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What causes weighing errors in forklift truck weighing systems?

What causes weighing errors in forklift weighing systems?

A pallet that is recorded as being too heavy today and too light tomorrow will quickly lead to discrepancies between the physical stock and the records. When this happens on a daily basis, these discrepancies continue to mount up.

09 November 2026

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A pallet loaded at an angle immediately causes discrepancies

Many companies immediately look to the weighing system itself for the cause, whilst weighing errors are often caused by factors during the logistics process. From pallets being picked up incorrectly to wear and tear on parts: even minor factors can affect the accuracy of a measurement.

One of the most common causes of weighing errors is a pallet that is not positioned correctly on the forks. In a busy warehouse, a pallet is sometimes picked up in a hurry, meaning it is not fully centred. Damaged pallets or loads that are heavier on one side can also cause problems.

The result is that the load is not distributed evenly across the forks. This can cause the system to record a weight different from the actual weight. These discrepancies can quickly add up, particularly with heavy or irregularly shaped loads.

Uneven floors affect the measurement more than many users realise

Warehouses are rarely completely level. Loading bays, levelling plates, damage to the floor and outdoor areas mean that forklift trucks are regularly positioned on a slight incline.

If a forklift truck is not stable during a measurement, the distribution of forces on the vehicle changes, and with it the conditions under which the weighing takes place. As a result, the same pallet may show a different weight at different locations. This problem occurs regularly, particularly in environments where there is a lot of driving both indoors and outdoors.

Wear and tear develops gradually and therefore often goes unnoticed

Many companies only check a weighing system once problems have already arisen. This is understandable, as wear and tear usually develops slowly. Sensors, hydraulic components and mechanical parts are subjected to shocks, vibrations and heavy loads on a daily basis.

As the deviations increase gradually, operators often do not immediately notice that accuracy is declining. It is only when stock discrepancies arise or transport documents no longer reflect reality that it becomes clear that measurement performance has changed.

Damage to sensors and cabling

Forklift trucks operate in an environment where equipment is exposed daily to dust, moisture, temperature fluctuations and physical stress. This can cause sensors to become damaged or cable connections to deteriorate.

Problems of this kind often do not cause a complete failure. It is precisely this that makes them difficult to detect. The system continues to function, but occasionally displays unexpected deviations. As a result, it may appear as though the problem occurs randomly, whilst the cause is in fact technical in nature.

Overloading can have lasting consequences

An occasional heavy pallet often seems to pose no problem. However, regularly exceeding the maximum capacity can affect the accuracy of a weighing system. Sensors are designed for a specific load. If this limit is repeatedly exceeded, it can affect measurement performance in the long term.

The damage is not always immediately visible. Often, the system continues to function, but its accuracy gradually declines. As a result, problems are only discovered once discrepancies have been occurring for some time.

Temperature differences also play a part

Many forklift trucks operate both indoors and outdoors. Temperature differences can be significant, particularly during cold winter months or hot summer days. These changing conditions affect various components of the vehicle and the weighing system.

Modern mobile weighing systems are designed to perform reliably under a wide range of conditions, but significant temperature fluctuations mean that regular checks and calibration remain necessary to maintain a high level of accuracy.

Weighing errors are rarely caused by a single factor

In practice, a weighing error cannot usually be traced back to a single problem. It is often the result of a combination of factors, such as wear and tear, a damaged pallet, an uneven floor or overdue calibration. This is precisely why it is important to look not only at the weighing system itself, but at the entire weighing process.

By regularly inspecting equipment, carrying out maintenance in a timely manner and ensuring operators follow standard operating procedures, the reliability of weight data is guaranteed. This prevents unnecessary stock discrepancies, incorrect shipments and inefficiencies within the logistics operation.

Do you want to minimise weighing errors as much as possible and ensure that your weight data remains reliable? With RAVAS’s mobile weighing systems, calibration services and maintenance solutions, you can minimise the risk of discrepancies caused by wear and tear, overloading, incorrect weighing conditions and other common causes of measurement errors. Our specialists will help you optimise your entire weighing process, ensuring that stock data remains accurate and logistics processes run smoothly. Please feel free to contact RAVAS for no-obligation advice and discover which solution best suits your situation.