INCLINE CONVEYOR BELTS

 

Incline Conveying Considerations

The highest angle that a smooth troughed conveyor belt can carry a bulk load depends upon several variables. The type and size of the material will determine the coefficent of friction with the belt surface and roll back characteristics. Loading at the speed and in the direction of belt travel will maximize carrying ability. A concave conveyor, loading on the horizontal before the incline will further enhance the carrying efficiency. The results of any specific application can only be estimated based on experience. Further, a change in loading conditions or environment may cause a previously working system to fail.

Smooth belts on inclines reach their limitations very quickly. The most common solution to achieving predictable performance is to use a cleated conveyor belt. However, a cleated belt immediately presents new challenges. Belt scrapers, of course, can not be used and "product carry back" on the return side can be a problem. The belt return method must accommodate the cleats and cleats may require an edge recess to allow for skirting. Finally, cleats are susceptible to damage or being torn off should any overloading or jam up occur.

When a belt needs only minimum assistance to carry its load, factory molded "slittable" patterns are available, usually 1/4" high and in a staggered pattern of 6" wide "V" cleats like the two belts being installed in the above left photo.

Belts manufactured with cleats over 1/4" high like the above right photo are custom made by belt fabricators who vulcanize cleats, V-guides and sidewalls to previously cured flat base belt. However, a few manufacturers are making high incline cleated belts by curing the base belt and the cleats of compatible rubber in a single cure which results in a homgeneous cover and cleat with less heat degradation to the fabric. The number of patterns available; cleat profile, height, spacing, notching and accessories is infinite.

Read about our problem solving Heavy Duty CI X SB (cleated incline X slider bed) for carrying heavy unit loads up an incline in a steel slider bed.

Contact C&R Resources by email or phone 509-460-2425 with your incline conveying requirements for assistance in selecting the best design for your job.

A large cleated belt with sidewalls being installed