Production Routing – The Foundation of Cost and Process Control
Many companies treat process documentation as a necessary evil, while in reality a well-prepared production routing is the foundation of a profitable manufacturing plant.
Without it, it is difficult to talk about repeatability in production, consistently high quality, precise planning, or real cost control. In this article, I explain what a production routing is, what it should look like in a well-organized plant, and why it has a direct impact on financial performance.
Production Routing – What It Is and Why It Matters
What Is a Production Routing?
Let’s start with the basics: what exactly is a production routing?
Simply put, a production routing is an organized, chronological description of all operations that a raw material must go through to become a finished product. It can be described as a navigation system for production. Contrary to appearances, it is not just a simple list of steps. A production routing includes not only the sequence of operations, but also:
- workstations and machines,
- standard operation times (calculated or empirically measured),
- required resources (e.g. tools, fixtures) and employee qualifications (e.g. laboratory work when taking samples),
- quality control points,
- data required for reporting and cost settlement.
When Routing Stops Being an Option and Becomes a Necessity
In small-scale production, companies can rely on the memory of experienced employees. However, as production grows, routing stops being an optional solution and becomes an essential process map. Without it, repeatability, reliable planning, and cost control are hard to achieve.
If, in your manufacturing company:
- the number of orders is increasing,
- multiple product variants appear,
- production operates in shift mode,
- audits, traceability, and cost settlements become necessary,
- the lack of a well-designed production routing will quickly lead to delays, overproduction, and increased waste.
What Routing Should Be vs. What It Often Is in Practice
In a modern plant, routing should reflect the reality of the production floor. In many companies, however, it looks quite different:
- operation times are estimated “off the top of one’s head”,
- the routing has not been updated for years,
- operators do not use it on a daily basis,
- planners know that “it has to be worked around anyway”.
As you might guess, the results are – to put it mildly – poor. The system collects production data that differs from assumptions, and decisions are made based on numbers that have little to do with the real process.
The Most Common Mistakes and Myths Around Routing
The most frequent problems include:
- treating routing as a document “for the system”,
- lack of operator involvement in its creation,
- the belief that once defined, routing never changes.
A warning sign is a situation where everyone performs the process “their own way” while still expecting repeatable results.
Review Your Production Routings in Practice
If you want to find out why your routings do not support production or learn how to integrate them with ERP and MES, contact us today.
Routing vs. Production Floor Reality
One of the most common issues is the discrepancy between what is written in the routing and what operators actually do. The reasons are usually straightforward:
- routing does not account for real changeover times,
- standard times were never measured,
- lack of standardized work at workstations.
The consequences can be severe. If standard times are unrealistic, planners cannot create a reliable schedule, which leads to order delays.
Poorly designed routing also increases production scrap. Without standardization, operators act intuitively. When a process is chaotic, it becomes much harder to determine where an error occurred and how to eliminate it.
Working with outdated routings results in real money “leaking away”. Consider a dairy processing plant.
If the yogurt fermentation process is extended by 2 hours, energy and labor costs increase. This may result from the need to re-sterilize packaging machines and blocked production capacity. A batch that was supposed to cost PLN 1,000 suddenly costs PLN 1,100.
Production routing allows such deviations to be identified and properly accounted for in the ERP system.
Even worse, in such cases it is often difficult to pinpoint exactly where the problem occurred and how to eliminate it.
Lack of Routing Updates
Operation times are one of the most critical elements of routing. In many companies, they are defined once and then forgotten for years. Meanwhile, reality changes:
- raw materials change,
- technology evolves,
- work organization changes.
The difference between standard and actual time can be significant. If the system “believes” outdated data, planning and cost settlement quickly fall apart. That is why routings should be updated regularly, based on historical production data rather than purely technological assumptions.
Traceability and Quality – Routing as a Digital Product Footprint
A good routing is also the foundation of traceability – full product identification. By documenting parameters, times, and specific machines, a “digital DNA” of each batch is created.
Each process stage is recorded, which:
- simplifies audits – all documentation and proof of compliance are in one place,
- speeds up complaint analysis – defective batches can be identified instantly,
- helps quickly identify the source of problems – whether caused by incorrect parameters or human error.
Routing and Production Planning & Scheduling
A well-prepared routing is the basis for planning. A planner with accurate routings can:
- realistically assess production capacity,
- respond faster to disruptions,
- manage job sequencing more effectively.
Incorrect routing, on the other hand, makes schedules look good only on paper. In reality, deadlines slip and production shifts into firefighting mode.
Production Routing and IT Systems – ERP and MES
In ERP systems, routing is the basis for planning, cost calculation, and settlement. MES systems go one level deeper, recording actual operation execution, times, downtime, and deviations.
The greatest value comes from combining both worlds. Execution data flows back into the routing, allowing continuous correction and improvement. Routing stops being a static document and starts living together with production. Importantly, it also enables more accurate product cost calculation. When times, resources, and energy consumption are measured rather than estimated, costs no longer “leak” unnoticed.
Best Practices – How to Organize Routing in a Plant
Improving routing should start with simple steps:
- measure actual operation times,
- involve operators and technologists,
- start with processes generating the highest losses.
The greatest impact comes from cross-department collaboration. Routing is a shared tool for the entire organization. Avoid silos where technologists, planners, and operators do not exchange information. Operators often know best why a process takes longer than the standard.
Effective methods include workshops (e.g. SMED), where video recordings of workstation activities are analyzed. When employees participate in optimization and routing creation, they follow standards more willingly because they feel like co-authors of the process.
Remember – routing must be updated. A component change, a new machine, or even a temperature adjustment in the process should trigger documentation review. Every optimization that shortens operation time by a few minutes can generate substantial annual savings that can be reinvested in further development.
Production Routing – An Example from the Food Industry
To better understand the concept, let’s look at the food industry – specifically yogurt production. Production routing shows that the process starts at raw material intake:
- Raw material intake (tanker unloading and milk pumping into tanks) and batch number assignment.
- Standardization and pasteurization, considering the operating cycle – standard time must include not only nominal device capacity (e.g. 10,000 l/h) but also startup and product push-out times (entry and exit phases on the pasteurizer).
- Fermentation – adding bacterial cultures and acidification. This stage can vary in duration. While the standard may assume 7 hours, actual time depends on bacterial activity and may reach, for example, 8.5 hours.
- Packaging on the machine and transfer to the finished goods warehouse.
Each stage must be recorded to ensure full control over production execution.
For example, if fermentation lasts longer than planned, energy consumption and unit cost increase. Without reliable routing, this is difficult to detect and even harder to correct.
Production routing is like a recipe in a good restaurant – even the best chef needs a standard to ensure every dish tastes the same and does not ruin the business with excessive costs. Without precise instructions and time control, production becomes improvisation, which rarely ends in profit. Companies that treat routing seriously identify problems faster and solve them more effectively. Where routing is only a formality, production sooner or later pays for it with real losses.
Organize your routings and regain control over production
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