Best Innovation Technologies

Components of a Belt Conveyor

A standard belt conveyor system has a head pulley, tail pulley, idler rollers, belt, and frame.

Head Pulley

The head pulley is coupled with the actuator and the electric motor. It drives the conveyor, acting as the pulling force. The head pulley is located at the point that the conveyor offloads, known as the discharge end of a belt conveyor. Since it drives the whole system, it is often necessary to increase the traction of its belt with a rough jacket covering its outer surface. The jacket is referred to as a legging.

The head pulley usually has the largest diameter of all the pulleys. Sometimes a system can have multiple pulleys that act as drive pulleys. The pulley at the discharge end, is a drive roller usually with the biggest diameter, and will be identified as the head pulley.

Return or Tail Pulley

This is located at the loading end of the belt conveyor. Sometimes it comes with a wing shape to clean the belt by letting material fall aside to the support members.

In a simple belt conveyor setup, the tail pulley will be mounted on guides usually slotted to allow the belt’s tension. In other belt conveying systems as we shall see, tensioning of the belt is left to another roller called the take-up roller.

Idler Roller

These are rollers employed along the length of the belt to support the belt and load, prevent sagging, align the belt, and clean up the carryback (material left sticking on to the belt).

Idler rollers can either do all of the above or any one of them, but in any space, they will always act as support for the belt.

There are many different idler rollers for different functions, as listed below:

Troughing Idlers

Troughing idlers will have three idler rollers set up in a configuration that makes a “trough” of the belt. They are located on the side that carries the load on the belt conveyor. The idler in the center is fixed, with the two on the ends able to be adjusted. This is so the angle and depth of the trough can be varied.

These idlers, when employed, will reduce spillages and maintain a constant cross-sectional area along the length of the belt conveyor. Maintaining a constant cross-sectional area is important for stability.

Rubber Disk Idler

This idler has rubber disks placed at set distances along the axis of the roller. On the extreme ends, the rollers are much closer so that they can support the belt edge, which is prone to tear. The spaced-out disks will break off any connected carryback/ leftover material and reduce material building up on the bottom of the belt. This is a common cause for mistracking (when the belt shifts to one side of the system and causes misalignment).

Screw Idler Roller

Sometimes the disks are helical like a screw and the idler will be called a rubber screw idler roller. The function will remain the same. An example of a screw idler roller is depicted below.

The screw idler can also be made out of rubber helix. Screw idlers are most common where a scrapper that takes off carryback would not be feasible, especially on mobile belt conveyors.

Trainer Idler

Trainer idlers keep the belt running straight. It works against mistracking. It achieves this by a central pivot that swerves the roller back to the center should the belt drift off to one side. It also incorporates two guide rollers to act as guides for the belt.

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Additional Information:

• Item Code: BESTROSERVICE2024
• Production Capacity: 200 LTER TO 100000LITER
• Delivery Time: 1DAY

ncorporated in the year 2019, BEST INNOVATION is a leading and renowned organization in the market. We are a globally known manufacturer and exporter of a range of Batch Ovens, Liquid Painting Plants, Powder Coating Plants, Belt Conveyor Ovens, Powder Coating Booths, Liquid Painting Booths, etc. These products are highly appreciated by the customers due to the quality, perfect finishing, reliability, longer functional life and much more. Since incorporation, our aim is focused towards fulfilling the demands of the global clients by offering them excellent quality range of Industrial Batch Ovens, Industrial Ovens, Conveyorized Ovens and Powder Coating Plants etc. A well-established company, BEST INNOVATION  is a leading manufacturer, wholesaler & exporter of a wide range of Industrial equipment such as the industrial oven, electrical ovens, industrial electrical ovens, drying oven. We have been catering to the engineering industry with our wide range of superior quality equipment.

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Additional Information:

• Item Code: BESTPCB2024
• Production Capacity: 500LTRS
• Delivery Time: 1WEEK
• Packaging Details: As par standard