As René Gerber AG we place high demands on ourselves to construct the world's best flat polishing and honing machines for hard and ultra-hard material and have been implementing this successfully for more than six decades. However, we see the challenge not only in developing and building new machines, but also in maintaining the value of your investments. We adapt older systems that are still in good mechanical condition to today's market requirements. This modernization makes the machines reliable again and thus more profitable. Retrofit solves problems such as production interruptions. You regain reliability and production capacity.