machines are available for bigger diameter jobs. This type of End Drive Horizontal Balancing Machine is also used for high speed applications due to safety factor etc.