Shipping and receiving requires a method of accurately weighing materials. Parcel shipping often uses bench scales for this purpose. These scales may have capacities of up to 150 lb, which generally matches the weight limitations of many parcel carriers. Cartons and boxes are placed on a scale platform, and a digital indicator can accurately display the weight. Mounting the indicator on a movable arm is often convenient, so that the parcel on the platform will not obstruct the view of the user. The size of the platform should be small enough so that it does not use too much space on the bench, but large enough to handle most parcels.
While bench scales are accurate instruments, it is also important that they be constructed rugged enough to withstand general industrial use. The component of the scale that converts the weight into an electrical signal is called a load cell. Many general use scales incorporate aluminum load cells. For those applications that may sustain more demanding use, it may be advisable to select a scale with stainless steel load cells. This will provide a significant improvement in resistance to shock load and overload. Mechanical overload stops can also be built into the scale base. This will also contribute to the overall ruggedness of the scale.
Bench Scales
Shipping and receiving requires a method of accurately weighing materials. Parcel shipping often uses bench scales for this purpose. These scales may have capacities of up to 150 lb, which generally matches the weight limitations of many parcel carriers. Cartons and boxes are placed on a scale platform, and a digital indicator can accurately display the weight. Mounting the indicator on a movable arm is often convenient, so that the parcel on the platform will not obstruct the view of the user. The size of the platform should be small enough so that it does not use too much space on the bench, but large enough to handle most parcels.
While bench scales are accurate instruments, it is also important that they be constructed rugged enough to withstand general industrial use. The component of the scale that converts the weight into an electrical signal is called a load cell. Many general use scales incorporate aluminum load cells. For those applications that may sustain more demanding use, it may be advisable to select a scale with stainless steel load cells. This will provide a significant improvement in resistance to shock load and overload. Mechanical overload stops can also be built into the scale base. This will also contribute to the overall ruggedness of the scale.