aggregate batch machine for concrete mixing plant

Aggregate batching machine is mainly used to store and weigh aggregates, such as sand, stones, etc. According to the size of the aggregate size, there are 2-5 bins for you to choose.

HZS25-HZS50 adopts bucket batching machine. HZS60-HZS360 adopt belt type batching machine, which is more efficient.

In addition, mobile concrete mixing station is equipped with a dedicated batching machine, which is compact in design and is convenient for transfer.

The most common batching machines are shown in the figure below.

Question: what's the difference between (belt weighing 1) and (belt weighing 2) ?