Belt and Apron Feeders
Various models with a wide range of tonnage rates available. Please contact us for further information.
Delta offer a complete range of heavy duty Apron Feeders designed for the most intense conditions.
Deltas Apron Feeders can be designed and manufactured to suit specific requirements and
include features such as sealed tractor chain and support rollers, SD/TH spherical roller bearing
housings and impact rails where applicable.
Apron Feeders are custom designed for each application. They can be either hydraulically
driven via a hydraulic motor, torque arm, and power pack or alternatively by a motor driven
Delta Apron Feeders are built in various sizes and with a wide variety of components, to handle
different types of materials. The cost can vary depending on our clients requirements.
Factors such as the characteristics of material carried, capacity, length, method of feeder
loading, degree of lift, hopper opening, pan construction and type of drive are considered.
The drive sprocket is designed with an odd number of teeth and half tooth type to
ensure contact occurs on every second revolution. In this way the design life of the
sprockets is increased.
Support rollers are designed heavy duty and are lubricated for life. The strength and
fatigue characteristics that they exhibit are excellent as they are heat treated and
therefore can absorb the impact loading present during operation. Support rollers are
closely spaced to maintain a controlled and rigid operation.
Pans are manufactured from an austenitic steel (heat treated) and incorporate a high
percentage of manganese. Manganese is added to the austenitic steel as a high proportion thus allowing the
pans to exhibit material qualities which are required for the application, i.e. high hardness, strength,
malleability and toughness. Due to normal steels gaining in brittleness when hardened, manganese austenitic
steels do not, and therefore have the very important material qualities of toughness and hardness to absorb the
impact loading and abrasive nature of the material and application. Steel pans are used where the extreme impact
and abrasive nature of operation is not present.
Depending on pan width, the inclusion of support member may be required. This support member is designed so
that it minimizes deflection within the elastic limit of the pan material and therefore save the pan from permanent
Heavy fabricated base frame is designed to incorporate custom requirements which may include walkways, access to
certain points, and certain maintenance and lifting restrictions present for the machine on site. While at the same time
the base frame is designed to be able to withstand loads during operation in terms of strength and fatigue.
Heavy duty crawler chain is used and therefore being able to withstand the high impact and abrasive loads that are
present during operation. The chain includes links, pins and bushings which are all heat treated for improved strength
The drive can be either a direct hydraulic motor or via a planetary gearbox, depending on the size required from
loading. Hydraulic motor will require a hydraulic power unit which can be supplied upon request. Drive control can
be supplied as either constant speed or variable speed (by way of incorporating a VSD).