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The new Series 600 John Deere Disks are designed for optimum disking performance in primary and secondary tillage conditions. The tandem design retains the performance characteristics of double offset configurations due to an exclusive rolling disk middlebreaker. Welded main and wing frames feature large square and rectangular tubes which are manufactured on common weld fixtures, providing a strong “family” appearance as well as reduced factory setups and inventories. These disks provide farmer-customers with many options and features necessary to operate in varying soil types and conditions while achieving level disking performance and uniform cutting action.

Simultaneous Engineering was used to design a new line of 600 Series tandem disks. Although the application of this technique met with many challenges, it was instrumental in achieving the objectives of the program. The Simultaneous Engineering approach can achieve significant cost reduction by preventing “avoidable” costs from entering the design during the initial stages. Product development proceeds with manufacturability built in and the method yields product and process designs that compliment each other. However, Simultaneous Engineering requires significant cultural change within the organization. New management emphasis is necessary to maximize benefits of the technique. Recommendations for engineering education are also included.