Blog — Lean Manufacturing Guides — factorycalc.io

What is takt time and why does it matter in lean manufacturing?

Takt time is the heartbeat of your production line. Learn what it means, how to calculate it, and why getting it right is the foundation of every lean improvement project.

OEE explained: Availability, Performance, and Quality

A complete breakdown of the three OEE factors, how to measure each one, and what world-class scores actually look like on the shop floor.

How to balance a production line in 5 steps

Line imbalance wastes capacity and creates bottlenecks. Here's a structured approach to redistributing work content and hitting 85%+ balance efficiency.

Little's Law: the formula every ops manager should know

WIP = Throughput × Lead Time. It sounds simple, but Little's Law unlocks deep insights about your production system that most managers overlook.

EPEI and supermarket sizing: reducing WIP without starving the line

Every Part Every Interval is the key to right-sizing your production schedule. Learn how to calculate EPEI and use it to set supermarket stock levels.

Takt time vs cycle time vs lead time — what's the difference?

Three terms that get confused constantly, each measuring something completely different. Learn what each one means, how to calculate it, and how finished goods strategy changes the picture.

What is PFEP? The simplified version

Plan For Every Part is the master reference document every lean facility needs — but few talk about. Learn what it is, what goes in it, and how it connects to kanban, EPEI, and takt time.

Best lean manufacturing books (a practitioner's reading list)

Five books I keep coming back to — on lean culture, standard work, continuous improvement, process design, and the science behind why lean works. With honest first-person takes on each one.