5 Typical Road Milling Teeth Wear & Tear

20. Jul. 2021

5 Typical Road Milling Teeth Wear & Tear

When it comes to maintaining road milling teeth and ensuring they last longer, wear and tear is often unavoidable. It's in your best interest as a contractor to be aware of factors that might cause rapid wear on the machine parts such as picking up foreign objects or unattended maintenance. Milling teeth are an integral part of construction projects and understanding how they can deteriorate quickly will enable you to develop strategies against damage caused by various reasons discussed in this article. Let’s look at five common types of road milling teeth wear & tear today!




Great Condition (hat-shaped):

The cutting tool wears fine, the tungsten steel tip is almost completely gone—no partial wear.



 Normal wear and tear (cylindrical shape):

The cutting tool wears fine, the rotating performance is good,
but the tip becomes shorter. When this happens , the cutting tool needs to be replaced.


Abnormal wear and tear (carbide tip partial wear):

The cutting tool wears fine, the plate slightly wears out, and the tip wears out partially. This cutting tool rotates well though.



Tip fracture:

The tip fracture is due to the milling teeth getting crushed on the steel bars or large stones under the ground. The milling team has to detect the road condition in advance. 


Steel body partial wear: 

Compared to the tip, the steel body and washer are worn out badly. Possible Cause: The milling machine advances too fast but the conveyor system ejects the waste material too slowly. In this case, if the milling drum keeps turning, the cutting tools will be damaged eventually.


6 Tips for Getting the Most out of Road Milling Teeth 

Tip 1: Avoid hard objects

The road contains hard objects such as steel bars, rocks, and gutter covers. If milling teeth encounter these objects, a tip fracture is more likely to happen.

Tip 2: Sufficient water spray during the milling process:

The milling process will generate massive heat for the milling teeth. When the milling teeth overheat, It will cause higher milling teeth consumption. To avoid too much heat, the water spray system should regularly check the drain and increase the cooling water.

Tip 3: Slowing the cold planer advance speed:

The higher advance speed will increase the consumption of milling teeth and decrease road surface performance (the wider length).

Tip 4: Optimal Milling drum speed:

With a  higher milling drum revolution, you need a slower or optimal machine advance speed to ensure that every milling tooth gets a uniform load. When it comes to an emergency project, forcing you to speed up both milling revolution and advanced speed. You may be facing abnormal wear and tear of the milling teeth. 

Tip 5: Check the milling teeth regularly: 

The cutting tool has been completely worn out and its service life has been exceeded. Milling teeth should be replaced immediately to maintain the milling performance.


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Tip 6: Avoiding abnormal wear and tear:


Sediment deposition will make milling teeth stop rotating during the process, increasing the possibility of abnormal wear and tear. Except that the unique design of the milling teeth can minimize the possibility of abnormal wear and tear. The efficient cooling water spray for the spring plate can avoid sediment deposition, increasing rotation performance. The team should check the water spray system regularly. Once the cutting tool has been removed, the crew should check whether the tool holder is clean without any dust or any partial wear on the tool holder.


Road milling teeth are an integral part of construction projects, and understanding how they can wear down quickly is key to developing strategies for protecting them. By following the six tips we discussed in this article—avoid hard objects, sufficient water spray during the process, slowing cold planer advance speed, optimal milling drum speed, checking the milling teeth regularly and avoiding abnormal wear and tear—you should be able to maximize efficiency and minimize damage from road millings teeth. With these practices in place, you’ll have a better chance of getting your project done on time with fewer complications.