Different types of conveyor idlers

We were discussing the conveyor idler selection and design procedure and also we have seen specifications of conveyor idlers with the help of our previous post. 

Lets see here the various types of conveyor Idlers with the help of this post.

Conveyor idlers are components of a conveyor belt system that support the belt and facilitate its movement. There are several types of conveyor idlers as mentioned here.

Troughing idlers

These are the most common type of conveyor idlers and are designed to support the conveyor belt and material being conveyed. They are typically installed in sets of three or five along the length of the conveyor and have a trough shape that helps to keep the belt centered.  

Figure 1 : Troughing Idlers 

Flat Idlers

These are flat, smooth-surfaced idlers that support the conveyor belt and provide a bearing surface for the conveyor rollers. 

Figure 2 : Flat Idlers

Return idlers:

These idlers are located on the underside of the conveyor belt and help to support the return run of the belt. They are usually installed in sets of two or three and are designed to prevent sagging or misalignment of the belt. 

Figure 3 : Return Idlers

Impact idlers

These idlers are used to absorb the shock of heavy loads as they are dropped onto the conveyor belt. They are typically installed at the loading point of the conveyor and are designed to cushion the impact and prevent damage to the belt. 

Figure 4 : Impact Idlers

Self-aligning idlers

These idlers are designed to automatically align the conveyor belt as it moves. They have a unique design that allows them to pivot and adjust to the changing direction of the belt. 

Figure 5: Self-aligning Idlers

Training idlers

These idlers are used to keep the conveyor belt running straight and true. They are typically installed in sets of two or three and are designed to apply a slight amount of pressure to the belt, which helps to keep it centered. 

Figure 6: Training Idlers

Garland idlers

These idlers consist of a series of rollers arranged in a V-shape. They are used in applications where the conveyor belt must negotiate tight turns or bends. 

Figure 7: Garland Idlers

Idler rollers

These are individual rollers that are used to support the conveyor belt. They are typically used in applications where space is limited or where the conveyor belt needs to be flexible. 

Spiral idlers

These idlers are designed to help the conveyor belt negotiate vertical curves. They have a unique spiral design that allows them to maintain contact with the belt as it moves up and down the curve.

Figure 8: Spiral Idlers

Also Read 

Conveyor Idler specifications 

Conveyor idler section and design procedure