Push vs. Pull Production: Why Pull Wins in Lean Manufacturing
+ 2 Quotes and 1 Quiz to kindle your thoughts
1 Article for the Week:
In manufacturing, Push Production and Pull Production represent contrasting strategies for managing workflow. By examining their differences and highlighting real-world examples, it’s clear why Pull Production often outperforms Push in lean environments.
Push Production relies on forecasts or schedules, producing goods ahead of demand and pushing them through the system. For example, a furniture factory might predict holiday sales and produce 500 tables in October, storing them in a warehouse. If demand falls short—say, only 300 tables sell—the excess 200 tie up capital, occupy space, and risk damage or obsolescence. Push systems are rigid; unexpected demand spikes can cause shortages, while overproduction leads to waste, longer lead times, and cluttered shop floors.
Pull Production, conversely, is triggered by actual demand from downstream processes or customers. Production only occurs when signaled, often via Kanban. Consider Toyota’s assembly line: a car door is only welded when the assembly team pulls doors from a supermarket, signaling the welding station to replenish just what’s needed. This keeps work-in-progress (WIP) minimal, reduces storage, and adjusts instantly to demand changes, ensuring efficiency and flexibility.
Why Pull Production is Better: Pull systems sync production with real-time needs, eliminating overproduction—a key lean waste. For example, Dell’s build-to-order model uses Pull, assembling computers only after customer orders, avoiding unsold stock and enabling customization. This cuts inventory costs, frees up factory space, and boosts responsiveness compared to a Push-based competitor stockpiling pre-built PCs. Pull also exposes inefficiencies—like bottlenecks or defects—for quick resolution, unlike Push, where excess inventory can hide problems. By aligning output with demand, Pull delivers cost savings, agility, and leaner operations, making it the superior choice for modern manufacturing.
Which one of these systems is followed in your factory? Push or Pull ? Please share in the comments.
2 Quotes on Team Work:
“Manufacturing is a team sport. No one person can do it all—success comes from every worker, engineer, and manager pulling together to make something great.” – James Dyson, founder of Dyson Ltd.
“The strength of a manufacturing operation lies in the teamwork on the shop floor. When everyone collaborates to solve problems, you don’t just build products—you build progress.” – Cynthia Fanning, GE Appliances.
1 Quiz for the Week:
Which quality management tool is used to identify the root cause of a defect by repeatedly asking "Why" until the underlying issue is uncovered?
a) Pareto Chart
b) Control Chart
c) 5 Whys
d) Fishbone Diagram
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Congratulations Mr. Mukunthan Parasu for sharing the correct answer for the last week’s quiz.
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5 Whys
The example of Dell is also in the method of production, where they follow modular manufacturing and are hence able to meet customized orders at very short notice.
c) 5 Whys