How exactly do cold planers work?

[Mr. McTuggart]

What are they best used for on road or site projects? Are they mainly for asphalt removal, or can they handle other surfaces too? Also curious about maintenance and what to watch out for when running one.

 

[Big_Iron]

Cold planers are like asphalt surgeons, they shave off precise layers without disturbing the base. The rotating drum is packed with carbide teeth that grind pavement while a conveyor system scoops it straight into a dump truck. Fun fact: some models can mill up to 14 inches deep, which makes them useful not just for asphalt but also for concrete removal in site prep. Just watch those teeth-worn bits can wreck your cut quality fast.