How a Meat Factory Changed Car Manufacturing

Why It Matters

The innovation transformed manufacturing economics by enabling huge volume, lower unit costs, and standardized labor processes—paving the way for affordable cars and the modern industrial economy. Its principles underpin contemporary assembly-line and just-in-time production methods.

Summary

Ford’s move to assembly-line production originated not with Henry Ford but with engineer William Clan, who in 1913 borrowed the disassembly-line concept from Chicago meatpacking plants. By breaking work into simplified, repeatable tasks and arranging workers along a single flow instead of individual benches, Ford cut magneto assembly time from 20 to 13 minutes. Replacing the table with a constant-speed conveyor further synchronized the pace, boosting output from about 800 magnetos a day to nearly 3,000 within months. The experiment proved the viability of mass production for complex goods and set the template for modern automotive manufacturing.

Original Description

In the early days of car manufacturing, Henry Ford gets most of the credit for inventing the moving production line. But the real spark may have come from William Klann.

In 1913, Klann visited a meatpacking factory and noticed something revolutionary: instead of workers moving around the product, the product moved to the workers.

Back at Ford, they began experimenting with this idea - not on cars, but on something smaller: magnetos. They replaced long workbenches with a conveyor belt, forcing each stage of production into a strict sequence.

The effect was immediate. In just a month, output jumped from around 800 magnetos a day to nearly 3,000.