No sheaves or belts on the Sumitomo drives means reduced maintenance time.

Collecting conveyors collect material from all bins.

All systems can accommodate options such as bar grizzlies.

The inclined conveyor incorporates a scalping screen to remove oversized material.

Belt Feeders Give You Precise Control

You can assure accurate mix formulas with Astec variable-speed belt feeders. They let you change the production rate while keeping the mix formula unchanged. Each feeder is powered by a variable speed motor with a Danfoss® controller and Sumitomo® right angle reducers. These drives provide precise control of belt speed.

Two Belt Feeder Choices

Select either the traditional flat idlers or the troughing idler. With the traditional design, the belt is fully supported by four-inch (10.16 cm) diameter rollers on five-inch (12.7 cm) centers to prevent deformation of the belt and material spillage. The troughing idler belt is supported on nine-inch (22.56 cm) centers.

Head pulleys on both are covered with rubberized traction material that makes firm contact and moves the belt without slippage.

Collecting Conveyor Under Bins

The collecting conveyor comes with the cold feed unit and runs under the belt feeders to collect material from all the bins. The tail section unbolts, then easily reattaches to the collecting conveyor extension when adding future bins. Its upturned end empties onto the scalping screen (if used) or onto the incline conveyor.

Inclined Conveyor Receives Material

Inclined conveyors with vulcanized rubber belts take the aggregate from the cold feed unit to the facility’s drum mixer. Depending upon your type of facility, the inclined conveyor will be either relocatable, stationary or portable.

Most often, the inclined conveyor incorporates a scalping screen at the front end. On portable units, a transfer conveyor is used as the deck selector on two deck screens. Pneumatically activated belt scrapers are standard on every Astec inclined conveyor.