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Photo courtesy A. Zweygarth Univ. Machinery, TU Braunschweig, active in teaching, research and industry projects Ph. Drivetrains, hydraulics and terramechanics of tractors and mobile machinery, cumulative damage in fatigue, gobal product planning and technology management, education and technology transfer, ISO standards Important national and international honorary positions and awards.
One key discipline to meet this target is agricultural mechanization. It increases agricultural productivity in a dramatic manner as demonstrated in all industrialized countries in which the output of one agricultural worker has been raised, for example, by a factor of or more; in some cases, such as tillage with large tractors or harvesting with self-propelled machines, by factors of between about and Important additional benefits can be seen in constituting the precondition for developing a nation from poverty to prosperity due to a reduction in the number of agricultural workers and the transfer of the labour force to other sectors of the national economy.
In fact, most countries of the world are behind the industrialized ones in terms of economic performance. People leave their home countries not only because of natural catastrophes or wars but also due to poor living conditions.
Hence, local improvements are urgent. For this reason, this book addresses engineering fundamentals not only for the high technologies of industrialized countries, but also for less developed countries. Consequently, proved basic designs and classical publications are included within defined technology levels, a principle which was first presented by the author in the CIGR Handbook of Agricultural Engineering, Vol.
Participation in international conferences, working on international tractor projects, and contributing to ISO standards supported the international view.
As a co-founder and Board Member of the Club of Bologna, the author benefitted for some 30 years from the worldwide networking of this unique group of leading agricultural engineers. The book addresses not only students and practical tractor engineers but also colleagues of research, education, public tests, and engineering management.
Facing the strong trend to global business it attempts to consider all ISO standards of agricultural tractors. I would like to thank all colleagues of our community who supported this project. My deepest gratitude goes to my wife Maria for her tireless support over the years.
Finally, my sincere thanks are also addressed to Stacy A. Marinelli for her patient corrections of my English and also to the Springer team for all its support. Any suggestions for further improvement are welcomed. The world is expected to carry up to 10 billion people by the year Thus, farm output has to double using more or less the same amount of farmland globally.
Obviously, agricultural mechanization is a main pillar for feeding the world, now and probably even more so in the future.
In addition, agricultural mechanization is typically needed as the first step of general mechanization of a nation for its advancement from poverty to welfare and prosperity. Global annual sales of tractors are estimated to be about 1. With that, tractors represent by far the largest segment in the agricultural machine industry and they play a central role in the mechanization of farming.
We forecast that this will stay unchanged in the next decades ahead of us. However, the tractor in its current form will change. Interestingly, the verb to tractor does not exist, while the tractor performs all key jobs in the field, such as planting, plowing, mowing, and so on.
The tractor will become more automated and autonomous, and at the same time tractor concepts will vary. The tractor is increasingly becoming part of a connected and digitalized production system that enables resource optimization and sustainable farming. But all these smart farming systems will only work if the base machine, the tractor, is innovative, reliable, and durable.
That is what this book addresses: the fundamentals of good tractor engineering, as a foundation for all that will come. I read it with enthusiasm, not knowing at the time that I would have the privilege to become a member of the tractor industry. Until today it has laid for me the foundation for my knowledge around tractors. I remember a conversation with Professor Renius in Berlin on August 21, , about the need for an updated international tractor book.
This vision has now become reality and the result at hand mirrors the expertise of an author who has been working on tractors and their components for more than 50 years in research, teaching, engineering, standards, patents, and worldwide consultation. I congratulate Professor Renius on this new English reference book for science, education, and industrial practice on tractor design fundamentals and I am sure that I can thank him on behalf of so many others in our industry for having put together a work that is fundamental for all who study the technology in and around tractors in more detail for the years to come.
The launch of the Fordson tractor in the first tractor with block chassis design and large scale production boosted productivity and working comfort in the subsequent years. In the following decades, the tractor developed into a multi-purpose and mobile energy source with standardized interfaces to connect to a tremendous variety of agricultural implements.
In the future, digitization will further advance automated and autonomous processes. Through connectivity, the tractor becomes an integrated part of the agricultural production system and Precision Farming. The challenges in the future are not only in the economic and technological area.
Especially environmental and social aspects have to be considered as well, on the one hand to produce sufficient food and renewable raw materials and on the other hand to ensure sustainable farming. In this book, you will find the fundamentals of tractor technology, which have not really changed, but been enhanced over the years in a multitude of ways. An end to this trend is not in sight. Primarily the technology and layout of transaxles and hydraulics, combined with fatigue strength are covered in deep detail.
Besides the engine, the understanding of these technologies is mandatory for an optimal tractor design. The content deals with the global requirement from base tractors with Low Tech up to High Tech versions.
The author of this book has played a major role in my career. He hired me to work at his Institute of Agricultural Machinery at the Technical University of Munich; he taught me tractor technology and inspired my enthusiasm for tractors.
From this experience I know very well what it means to do a project like this. The first book has been with me throughout my time in the industry. After nearly 30 years in the tractor industry and nearly 20 years of responsibility for tractor engineering, I wholeheartedly supported an updated English tractor book on fundamentals with inputs and material from the industry. This new English edition of tractor design will be invaluably useful for agricultural engineering, but in particular for the whole tractor community.
With this book, knowledge and many years of experience on tractor technology will be maintained for present and future generations. It will be a set book for everyone dealing with tractors in one way or another.
There is nothing better. I congratulate Prof. Renius on this new international book and I am very thankful he made the effort to write it. I wish him and his book all the best and great success. Our roots. Experience that continues to produce. Kobelco Extended Warranty Program www. Benefits of the Kobelco. In Finland this means. Asche Research. With powers of up to hp, the new engines provide exceptional power and torque levels.
Information and Instructions This shop manual contains several sections each covering a specific group of wheel type tractors. The Tab Index on the preceding page can be used to locate the section pertaining. A Wide Span Tractor concept developed for efficient and environmental friendly farming It is wide and stable during field operations.
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