Metal Detector Conveyor Belts - Modular (MOD) versus Polyurethane (PU)

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What are the key differences between Modular (MOD) and Polyurethane (PU) Conveyor Belts?

Conveyor Belts are a key element to a well performing Automated Metal Detection System. Wedderburn's Metal Detectors are available with a choice of either Polyurethane (PU) conveyor belts, or Modular (MOD) conveyor belts, and it's important the right type is specified for your particular application and operating environment.

PU Conveyor Belts

Our polyurethane (PU) conveyor belts have a smooth surface that makes them very easy to wipe down. They offer good resistance to wear, abrasion and some fluids.

PU Belts are a friction drive system (they're adjusted tight against the rollers) and are suitable for transportation of light weight packets and foods. PU belts are smoother running with a quieter operation.

Modular Conveyor Belts

Modular (MOD) conveyor belts are more resistant to wear, abrasion and impact. Due to the open-link profile, they are suitable for high washdown areas.

The positive drive system means zero belt slippage and positive tracking that results in low tension and less wear and tear on motors and bearings. This makes them well suited to moving heavier or bulkier packages. MOD belts are generally used in heavy duty environments but this does mean more noise and vibration compared to a smooth PU belt.

What is a Positive Drive System?

In relation to our conveyor belts, the positive drive system works on a series of drive teeth that fit into the links of the conveyor belt to pull the belt along.

What are the benefits of a conveyor belt positive drive system?

The two main benefits of using a positive drive system for conveyor belts are zero slippage and positive tracking

Belt slippage can occur in friction drive belts when there is a loss of friction normally caused by moisture, fluid or weigh load. 

Poor tracking may occur in friction drive belts when the belt is not adjusted correctly or the load being carried isn't evenly distributed across the width of the conveyor belt, causing the belt to move to one side.

What should be considered when choosing the type of conveyor belt?

The friendly team at Wedderburn are here to help identify the best belt for your specific application. Some of the considerations will include:

What do the two types of conveyor belts look like?

You can see examples of each on the relevant product page...

Metal Detectors with PU Belt

Metal Detectors with MOD Belt

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