In an asphalt making industry, cold feed bins are considered to be the easiest to be damaged because of abrasive aggregates and higher lifting operations wherein the buckets are slammed in the bins’ sides. So it is important for these bins that it is made from the combination of the rugged construction and optimum durability equipped with proven controllers. The bins should be built from heavy duty steel plates with durable columns and end bracing. Take note that the sides and end walls should be made at variable angles and the discharge transitions are tapered steeply enough in order for even aggregate flow. For a complete control of the flow, radial gates are usually used. The feeder is separately controlled by a motor with accuracy and precision. The collector belt is driven by an AC motor and should be at least be rated at 450 tph capacities. There are many sizes available, up to 28 bins.

Aside from the above, the bins should be large enough to hold more capacity and better accuracy for a number of different mixes. It is better if it requires minimal assembly on site and can be retrofitted to any old cold feed system with good control system. Build up must be prevented so the belt design is important. Lastly, the system must be durable enough to hold for a long period of usage time.