Smart Factory

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Smart Factory: meaning, examples and first steps for machine shops

A Smart Factory is a factory in which machines, jobs and people exchange their data automatically. What that means for a shop with CNC machines, and where to start.

Updated: 11 October 2026

What does Smart Factory mean?

A Smart Factory is a production site in which machines, software and people are connected. Data is created automatically at the machine and is available right away where someone makes a decision. The factory reports by itself what is running, what is stopped and why. Nobody has to write it down at the end of the shift.

Smart Factory is also the name of our company. This article is about the general term.

Where the term comes from

The term is older than Industry 4.0. As early as 1991, the American trade magazine AI Expert ran a piece titled “Smart factory layout”.[1] In Germany the term is closely tied to Kaiserslautern. There, seven partners, among them the German Research Center for Artificial Intelligence (DFKI), founded the association Technologie-Initiative SmartFactory KL in 2005. The aim was to show the Smart Factory of the future in a real production line.[2] Its founder was Prof. Detlef Zühlke.[3]

Six years later, the Industrie 4.0 concept was presented to the general public for the first time at Hannover Messe 2011.[4] Industrie 4.0 describes connecting the whole value chain. The Smart Factory describes what that looks like inside one factory.

Smart Factory, Industry 4.0 and machine monitoring

  • Industry 4.0: the overall concept for connected production, across company boundaries.
  • Smart Factory: one factory where that concept is put into practice.
  • Machine monitoring and production data collection: the tools that deliver the data. Without them, the Smart Factory stays a picture on a slide.

Five examples from machining

1. Machine status live

Every machine reports by itself whether it is machining a workpiece, changing a workpiece, being set up or stopped. The shop floor manager sees that on a tablet, phone or a screen on the shop floor, instead of walking around.

2. Metrics without tally sheets

Active time, setup time, workpiece change time and part counts come straight from the control. Metrics such as utilization and OEE follow without manual work. How to calculate OEE is explained in How to calculate OEE in machining.

3. Measuring setup times instead of guessing

How long the setup for a job really took is known once the job is done. With those values, the next quote gets more accurate.

4. Tool data without retyping

The tool presetter sends length and radius straight to the tool table of the control, over the network or through a data carrier on the tool holder. Nobody retypes numbers, and typing errors disappear.

5. Lights-out shift with an overview

A pallet system or robot loads the machine at night. In the morning, the history shows when the machine stopped and for how long. That shows whether the night shift paid off.

What a small shop can do today

Smart Factory sounds like a large corporation, a robot cell and a budget of millions. For a shop with five to fifty machines it starts smaller: with the question of how many hours the spindles really run. Without measuring, that number stays a guess.

Controls from Heidenhain, Siemens, Fanuc, Haas, Mazak and Okuma can be read over the network. You need no sensors on the machine for that. New machines often come with an OPC UA interface. With umati there is a shared language for machine tools.[5]

First steps

  1. Measure before you plan. How many hours do the machines run, how long do setups take, why do machines stop?
  2. Collect automatically, not by hand. Handwritten lists rarely capture short interruptions, and those are the ones that add up.
  3. Make it visible where the work happens. A screen on the shop floor and the tablet of the shop floor manager.
  4. Pick one metric and follow it for four weeks, for example utilization or OEE.
  5. Only then connect: feedback to the ERP, scheduling, automation.

Common mistakes

  • Starting with a large platform instead of a concrete question.
  • Collecting data nobody looks at.
  • Leaving operators out. People who do not understand the numbers distrust them.
  • Comparing metrics that are defined differently. This happens a lot with OEE.

Frequently asked questions

What is the difference between a Smart Factory and Industry 4.0?

Industry 4.0 is the overall concept for connected production. A Smart Factory is a single factory where that concept is put into practice.

Does a Smart Factory need new machines?

No. Many CNC controls can be read over the network. The usual start is collecting status, times and part counts automatically on the machines you already have.

Where should a small shop start?

With measuring: how long do the machines run, how long do setups take, why do they stop? Only with those numbers does planning further steps pay off.

Is Smart Factory also a company name?

Yes. Smart Factory B.V. from Haaksbergen in the Netherlands develops machine monitoring software for CNC shops. This article is about the general term.

About Smart Factory

Smart Factory reads the status of every machine (Active, Change, Setup or Not Productive) and the part count straight from the CNC control and shows them live on phone, tablet, PC and smart TV. More: Smart Factory and Pricing.

Sources

  1. Justin Kestelyn: Smart factory layout. AI Expert, vol. 6, no. 1, 1991, p. 72 (ACM Digital Library)
  2. DFKI: 15 Jahre SmartFactory Kaiserslautern (17.09.2020)
  3. SmartFactory-KL: Über uns
  4. acatech: Industrie 4.0 feiert 10-jähriges Jubiläum (12.04.2021)
  5. umati: About

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