Mechanization
Mechanization replaced hand labor with machinery across industries.
Mechanization is the process of changing from working largely or exclusively by hand or with animals to doing that work with machinery. In an early engineering text, a machine is defined as being interposed between a moving power and the work to be done, for the purpose of adapting the one to the other. Mechanization includes the use of hand tools, but in modern usage implies machinery more complex than hand tools, such as devices that cause speed changes or changes to or from reciprocating to rotary motion using gears, pulleys, shafts, cams, and cranks.
- field
- Engineering, Economics
- known_for
- Transition from hand or animal labor to machine-based work
- related_concepts
- Automation, Prime movers, Powered machinery
- early_examples
- Water wheels (Roman period), Water-powered bellows (China, 31 AD)
- key_era
- Industrial Revolution (18th–19th centuries)
Lore & Background
Demand for metal parts led to the invention of many machine tools in the late 1700s until the mid-1800s. In the 1840s self acting machine tools were developed. Mechanized agriculture increased in the late eighteenth and early nineteenth centuries with horse drawn reapers and horse powered threshing machines. By the late nineteenth century steam power was applied to threshing and steam tractors appeared. In the early 20th century, machines developed the ability to perform more complex operations, such as the glass bottle making machine developed 1905, which replaced highly paid glass blowers and led to mass production.
Reader's Guide
Mechanization fundamentally transformed production, replacing hand methods with machinery in manufacturing, agriculture, mining, and construction. The shift from hand power to water, steam, and eventually electric motors allowed factories to operate at higher speeds and with greater flexibility. Unit drive, enabled by electrification, allowed individual machines to be powered by separate motors, improving factory layout and machine speeds. Mechanization also extended to military usage, where it refers to the use of tracked armored vehicles to move troops. A step beyond mechanization is automation, which uses closed loop systems with feedback from sensors. The efficiency of internal combustion engines (about 20%) and industrial electric motors (up to low 90% range) far exceeds that of human labor (1%–5.5%), highlighting the productivity gains of mechanization.
Did You Know?
- Water-powered bellows were used on blast furnaces in China in 31 AD.
- The glass bottle making machine developed in 1905 replaced highly paid glass blowers and child labor helpers.
- In military terminology, mechanized refers to ground units that can fight from vehicles, while motorized refers to units transported in unarmored vehicles.
Frequently Asked Questions
What is Mechanization?
Mechanization is the shift from performing work by hand or with animal strength toward using machines to do that work. In modern usage it goes beyond simple hand tools and involves more complex devices that alter speed or convert between reciprocating and rotary motion.
When did Mechanization become a defining force in industry?
The Industrial Revolution of the 18th and 19th centuries is the era most tightly associated with widespread mechanization. During that period, machine-based production largely supplanted hand labor across a broad range of sectors.
What are some of the earliest examples of Mechanization?
Roman-era water wheels and Chinese water-powered bellows dating to roughly 31 AD are frequently cited as early instances. Both already embodied the core principle of interposing a machine between a power source and the task it drives.
How does Mechanization differ from Automation?
Automation generally implies machines operating with little or no human intervention, while mechanization focuses on replacing manual or animal labor with powered machinery. The two are closely related concepts that both sit within the fields of engineering and economics.
What mechanical components are central to Mechanization?
Gears, pulleys, shafts, cams, and cranks are the classic elements used to change speed or convert between reciprocating and rotary motion. They function as the link between a prime mover and the work being performed, adapting one to the other.
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