Valve type bags are filled with a tube inserted in a small opening (valve) on the top corner of the bag. After filling, this valve then is closed, sealing the bag. One advantage of using a valve type bag is that they do not require a bag sewing machine or bag sealer to close the bag. There are three styles... Read more
Year: 2020
Open Mouth vs Valve Type Bags
There are two types of bags: open mouth and valve type. Open mouth bags are open across the top and require some method to close the top. Valve-type bags have a corner opening that is used for filling. Open Mouth Bags: Depending on the bag’s material, open mouth bags are either sewen closed or heat sealed. Open mouth bags made... Read more
Is My Bagging Scale Weight Certified?
While equipment that fills bags with product can be very accurate (i.e. +/- 0.5%), they are not weight certifiable for products for sale. This is because: (1) the product is moving while it is being weighed and (2) the bag filling equipment has moving parts that can wear or be adjusted. The bag filler is not a fixed, stable platform... Read more
What Size Supply Hopper Do I Need?
The supply hopper sits on top of your bagging scale. The size of the supply hopper determines how many bags you can fill before you have to replenish it. Incline feed conveyors are often used to fill your supply hopper from a blender, dryer, super sack, or silo. Depending on your product, feed conveyors may be cleated belt, auger, vacuum,... Read more
How to Choose the Right Spout for Bagging Scales
To fill a bag, bagging scales need a spout that fits inside the bag. The spout is determined by the application, the size of the bag, and the material of the bag. Types: There are 2 basic types of spouts for open mouth bags: non-clamp and clamp. Non-Clamping Spouts The non-clamp spout is a simple tapered funnel where the bag... Read more