Common Sanding Belt Problems and Possible Solutions

January 17, 2022

Common Sanding Belt Problems

The coated abrasives are used for multiple industrial applications. Cartridge roll, sanding belts, flap disc, flap wheels, and sandpapers are the main abrasive products. The sanding belts are used for high-speed sanding and finishing operations.

The sanding belts are available in many sizes and specifications to fulfill various applications like heavy stock removal, grinding, polishing, removing paint and stained metal surfaces, etc.

What are Most Common Sanding Belt Problems?

Everything which is used has validity. The 4x36 sanding belt is considered as most reliable and has a long life span when used for machining operations. When the sanding belts are used, they need to be used properly to get better results. The efficiency of the abrasive sanding belts can be affected by several reasons. 

Here are the most common sanding belts problems faced by the operators while using the belts for different finishing and grinding jobs.

1. Bad Belt Joint

The sanding belts can have some manufacturing defect at the belt joint that is not visible. It causes the failure of the belt at some point during the operation. 

Solution: To prevent failure of the sanding belt, you should use the belt in the recommended direction. Some of the sanding belts for metal are designed to use in one direction only. But others can be used in any direction. Properly check it before engaging it in any operation. 

Why Does My Belt Sander Keep Breaking Belts?

Excessive loading or pressure on sanding belts leads to breaking belts.

2. Excessive Loading or Pressure

Excessive load or pressure is the most common factor responsible for breaking 1x30 sanding belts. The excessive pressure and loading on the belts are due to the unwanted material stuck in the machine. Accumulation of this dirt and residue causes extra pressure on the belt and results in damage to the belt. 

Solution: Clean the workpieces and make them free from extra dirt and scale for smooth operation. Ensure the thickness of the workpiece is the same throughout the surface. You must select the suitable grit for your sanding application.

3. Damage While Handling

Coated abrasive belts absorb moisture easily if placed on floor or concrete surfaces. It causes damage to the belts and makes them useless for any operation.

Solution: It should be properly handled to get good results in the machining process. The sanding belts need to be packed and shipped properly with extra protection to retain their durable features. Hang the belts to a safer place before using them for any operation.

4. Incorrect Belt Tracking

The incorrect alignment of the belt at the time of machining results in the damaging of the belt during the operation. The belt undergoes extra tension and the surface gets weaker which affects the durability of the belt.

Solution: Using the wrong belt to get a higher removal rate can affect the stability of the belt. Adjust the tracking knob on the roller, to adjust the tension of the belt. Cut the 1 x 42 sanding belt properly to avoid the tracking problem. 

5. Overloading of Belt or Belt Burning

Sanding belts if used with excessive load continuously give bad results on the workpiece. There can be technical problems in the machine if the belts are leaving burning marks on the workpiece.

Solution: Storing the belts in a dry place is necessary to avoid their failure too early. In sanding operation keep varying the entry point on the belt to reduce the chances of wear.

Frequently Asked Questions-

How Do You Fix a Sanding Belt?

Following are the three important methods to fix a sanding belt:

Using Sanding Belt Adhesive

There are some adhesives available you can use to give your belt strength and good hold.

Using Joint Tape

The butt joint is made by joining the two ends of the belt with a small strip of tape.

Grease For Abrasives

The use of grease on belts and discs reduces heat and prevents gumming or loading.

How Long Do Sanding Belts Last?

The life of sanding belts depends on various factors. Mostly the belt material and its attached condition at the two ends. It can last up to 12-18 months if stored properly and used with proper recommended maintenance. If used in excessive loading and pressure conditions it will last lesser.




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