Counting scales look at the weight of the items you place on the weighing platform and divide the weight by the number of pieces you entered, to compute the average piece weight (APW). This is how a digital counting scale displays the number of pieces or parts. No digital counting scale will ever work though if there is a significant variation in the weight of the individual items you place on the scale. The larger the initial sample (100 pieces versus 5 pieces) the better results the counting scale can provide since it averages out any variations in the piece weights over a larger number of items.

So, how do you know which counting scale is best for you? First, find a model that meets your capacity and accuracy requirements (remember the least amount of capacity you can handle is better). Next, look at the features required for your applications (both now and in the future) such as computer/printer interfacing capability, battery operation, ability to connect a larger platform scale (remote scale), etc…

When it comes time to purchase or rent a digital parts counting scale for inventory, you need to contact a scale company that has been selling and servicing scales and understands the products.  A good choice would be Central Carolina Scale in Sanford NC.  They've been selling and renting counting scales for almost 30 years.