When choosing a packaging scale, in addition to considering your actual needs, you must also consider the industry situation.

Choosing a quantitative packaging scale is a headache for non-professionals, but facing many manufacturers on the market, they have no idea and may even fall into wrong ideas. I have been engaged in the packaging scale industry for more than ten years. Some units always hope that the higher the accuracy, the better the speed, and the wider the weight specification range when choosing a packaging scale. Especially when encountering inexperienced sales staff, they will be obedient without any bottom line, resulting in the purchase of an unsuitable or unusable machine. When choosing a packaging scale, in addition to considering your actual needs, you must also share your insights based on years of industry practical experience.
According to personal circumstances, clarify the basic packaging requirements.
First of all, you must have a certain understanding of the properties of your own materials, whether it is granular, powdered, or special materials, as well as basic properties such as particle size, material density, fluidity, material packaging specifications, bag size, etc.
Seam form.
Measuring requirements:
Weighing accuracy requirements
The common accuracy level of packaging scales is ±(0.2%), which belongs to proportional quantification. For example, the accuracy requirements for weighing 5 kg and 50 kg are different. Through the accuracy level comparison table, it is easy to calculate the error range that the packaging scale can achieve. Of course, there are reference materials for accuracy. For example, the accuracy of the same packaging scale for packaging flour and stone powder is absolutely different.
Material measurement accuracy
As mentioned above, the actual weighing accuracy of the packaging scale is closely related to the nature of the packaging material, the packaging weight specification, and the packaging speed, so the actual significance of the measured accuracy is more credible.
Weighing range
Regarding the weighing range, the impact is actually quite large. The weight range is not only related to the volume of the metering device, but also to the small metering accuracy caused by the increase in the deadweight of the metering device. At the same time, the size of the bag clamping mechanism also needs to be considered for future operation.
Mechanical structure selection
The structural requirements are to select the appropriate model according to the accuracy, speed, and weight specifications of different materials, including the feeding mechanism, weighing bearing structure, and the functions and design methods of the bag clamping device, bag unloading device, sealing conveying device, and dust removal device. For example, granular materials are generally fed by gravity flow gates. If the accuracy requirement is high, gravity flow gates can be selected to feed with vibration feeding. Of course, flexible configuration is also necessary. For example, for small packages below 5 kg, large and small vibration feeding methods can be used. Choose a single scale or a double scale according to the packaging speed requirements. By clarifying the above points and the structural requirements, the comparison range of models can be narrowed and the final suitable model can be locked.

Some suggestions for users who purchase quantitative packaging scales:
Through the above analysis, it can be concluded that when purchasing quantitative packaging scales, we should adopt a pragmatic attitude, based on our own needs, and not blindly pursue high indicators. Therefore, it is recommended that users of quantitative packaging scales reasonably choose products that meet national product standards and metrological verification procedures. In order to improve the convenience, accuracy and speed of packaging scales in actual use, it is necessary to consider reducing the weighing range of the scale.
For places that require fast weighing speed, appropriate measures should be taken to reduce the weighing accuracy and narrow the weighing range on the premise of meeting the contract requirements of both parties of supply and demand, or meeting national and industry standards.
For quantitative packaging scales that require a wide weighing range, you may consider lowering the requirements for weighing speed and accuracy appropriately. From the perspective of protecting the buyer's interests, in addition to specifying the requirements for quantitative packaging scales in the purchase contract, the buyer should also carefully check the content marked on the product nameplate when using the quantitative packaging scale.