BWH Apron feeder

Dsmac is a leader in the design and manufacture of heavy duty apron feeders for the mining and process industries. BWH apron feeders are recognised throughout the industry for their robust design, durability, reliability and low maintenance requirements. 

Our apron feeders operate in applications such as iron ore, coal, gold, mineral sands and diamond recovery in Australia, South America, Europe, North America, Asia and Africa.

Main customer benefits of Apron feeder

Long life, low maintenance and reduced operating costs.

Proven heavy duty design.

Tailored feeder selection designed to suit each application and capacity.

A broad range of models varying in width and length.

Long life because of impact and wear resistance.

Cast manganese steel-ribbed flights.

Special purpose flights also available.

Reduces costly truck waiting time.

Correct feeder selection matches plant hopper capacity to dump truck capacity.

Simple to maintain the correct chain tension.

Hydraulic chain tension adjustment is standard. Manualoption chain tension adjustment

Ideal for feeding crushers

The raw materials from the quarry are dumped directly into a reinforced feed hopper and extracted by the BWH apron feeder. The coarse granular or fragmented run-of-mine materials often contain large pieces of hard limestone rock. The BWH apron feeder ensures a steady flow of material to the next stage of the process, typically a crushing plant.BWH apron feeders come in different sizes dimensioned to feed even the largest crushers 

How it works

The raw materials from the quarry are dumped directly into a reinforced feed hopper and extracted by the BWH apron feeder. The BWH apron feeder ensures a steady flow of material to the next stage of the process, typically a crushing plant.

Maintenance

Worn aprons and chains can be accessed from the takeup end of the feeder for easy replacement. The sprocket wheels have boltedon tooth segments which can be interchanged or replaced. The impact rollers are lubricated by a central lubrication unit, while the chain rollers have to be lubricated manually with a grease gun

Delivery tailored to site conditions

The feeder comes with a trough, a discharge casing and a chain scraper. The feeder can be installed horizontally or at an incline.Depending on its size the feeder is either pre-assembled in the workshop and transported to the construction site as major components or it is delivered as one complete unit.The type designation of the apron feeder, for example BWH 2800 x 12, indicates its nominal width in mm and length in metres. Widths range from 1000 mm to 2800 mm based on various lengths.

Head shaft and sprockets

Segmental hardened steel sprockets are machined at the mounting interface with the  sprocket hubs. The hubs are keyed to the drive shaft.

Sprockets incorporate a hunting tooth design which have the effect of increasing the life of the sprockets.

The segmented sprockets can be easily reversed for increased life.

Head shafts are high-strength steel and sized to suit the load requirements. The head shafts are fully machined to take bearings, sprocket hubs, seals and the drive. The drive may be located on either side of the feeder. Twin drivescan be supplied when required.

Return rollers

The return rollers support the return-strand of the flights and chain. Each roller is a  modified crawler tractor carrier roller, with lifetime lubricated seals. Each roller is supported by a bracket which is bolted to the main frame for ease of removal and installation. Inspection ports located in the main beams in close proximity to the Return Rollers offer visual inspection of Rollers condition and wear, without disturbing any components

Carrier rollers

The carrier rollers are closely spaced, standard tractor components. They are designed  and manufactured for long wear and maintenance-free service. Features include lifetime-lubricated fully sealed bearings, a hardened and ground shaft fitted with a central thrust shoulder, and hardened rollers.