Easiweigh Limited designs, manufactures and markets high quality automatic weighing equipment for the food
1. Precision loadcell weighing mechanism (Maintenance free)
AES * 5456 Louie Lane * Reno NV 89511 * tel: (775) 852-1114 * fax: (775) 852-1163 * e-mail: firstname.lastname@example.org
Basic Overview of How Automatic Weighing Machines Function
The entire range of Easiweigh weighing machines have the same basic mode of operation.
Naturally, the format, style, size and specification may differ to suit different products, weights and
speed requirements, the basic principles are valid throughout.
The easiest way to understand what the machines do is to compare them with the method of
weighing product, by hand, using a set of static scales. Taking a simple example of weighing an
ingredient necessary for baking a cake what are the basic requirements?
Some means of weighing - in this case a set of simple kitchen scale will suffice.
(We could call this the "weighing system").
Some means of getting the flour from its large packet into the cake mixing bowl - for this purpose
a large spoon or scoop will do. (We call this the "product feed").
Someone to carry out the weighing (Let’s call this the "control system").
The product you wish to put in the cake - (Let’s assume that this is flour)
1. First you make sure that with no product on the scales (weighpan) the displayed weight is
equal to zero - if not adjust it or make a note of the reading and make an allowance for the
required weight (target weight).
2.You then open the large bag of flour (bulk product)
3.Taking the spoon or scoop you transfer the product from the bulk to the scale pan as quickly as
possible (bulk feed) keeping an eye on the scale display.
4.When the displayed weight nears the target you then slowly trickle flour from the spoon (fine
feed) until the desired weight is displayed.
5.The scale pan is then removed and the contents tipped into the mixing bowl (discharge).
For all intensive purposes this is precisely what an automatic weighing machine does. Product
is placed into a holding hopper and is then fed automatically, at a fast speed, into a pan that is
attached to a weighing mechanism until the target weight is almost reached at which point the
feed rate slows to a trickle. On achieving the required weight feed stops altogether and, after
checking that the weight is correct, the weighed product is released into a waiting container.