Light manufacturing businesses often encounter systems that are much heavier than their needs when it comes to production software. Work orders, capacity planning, and routing definitions create unnecessary complexity for most workshops.
However, the real need is much simpler: raw materials dropping correctly, finished goods entering properly, and the material in the workshop being visible.
In this article, we explained how to establish inventory flow in light manufacturing, the workshop warehouse, work-in-progress tracking, and control routines.
Table of contents
What is light manufacturing?
Light manufacturing is a form of production consisting of a limited number of steps, usually completed in a short time. Assembly, packaging, and simple processing fall into this scope.
Its difference from heavy industry is that the process complexity is low. A finished product is usually completed in a single day.
Therefore, detailed capacity planning and routing definitions are not needed. These tools create a burden rather than a benefit.
What is needed is the correct inventory movement and realistic cost calculation. It is enough for the system to provide these two.
Operationsin the production moduleare carried out and work integrated with the inventory side.
Basic inventory flow
Inventory flow in light manufacturing consists of three steps, and this simplicity must be maintained.
The first step is transferring the material from the main warehouse to the workshop. This is done with a transfer slip and makes the quantity in the workshop visible.
The second step is the realization of production and the issuance of the production slip. Raw materials are deducted from the workshop warehouse, and finished goods are entered.
The third step is transferring the finished good to the finished goods warehouse or directly to the shipping area.
When these three steps work properly, no additional planning layer is needed.Production slipyou can check out the article.
Workshop warehouse
The workshop warehouse is the definition that separates the material in the production area from the main warehouse and is the most useful setup for light manufacturing.
Without this distinction, it is not realized that some of the material visible in the main warehouse is actually in the workshop.
The result is that material thought to be salable has actually been used. This directly misleads order decisions.
The quantity transferred to the workshop should be kept close to the production plan. Excessive transfer creates uncontrolled stock accumulation in the workshop.
The use of transfer slipstransfer slipwe covered in the article.
Semi-finished product tracking
A semi-finished product is a product that has completed a stage of production but has not yet turned into a finished good.
In light manufacturing, every semi-finished product does not need to be tracked separately. This additional load is meaningless for short-lived stages.
However, if the semi-finished product is being stored or used in other finished goods, a stock card must be created.
In this case, two separate production slips are issued; first, the semi-finished product is produced, then it turns into the finished good.
The decision criterion is simple: if the semi-finished product is waiting, it should be tracked; if it is consumed immediately, it should not be tracked.
Reducing the recording load
In a workshop environment, the recording load directly determines whether the system will be adopted or not.
Having a correctly defined recipe is the greatest convenience. Consumption lines come automatically and only differences are corrected.
Ready-made templates for frequently produced items also save time.
The recording screen needs to be simple; long forms are not filled out in the workshop.
Registration by scanning barcodes significantly reduces manual entry errors as well.
Waste and rework
In light manufacturing, waste is generally low; however, when unrecorded, it still generates inventory discrepancy.
Some incorrectly produced items can be salvaged through rework. This process also requires recording.
During rework, additional material consumption occurs, which increases costs.
Products that cannot be salvaged must be recorded as scrap. The cost of these is reflected in good production.
Monitoring the rework rate provides an early indication of quality issues.
Workshop counting
The workshop warehouse is where inventory discrepancies accumulate the fastest and requires regular counting.
Counting frequency should be higher than that of the main warehouse. Weekly or bi-weekly counts are suitable for most workshops.
Counting yields the most accurate results when performed in the morning before production begins.
When a discrepancy arises, unrecorded waste and missing production slips should be checked first.
We explained the counting method in the warehouse count article.
Make-to-order production
A significant portion of light manufacturing works on a make-to-order basis rather than for stock. This simplifies planning.
When an order is received, the required materials are calculated from the bill of materials and compared with current stock.
If there are missing materials, purchasing is triggered. When this connection is not established, production ends up waiting for materials.
When production is completed, the finished product can be directly linked to the order and shipment preparation begins.
We covered this workflow in the raw material requirement and purchasing connection article.
Weekly control routine
A short weekly control is the most practical way to maintain high data quality in light manufacturing.
First, materials that fall into the negative are checked. These indicate missing entries or incorrect consumption records.
Then, the balance in the workshop warehouse is reviewed. Higher than expected quantities indicate over-transfer.
Next, differences between the bill of materials and actual consumption are examined; continuous discrepancies require a bill of materials update.
Finally, the scrap rate is read; an upward trend indicates quality or material issues early on.
Points to consider
The most common mistake is setting up the system more complex than needed. Unused fields ruin recording discipline from the start.
The second common mistake is not defining the workshop warehouse. Without this distinction, material visibility cannot be achieved.
Issuing production slips in bulk and late also lowers data quality.
Trying to track semi-finished products unnecessarily multiplies the recording load.
A simply structured and regularly used system is always more valuable than a comprehensive but unused system.
Frequently asked questions
Is it mandatory to define a work order?
It is not mandatory in light manufacturing; production slips provide sufficient records in most scenarios.
Can capacity planning be done?
Detailed capacity planning is out of scope; we evaluate your needs together during the setup phase.
Is a workshop warehouse mandatory?
It is not mandatory; however, it is strongly recommended for material visibility.
How are subcontracted works tracked?
A separate workflow is required; you can check the subcontracted production tracking article.
The right approach in light manufacturing is to set up the system just as much as needed. Heavy planning tools generate friction rather than benefit in most workshops.
Be sure to define the workshop warehouse; this single step makes the biggest difference in material visibility.
Also, issue production slips daily. Bulk and late recording disrupt both inventory data and cost calculations.
Track semi-finished products only if you are actually waiting for them; recording every stage unnecessarily multiplies the recording load.
Establish a weekly short check-in routine as well; when differences are caught while they are small, solutions are easy.
By consulting with the EQLEM team you can plan your production workflow.